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I.lI:“JR?) )II I“ ’ II ,5'I'.,'I 493:3 'Inlfl I ‘ 'YI'I;1."._ ‘ ' '.$:I‘I"" j .I‘ I-IIIe'I'I :III‘I:‘.I'I' u. .41 I." ‘vj'! 'I'I‘II" "' IV'I‘I.‘I ' m. .III' II. .2»: . .I «II’I‘J w1' ~. -‘~. ' " - W I “M“ I' HIV '.‘2'. .. '~ -. ‘II II ' I I . I I:- . I I IIII .I. '.I Ian; .IIII-I I» I. .II.~ "I *1: IIIII ‘1'.) .I .. .,,- «I ... “x _ .. .. I . '.‘.' i, ‘ _ |‘:I I ,:.|I.”fIIIII“I‘ I ‘qu QII “w! ..III awnI:mI) II II 3 "IIJI'l,U I awn?)I a IIII :II II.I.I I“ I'I:II IIIII' , - ). 'I I'. ~ 3 ' | 0| l' . . . I . . 'I 1'7: l I ,‘I- ' £33?I III“: 12.3.2.1”,11“ ll «'1' . IIII-IIGI,v-I’. II lI“f‘ WHY: ' I III-III .2. 31* - . l? 5" n-—_ .r; . ......- "‘4' ' l 4 ' 5 ‘5'! This is to certify that the thesis entitled STRUCTURAL EVOLUTION OF SOUTHEASTERN MICHIGAN - MIDDLE ORDOVICIAN TO MIDDLE SILURIAN presented by Paul K. Mes Cher has been accepted towards fulfillment of the requirements for M. S . Geology degree in Major professor 6 Date Dec. 12, 1980 0-7639 44 WSW” ”Ill/I 010 ({fl“\\mL N“. ‘i‘“‘ll' \I” . ‘ 0912 WWE cargo? OVERDUE FINES: 25¢ per day per item RETURNING LIBRARY MATERIALS: Place in book return to remove charge from circulation records STRUCTURAL EVOLUTION OF SOUTHEASTERN MICHIGAN -- MIDDLE ORDOVICIAN TO MIDDLE SILURIAN By Paul K. Mescher A THESIS Submitted to Michigan State University in partial fulfillment of the requirements ' for the degree of MASTER OF SCIENCE Department of Geology 1980 ’ 7 / 4 ( , ' 4 1 / { 2 ’ ( ABSTRACT STRUCTURAL EVOLUTION OF SOUTHEASTERN MICHIGAN - MIDDLE ORDOVICIAN TO MIDDLE SILURIAN BY Paul K. Mescher The structural history of southeastern Michigan has been previously tied in with wrench fault mechanics related to compressional forces accom- panying the Appalachian Orogeny. For this study, the following lithostrat- igraphic units were studied: Middle Ordovician through Lower Silurian (complete), Ar2 Carbonate (Middle Silurian), and Dundee formation (Middle Devonian). Structural reversal is demonstrated along the Lucas-Monroe Mbnocline, suggesting that this feature is a true extension of the Bowling Green Fault. Faulting between two wells located on the northwest extension of this fault suggests that the forces responsible for the structural reversal progressed slowly along the fault. The Rovsek-Jorgensen #1 well appears to be a con- tinuation of the failed Precambrian rift valley prOposed by Hinze et al., (1969, 1975). Vertical offset in the Precambrian basement of the Northville Anticline has been estimated up to 1,000 feet by some authors. Therefore ‘fault movements appear to be dominantly vertical in this area, caused by shearing along pre-existing_lines of weakness in the Precambrian basement. As the result of regional tectonics exerting shearing forces, the base- ment surface in Michigan probably has an irregular surface that plays a ma— jor role in forming the structures visible in subsurface mapping of south- eastern Michigan. DEDICATION I would like to dedicate this study to my parents, Mr. and Mrs. Paul A. Mescher, for all the help and faith they have expressed to me throughout my career. ii ACKNOWLEDGMENTS The writer wishes to express his deep appreciation to Dr. James H. Fisher, chairman of the thesis committee, for his friend- ship, valuable suggestions and assistance and under whose guid- ance this study was undertaken. Special thanks go to Dr. C. E. Prouty and Dr. James W. Trow, other members of the committee, for their most appreciated advice, suggestions, and constructive criticism of this manuscript. Thanks also go to Dow Chemical Company of Midland, Michigan, 'for providing the financial assistantship that made it possible to complete this Master's program and provided valuable training for this thesis project. The writer gratefully acknowledges Mr. Garland D. E113 and Mr. Ronald E. Elowski of the Michigan State Geological Survey for discussions and assistance in providing gamma ray logs, state records, and well samples necessary for this study. Many well logs were also provided by Dr. Fisher, Dow Chemical Co.,and by my father, Paul A. Mescher. Finally, the writer wishes to express sincere gratitude to his parents for their encouragement during the course of these studies. A special thanks goes to my father, a petroleum geologist for over 30 years, for his unending patience and support} iii TABLE OF CONTENTS INTRODum ON C O O O O O O O O 0 General . . . . .'. . Purpose and Scope . . . . . . . . Procedure 9 Method of Study Location. . . . . .'. . Reliability of Data . . . . . . PREVIOUS WORK WITHIN THE MICHIGAN BASIN. STRUCTURAL HISTORY OF THE MICHIGAN BASIN REGIONAL STRATIGRAPHY. . . . . . . . . . Gene ta]. 0 O O C O I O O O O O O I 0 Upper Cambrian - Lower Ordovician. Middle Ordovician. . Upper Ordovician . . . . . . . . . . . . . . . . Lower Silurian Middle Silurian (A92 Carbonate . . Middle Devonian (Dundee Formation) MAP INTERPRETATION . . . . . . . . . Gene :31 C I O O O O O O O 0 Glenwood Isopach . . . Black River Isopach. . Trenton Isopach. . Utica Isopach . . . . . . Cincinnatian Isopachs. . . Unit One . Unit Two . . . Unit Three . Unit Four Unit Five . . . . . . . Cataract Isopach . Clinton Isopach . . . . . . . . . A92 Carbonate Isopach. Dundee Isopach . . . Trenton Structure. . . . A92 Carbonate Structure. Dundee Structure . . . iv Page H N ‘ - l u l U i U O \ 13 29 29 29 32 36 37 37 39 39 40 40 44 45 46 46 SO 50 52 52 S3 56 57 57 58 58 O O O O O I O O O O O O O O O O 0 PETROLEUM OCCURRENCE . . . SUMMARY AND CONCLUSIONS. . . . . . . . . BIBLIOGRAPHY . . . . . . . . . . APPENDIX (TABLE I) . . . . . . . . . . 61 . . . . . . . . . . . . 63 . . 69 . . . . . . . . Catalog of Wells Used in the Southeast Quadrant of Michigan's Lower Peninsula . . . . . . . . .I. 75 LIST OF FIGURES Stratigraphic Succession in Michigan . . . . . ... . . . A Representative Gamma Ray Well Log Section. . . . . . . Location Map 0 O O O 0 O O O O O O O O O O O O O O O O 0 Regional Structure Map of Michigan and Surrounding~ Area 0. O O O O O O O O O C O O O O O I O O O O O O 0 Regional Precambrian Structure Map . . . . . . . . . . . Major Structural Trends in the Michigan Basin. . . . . . l4 18 21 Aeromagnetic Map of the Southern Peninsula of Michigan . 23 Bouguer Gravity Anomaly Map'. . . . . ._. . . . . . . . 24 9. Precambrian Province 9 Lithology Map . . 10. Revised Basalt-Trough Model. . . . . . . . . . . . . . . . . . . . . 27 . . 28 11. Regional Trenton Structure . . . . . . . . . . . . . . 33 12. Dundee Isopach of Southeastern Michigan and Southwestern Ontario . . . . . . . . . . . . . . 13. North-South Cross-section across "Washtenaw Graben" . 14. East-West Cross-section across "Washtenaw Graben" . . . . 15. East9West Cross-section across Lucas - Monroe Monocline. 16. Diagrammatic Structural Cross-section across Lucas 9 Monroe Fau1 t O O O O O O O O O O O O O O < O O O O O 0 17. Structural Reversal across the Lucas - Monroe Fault. . . 18. Structural Cross-section between Two Nearby Washtenaw co‘mty Wells 0 O O O O O O O O O O O O O O O O O O O 38 42 43 48 49 51 55 19. Aligned Anticlinal Structures. . . . . . . . . . . . . . 59 vi Figure Page 20. Location of Rovsek - Jorgensen Well . . . . . . . . . . . . 65 21. Basement Structure. . . . . . . . . . . . . . . . . . . . . 68 vii LIST OF PLATES Plate (In Pocket) ISOPACH MAPS 1. Glenwood 2. Black River 3. Trenton 4. Utica Cincinnatian Series 5. Unit One 6. Unit Two 7. Unit Three 8. Unit Four 9. Unit Five 10. Cataract 11. Clinton 12. A92 Carbonate 13. Dundee STRUCTURE MAPS 14. Trenton 15. A92 Carbonate l6. Dundee viii INTRODUCTION General The Middle Ordovician carbonates of Michigan have long been a prolific hydrocarbon source, and their importance and potential as a petroleum reservoir has continued to grow throughout the years. Pro- duction from Albion-Scipio, Michigan's only class A field, comes from the Middle Ordovician Trenton and Black River formations. The Trenton- Black River is still considered by many geologists to be the most likely prospect for giant oil fields in the Michigan Basin (DeHaas, 1979). The Albion9Scipio field consists of several narrow linear oil fields located on or along a possible deep seated, dolomitized strike- slip fault or fracture zone trending northwest across Hillsdale, Jackson, and Calhoun Counties (Ells, 1962). There are numerous similar, though smaller fields located in southeast Lower Michigan. These include the Sumpter, New Boston, Deerfield, Summerfield, Freedom, Medina, and North- ville fields located in Washtenaw, Lenawee, Monroe and Wayne Counties. Total Petroleum has also made recent discoveries during 197991980 in Jackson County. While it is assumed that production is from fault or fracture zones, test wells have yet to be drilled to the basement on either side of the proposed Albion-Scipio fault system. This would conclusively prove whether there is any vertical offset to this system. ‘Merritt (1968) used a gravity study to conclude that vertical offset could be 1 as much as several hundred feet. The proposed basement faults are believed to be of Precambrian age (Fisher 1969 et.al). These old fault planes probably served as re- activation surfaces throughout geologic time and played an important role in the developmental history of the Michigan Basin. From regional studies by Ells (1969) and others, the southeast quadrant of Lower Michi- gan appears as a geologically complex and intriguing area. This new study attempts to shed further insight into the structural history of this area of the basin as well as outlining the potential for further pe- troleum exploration. Purpose and Scope Abundant subsurface data in the form of gamma ray logs, state drilling records, well samples, and a small number of well cores are available for the southeast quadrant of Lower Michigan. Well control is good in Jackson, Washtenaw and Lenawee Counties but tends to be quite sparse in eastern Wayne and Monroe Counties where the cities of Detroit and Monroe are located. The main purpose of this study is to determine the times when these faults were reactivated and the magnitudes of their vertical and/or lateral displacement. Three structural contour and 13 isopach maps, as well as stratigraphic cross—sections are used to relate the stratigraphy and faulting events to the evolutionary deve10pment of the Michigan Basin from Middle Ordovician (Glenwood) through Early Silurian (Clinton) time (Figure 1). In addition, the Middle Silurian A92 Car- bonate and Middle Devonian Dundee formations are mapped to provide in- sight into later geologic changes in this area of the basin. These l l a m 95!!! w madngulfi mcnnmmmaz .2 351.992 Egg my [Pill [IRIIII'I I: -u [lln'ill'lll lull-Ill R'll'lr'tllo- i! i- i [I‘ [3 II will; ”I." '5'. ll 'Ilu'pl [I I'll" II Il .lllllt .I I‘ll: ~I' [I It‘ll-Io, [I II I t C lllllloo- ill ""hl.‘ II.- ||If3 It'll..- 1." I.- U I'll..- III- 1' .Il'llo' ifI" '1’ [-i IPI-IIIII [I P. fl lfin'lll' I} Ii Ik' II..- .l'n III. III '.II .IBo' [Ii—III 'l' ...ll 0' Mnmcno H. mnumnumnnern mcnnmmuwon Hp zunrwmms maps may be found in the pocket located in the back of the thesis. Procedure -- Method of Study A threefold approach was used to attain data for use in map con- struction. (1) Gamma ray/neutron logs (primarily) were obtained from the Michigan State University Geology Department, the State Geological Sur- vey in Lansing, and the private collection of Paul Mescher, Sr. All available logs reaching the Dundee through Lower Ordovician were used. A total of 114 mechanical logs were reviewed for this study. (2) State drilling records were examined where there were no available gamma ray/neutron logs. These were obtained from the same sources as #1 above. Formation tops that were obviously incorrect or questionable were not used. A total of 203 state drilling records were reviewed, bringing the total number of well locations to 317. (3) Samples were used to spot check areas where gamma ray logs were unavailable and state drilling records were in doubt. These were again obtained from the State Geological Survey in Lansing and the Michi- gan State University Geology Department. Most of the samples viewed were rotary samples although a few shallow wells had cable tool samples. Sam- ples were examined using procedures outlined in the Quarterly of the Colorado School of Mines ("Examination of Well Cuttings," Vol. 46, No. 4, 1951). ' All samples were examined using a binocular microscope with a range of lenses from 10x to 40x. An incandescent light source and a fluorescent light source were used to accurately determine colors and grain details. Carbonates were differentiated using a mixture of seven parts water to one part concentrated hydrochloric acid. Only four sample sets were reviewed for this paper. The bulk of the data was obtained from methods two and three for use in cor- relating 1ithostratigraphic units. Of great help in correlating gamma ray logs were the strati- graphic cross-sections prepared by R. T. Lilienthal (1978), a State Survey geologist. These cross-sections criss-cross the state and were thoroughly tested during the author's association with Dow Chemical Co. Of particular interest was the subdivision of the Late Ordovician Cin- cinnatian Series into five persistent lithostratigraphic units. Nurmi (1972) made a similar fivefold subdivision of the Cincinnatian Series. However, his classification also included the Utica Shale as a sixth unit. Other differences become obvious in Figure 2. Lilienthal did not continue his Cincinnatian units into eastern Wayne County, but the author found no apparent problems in correlating, unit tops in this area. Lessee The area of study consists of the southeast quadrant of the Southern Peninsula of Michigan (Figure 3). This includes about 402 of Jackson County, and Washtenaw, Wayne, Lenawee, and Mbnroe Counties in their entirety. Reliability of Data The main problems encountered in this study were poor well coverage in eastern Wayne and Monroe Counties and inaccuracies en- countered in state drilling records. Many times these apparent errors were in very old entries recorded when Michigan's stratigraphic suc- cession was not as well understood, or when only the driller was Nurmi 1972 Lilienthal 1978 Manitoulin Manitoulin ~-—— - E :. Cincinnatian Unit 6 Cincinnatian Unit 5 Unit 5 a Unit 4 Unit 4 Unit 3 '5 Unit 3 Unit 2 ‘_ '§ Unit 2 I]. 3 , § Unit 1 t-i rig. an; 1! Ii Unitl (Utica) 1§ 1!: ILQ' Utica E Trenton Trenton Ljél *‘f’ u l g : '7. I. Figure 2. A Representative Gamma Ray Well Log Section LAKE It CLAIR Area of Study (.408! Ill! CANADA 0 =3 It I Ill-flu Figure 3. Location Map responsible for noting formation tops. The only major discrepancy noted in comparing Lilienthal's lithostratigraphic units to formation tops picked in state records could be seen in choosing the top of the A92 Carbonate. This top was consistently picked five to ten feet higher in the column in state rec- ords than those chosen by Lilienthal. PREVIOUS WORK.WITHIN THE MICHIGAN BASIN Merritt (1968) made a gravitational study of the Albion-Scipio field in an attempt to determine vertical offset in the Precambrian basement complex. Later, Hinze and Merritt (1969) conducted a gravi- tational study of the entire basement complex of the Lower Peninsula. Laaksonen (1971) examined the basement lithology of the Michigan Basin using well cuttings. Cohee (1947, 1948) investigated the Cambrian and Ordovician of the Michigan Basin and adjoining areas using cable tool samples. Ells (1967) prepared a stratigraphic cross-section of the Cambrian and Ordo- vician formations based on gamma ray logs and similar lithologies for a limited number of wells. Catacosinos (1972, 1974) studied Cambrian lithostratigraphy using gamma ray logs, state records, and well cuttings. Syrjamaki (1977) studied the Lower Ordovician Prairie du Chien forma- tion using gamma ray logs, state records, and the previous work of Co- hee. Ordovician studies have been carried out in adjacent areas by Gutstadt (1958) in Indiana, Sanford (1961) in southwestern Ontario, Buschbach (1965) in Illinois, and Stelzer (1966) in Ohio. The Trenton unconformity problem was examined in regional detail by Rooney (1966) and others. Hussey (1950) examined Middle Ordovician rocks outcrOpping in the vicinity of Escanaba in Michigan's Upper Peninsula. Seyler (1974) 10 made a structure and isopach study of Michigan's Middle Ordovician sub- surface using gamma ray logs. Newhart (1976) studied the carbonate fa- cies of the Trenton - Black River. The Upper Ordovician Cincinnatian Series was studied by Nurmi (1972), as discussed earlier. Much of the early work on the Lower Silurian was descriptive rather than interpretive, or consisted of a total group study. Cohee (1948) lumped the Manitoulin and Cabot Head formations into the Cata- ract Group due to their gradational contact and a lack of well con- trol. Various studies looked at the Lower Silurian in limited areas of the Michigan Basin (Ehlers, 1962; Ehlers and Kesling, 1957,-~ Shaver, 1974). Brigham (1971) did a structural study including the Silurian Vfor southwestern Ontario and southeastern Michigan. Lower Silurian out- crops have been described on Manitoulin Island by Bolton (1968), in eastern Wisconsin by Shrock (1938), and in Indiana by Pinsak (1964). Potter (1975) conducted a Lower Silurian subsurface study based on gamma ray logs. Many studies have been made of the Middle Silurian Niagaran Series due to petroleum occurrence in pinnacle reefs. The original sub- surface terminology in Michigan was developed by Landes (1945). His division of the Salina into eight primary units (including the A92 Carbonate) is the most widely used classification today. Evans (1950) modified this system slightly. Ells (1958, 1960, 1963, 1969) has cor- related the various Silurian units in detail around the various Niag9 aran pinnacle reef oil fields and the Albion-Scipio field. Fisher et a1 (1969) has also done detailed correlation in the Michigan Basin. Fin- cham (1975) studied the Salina units in the subsurface using gamma ray logs. ll Niagaran reef faunas have been studied in great detail by Cummings and Shrock (1928), Lowenstam (1950), Huh (1973), and many others. Shaw (1975) concluded that Niagaran reef thicknesses were di- rectly related to structural trends in the underlying strata. On a regional scale the works of Cohee (1948), Melhorn (1958), Ehlers and Kesling (1962), Sanford (1972), Mesollela (1974), and many others are extensive: The Devonian as a whole has been isopached using gamma ray logs by Fisher (1969). Gardner (1974) also used gamma ray logs to make a regional stratigraphic and depositional environment study of the Middle Devonian in the Michigan Basin. Landes (1951) studied the Detroit River Group, and the possibility of a Middle Devonian unconformity was exam- ined by Newcombe (1930). Bloomer (1969) described lithology and porosity in a Middle Devonian Dundee core. Other Dundee carbonate studies have been carried out by Tinklepaugh (1957), Jackson (1958), Dastanpour (1977), Hamrock (1978), Hyde (1979), and Ten Have (1979). Several comprehensive Michigan Basin studies have also been of great interest. Ells (1969) wrote "The Architecture of the Michigan Basin,‘ ' an excellent structural summary. This was complemented by Fisher's "Early Paleozoic History of the Michigan Basin." Fisher also presented a "Structural History of the Michigan Basin" at the 1979 meet- ing of the Michigan Basin Geological Society. A most helpful recent‘state publication by Lilienthal (1978) illustrates the gamma ray curves used in preparing his cross-sections. This aided immeasurably in correlating the wells used in this study. The cross-sections cover virtually the entire Lower Peninsula of Michigan, 12 and include Jurassic through Cambrian formations and Upper Precambrian, depending on the location and total depth of the well. STRUCTURAL HISTORY OF THE MICHIGAN BASIN The Michigan Basin is a roughly circular, symmetrical auto— geosynclinal or intracratonic basin located in the Central Interior Platform of the United States. It includes the Southern Peninsula and the eastern part of the Northern Peninsula of Michigan, eastern Wisconsin, the northeast corner of Illinois, northern Indiana, north- west Ohio, and parts of Ontario bordering Lake Huron, Lake St. Clair, and the western end of Lake Erie (Figure 4). Surrounding the basin are numerous positive structures. These include the Algonquin Arch to the east (Ontario), the Findlay Arch to the southeast (northwest Ohio), the Kankakee Arch to the southwest (north Indiana),the Wisconsin Arch to the west (central Wisconsin), and the Canadian Shield to the north and northeast (Canada). The total areal extent of the basin has been esti- mated at 122,000 square miles (Cohee, 1965). . Through the years there has been considerable controversy over the age and roles these structures played in influencing the structural history of the Michigan Basin. Most writers have agreed that the Algon- quin Arch was a positive feature during part of the Paleozoic. Sanford and Quillian (1958) used isopach maps to show that the transgressive overlap of Upper Cambrian units onto the arch indicates its presence in Upper Cambrian time at least. Sutterlin and Brigham (1967) proposed a Precambrian age for the arch due to the thinning of Upper Cambrian rocks over local Precambrian highs. They stated that the highs were erosional 13 14 LAKE SUPER/0R \~. c AN ADA UPPER ’ MICHIGAN .\ - MICHIGAN BASIN HOWELL ANTICLINE “”5 \ .......... “ ALBION- SCIPIO-’\ TREND LA/tt/ ILL. LUCAS- MONROE , 1111333331“ ............... ........... .. ~ - " ....” ............... .......... ... ...... MONOCLINE & NW EXTENSION ............ ................ ........... .................. ......... Regional Structure Map of Michigan and Surrounding Area [modified from Green (1957), Prouty (1974), and Fisher (1979)] Figure 4. 15 .features present prior to deposition. Cohee (1947), Kay and Colbert (1965), and Brigham (1971) all believed that the absence of Lower Or- dovician rock from southeastern Michigan and western Ontario was the result of intense erosion during Post-Knox unconformity time. The Findlay Arch also has its own history. Pirtle (1932) be- lieved the arch originated primarily during Cincinnatian time. Lock- ett (1947) tied the Algonquin and Findlay Arches together. Sanford (1961) used lithologic data and isopach mapping to show Lockett to be in error, stating that the Findlay Arch was not prominent until Upper Ordo- vician or Late Trenton time. Cohee (1948) inferred the presence of the arch in Upper Cambrian time due to the erosion of Upper Cambrian and Lower Ordovician formations in southeastern Michigan and northeastern Ohio, and the absence of Cambrian and Lower Ordovician rocks in Ontario. Woodward (1961) believed the Findlay Arch was present during the Lower Ordovician, while Janssens and Stieglitz (1974) postulated a Devonian} age. Lockett (1947) believed the Chatham Sag to be a breach in the older Algonquin - Findlay Arches due to the subsidence of the adjacent Michigan and Appalachian Basins. Green (1957) believed the Algonquin and Findlay Arches were a tectonically related continuation of the Cin- cinnati Arch. Sanford (1961) stated that there was no tectonic rela- tionship to the arches. Instead, he thought the Chatham Sag was the result of a downthrown, faulted basement block. Pirtle (1932) believed the Kankakee Arch had a Precambrian age and was a southwest extension of the Wisconsin Arch. Ekblaw (1938) be- lieved this structure had a Lower or Middle Ordovician origin. This was later verified through the use of isopach mapping by Cohee (1945), 16 and Swann (1951), who showed that the development of the Kankakee Arch did not occur until after Prairie du Chien time. Green (1957) related the structure in the Findlay, Kankakee, and Cincinnati Arch regions to basin subsidence rather than structural uplift between basins. He then prOposed that the term Kankakee Arch be dropped due to a lack of evi- dence for true arching extending from Indiana to Illinois. Pirtle (1932) believed that the Wisconsin Arch showed upward movement during the Precambrian. Workman (1935) and Snyder (1968) as- signed a Pre-St. Peter age, and Workman stated that portions of the arch were eroded as low as the Franconia formation. Cohee (1947) con- sidered the arch to have an Upper Cambrian or Lower Ordovician age based on dolomite-sand ratios and their occurrences in the Eau Clair, Tremp- ealeau, and Prairie du Chienformations of Wisconsin and Michigan. The origin of the Michigan Basin has been the subject of many debates since Douglas Houghton first studied the rocks of the Northern Peninsula in 1814. Pirtle (1932) studied fold trends in the Michigan Basin and concluded that these folds were controlled by trends of weak- ness in the Precambrian basement rocks. He suggested that the folds were due to vertical forces associated with horizontal compression that was most intense after Middle Mississippian time. Newcombe (1933) also believed that Precambrian basement faults controlled the localization of en echelon folds present in the Michigan Basin. He felt that these structures reflected the result of shearing. that developed in the basement complex during the Keweenawan Disturbance. The principal folding of the anticlinal trends was believed to have oc- curred during the Late Devonian, with subsequent movements during the Late Mississippian accentuating the structures. l7 Kirkham (1937) dismissed tangential and horizontal mountain- building forces from having a role in the origin of the Michigan Basin. He believed the shifting of large magma bodies from one area of the earth's crust to another created a "downwarpingU rather than a true basin. During this movement the Precambrian surface became marked by .faults, rifts, joint systems, and shear zones, creating lines of weak- ness along which vertical forces could act later. Step faults along. these lines could then create subparallel anticlinal trends. Lockett (1947) claimed that the dominant positive structures surrounding the Michigan Basin were the cores of Precambrian mountains. The principal "movements" of these structures during the Paleozoic were the result of basin subsidence. The weight of sediments derived from these mountains provided the subsidence mechanism. Continued sedimentation caused differential subsidence along lines of weakness in the Precambrian basement, particularly on the basinward sides of these lines. Lockett attributed the mid-basinal anticlinal trends to this subsidence rather than orogenicforces. A regional Precambrian structure map is included here for future reference (Figure 5). It was constructed by splicing together maps by Brigham (1971) and Hinze et.al.(1975). Kilbourne (1947) attributed the formation of the Howell Anti- cline to normal faulting in the basement rocks. Paris (1977) later tied the development of the Howell Anticline in with the compressional forces of the Appalachian Orogeny. Kilbourne gave a Goldwater age to this structure, while Paris ascribed a Late Salina age. Cohee and Landes (1958) claimed that the Michigan Basin first expressed closure during Late Silurian time, with great downwarping. 18 . . --.._1‘ ' I I WHOOO/ Figure 5. Regional Precambrian Structure Map ' [modified from Brigham (1971) and Hinze et.al.(1975)] 19 ’features present prior to deposition. Cohee (1947), Kay and Colbert (1965), and Brigham (1971) all believed that the absence of Lower Or- dovician rock from southeastern Michigan and western Ontario was the result of intense erosion during Post-Knox unconformity time. The Findlay Arch also has its own history. Pirtle (1932) be- lieved the arch originated primarily during Cincinnatian time. Lock- ett (1947) tied the Algonquin and Findlay Arches together. Sanford (1961), using lithologic data and isopach mapping, differed from Lockett, stating that the Findlay Arch was not prominent until Upper Ordovician or Late Trenton time. Cohee (1948) inferred the presence of the arch in Upper Cambrian time due to the erosion of Upper Cambrian and Lower Ordovician formations in southeastern Michigan and northeastern Ohio, and the absence of Cambrian and Lower Ordovician rocks in Ontario. Woodward (1961) believed the Findlay Arch was present during the Lower Ordovician,. while Janssens and Stieglitz (1974) postulated a Devonian age. . Lockett (1947) believed the Chatham Sag to be a breach in the older Algonquin-Findlay Arches because of the subsidence of the adjacent Michigan and Appalachian Basins. Green (1957) believed the Algonquin and Findlay Arches were a tectonically related continuation of the Cincinnati Arch. Sanford (1961) stated that there was no tectonic relationship to the Algonquin and Findlay Arches. Instead, he thought the Chatham Sag was the result of a downthrown, faulted basement block. Pirtle (1932) believed the Kankakee Arch had a Precambrian age and was a southwest extension of the Wisconsin Arch. Ekblaw (1938) be- lieved this structure had a Lower or Middle Ordovician origin. This was later verified through the use of isopach mapping by Cohee (1945), 20 during the Salina, Bass Islands, and Detroit River times. They also stated that folding of the sedimentary rocks occurred intermittently throughout the Paleozoic, with the greatest episodes of deformation during the Late Mississippian and pre—Pennsylvanian. The main struc- tural traps were presumed formed "or at least sharpened" during these times. Fisher (1969) stated a Middle Ordovician origin for the present basin. This conclusion was later substantiated by Seyler (1974). Catacosinos (1972, 1974) and Prouty (1970) have suggested that an embry- onic Michigan Basin could have existed during the Late Cambrian. Ells (1962, 1969) and Prouty (1970) have summarized notable trends within the basin, including; (1) NW 9 SW folding with evident lateral faults; (2) fairly definite radial-likefold patterns; (3) persistent joint patterns at several rim locations (Figure 6). Prouty also concluded that the basic structural patterns of the basin, in- cluding basement lineations and bordering structures, were inherited from the Precambrian. ' Moody (1973) attributed the brecciation and fracture-type por- osity of the Albion-Scipio field to wrench faulting. Harding (1974) modeled strike-slip faulting in the laboratory and noted the similarity of his divergent wrench model to Trenton structure of the Albion-Scipio trend. Prouty (1976) used LANDSAT imagery studies to conclude that lineaments gleaned from the studies are shear faults, that most basin folds are fault related, that the majorfaulting and folding occurred in pre-Marshall9Mississippian time, and that the shearing stresses are related to structural activity in the Appalachian region. 21 ,.L/. 12’..L_'_{/.'_._:-- ' ‘flUKJII/i: a I .... LII—"..." 9 O I 'L.'/ , t” 3‘... all! '\.. U 0 ° a I. i i I % ' A . u \r . I '\ n ' Figure 6. Major Structural Trends in the Michigan Basin (compiled by'Prouty, 1971) ' 22 Hinze (1963) prOposed yet another origin for the Michigan Ba- sin. Using extensive gravimeter and magnetometer surveys of Michi- gan's Lower Peninsula (Figures 7 and 8), he suggested that the basin may have formed as the result of isostatic sinking in response to the added mass of Keweenawan basic lavas in the basement complex. Haxbe, Turcotte, and Bird (1976 proposed a related thermal con- traction mechanism for the evolution of the Michigan Basin. Their model involved mantle diapirs rising to about the Moho, heating the lower crustal rocks. The heating caused a transformation of the meta-stable gabbroic rocks to eclogite. When the mantle rocks began to cool by con- duction, the basin isostatically subsided under the load of the eclogite. Merritt (1968) conducted a gravitational study of the Albion- Scipio oil field and concluded that there was significant evidence for petroleum production to be tied~in with a basement fault or fault line scarp having around 800 feet of relief. Hinze and Merritt (1969) noted that the magnetic map and the Bouguer gravity anomaly map closely parallel the northwesterly trends of the mid-basin anticlines. They attributed this close alignment of intrabasin structures and geophysical anomalies to lines of weakness in p the basement complex that are associated with a rift zone filled with basalts. They noted that the dominant feature of the Bouguer gravity anomaly map is the Mid-Michigan anomaly or "high" that transects the Michigan Basin. Shaw (1971) conducted a mobile ground magnetometer survey of a portion of the Southern Peninsula of Michigan. The survey area ran east-west from Allegan County to St. Clair County. He concluded that the basement in this area was dominantly granitic, with the exception of the area of the Howell Anticline, which was interpreted as having a mafic * - ° .- ' ' n ' -" .. "' I f — . . -- . '.- ' V . Meal“ .1 loom“ d “on“ . lull". "no lam-n. . I". run comm llfllflll n...“ ... _' hum-4 I1 mull Sum bimbo. Down-III u lam-I Iona-u- !“an Fool-nu 0| Imm- houu nunu I. Ian-u ...-1 Figure 7. Aeromagnetic Map of the Southern Peninsula of Michigan (from Hinze, 1963) M~Mmuew,uc I elem: Ilean- “"- 5f o , ' . - - . . -. § 8 ' nee-u um" "I! I” _ sue-In - PM ‘5' “duke! Sum emu“. he I! new... "rel meme u a sale 0111...,“ c of I u u ma'..'. ' ' " ‘1’ ' “ /.. \ ‘7‘ _ t . . , ._ an .0 Ion" e0 lumuum I. Cod-cued Cy mum. , . . Q - . ‘ . f 3.4. ‘V “ A i . n. , .‘.m.:.::.':':m Lyman...» CullIl ‘0 reel «out! 0! I." Ill-I am ul n y ‘ ' N l ‘ '; . V: V, Figure 8. Bouguer Gravity Anomaly Map (from Hinze, 1963) 25 composition. Oray et. a1. (1973) used geophysical studies to show that the source of this anomaly was related to the Lake Superior Basin and Keweenawan rocks associated with the Mid-Continent anomaly running from Lake Superior to Kansas (Craddock, 1972). Basement test lithologies have been summarized by Hinze and Merritt (1969), Laaksonen (1971), and Fisher (1979). Lithologies en- countered include granite, granite gneiss, quartzite, redbeds or "gran- ite wash," and diorite dikes. Hinze et. a1. (1975) also stated that al- tered mafic volcanic rocks (greenstones) were encountered in Presque Isle County near the northern tip of the Southern Peninsula. True ba9 salts have yet to be found. Ocala and Neyer (1973) stated that geophysical evidence indi- cates the Precambrian basement has been disturbed beneath and marginal to the Mid9Michigan gravity anomaly. Hinze et.al. (1975) stated that data from outcrops, drill holes, and gravity, magnetic, seismic, and heat flow investigations indicate that this anomaly is directly related to mafic extrusive and intrusive rocks that "commonly‘ are in horsts flanked by sedimentary basins." Thus it would appear that the Mid-Continent and Mid- Michigan anomalies and the Lake Superior Basin are part of a failed Ke- weenan continental rift system (Cambray, 1979 et. al.). Innes (1967) sug- gested an analogy with the East African Red Sea rift system. In 1970 the MObil 9 Messmore #1 (Livingston County, Sec. 11, T3N, RSE) penetrated the Precambrian within the boundaries of the Mid-Michigan gravity high. The basement material consisted of quartzite rather than basalt, although the state drilling record for this well records Cambrian quartzite with "some pebbles...(and) a boulder of extrusive rock (ba9 salt?)" immediately above the Precambrian contact. Hinze et. a1. (1975) 26 have interpreted the absence of basalt to the effects of the Grenville Orogeny, which is believed to have affected this area "and subsequently complicated and perhaps altered the basement geology so that the basalt, at least locally, is not present." In 1975 the McClure-Sparks et. al.#l well (Gratiot County, Sec. 8, T10N, R2W) also penetrated the Precambrian of the Mid-Michigan gravity high. Here drillers encountered "granite wash" (redbeds), diorite dikes, and possibly some basalt and slickensided material (State Drilling Recofid). A summary map showing the Mid-Michigan gravity high, basement tests, and Precambrian provinces may be seen in Figure 9. Gregg (1979) studied one of the cores from the Sparks well. He stated that the granite wash consisted of interlaminated red siltstone and gray sandstone derived from a granitic source region. The sediments were probably deposited in a fluvial or deltaic deposit, possibly a flood plain. Hinze et. a1. (1975) summarized several basalt-trough models in their study, and Fisher (1979) has speculated that the Mid-Michigan gravity high represents a rift or graben, with the Sparks well showing the possi- bility of 5000+ feet of Precambrian (?) redbeds in its upper portion. A revised basalt-trough model is shown in Figure 10. Fowler and Kuenzi (1978) suggest that the redbed sequences represent shallow marine turbidites deposited.within the failed Keweenawan rift val- 1ey. 9 o . a) . . 27 granite “73811 6 granite 9 N \ quartzit 4 4. 4’ .quartzite V . quartzite . Q 0 ‘ g a 0 ’ U _, 4 cCLURE-SPARKS #1 \’Edbed:/ /’ L. 1 3 . 7 ‘ BIL-MESSMORE Mme-1 schist § R Q ‘ § Q ‘ i .. § ‘ .‘ grani te granite o granite \granite .gr\ani\t:\ gneiss 0. gran \ \ e LAKI’ (Ill Penokean 1 6 _ 1' 8.Keweenawan "Rift" 1. 05° 9 1.15 b.y- El Central b.y I I: II no. OE 1.2 _ 1311.; E Grenville .8 - 1.1 b.y. 0 Precambrian Test Dominant Struct.Trend Precambrian Province - Lithology Map Figure 9. (modified from Hinze et a1 1975 and Fisher 1979) 28 A A A A I A A A l A ! : 8 “.... 7‘...‘ ..7:.: ‘ - . E3 OUARTZITE Eacfluuurt IIIBAsALT 1' ‘6233 ‘ 3 11503503 Figure 10. Revised Basalt-Trough Model [modified'from Hinze et. a1. (1975) and Fisher (1979)] REGIONAL STRATIGRAPHY General Group and formation names are based on the stratigraphic chart shown previously (Figure 1). Formation contacts were based on work done by the Michigan Basin Geological Society (Fisher, et.al, 1969). The Cincinnatian Series was subdivided using Lilienthal's stratigraphic cross-sections (1978). Cambrian-Lower Ordovician The Post-Knox Unconformity plays an important role in the later discussion of the Glenwood isopach. Syrjamaki (1977) summarized the literature on the Upper Cambrian-Lower Ordovician of Michigan in this manner: 1) The Post-Knox Unconformity occurred at the end of Prairie du Chien time. Thus, the Prairie du Chien, where present, has an ero- sional surface. 2) In Michigan, the Glenwood is transitional with the overlying. Black River formation. 3) Where the Prairie du Chien is missing, erosion has occurred to the Trempealeau formation. Several southeastern Michigan state drilling records list the presence of the St. Peter Sandstone between the Glenwood Shale and the Prairie du Chien Group. However, Horowitz (1961) and Balombin (1974) have shown the St. Peter to be limited to the western side of the state. 29 30 Catacosinos (1972, 1974) assigned this sandstone to the Jordan member of the Lake Superior Group and/or the Prairie du Chien Group. It should be noted that the writer was most concerned with ac- curately picking the base of the Glenwood Shale rather than conclusively identifying the underlying strata. For an extensive review of the Lower Ordovician in Michigan, see Syrjamaki (1977). Middle Ordovician Syrjamaki (1977) has demonstrated that the Wisconsin Arch served as the source area for the Lower Ordovician New Richmond interval in the Michigan Basin. During Lower Chazy (Glenwood) time the source area ap- pears to have shifted to the Appalachian borderland (Prouty, 1979, per- sonal communication). Seyler (1974) states that the Glenwood apparently represents sediments derived from erosion of Upper Cambrian-Lower Ordo- vician formations and deposited by a transgressing Middle Ordovician sea. Catacosinos (1974) described the Glenwood of the Michigan Basin as "an interbedded sequence of green shale, gray dolomite, thin sand- stone, and limestone which everywhere lies unconformably on older rocks." In southern Michigan he categorizes the Glenwood as a thin green shale occasionally interbedded with thin sandstone beds. The Glenwood "Extra Section" is an informal term coined by Cata- cosinos (1972). It supposedly refers to a basal limestone of the Black River formation that can be picked on gamma ray logs and used as a strat- igraphic marker on the eastern side of the Michigan Basin. Syrjamaki (1977) stated that he was able to trace this marker on gamma ray logs north through Huron County and west through Lenawee, Hillsdale, and Branch Counties. However, he stated that outside of this area the curve 31 loses definition due to increasing thickness and changing lithology of the Prairie du Chien, problems with the erosional contact of the Post- Knoinnconformity, and unsure boundaries of the St. Peter Sandstone. For this study, "standard" picks of the top and base of the Glenwood were made using Lilienthal's cross-sections. The Black River in the Michigan Basin generally consists of light brown to grey, fossiliferous, dense to crystalline limestone and dolomite. Cohee (1948) and others have demonstrated localized second- ary dolomitization around apparent fault and fracture zones, and New- hart (1976) has shown that the unit as a whole becomes more dolomitic toward the Wisconsin Arch. Seyler (1974) states that a thin bed of very argillaceous limestone and shale occur at the base of the Trenton and top of the Glenwood. Seyler (1974) used isopach mapping to show that during Black River time, the region was an embayment of the Middle Ordovician sea Open to the southeast and thickening locally in the southern Lake Huron area. He characterized the Black River sea as shallow, with the area steadily subsiding, as shown by the thick carbonates and abundant fos- sils. The trenton in the Michigan Basin is lithologically similar to the Black River. It generally consists of light brown to gray, fossil- iferous, crystalline limestone and dolomite. It is generally more fos- siliferous and demonstrates similar, though more pronounced patterns of secondary dolomitization. Of particular interest is the "mushroom? ing" pattern of dolomitization and hydrocarbon migration below the im- permeable Utica Shale. In 1946 Landes wrote his classic paper on the 32 origin of secondary dolomitization, and tied in earlier theories for magnesium-rich waters ascending fracture systems to the Trenton lime- stone in the Lima-Indiana oil field of northern Ohio. These ascending. waters created secondary (epigenetic) dolomite, often having sufficient secondary porosity for petroleum migration and entrapment beneath the Utica Shale "caprock." Newhart (1976) believed the driving force of this mechanism in the Trenton-Black River of Michigan to consist of water entering strata of the Wisconsin highlands, migrating down dip through fracture systems and finally ascending fracture zones and faults in the Michigan Basin. He did not specifically name the formation(s) that were most likely avenues for this fluid migration. The regional Trenton structure map (Figure 11) is quite simi- lar to the Precambrian structure map shown previously (Figure 5). How- ever dips of the Trenton strata are not as great due to thicknesses of the Upper Cambrian and Middle Ordovician sections increasing basinward (Brigham, 1971). Mbre structural features in southeastern Michigan are 'apparent due to increased well control. Seyler (1974) used isopach mapping to demonstrate that closure of the Michigan Basin occurred during Trenton time. He characterized the Trenton sea as shallow, with the basin steadily subsiding as shown by the abundance of fossils and thick carbonates. Upper Ordovician Nurmi (1972) studied the Upper Ordovician of the Michigan Basin. He and Lilienthal (1978) divided the Upper Ordovician into units as shown previously in Figure 2. For convenience, Nurmi's units will be shown in parentheses. 33 Figure 11. Regional Trenton Structure (from Fisher, 1972) 34 The Utica Shale (Unit One) is characteristically gray to dark gray in the upper section and dark gray to black in the lower section. Nurmi (1972) states that the entire unit becomes browner in the Lena- wee County area, but still shows the trend of darkening toward the base. He also noted thin interbedded limestone stringers in the south- eastern Michigan counties. Nurmi (1972) stated that anomalous thickening and thinning of this unit appear to be related to structures shown on the Trenton struc- ture map. He also noted that the Utica Shale (Unit One) thinned over .the Howell and Northville anticlines. The Albion-Scipio field evaluated by Ells (1962) shows an anomalous thickening of this unit. After pers- onal communication with Ells (1972), Nurmi stated that the thickening was probably "due to tectonic activity along 'The Trend' rather than the solution-erosional feature described by Rooney (1966)" and later by DeHaas (1979). From fossil studies Nurmi concluded that the Utica Shale (Unit One) represented a shallow near-shore environment. (Unit Two) corresponds to the top 30 feet or so of the Utica Shale. Nurmi stated that it thinned toward the center of the basin and over structures, and was at times difficult to pick. Units One, Two, and the lower portion of Three correspond to Nurmi's (Unit Three). He described this sequence as a complex pat- tern of lithologies that could have been subdivided in a number of ways. In southeastern Michigan this sequence consists of gray to greenish- gray shales interbedded with thin beds of gray, argillaceous limestones. Nurmi states that the limestones thicken to the north and are dolomi- tized in southwestern Michigan. The center of the basin is comprised 3S predominantly of fossiliferous limestone with minor shale breaks, with shale content increasing toward the basin margins. He also noted that this sequence was thickest in southeastern Michigan and speculated that the shales in this area represented pro-delta terrigenous clas- tics of the westward prograding Appalachian delta complex. By study- ing the fossil assemblage Nurmi concluded this sequence represented a low intertidal through high subtidal environment. The upper portion of Unit Three corresponds to Nurmi's (Unit Four). It is characterized as a massive, slightly argillaceous dark brown limestone that is thickest in the basin center. Bryozoans are the dominant fossil. Nurmi used bryozoan morphology to characterize the depositional environment as shallow neritic below mean wave base. Unit Four (Unit Five) has been characterized by Nurmi as a sequence of interbedded carbonates and shales. The carbonates tend to be argillaceous in the center of the basin, and grade vertically and laterally into dolomites. Shales tend to be gray in the center of the basin, grading vertically and laterally into gypsiferous red and green shales. Nurmi (1972) noted an anomalous thinning of this unit in the northern St. Clair County — southern Ontario area and attributed this to erosion rather than non-deposition, from isopach mapping_ and a study of well cores. Unit Five (Unit Six) in southern Michigan has been described by Nurmi as a red shale. The red color was attributed to hematite. Oolites were reported in Mason and Allegan Counties. Nurmi concluded that these facies represented a very shallow to intertidal depositional environ- ment. This highly oxidized environment could also be responsible for the lack of fossil preservation (Nurmi, 1972). Nurmi found anomalous 36 thickening and thinning in this unit closely corresponding to Unit Five, and also attributed this to erosion. It is interesting to note how closely these two authors have correlated these units independently of each other. Lower Silurian The Lower Silurian Cataract Group is divided into the Manitoulin and cabot Head formations. The "Clinton" of the Michigan Basin is a stratigraphic term carried over from the New York section and is com? monly used in the petroleum industry. It makes up the basal unit of the Niagaran Series. Potter (1975) studied the Lower Silurian in detail. He char- acterized the Manitoulin as a shallow water biostromal carbonate. It grades into the overlying Cabot Head Shale. Potter demonstrated a re- ciprocal thinning and thickening of these formations due to the nature of their depositional environments. The Manitoulin tends to thicken in shallow water areas and thin in deeper water, while the Cabot Head's clastic sediments tend to fill in lows and onlap onto higher areas. Due to the gradational contact between formations the Cataract Group as a whole was mapped for this study. Potter (1975) characterized the Clinton Group as a tan to gray dolomite, split to the southwest by a thin gray dolomitic shale. The Rochester Shale is part of the Clinton and is a good marker for the base of the Niagaran. The Clinton represents a shallow sea favorable for cherty carbonate deposition with thin shale interbeds. The Rochester represents clastic materials derived from an eastern source region, possibly entering through the Chatham Sag (Potter, 1975). 37 Middle Silurian (A92 Carbonate) Mesollela et.al.(1974) have described the Niagaran Group, in- cluding the A92 Carbonate. It is characterized as a brown to grey car- bonate that is highly laminated by algal mounds in some places. Brigf ham et.al.(1971) note that the A—2 Carbonate thins over Niagaran reef complexes and reef pinnacles. Middle Devonian (Dundee Formation) Bloomer (1969) described the Dundee as a buff to brown to gray finely crystalline limestone. He also noted a breccia zone in the up- per Dundee and dolomitic trends in the central and western portions of the Michigan Basin. In southeastern Michigan the Dundee lies immediately below the glacial drift in Monroe and southern Wayne Counties (Figure 12). Great variability in Dundee thicknesses encountered in state drilling records is due to difficulty in picking the Dundee-Detroit River contact. 38 OlAC!“ SUKIO' Figure 12. Dundee Isopach of Southeastern Michigan and Southwestern Ontario.(from Brigham, 1971) MAP INTERPRETATION General Thirteen iSOpach maps and three structure contour maps were constructed during the course of this study. The complete sequence of Glenwood through Cataract Group and Clinton were iSOpached, plus the Ar2 Carbonate and Dundee formation. The top of the Trenton, A92 Carbonate, and Dundee formations served as datums for structure cone tour maps. The Middle Ordovician through Lower Silurian units are the main emphasis of this study, with the Ar2 Carbonate serving as an "intermediate" depth formation and the Dundee serving as a "shal- low" formation for structural mapping. Maps of Michigan's southeast quadrant were constructed using a scale of one inch equals two miles. This allowed structural and stratigraphic features to be shown in great detail where there is good well control. Tops for the various units were picked, using Lilienthal (1978) as the major reference. The major structural and stratigraphic features of the region and of this area of the basin have been recognized for many years and were described in previous sections. It is the point of this study to examine the specific stratigraphic and structural characters of the southeast quadrant and relate them directly to the stratigraphy, struc- ture, and tectonics of the surrounding region. 39 40 Glenwood Isopach (Plate 1) The Glenwood of this area ranges from five to 28 feet thick. It is thickest in southern Lenawee County. It thins slightly to the east in.Mbnroe County and thins greatly to the north in washtenaw and wayne Counties. As the Glenwood was deposited over the Post-Knox Unconformity surface, one would expect the thickness to reflect an irregular, eroded topography. This would explain the anomalous thickening_and thinning that does not show up in any of the following maps with one notable exception. An area of thinning in 48 - 22 and 3E also appears in several other maps and will be analyzed later. Thickening due to fault movement is not readily apparent in this map. This may in part be due to sparse well control, but evi- dance from later maps and cross-sections suggests that faults were not active during this time. Black River Isopach (Plate 2) The Black River formation of this area shows a regional thick- ness of 300 to 480 feet. An anomalously thick area of 535 feet may be seen in T28, R73 and will be discussed later. The formation is thinnest in Jackson County and western Washtenaw and Lenawee Counties. It thickens greatly to the northeast toward Lake Huron. There is no indication of the presence of the Findlay Arch during Black River time. 1 While it is impossible to state whether there was basin closure at this time due to the small area actually mapped, the Black River contours nonetheless suggest an open sea to the east. 41 Two areas of anomalous thinning may be seen in Monroe County. This type of thinning may be explained in two ways. It may represent erosion of a positive area, or it may be due to a lesser rate of sub- sidence of the area durinqueposition. Brown (1980, personal communi- cation) states that the Trenton-Black River contact viewed in cores ex- tracted by Total Petroleum Inc. "suggest" the possibility of an uncon- formity in southeastern Michigan. On the other hand, if the Precambrian basement is fractured and faulted as prOposed by Fisher (1969) and others, the differential subsidence could be explained by basement blocks sub- siding at varying rates. The anomalously thick section centers around the Rovsek-Jorgensen #1 well (Sec. 26, T28, R7E). Well control demonstrates that the thick- ening occurs very abruptly, suggesting a graben. This trend of anoma- lous, abrupt thickening shows up in numerous other isopach maps of the area. Figure 13 shows a north-south cross-section and Figure 14 shows an east-west cross-section across the "Washtenaw Graben." These cross- sections reveal anomalous thickening in the Black River, Trenton, and Cincinnatian Units 3 and 5. The Utica and Cincinnatian Units 1, 2, and 4 do not show this thickening. Thus it would appear that the periods of anomalous thickening represent periods of differential subsidence rather than steep dips off surrounding structures. The subsidence could be caused by basement blocks sinking at different rates. 3 Well control in the Trenton suggests that the graben trends NW - SE, parallel to Trenton production in the Northville field. The exact length of the graben cannot be determined from this same data, as there is not enough well controlzflong its strike to determine end points. Hashtonsu Co. Inset-lists“ n at Soc. 21 m m ‘ '“" ~ twat-Jew 01 ¢-—Llflll———-> c°""‘°"'"'""9" '1¢——9—“—o Ibmt-Enw '1 42 lssntsusu c. “"""“0' CO- Mucous» Soc. 2572:mm 12 725 :7: (state record) Sec. 3 m 117: cucrmrm III? 5 . . “'Ir , mm “KIM!” I." 5 I." ‘ am a Figure 13. North-South Cross-section across "Washtenaw Graben." Hunts“. Co. 16 In“ Washtenaw Co. Wayne 43 Sun-Nixon v1 4——_> Rovsek-Jorgensen 01(———__)20 3:11.. Motor Co. Sec. CATARACT CINCINNATIAN UNIT 5 ufl5h UNIT 3 BLACK RIVER Sec. 33 715 R55 Sec. 25 T25 R7E WEST r - l Figure 14. East-West Cross-section across "Washtenaw Graben. 44 Its measured width on the Black River map is approximately five miles, Near the Jorgensen well are two old wells drilled in 1937 that may be useful in defining the fault system of the graben. Both report shows of oil and gas that may be related to fracture-fault systems. The Ypsilanti Development Co. - Voorhees #1 (Sec. 32, T28, R7E) is located west of the Jorgensen well, and Darke Bros. - Truesdell #1 (Sec. 25, T28, R8E) is located east of the Jorgensen well. While a single fault could have been proposed between these two wells, the writer believes that two faults running parallel to the Northville trend would more readily explain the strike of the graben. Trenton Isopach (Plate 3) The Trenton formation of this area shows a regional thickness of 270 to 440 feet. As a general rule the formation in this area is thinnest in the south and thickens northward. Anomalous thickening of 535eret occurs again in the Jorgensen well located in the Washtenaw Graben. Anomalous thickening may also be seen along the Northville trend and in T18, RlE of Jackson County. The Jackson County area is currently being developed by Total, and was a "tight hole" during the summer of 1980. Two discoveries were made in this area - the Total - Faist et.al.#l - 7 (Sec. 7, T13, RlE) and the total - Faist et.al.#2 - 7 (Sec. 7, TlS, RlE). Isopach contours in this area also show great thickening, suggesting fault-related traps for pe- troleum. This would seem to make the Jorgensen well area a most interest- ing site for future petroleum exploration. One area of anomalous thinning is evident on this map. This is located at T45, R2E and 3E, directly above an area of thinning in the 45 Glenwood and below an area of thinning in the Cincinnatian Unit 5 Isopach. While Trenton erosion could be proposed as the cause 9f this (Rooney, 1966), the presence of "thins" in the same location in three unrelated maps would again appear to be related to differ- ential subsidence of basement blocks. The anomalous thickening and thinning along the Northville Trend appears in nearly all the remaining isopach maps, and will be discussed with the Trenton structure map interpretation. Seyler (1979) demonstrated that basin closure occurred during Trenton time, with a depocenter in southern Lake Huron. With the ex- ception of the Washtenaw Graben, there is no abrupt thickening off any structure. This pattern of gradual regional thickening lends support to Green's (1957) statement that the structural elements surrounding. this area of the basin were stable with respect to basin subsidence, rather than rising. Utica Isopach (Plate 4) The Utica formation of this area shows a regional thickness of 200 to 410 feet. With few exceptions, the anomalous thickening and thin- ning of this unit appear directly related to structures that have been mapped using the Trenton top as the structural datum (Plate 14). Anomalous thinning and thickening coincides with the Northville Trend of Washtenaw and Wayne Counties. However, the most spectacular thickening and thinning may be seen along the structural trend previ- ously identified as the Lucas - Monroe Monocline and northwest exten- sion. The Lucas - Monroe Monocline runs north-south along the Lenawee and Monroe County borders. It is in direct alignment with the 46 Bowling Green fault systems shown by Green (1957). However, there has .been much debate whether the Lucas - Monroe Monocline reflects an ex- tension of the Bowling Green fault or is merely a flexure dipping, steeply to the west. The Utica Isopach map (Plate 4) shows the Utica thickening. abruptly on the west side of the structure, particularly near the Michi- gan - Ohio border. This alone does not prove the existence of a fault, and could be explained by a monoclinal flexure. However, two areas of anomalous thinning along the northwest extension are not as easily ex- plained by this method. This thinning is probably not due to erosion, as the Utica - Cincinnatian contact is considered conformable. The al- ternative explanation of this thinningwould be a slower rate of subsi- dence of these areas during deposition, possibly related to varying‘ rates of basement block subsidence. The Washtenaw Graben area shows a normal, regional thickness at this time and indicates a period of quiescence. However, the Jackson County area of T18 - RlE again shows anomalous thickening that is prob- ably related to fault movements. Cincinnatian Series Unit One Isopach (Plate 5). This map shows a regional thickness of 60 to 160 feet. Contours along the Northville Trend suggest slight movement at this time, although no anomalous thickening or thinning is present. .Anomalous thickening is present along the Lucas - Monroe Mono- cline. However, unlike Utica time when the thickening occurred abruptly to the west of this structure, the thickening now is seen abruptly to the east. This becomes very clear in an eastdwest cross-section across 47 the area (Figure 15). It now becomes very difficult to account for these changes in sedimentation patterns using a flexure or monocline. An al- ternative explanation would seem to be needed. The answer can probably be found in the Trenton structure map (Plate 14). This map reveals a strong offset in the contour lines along the Lenawee - Monroe County border, suggesting fault movement. The question then would seem to be whether this lateral offset in the con- tour lines is due to shearing and/or vertical offset. It has already been shown that the greatest thickness in the Utica occurred on the west side of the Lucas - Monroe Fault. This thickening then diminished northward along the fault until a normal regional thick- ness can be seen in Washtenaw County. Figure 15 shows the Trenton - Black River has a normal regional thickness in this area. Therefore it would appear that the movement occurred in the underlying strata, probably in the Precambrian basement complex. Figure 16 shows a diagrammatic structural cross-section across the Lucas - Monroe Fault. A small area of the Trenton structure map is shown below this diagram for reference. Note that offset in the contour lines can be explained partly by vertical fault movement in which the western side sinks and slopes southward toward Ohio. The apparent move- ment then becomes left-lateral. This can be easily demonstrated by marking parallel contour lines on a sheet of paper and making a cut per- pendicular or nearly so to the contours. Then, holding the paper with your hands on each side of the cut or "fault," lower the left or "west- ern" side of the paper while holding the right side steady. When viewed straight on, the contours will show a left-lateral offset. Len-Hes Co. Lenawee Co. Occidenul-Vlllu H <5——————————> Occidental-Schumcher ll \ [2 I! [as g 0 ' _'_”"_._) "Mum—mum“ “ ‘ Sec. 16 TBS It)! See. 1-35 I6! Munroe Co. Mourns Co. 10 9“" 9 uubuunm ll a "Calla—Sm” u .1 ll ( k “U" 6 I75 charmer ILACI llVll ILACI llVll TIDWOII WEST ,3 ..- U EAST Figure 15. East-West Cross Section across Lucas — Monroe Monocline 49 NW Ex Structural Cross-Soctlan across Lucas-Monroe Fault (highly diagrammatic) DTrootoo Fm. h t r o N Trenton Structure MOD ‘— Iowllng Gross Fault D U OHIO Figure 16. Diagrammatic Structural Cross-section across Lucas - Monroe Fault 50 Figure 15 also demonstrates structural reversal, with great sub— sidence to the west of the fault during Utica deposition, and subsidence to the east of the fault during deposition of Cincinnatian Units One and Two. This is clearly illustrated in Figure 17, with the movement occur- ring in the Precambrian complex. (It should be noted that no wells have been drilled to the Precambrian in this area. Therefore vertical offset in the Precambrian has not been proven). Since greater total subsidence occurred on the west side of the fault, the western block is considered downthrown. The Washtenaw Graben area again shows a normal regional thick- ness, again indicating quiescence here. The Jackson County area also shows a normal regional thickness. Unit Two Isopach (Plate 6). This map shows a regional thickness of 50 to 150 feet and is nearly identical to the Unit One Isopach. Mi- nor variations are found in the areas of Jackson County, the Washtenaw Graben, Northville, and southeastern Wayne County. Anomalous thickening may be seen in the Jackson County and Wash- tenaw Graben areas, and probably represent fault-related subsidence as discussed previously. Anomalous thinning occurs over the Northville Anticline, and probably represents thinning due to non-deposition as a result of slower subsidence than the surrounding basin rather than erosion or uplift. Unit Three Isopach (Plate 7). This map shows a regional thick— ness of 60 to 120 feet. Anomalous thickening occurs in the Jackson Coun- ty and Washtenaw Graben areas in a fashion similar to the Unit Two Iso- pach. Anomalous thinning occurs over the Northville area, also as dis- cussed in the Unit Two map.. The outstanding feature of this map is the 51 \. \ Lmnm-Nknnn Hunt lenqum. \ ,2 . I \~ I - Ts \ I / ~ ' 1" ’ , ‘I \ 400\ ' ' Utica Time Lanna. Ce. C’CI'V‘J ’ \ \ ‘ "' ‘l I ’ I ’x i" ‘ liilhuumflwhn NVV Emmnflon-a‘ \ l Una- -Nhnnurfinut LomnuulCo. / T/I“ \ and ‘ .g . . / .JL 1' / 1' 1 Nhnnano Cincinnatian Time \ ‘ / / \ “ ‘ \///‘ I L\. \ Figure 17. Structural Reversal across the Lucas - Monroe Fault 52 normal regional thickness displayed over the Lucas - Monroe Fault, indi- cating a period of quiescence for this feature. Unit Four Isopach (Plate 8). This map shows a regional thickness of 60 to 90feet. The Washtenaw Graben and Jackson County areas show a normal regional thickness, indicating quiescence in these areas. Con- tours over the Northville Trend apparently show some minor movement but no unusual thickening or thinning is evident. The trace of the Lucas - Monroe Fault and northwest extension are evident, with a minor increase in thickness of 20 feet on the east side of the fault indicating slight subsidence. Unit Five Isopach (Plate 9). This map shows a regional thickness of 10 to 80 feet. It shows a regional thinning from west to east, or, more generally, from basin center to basin margin. This could possibly be attributed to the basin simply "filling up" with sediment toward the basin margin. The area of the Washtenaw Graben is again anomalously thick, probably due to further vertical fault movements. The Jackson County area shows a normal thickness and represents quiescence in this area. The Northville Trend again shows some apparent minor movement, but no unusual thickening or thinning. The Lucas - Monroe Fault is not evident at this time and indicates quiescence. The northwest extension of the 'fault may have exerted slight control at this time, as the SO and 60 (foot contours in this area nose considerably over this feature. One area shows slight anomalous thinning in T48, RBE. The thin- ning is only about ten feet, but it is of interest because it is direct- ly over areas of thinning in the Glenwood and Trenton, suggesting a base- ment block showing sporadic variation in subsidence rates compared to 53 the rest of the basin. Cataract Isopach (Plate 10). The Cataract Isopach represents the combined Manitoulin Carbon- ate and overlying Cabot Head Shale. Potter (1975) demonstrated recipro- cal thickening and thinning in these formations, so interpretation of the Cataract as a whole requires some degree of caution. The map shows a regional thickness of 80 to 130 feet. Contours show thickening on the east side of the Lucas - Monroe Fault. This could possibly indicate subsidence of the eastern block. However, the thick- ening also corresponds roughly to the outline of the Ohio - Indiana Plat- form described by Potter (1975). He stated that this platform apparently represents an extension of the Cincinnatian and Findlay Arches that did not subside as fast as the surrounding basin. If so, this area would have been quite shallow and thus favor growth of carbonate producing or- ganismm such as algae. This would allow the Manitoulin to build up thicker in this area, as Shaw (1975) demonstrated Niagaran reefs building up in shallow areas that were influenced by structure. Subdividing the Cataract into the Manitoulin and Cabot Head formations would be needed to prove this. The Northville Anticline shows approximately 20 feet of thinning over this structure. The suspicion would be for the Manitoulin to thicken over the structure (shallow environment) while the cabot Head thins, but this would again require studying these individual formations. The Jackson County area shows a normal regional thickness. How- ever, the Washtenaw Graben area shows a subtle thickening to the north- west toward Livingston County. This suggests a continuation of this 54 structure into Livingston County, with the northwest end sinking_ slightly while the southeastern end remains relatively constant. This will be further developed in the conclusion of this thesis. An area of anomalous thickening occurs in the Peake—Anglemeyre #1 well of Washtenaw County, Sec. 34, T48, R4E. Approximately 2,000 feet southeast of this well is the Peake-Bohnenstiehl #1 well, located in the same section. When a structural cross-section was constructed (Figure 18), the result showed that the anomalous thickening and struc- tural offset could be explained by placing a near vertical fault be- tween these wells. The Pre-Clinton formations of the Anglemeyre well show similar, though more subtle increases in thickness. Fisher (1980, personal communication) suggests that this period of normal faulting probably represents a growth fault. However, during Clinton time the faulting shows a reversal. This may tie in.with the structural reversal shown previously across the Lucas - Monroe Fault, suggesting a change in direction of the widespread regional forces that caused shearing movement along the pre-existing planes of weakness in the Precambrian basement. It is interesting to note that these wells fall directly on the northwest extension of the Lucas - Monroe Fault. Clinton Isopach (Plate 11). The regional thickness of the Clinton varies from 10 to 30 feet. It thins slightly in the general area of the Ohio - Indiana Platform, and the 15 foot contour line along the Lucas - Monroe Fault and northwest ex- tension shows slight movement during this time. As the Clinton contains considerable carbonate, the buildup in the Northville area may be due to a favorable shallow environment for EAST WEST 55 msnrsmw coum zooo' WASHTENAW couu'rv PEAKE‘ANGLEMEYRE I < % PEAKE'BOHNENSTIEL I Soc. 34 T45 R4E T , Soc 34 T45 R45 0 0 5 2 DATUM ITOO' BELOW 0 0 0 3 J. KV NIAGARAN I CLINTON CATARACT D CINCINNATIAN E UTICA E TRENTON Figure 18. Structural Cross-Section Between Two Nearby Washtenaw Co. Wells 56 carbonate producing organisms. A sample study would be a useful tool 'for explaining thickness variation and possible facies changes in the Clinton. A-2 Carbonate Isopach (Plate 12) The A92 Carbonate shows regional thicknesses varying from 60 to 170 feet thick. It makes up part of the Niagaran reef complex in south- eastern Michigan on the St. Clair Platform (Ohio - Indiana Platform). The reef complex consists of a massive reef, and pinnacle reefs as shown by Autra (1977). He further stated that A92 Carbonate thinning occurred over massive and pinnacle reefs. Thus it would appear that the regional southern thinning in this area is directly related to the massive reef of the St. Clair Platform, while sporadic isolated areas of thinning oc- our over pinnacles. An anomalously thick section may be seen on the southwest side of the Northville production trend. There are several ways to explain this. Mesolella et. al. (1974) have shown that the Ar2 Carbonate thickens in front of the massive reef complex. Autra (1977) also speculates that this could have been a downthrown area due to fault movement prior to A92 Carbonate deposition. Thus the anomalous thickness could merely be the result of channel way filling. It is interesting to note on this map that the major structural ‘feature of previous maps, the Lucas - Monroe Fault, is masked or perhaps hidden completely. However, the Northville Anticline finally exhibits a clear structural picture, with the southwest side of the fault conclur sively downthrown. Previous maps suggested an anticline and fault trace, but contouring still left much to the imagination. 57 Dundee Isopach (Plate 13) The Dundee varies in thickness from 0 to 100 feet. Truncation occurs in Monroe County due to Pleistocene glaciation. It is interest- ing to note how closely the truncation alongthe Lenawee - Monroe County border follows the Lucas - Monroe Fault. The upthrown eastern side was planed off by glacial activity, while the downthrown western side re- tains much of its regional thickness. Thickness appears to have been greatest in southern Michigan over the St. Clair Platform. The Northville Anticline and fault are not as well defined on this map as on the A92 Carbonate. This is probably due to a cOmbina- tion relative quiescence during this time and poor well control, as many state records seem to indicate difficulty in picking the top of the underlying Detroit River Group. Trenton Structure Map (Plate 14) The Trenton structure map clearly defines the strike of the Lucas - Monroe Fault and northwest extension as discussed earlier. Con- tours along the strike of the fault show considerable left-lateral off- set that can be explained through vertical fault movement related to basement shearing. Contours along the northwest extension appear to re- flect several narrow aligned anticlines. This becomes more apparent in the Utica Isopach, which appears to show a direct relationship to the Trenton structure map. The Northville Anticline is sometimes referred to as a southern extension of the Howell Anticline. However, the Northville Anticline is apparently but one of a series of narrow aligned anticlinal structures that make up the Howell Anticline system (Ells, 1962). A close-up of 58 the Northville system is shown in Figure 19. Gas is produced from relatively high on structure, while oil is generally produced in structural lows. Isopach mapping reveals the southwest side to be downthrown, indicating a fault with vertical displacement up to 1,000 feet (Newcombe, 1933). The structure of this anticlinal system is reflected in all the isopach maps constructed for this study. The anticlinal’structures have two apparent explanations that may be inter-related. The structures probably reflect differentially subsiding basement blocks as the result of basement shearing. If so, the resultant fracturing and brecciation along fault and structure planes could serve as pathways for fluid migration. These fluids could then cause dissolution and dolomitization as pointed out by Landes (1946) and others, creating collapse around the blocks and producing anticlinal structures. However, it is unlikely that such dissolution could create features of the magnitude displayed in all the maps constructed for this study (Fisher, 1980, personal communication). A—2 Carbonate Structure Map (Plate 15). The Ar2 Carbonate map shows a close similarity to the Trenton structure map. However, the Northville and Lucas - Monroe Fault are not as sharply defined due to the thicknesses of the underlying sediments. Dundee Structure Map (Plate 16). The Dundee structure map shows strong similarities to the pre- ceding structure maps. The Lucas - Monroe Fault is clearly defined by Dundee erosion, with the Dundee of the upthrown east side having been planed off by glaciation as discussed earlier. The Northville and north- west extension are considerably masked by thicknesses of underlying. sediments. This is particularly true of the Salina units, when the 59 e « 7 00 \ X; {Flt \C’SNZ: \\9i§i \’°°* K RTE Woolltoaaw Ca. ROE Wayne Co. 0 Oil Well § Gas Well ¢ Dry Hole Figure 19. Aligned Anticlinal Structures in the Northville System 60 major sinking of the Michigan Basin occurred (Fisher, 1969). PETROLEUM OCCURRENCE It appears that the most likely places for petroleum produc- tion in this area of the Michigan Basin would be: (1) porous erosional remnants underlyingimpermeable seals; (2) wedge outs along the basin margin; (3) wedge outs around Silurian reef structures, and (4) porosity traps associated with faulted structures. Cases one and two are related to truncated Cambrian and Lower Ordovician formations and the Post-Knox Unconformity, as pointed out by Syrjamaki (1977). The Glenwood could serve as an impermeable cap- rock. A Trenton unconformity has been suggested by Rooney (1966) and others, with the Utica Shale serving as an effective caprock. However, (Newharn (1976) and others have suggested that patterns of dolomitiza- tion and hydrocarbon accumulation are more closely related to faulting and fracturing in the Trenton - Black River. Case three has been described by Autra (1977) and many others. Case four is considered to be the key to future Trenton - Black River discoveries, as shown in the Albion-Scipio and Northville fields. There are numerous apparently faulted areas in this area of the basin that remain unexplored or apparently forgotten. The Deerfield, Summerfield, and Macon Creek fields lie directly along the trace of the Lucas - Monroe Fault and northwest extension. Few of these wells have penetrated deeper than the top of the Trenton, yet current exploration in these areas appears to be at a standstill. 61 62 Total Petroleum has made several discoveries in Jackson County, TlS, RlE and T18, RlW during 1079-80. This area was kept "tight" by the company for as long as possible with Total employees showing. "restrained" optimism for future development. The deep sections shown by the Rovsek - Jorgensen #1 well of Washtenaw County display remark— able similarity to the Jackson areas in the isopach maps, suggesting. similar fault related petroleum traps in Washtenaw County. SUMMARY AND CONCLUSIONS Brigham (1971) and Hinze et. a1. (1975) have constructed struc- ture maps of the Precambrian surface. It is granted that these maps have sparse well control in most areas. Nonetheless, the maps were con- structed with most data based on gravity and magnetic surveys. The re- sulting regional Precambrian structure map_(Figure 5) bears a strik- ing resemblance to the regional Trenton structure map (Figure 11) con- structed by Fisher (1972). The Trenton isopach and remaining post- Trenton maps all showed an apparent direct relationship to the struc- tures shown in the Trenton structure map. Syrjamaki (1977) constructed regional structure contour maps on the Middle Ordovician Glenwood meme ber, Lower Ordovician Prairie du Chien Group, and Late Cambrian Trem- pealeau formation, and these maps again mirrored the Precambrian and Trenton structure maps. Thus it would appear that Precambrian basement structure has played a major role in shaping the developmental history of the Michigan Basin. Fisher (1969), Hinze and Merritt (1969), Prouty (1970), and many others have concluded that the Precambrian basement is highly faulted. These faults apparently extend up through the overlying sediments as growth faults, as shown in the Peake-Anglemeyre #1 well (Figure 18). The faults probably formed during the Precambrian as the result of the Penokean Orogeny and Keweenawan Disturbance (Hinze et. al., 1975). Hinze et. a1. (1969, 1975) have prOposed that a rift zone was created during 63 64 the Keweenawan Disturbance. This aborted rift zone is then visible as the "Mid-Michigan Gravity High" seen in the Bouguer gravity anomaly map (Figure 8). The McClure - Sparks #1 and Mobil - Messmore #1 were deep tests drilled within the area of the midéMichigan gravity high. No basalt was encountered as would be predicted. However, extra thick sections were encountered in the McClure - Sparks well where approximately 5,000 feet of probably Precambrian redbeds (Fisher, 1979) were encoun- tered that could have been derived from erosion of a granite source re- gion (Gregg, 1979) and deposited in the failed rift valley. The Rovsek - Jorgensen #1 well was also drilled into the mid- Michigan gravity high (Figure 20). This well stopped in the Prairie du Chien. However, unusually thick sections were also encountered in this well. The Cataract Isopach (Plate 10) suggests subsidence was appar- ently slowing in the Jorgensen.we11 during the Early Silurian. Thus the "Washtenaw Graben" that is visible in the isOpach maps of this study 4 appears to be an extension of the proposed rift zone. The Jorgensen well probably represents an area nearingthe end of the failed rift valley. Thus it appears that the deep sections of the Rovsek - Jorgensen well and the structural reversal of the Lucas - Manroe Fault present strong evidence for vertical fault movement within the basin. The Pre- Clinton growth faulting and later reverse faulting of the Peake-Anglemeyre well suggests that the forces responsible for creating the structural re- versal of the Lucas - Monroe Fault progressed slowly up the fault, reach- ing the Anglemeyre well by Clinton time. The reversal itself is probably due to a shift in direction of the regional forces that created basement shearing along the pre-existing planes of weakness in the Precambrian basement. - we l 0.. O000.... ......O...‘.... O. I .. I . O......O .....O... ...... .... ......OOOOOO‘.... ... ....... "nun” ....O .0 .0...00.0.00...0. .0... ...... hs‘h“R3 do:sundown—ohIso;weooauauon.3one»: x 66 Paris (1977) and other workers have directly related Appalach- ian tectonics to the evolution of the Michigan Basin. He concluded that the development of the Howell Anticline and other fault-related folds was due to compressional forces affecting lines of weakness in the Pre- cambrian basement. However, this raises the question of whether the Michigan Basin ' is a true tectonic basin. It is centrally located on the continent quite a distance from any folded mountains. If one examines a.western tectonic basin, such as the Denver Basin, the basin structures are found around the basin margin rather than in the center of the basin. It would appear that the Michigan Basin has been affected by more generalized regional forces, perhaps from as far away as the Ouachita and Appalachian regions (Fisher, 1980, personal communication). These areas »contributed forces that were transmitted through the Precambrian basement and played a major role in shaping the evolution of the Michigan Basin. Eardley (1962) states that the Ouachita system may be a westward exten- sion of the Appalachian system. The main thrusting in the Ouachita re- gion occurred during the Late Pennsylvanian or Permian. The Appalachian region was subjected to three major orogenic events: The Taconic Oro- geny (Late Ordovician), Acadian Orogeny (Middle or Late Devonian), and Appalachian Orogeny (Pennsylvanian). Forces from these areas have un- doubtedly played a role in shaping the evolution of the Michigan Basin. However, to pin down the exact source and direction of tectonic forces that affected the Michigan Basin would appear to be a difficult task. As a result of regional tectonics, the Precambrian basement of the Michigan Basin probably has an irregular surface due to shearing activity. Some blocks move up or down in relation to one another, while 67 others may have a dominant lateral component. This in turn plays a major role in forming the structures that are visible in subsurface mapping. (Figure 21). 68 WEST A ALLEGAN EAST A. HOWELL ANTICLINE , 57- cum MONOCLINE BASEMENT STRUCTURE (highly diagrammatic) (modified from Fisher (1979)) A’ Figure 21. BIBLIOGRAPHY BIBLIOGRAPHY Autra, M. D., 1977, A Regional Study of the Niagaran and Lower Salina of the Michigan Basin: Unpublished Master's Thesis, Mich. State Univ. Balombin, M. T., 1974, The St. Peter Sandstone in Michigan: Unpublished Master's Thesis, Mich. State Univ. Beards, R. J., 1967, Guide to Subsurface Paleozoic Stratigraphy of Southern Ontario: Ontario Dept. of Energy and Resources Mgmt., Paper 67-2. ' ‘ Bloomer, A. T., 1969, A Regional Study of the Middle Devonian Dundee Dolomites in the Michigan Basin: Unpublished Master's Thesis, Mich. State Univ. ‘ Bolton, T. E., 1954, Silurian of Manitoulin Island: Mich. Basin Geol. Soc. Annual Field Trip Guide Book, 1954. Brigham, R. J., 1971, Structural Geology of Southwestern Ontario and Southeastern Michigan: Mines and Northern Affairs Petroleum Re- Sources Section, Paper 71-2. " Burgess, R. J., 1960, Oil in Trenton Synclines: Oil and Gas Jour., Burns, D. B., 1980, Personal Communication, Total Petroleum Inc., Oklahoma Dist. Buschbach, T. C., 1964, Cambrian and Ordovician Strata of Northeastern Illinois: 111. State Geol. Survey, Report of Investigation 218, 90 p. ‘ Calvert, W. L., 1974, Sub-Trenton Structure of Ohio: Amer. . Assoc. of Petrol. Geol. Bull., Vol. 58, pp. 957-972. ' Catacosinos, P. A., 1972, Cambrian Stratigraphy of the Lower Peninsula of Michigan: Unpublished Ph.D. Thesis, Mich. State Univ. , 1974, Cambrian Lithostratigraphy of the Michigan Basin: Amer. Assoc. of Petrol. Geol. Bull. Vol. 57, pp. 2404-2417. Cohee, G. V., 1947, Cambrian and Ordovician Rocks in Recent Wells in Southeastern Mishigan: Amer. Assoc. of Petrol. Geol. Bull., Vol. 31, pp. 293-307. 69 7O , 1948, Cambrian and Ordovician Rocks in Michigan Basin and Ad- joining Areas: Amer. Assoc. of Petrol. Geol. Bull., Vol. 32, pp. 1417-1448. , and K. K. Landes, 1958, Oil in the Michigan Basin, Habitat of Oil: Amer. Assoc. of Petrol. Geol. Symposium, pp. 473-493. , 1965, Geologic History of the Michigan Basin: Jour. of Wash. Academy Sciences, Vol. 55, pp. 211-223. ‘ Craddock, C., 1972, Late Precambrian, Regional Geologic Setting, in Geology of Minnesota, a Centennial Volume: Minn. Geol. Survey, Cummings, E. R., and R. R. Shrock, 1928, Niagaran Coral Reefs of Indiana and Adjacent States and Their Stratigraphic Relations: Geol. Soc. America Bull., Vol. 39, pp. 579-620. Dastanpour, M., 1977, An Investigation of the Carbonate Rocks in the Reynolds Oil Field, Montcalm County, Michigan: Unpublished Master's Thesis, Mich. State Univ. DeHaas, R. J., 1979, Petroleum Potential of the Ordovician in the Michi- gan Basin: Mich. Basin Geol. Soc. Symposium, p. 8. Eardley, A. J., 1962, Structural Geology of North America: 2nd Edition, New York, Harper and Row, 743 p. ‘ Ehlers, G. M., and R, V. Kesling, 1957, Silurian Rocks of Michigan and Their Correlations with Silurian Rocks of the Southern Lake Michi- gan Area: Mich. Basin Geol. Soc., pp. 1 - 20. , 1962, Silurian Rocks of Michigan and Their Correlation: Mich. Basin Geol. Soc., Annual Field Excursion and Guide Book, 1962. Ekblaw, G. E., 1938, Kankakee Arch in Illinois: Geol. Soc. America Bull. Vol. 49, pp. 1425-1430. Ells, G. D., 1958, Notes on the Devonian-Silurian in the subsurface of Southwest Michigan: Mich. Dept. of Conserv., Geol. Survey Div. Progress Report 18, 55 p. , 1960, Silurian Oil and Gas Developments in Michigan: Mich. Dept. of Conserv., Geol. Survey Div., 11 p. , 1962, Structures Associated with the Albion-Scipio Oil Field Trend: Mich. Dept. of Conserv., Geol. Survey Div., 86 p. , 1969, Architecture of the Michigan Basin: Mich. Basin Geol. Soc., Annual Field Excursion Guide Book, pp. 60-88. Evans, C. 8., 1950, Underground Hunting in the Silurian of Southwestern Ontario: Geol. Assoc. Canada, Proc., Vol. 3, p. 55-85. 71 Fincham, W. J., 1975, The Salina Group of the Southern Part of the Michigan Basin: Unpublished Master's Thesis, Mich. State Univ. Fisher, J. H., 1969. Early Paleozoic History of the Michigan Basin: Michigan Basin Geol. Soc. Annual Field Excursion, pp. 89-95. , 1979, Structural History of the Michigan Basin: Mich. Basin Geol. Soc. Symposium, p. 6.‘ Fowler, J. H., and W. D. Kuenzi, 1978, Keweenawan Turbidites in Michi- gan (Deep Borehole Redbeds): A Foundered Basin Sequence Developed During Evolution of a Protoceanic Rift System, Jour. Geophysical Research, Vol. 82, No. B12, pp. 5833-5843. Gardener, W. C., 1974, Middle Devonian Stratigraphy and Depositional Environment in the Michigan Basin: Mich. Basin Geol. Soc. Spec. Papers, No. 1, pp. 43-48. Green, D. A., 1957, Trenton Structure in Ohio, Indiana, and Northern Illinois: Amer. Assoc. of Petrol. Geol. Bull., Vol. 41, pp. 626- 642. Gregg, J. A., 1980, Personal Communication, Mich. State Univ. Gutstadt, A. M., 1958, Cambrian and Ordovician Stratigraphy and Oil and Gas Possibilities in Indiana: Ind. Dept. of Conserv., Geol. Survey Bull. No. 14, 103 p. Hamrick, R. J., 1978, Dolomitization Patterns in the Walker Oil Field, Kent and Ottawa Counties, Michigan: Unpublished Master's Thesis, Mich. State Univ. Harding, T. P., 1974, Petroleum Traps Associated with Wrench Faults: Amer. Assoc. of Petrol. Geol. Bull., Vol. 58, pp. 1290-1304. Hinze, W. 1., 1963, Regional Gravity and Magnetic Anomaly Maps of the Southern Peninsula of Michigan: Geol. Survey of Mich., Report of Investigation No. l. , and D. W. Merritt, 1969, Basement Rocks of the Southern Peninsula of Michigan: Mich. Basin Geol. Soc. Annual Field Excursion Guide Book, pp. 28-59. , R. L. Kellogg, and N. W. O'Hara, 1975, Geophysical Studies of Basement Geology and Southern Peninsula of Michigan: Amer. Assoc. of Petrol. Geol. Bull., Vol. 59, pp. 1562-1584. Horowitz, M. 1961, The St. Peter - Glenwood Problem in Michigan: Un- published Master's Thesis, MiCh. State Univ. Huh, J. M. 8., 1973, Geology and Diagenesis of the Salina - Niagaran Pinnacle Reefs in the Northern Shelf of the Michigan Basin: Un- published Ph.D. Thesis, Univ. of Mich., 253 pp. 72 Hussey, R. C., 1950, The Ordovician Rocks of the Escanaba-Stonington Area: Mich. Basin Geol. Soc. Annual Field Excursion Guide Book, 24 p. Hyde, M. K., 1979, A Study of the Dolomite/Calcite Ratios Relative to the Structures and Producing Zones of the Kawkawlin Oil Field, Bay County, Michigan: Unpublished Master's Thesis, Mich. State Univ. Innes, M. J. 8., A. K. Goodacre, J. R. Weber, and R. L. McConnell, 1967, Structural Implications of the Gravity Field in Hudson Bay and Vicinity: Canadian Jour. Earth Science, Vol. 4, pp. 977-993. Jackson, R. P., 1958, Dolomitization and Structural Relations of the Deep River, North Adams,and Pinconning Oil Fields, Michigan: Unpublished Master's Thesis, Mich. State Univ. Kilbourne, D. E., 1947, The Origin and Development of the Howell Anti- cline in Michigan: Unpublished Master's Thesis, Mich. State Univ. Kirkham, V. R. D., 1937, Theory of Origin of Oil and Gas Bearing Folds in Michigan and Theory of Origin of Oil and Gas: Mich. Oil and Gas News, May 15 Issue. Laaksonen, H. J., 1971, Basement Lithology in Michigan as Determined from Well Cuttings: Unpublished Master's Thesis, Mich. State Univ. Landes, K. K., 1945, The Salina and Bass Islands Rocks in the Michigan Basin: U. S. Geol. Survey Oil and Gas Inv. Prelim. Map 40. ‘ , 1946, Porosity Through Dolomitization: Amer. Assoc. of Petrol. Geol. Bull., Vol. 30, pp. 305-318. , 1951, Detroit River Group in the Michigan Basin: U. S. Ge61. Survey, Circular #133. Lilienthal, R. T., 1978, Stratigraphic Cross Sections of the Michigan Basin: Mich. Dept. of Conserv., Geol. Survey Div.' Lockett, J. R., 1947, Development of Structures in Basin Areas of North- eastern United States: Amer. Assoc. of Petrol. Geol. Bull., Vol. 31, pp. 429-446. Lowenstam, H. W., 1950, Niagaran Reefs of the Great Lakes Area: Jour. Geology, Vol. 58, pp. 430-487. Melhorn, W. N., 1958, Stratigraphic Analysis of Silurian Rocks in Michi- gan Basin: Amer. Assoc. of Petrol. Geol. Bull., Vol. 42, pp. 816- 838. Merritt, D. W., 1968, A Gravitational Investigation of the Scipio Oil Field in Hillsdale County, Michigan, with a Related Study for Oh- taining a Variable Elevation Factor: Unpublished Ph.D. Thesis, Mich. State Univ. 73 Mesollela, K. J., et. al., 1974, Cyclic Deposition of Silurian Carbonates and Evaporites in the Michigan Basin: Amer. Assoc. of Petrol. Geol. Bull., Vol. 58, pp. 34-62. Michigan Geological Survey, 1964, Stratigraphic Succession in Michigan: Mich. Geol. Survey, Chart 1. Moody, J. 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M., 1977, Developmental History of the Howell Anticline: Un- published Master's Thesis, Mich. State Univ. Pinsak, A. P., and R. H. Shaver, 1964, The Silurian Formations of Northern Indiana: Ind. Dept. of Conserv., Geol. Survey Bull. #32. Pirtle, G. W., 1932, Michigan Structural Basin and Its Relationship to Surrounding Areas: Amer. Assoc. of Petrol. Geol. Bull., Vol. 16, pp. 145-152. ' Potter, D. L., 1975, The Lower and Lower Middle Silurian of the Michigan Basin: Unpublished Master's Thesis, Mich. State Univ. ‘ Prouty, C. E., 1970, Michigan Basin-Paleozoic Evolutionary Development: G. S. A. Abstr.,Vol. 2, Part 7, pp. 657-658. , 1976, Michigan Basin - A Wrenching Deformation Mode1?: Abstr. with Prog., G. S. A. Vol. 8, No. 4, p. 505. Rooney, L. F., 1966, Evidence of Unconformity at Top of Trenton Limestone in Indiana and Adjacent States: Amer. Assoc. of Petrol. Geol. Bull., Vol. 50, pp. 533-546. 74 Sanford, B. V., and R. G. Quillian, 1959, Subsurface Stratigraphy of Upper Cambrian Rocks in Southwestern Ontario: Geol. Survey Canada, Paper 58-12. , 1961, subsurface Geology of Ordovician Rocks in Southwestern Ontario: Geol. Survey of Canada, Paper 6026, 54 p. Seyler, D. J., 1974, Middle Ordovician of the Michigan Basin: Unpub- lished Master's Thesis, Mich. State Univ. Shaver, R. H., 1974, Structural Evolution of Northern Indiana during Silurian Time: MHch. Basin Geol. Soc., Annual Field Excursion Guide Book, 1974. Shaw, B., 1975, Geology of the Albion-Scipio Trend, Southern Michigan: Unpublished Master's Thesis, Univ. of Mich., 63 pp. Shaw, R. M., 1971, Mobile Ground Magnetometer Survey of a Portion of the Southern Peninsula of Michigan: Unpublished Master's Thesis, Mich. State Univ. ' Shrock, R. R., 1959, Wisconsin Silurian Bioherms (Organic Reefs): Bull. of the Geol. Soc. of America, Vol. 50, pp. 529-562. Stelzer, W. T., 1966, A subsurface Study of the Middle Ordovician Se- quence in Ohio: Unpublished Master's Thesis, Mich. State Univ. Syrjamaki, R. M., 1977, The Prairie du Chien Group of the Michigan Basin: Unpublished Master's Thesis, Mich. State Univ. Ten Have, L. E., 1979, Relationship of Dolomite/Limestone Ratios to the Structure of the West Branch Oil Field, Ogemaw Co., Michigan: Unpublished Master's Thesis, Mich. State Univ. Tinklepaugh, B. M., 1957, A Chemical, Statistical, and Structural Anal- ysis 6f Secondary Dolomitization in the Rogers City - Dundee Forma- tion of the Central Michigan Basin: Unpublished Ph. D. Thesis, Mich. State Univ. Workman, L. E., and A. H. Bell, 1948, Deep Drilling and Deeper Oil Possibilities in Illinois: Amer. Assoc. of Petrol. Geol. Bull., Vol. 32, pp. 2041-2062. ' APPENDIX TABLE 1.. CATALOG OF WELLS USED IN THE SOUTHEAST QUADRANT OP MICHIGAN'S LOWER PENINSULA Wells are arranged alphabetically by county. Data was gath- ered from state drilling records (SDR), gamma ray logs (GRL), and samples (SMPL). FormatiOn tops were determined by a study of the data. Information includes Principal Operator, Farm Name, Permit #, Location, Elevation, and Total Depth. Formation Abbreviations DND - Dundee DTR - Detroit River CIN4 CIN3 - - Cincinnatian Unit 4 Cincinnatian Unit 3 A2C - A-Z Carbonate CIN2 -‘ Cincinnatian Unit 2 A22 - A-2 Evaporite CINl - Cincinnatian Unit 1 Alc - A-l Carbonate UTC - Utica NGR - Niagaran TRN - Trenton CLN CAT - - Clinton BLR - Black River Cataract (Cabot Head GLW - Glenwood and Manitoulin Fms.) - PDC - Prairie du Chien CINS - Cincinnatian Unit 5 TRM - Trempealeau Jackson County Operator: Total DND 2255 CINS 4152 TRN 4993 Farm: Faist et a1 #1-7 DTR 2320 CIN4 4222 BLR 5212 PN: 32714 A20 3465 CIN3 4273 GLW 5572 Sec. 7, T18, RlE AZE 3566 CIN2 4432 PDC 5585 SW-NE-NW CLN 4018 CINl 4536 E1. 957 - TD 5653 (GRL) CAT 4032 UTC 4602 Operator: Total DND 2257 CINS 4135 TRN 4928 Farm: Faist et a1 #2 -7 DTR 2328 CIN4 4205 BLR 5189 PN: (not listed) A20 3502 CIN3 4257 GLW 5543 See. 7, T18, RlE A28 3580 CIN2 4408 PDC 5556 SW-SE-NW CLN 4001 CINl 4464 El. 957 - TD 5601 (GRL) CAT 4023 UTC 4532 75 76 Jackson County (continued) Operator: Total DND 2229 CIN5 4130 TRN 4806 Farm: Hankerd #1-17 DTR 2316 CIN4 4216 BLR 5161 PN: 33028 A2C 3524 CIN3 4266 GLW 5520 Sec. 17, T18, RlE NGR 3596 CIN2 4380 PDC 5532 NE-NE-SE CLN 3991 CINl 4445 E1. 975 - TD 5590 (GRL) CAT 4011 UTC 4515 Operator: Neyer &Mi11er DND 2132 CIN5 3976 TRN 4660 Farm: Dixon #1 DTR 2218 CIN4 4064 BLR 4994 PN: 21992 A2C 3381 CIN3 4114 Sec. 26, T18, RlE NGR 3451 CIN2 4222 NE-NW-SE . CLN 3852 CINl 4296 E1. 923 - TD 5385 (GRL) CAT 3866 UTC 4368 Operator: Hammer Oil DND 1793 CIN5 3370 TRN 4073 Farm: Boone #1 DTR 1890 CIN4 3478 BLR 4411 PN: 21898 A2C 2736 CIN3 3504 GLW 4760 Sec. 26, T38, RlE NGR 2809 . CIN2 3614 PDC 4770 NW-NW-NE CLN 3256 ' CINl 3688 El. 959 - TD 4903 (GRL) CAT 3266 UTC 3760 Operator: Mobil Farm: Clark #1 PN: 29944 Sec. 4, T38, R2E DND 1934 DTR 2030 A2C 2913 NGR 2980 SE-NE-SE ' E1. 1032 - TD 3511 (GRL) Opr: American Hydrocarbons DND 1776 CIN5 3400 TRN 4106 Farm: Culbert #1 - PN: 23399 A2C 2740 Sec. 22, T38, R2E‘ C-SW-SW . CLN 3282 E1. 962 - TD 4953 (SDR) BLR 4455 GLW 4812 PDC 4814 Operator: Reed DND 1715 CIN5 3180 TRN 3887 Farm: Reed #1 PN: 21982 Sec. 7, T48, RlE SE-SW-SE CLN 3068 E1. 987 - TD 4566 (SDR) BLR 4240 PDC 4561 Operator: Cowen DND 1748 CIN5 3229 TRN 3945 Farm: Wellhoff #1 PN: 28305 " A2C 2581 Sec. 10, T48, RlE A2E 2644 C-SE-NE CLN 3122 BLR 4271 GLW 4615 PDC 4624 . E1. 996 - TD 4651 (SDR) UTC 3621 77 Jackson County (continued) Operator: Cowen DND 1733 CIN5 3228 TRN 3934 Farm: DeLand Comm. #1 PN: 28460 A2C 2560 Sec. 10, T48, RlE NE-SW-NE 3116 El. 989 - TD 4675 (SDR) UTC 3616 BLR 4261 GLW 4602 Operator: Carter DND 1773 CIN 3280 TRN 3977' Farm: Randall #1 PN: 22066 2588 Sec. 11, T48, RlE NW-NE-NW CLN 3143 E1. 1006 — TD 4693 (SDR) UTC 3475 Operator: Gordon DND 1715 TRN 3949 Farm: Dermyre et a1 #1 PN: 28848 ‘ A2C 2560 Sec. 11, T48, RlE NW-NW-SW E1. 1011 - TD 4637 (SDR) CAT 3128 UTC 3615 Operator: Cowen DND 1755 Farm: Wellhoff -#1-A PN: 28492 ' A2C 2612 Sec. 11, T48, RlE NW-SW-NW 3136 El. 1011 - TD 4718 (SDR) UTC 3636 PDC 4628 TRN 3952 BLR 4287 'GLW 4626 PDC 4630 Operator: Bayley Prod. DND 1719 CIN5 3227 TRN 3928 Farm: Hess #1 DTR 1800 CIN4 3310 BLR 4255 PN: 28705 A2C 2542 CIN3 3350 GLW 4614 Sec. 8, T48, RZE AZE 2616 CIN2 3462 PDC 4617 NW-NW-SW 3104 CINl 3537 E1. 987 - TD 4671 (GRL) CAT 3116 UTC 3609 Operator: Otterbine DND 1705 CIN5 3212 TRN 3908 Farm: Baylis #1 PN: 22017 A2C 2582 Sec. 9, T48, R2E SE-SE-NE 3093 E1. 964 - TD 4685 (SDR) UTC 3591 BLR 4257 GLW 4602 PDC 4607 Operator: Taggart DND 1695 CIN5 3195 TRN 3884 Farm: Watkins Farms #1 PN: 19444 Sec. 13, T48, R2E SE-SW-SE CLN 3065 E1. 1012 - TD 4700 (SDR) GLW 4570 PDC 4576 78 Jackson County (continued) Operator: Ohio Oil DND 1700 CIN5 3196 TRN 3891 Farm: Watkins Farms #1 DTR 1790 CIN4 3266 BLR 4250 PN: 23656 Sec. 24, T48, R2E A20 2576 A2E 2644 CIN3 3310 GLW 4592 CIN2 3425 PDC 4597 SW-SW-NE 'CLN 3069 CIN1 3500 El. 1051 - TD 4650 (GRL) CAT 3078 UTC 3571 Lenawee County Operator: McClure DND 1666 CIN5 2984 3702 Farm: Antczk & Sawyer #1 DTR 1756 CIN4 3066 PN: 22010 : . A2C 2399 CIN3 3126 BLR 4050 GLW 4350 Sec. 18, T58, RlE AlC 2480 CIN2 3244 PDC 4363 SW-NW-NE CLN 2884 CIN1 3294 E1. 1092 - TD 4427 (GRL) CAT 2894 UTC 3366 Operator: Bell 5 Gault DND 1604 CIN5 2929 TRN 3652 Farm: Wheaton #1 PN: 22781 A20 2317 Sec. 21, T58, RlE SE-SE-NW CLN 2828 E1. 1091 - TD 4420 (SDR) GLW‘ 4316 PDC 4321 Operator: Bell & Gault DND 1538 CIN5 2832' 3552 Farm: Kisner #1 ' DTR 1623 CIN4 2926 BLR 3892 PN: 22044 A2C 2258 CIN3 2992 Sec. 33, T58, RlE AlC 2316 CIN2 3083 NW-SW-NE CLN 2726 CIN1 3132 E1. 1080 - TD 4165 (GRL) CAT 2737 UTC 3208 Operator: Farmers Oil DND 1555 CIN5 2964 3680 Farm: Myers Estate #1 CIN4 3045 BLR 4039 PN: 23277 A2C 2355 CIN3 3102 GLW 4355 Sec. 5, T58, R2E CIN2 3224 PDC 4370 SW-NE-SW CLN 2854 CIN1 3267 E1. 1006 - TD 4406 (GRL) CAT 2865 UTC 3343 ‘Operator: St. Louis Pipe DND 1412 TRN 3540 Farm: Dibble #1 PN: 3452 Sec. 16, T58,R3E SW-NW-SW 2715 E1. 968 - TD 3645 (SDR) CAT 2723 79 Lenawee County (continued) Operator: Reef Petrol. CIN5 2641 TRN 3340 Farm: Valkenburg #1-25 DTR 1394 PN: 31972 AZC 2013 Sec. 25, T58, R3E SE-SE-NE 2527 E1. 890 - TD 4124 (SDR) UTC 3000 BLR 3704 GLW 4052 PDC 4067 Operator: Cambridge Oil DND 818 CIN5 2436 TRN 3103 Farm: Service #1 DTR 913 CIN4 2526 BLR 3464 PN: 28868 AZC 1842 CIN3 2590 GLW 3804 Sec. 2, T58, R4E NGR 1916 CIN2 2691 PDC 3818 C-SW-SE 2323 CIN1 2734 E1. 895 - TD 4000 (GRL) CAT 2334 UTC 2817 Operator: Voorhees DND 1115 TRN 3269 Farm: Cove #1 PN: 7598 See. 8, T58, R4E NE-SW-SW E1. 834 - TD 4060 (SDR) Operator: McClure DND 932 CIN5 2456 TRN 3149 Farm: Allen #1 1049 CIN4 2520 BLR 3532 PN: 22886 AZC 1859 CIN3 2575 GLW3909 Sec. 14, T58, R4E NGR 1931 CIN2 2690 PDC 3928 NE-NW-SW E1. 872 - TD 4046 (GRL) 2342 2354 CIN1 2735 UTC 2814 Operator: Good &Good DND 344 CIN5 2067 Farm: DeLodder #GG-l PN:24304 DTR 463 A2C 1495 CIN4 2115 CIN3 2161 Sec. 3, T58, RSE AlC .1540. CIN2 2265 SE-SE-SW CLN 1935 CIN1 2304 E1. 760 - TD 3555 (GRL) CAT 1953 UTC 2381 2707 BLR 3091 GLW 3464 PDC 3478 Operator: Gulf DND 386 CIN5 1793 TRN 2650 Farm: Gordon #1-9 DTR 496 CIN4 2046 BLR 3032 PN: 31792 A2C 1433 CIN3 2096 GLW 3424 Sec. 9, T58, RSE AlC 1482 CIN2 2203 PDC 3440 SE-SE 1877 CIN1 2240 E1. 777 - TD 3800 (GRL) CAT 1894 UTC 2322 Operator: Michigan 011 DND 110 CIN5 1880 TRN 2545 Farm: Craig #1 PN: 19333 Sec. 13, T58, R58 DTR 212 A2C 1290 NW-SE-SE 1751 E1. 710 - TD 2683 (SDR) CAT 1766 80 Lenawee County (continued) Operator: Gulf DND 250 CIN5 1956 TRN 2620 Farm: Gilmore #1 - 15 DTR 360 CIN4 2010 BLR 3001 PN: 31919 A2C 1400 CIN3 2060 GLW 3393 Sec. 15, T58, RSE A1C 1450 CIN2 2168 PDC 3411 SE-SW-NW CLN 1842 CIN1 2209 E1. 760 - TD 3798 (GRL) CAT 1856 UTC 2298 Operator: McClure DND 583 CIN5 2156 TRN 2820 Farm: Earhart #1 PN: 22517 Sec. 17, T58, RSE DTR 669 A2C 1580 NE-NE-SW 2040 E1. 798 - TD 3645 (GRL) BLR 3190 GLW 3583 Operator: McClure DND 163 CIN5 1851 TRN 2517 Farm: Preston #1 270 CIN4 1904 BLR 2878 PN: 22834 A2C 1294 CIN3 1960 GLW 3261 Sec. 23, T58, R5E AlC 1344 CIN2 2060 PDC 3278 SE-NW-SE E1. 721 - TD 3305 (GRL) CAT 1734 1748 CIN1 2105 UTC 2181 Operator: McClure DND 180 CIN5 1880 TRN 2496 Farm: Smitka #1 DTR 287 CIN4 1934 PN: 23315 AZC 1312 CIN3 1990 Sec. 23, T58, RSE AlC 1360 CIN2 2089 SE-SE-SW 1751 CIN1 2136 E1. 711 - TD 2685 (GRL) CAT 1762 UTC 2208 Operator: Socony Oil DND 110 CIN5 .1755 TRN 2418 Farm: Russell #1 PN: 3600 Sec. 25, T58, RSE C-S—S 1645 E1. 699 - TD 2576 (SDR) Operator: Good &Good DND 184 CIN5 1857 2525 Farm: Preston #2 DTR 290 ‘CIN4 1910 BLR 2898 PN: 24645 A2C 1306 CIN3 1960 GLW 3293 Sec. 25, T58,'R5E AlC 1350 CIN2 2080 PDC 3306 SE-NW-SW 1740 CIN1_ 2124 E1. 710 - TD 3400 (GRL) CAT 1754 UTC 2196 Operator: Bernardt Oil DND 160 CIN5 1876 Farm: Steele #1 PN: 25641 Sec. 26, T58, RSE DTR 270 AZC 1297 NE-NW-NE 1755 E1. 710 - TD 3032 (SDR) TRN 2567 BLR 2898 81 Lenawee County (continued) Operator: Socony Oil DND 110 CIN5 1910 TRN 2445 Farm: Downing Estate #1 PN: 3353 1 Sec. 36, T58, R5E NE-NE-SW E1. 698 - TD 3437 (SDR) Operator: Socony Oil DND 106 CIN5 1889 TRN 2445 Farm: McCarbery #1 PN: 2759 Sec. 36, T58, RSE NW-NE-NW E1. 694 - TD 2552 (SDR) Operator: Trolz DND 1272 CIN5 2520 Farm: Hawkins et a1 #1 DTR 1367 CIN4 2593 PN: 23838 A2C 1957 CIN3 2653 Sec. 20, T68, RlE NGR 2036 CIN2 2770 SE-NW-SE 2414 CIN1 2820 E1. 979 - TD 3962 (GRL) CAT 2427 UTC 2900 3257 BLR 3576 GLW 3886 PDC 3902 Operator: Anderson Oil DND 1320 CIN5 2640 3367 Farm: Brooks et a1 #1 DTR 1408 CIN4 2714 BLR 3706 PN: 28168 A2C 2053 CIN3 2780 GLW 4024 Sec. 4, T68, R2E NGR 2140 CIN2 2882 PDC 4042 NE-SW-SW 2531 CIN1 2940 E1. 1010 - TD 4076 (GRL) CAT 2545 UTC 3014 Operator: Lawton DND 986 CIN5 2274 TRN 3002 Farm: Drewyer DTR 1072 CIN4 2345 BLR 3334 PN: 23751 A2C 1695 CIN3 2405 GLW 3660 Sec. 25, T68, RZE NGR 1776 CIN2 2518 PDC 3630 NE-SE-NE CLN 2166 CIN1 2562 E1. 864 - TD 3752 (GRL) CAT 2182 UTC 2636 Operator: Occidental Pet. DND 1125 CIN5 2392 Farm: Rupert et ux #1 DTR 1216 CIN4 2456 PN: 28529 A2C 1832 CIN3 2520 Sec. 29, T68, RZE NGR 1910 CIN2 2631 SW-SE-NE CLN 2287 CIN1 2677 E1. 930 - TD 3852 (GRL) CAT 2303 UTC 2750 TRN 3115 BLR 3440 GLW 3757 PDC 3775 Operator: McClure DND 1103 CIN5 2394 TRN 3113 Farm: Francourer #1 PN: 22112 A2C 1815 Sec. 18, T68, R3E NW-NE-SW 2282 E1. 888 - TD 3900 (SDR) BLR 3451 GLW 3793 PDC 3814 82 Lenawee County (continued) Operator: Bell 8 Gault DND 1089 CIN5 2385 Farm: Burnett et a1 #1 DTR 1170 PN: 21637 A2C 1845 Sec. 22, T68, R3E NW-SE-NE 2278 E1. 849 -.TD 3605 (SDR) TRN 3105 BLR 3417 Operator: California Co. DND 1030 CIN5 2307 Farm: Mohr #1 DTR 1110 CIN4 2376 TRN 3037 BLR‘ 3368 PN: 24515 A2C 1746 CIN3 2441 GLW 3702 Sec. 30, T68, R3E NGR 1823 CIN2 2551 PDC 3716 C-SE-NW 2201 CIN1 2595 E1. 872 - TD 3764 (GRL) CAT 2216 UTC 2676 Operator: Marathon DND 1045 CIN5 2327 TRN 3062 Farm: Mohr et a1 #1 DTR 1124 PN: 24749 AZC 1730 Sec. 30, T68, R3E C-SW-NE 2213 E1. 853 - TD 3795 (GRL) Operator: McCulloch Oil DND 1016 Farm: Barrow et ux #1-30 DTR 1092 PN: 28803 Sec. 30, T68, R3E C-NE-SW AZC 1716 NGR 1790 2180 E1. 854 - TD 3704 (GRL) ' CAT 2196 UTC 2696 CIN5 CIN4 CIN3 CIN2 CIN1 UTC 2286 2356 2418 2530 2572 2646 Operator: Bell 6 Gault DND 824 CIN5 2222 Farm: Brenke #1 PN: 35807 Sec. 2, T68, R4E SW-SW-SW E1. 792 - TD 3752 (SDR) DTR 926 A2C 1660 AlC 1790 CLN 2110 BLR 3394 GLW 3727 PDC 3741 TRN 3013 BLR 3344 GLW 3677 TRN 2918 BLR 3256 GLW 3660 PDC 3670 Operator: Morriss DND 87 CIN5 1870 TRN 2406 Farm: Downing #1 PN: 19191 Sec. 1, T68, R5E NW-NW-SE - CLN 1637 E1. 684 - TD 2492 (SDR) Operator: Morriss DND 107 CIN5 1839 TRN 2421 Farm: Downing #2 DTR 198 PN 19375 Sec. 1, T68, R5E NE-NE-SW E1. 683 - TD 2492 (SDR) CAT 1737 83 Lenawee County (continued) Operator: Morriss DND 107 TRN 2647 Farm: Downing #3 DTR 177 PN: 19376 Sec. 1, T68, R58 SE-NW-SE CLN 1720 E1. 680 - TD 2491 (SDR) Operator: Mutch CIN5 1683 TRN 2353 Farm: Downing #1-A PN: 22865 Sec. 1, T68, R5E SW-SE-NE CLN 1568 El. 681 - TD 3025 (SDR) Operator: Barton . DND 520 CIN5 2075 TRN 2635 Farm: Borton #2 DTR 595 . PN: 130 Sec. 5, T68, R5E SE-SE ' CLN 1660 E1. 715 - TD 2830 (SDR) CAT 1965 Operator: Withrow,Rogers DND 325 TRN 2468 Farm: Ross #1 7 DTR 385 PN: 3342 Sec. 23, T68, RSE SE-NE-NE CLN 1670 E1. 683 - TD 2593 (SDR) CAT 1780 Operator: Hall DND 45 CIN5 1779 TRN 2355 Farm: LaVoy #1 PN: 7634 Sec. 25, T68, RSE SE-NE-NW CLN 1528 E1. 678 - TD 2492 (SDR) CAT 1673 Operator: IMich. Pacific Oil DND " - CIN5 1666 TRN 2250 Farm: Busey #1 DTR 66 PN: 3793 Sec. 25, T68, R5E NE-SE-SE E1. 677 - TD 2505 CLN 1450 CAT 1627 Operator: Bub Oil DND ~432 CIN5 1793 TRN 2500 Farm: Garno et a1 #1 DTR 503 PN: 26538 A2C 1198 Sec. 32, T68, R5E SW-SE-SE CLN 1688 E1. 684 - TD 3240 (SDR) UTC 2132 GLW 3227 PDC 3239 84 Lenawee County (continued) Operator: W.K.Deve1. 00. TRN 2490 Farm: Weisinger #1 PN: None listed Sec. 33, T68, R5E NE-NE E1. 710 - TD 2670 (SDR) Operator: Kernodle DND 60 CIN5 1527 TRN 2116 Farm: Trimmins Heirs #1 PN: 8319 Sec. 36, T68, RSE NE-SE-NE CLN 1330 El. 676 - TD 2216 (SDR) Operator: Neal DND 1202 CIN5 2497 TRN 3115 Farm: Dunigan #1 PN: 9800 Sec. 7. T78, R1E NE-NW-NE E1. 956 - TD 3175 (SDR) CAT 2398 Operator: Good & Good DND 1029 CIN5 2184 TRN 2942 Farm: Borck PN: 25052 Sec. 28, T78; RlE SE-SW-NE E1. 912 - TD 3650 (SDR) GLW 3550 PDC 3568 Operator: Pannell DND 1038 CIN5 2160 TRN 2929 Farm: Weber #1 DTR 1138 CIN4 2240 BLR 3210 PN: 22716 A20 1582 CIN3 2294 GLW 3520 Sec. 29, T78, RlE NGR 1658 CIN2 2410 PDC 3538 SW-SW-SW CLN 2063 CIN1 2461 El. 912 - TD 3630 (GRL) CAT 2077 UTC 2539 Operator: Miller DND 978 CIN5 2102 Farm: Pike #1 DTR 1082 CIN4 2174 PN: 26309 A20 1574 CIN3 2232 2865 BLR 3139 GLW 3452 Sec. 33, T78, RlE A10 1630 CIN2 2342 PDC 3472 SW-SE-NW CLN 2000 CIN1 2390 E1. 882 - TD 3520 (GRL) CAT 2016 UTC 2463 Operator: Good 8 Good DND 876 CIN5 2022 TRN 2781 Farm: Siegfried #1 DTR 976 CIN4 2088 PN: 23723 A20 1504 CIN3 2147 Sec. 34, T78, RlE A10 1568 CIN2 2259 NW-NE-SW . CLN 1926 CIN1 2309 E1. 816 - TD 3420 (GRL) CAT 1942 UTC 2384 BLR 3063 GLW 3376 PDC 3396 85 Lenawee County (continued) Operator: Hammer Oil DND 903 Farm: Wellnitz #1 DTR 1010 PN: 21822 A20 1509 Sec. 36, T78, RlE NGR 1575 NW-SE-NW CLN 1958 El. 855 - TD 3526 (GRL) CAT 1976 CIN5 2057 CIN4 2120 CIN3 2181 CIN2 2290 CIN1 2339 UTC 2416 TRN 2811 BLR 3101 GLW 3412 PDC 3433 Operator: Occidental DND 914 Farm: Seeburger #1 DTR 1020 CIN5 2144 CIN4 2208 TRN 2881 BLR 3198 PN: 28533 A20 1609 CIN3 2272 GLW 3526 Sec. 12, T78, R28 A10 1666 CIN2 2382 PDC 3548 NW-SW-NE CLN 2040 CIN1 2428 El. 827 - TD 3575 (GRL) CAT 2052 UTC 2504 Operator: Ashland Oil DND 932 CIN5 2138 TRN 2891 Farm: Much #1 DTR 1040 CIN4 2202 PN: 26411 A20 1631 CIN3 2266 Sec. 13, T78, R2E A10 1686 CIN2 2378 BLR 3200 GLW 3526 PDC 3548 SW-SE-SE CLN 2033 CIN1 2424 E1. 840 - TD 3800 (GRL) CAT 2044 UTC 2504 Operator: Amer.Hydrocarbons DND 828 CIN5 2006 Farm: Emerson #1 DTR 922 CIN4 2060 PN: 23737. A20 1450 CIN3 2122 Sec. 27, T78, R2E A10 1492 CIN2 2236 NW-NE-SE CLN 1904 CIN1 2278 El. 840 - TD 3468 (GRL) CAT 1914 UTC 2356 Operator: A.P.A. Oil DND 710 CIN5 1952 Farm: Gemple #1 PN: 23087 Sec. 25, T78, R3E DTR 773 A20 1429 SE-SW-SW CLN 1846 E1. 753 - TD 3427 (SDR) TRN 2752 . BLR 3060 GLW 3340 PDC 3356 2697 BLW 2997 GLW 3362 PDC 3372 Operator: Horizon Oil DND 846 CIN5 2031 TRN 2777 Farm: Meech 6 Griffith #1 DTR 943 CIN4 2086 BLR 3080 PN: 26876 A20 1531 CIN3 2150 GLW 3410 Sec. 30, T78, R3E A10 1595 CIN2 2268 PDC 3424 SW-SE-NW CLN 1928 CIN1 2303 E1. 799 - TD 3685 (GRL) CAT 1938 UTC 2380 Operator: Powell Farm: Iott #1 PN: 8254 Sec. 1, T78, R5E SE E1. 677 - TD 2304 (SDR) CAT 1435 TRN 2234 86 Lenawee County_(continued) Operator: LaDu Oil DND 320 CIN5 1790 TRN 2373 Farm: Long #2 PN: 983 Sec. 2, T78, R5E SW-NE-NE El. 708 - TD 3328 (SDR) CAT 1660 Operator: Bub Oil DND 436 CIN5 1800 TRN 2485 Farm: Vanhaerents #1 PN: 23979 Sec. 4, T78, RSE NW-SW-NW 1679 E1. 683 - TD 3246 (SDR) BLR 2801 GLW 3211 PDC 3221 Operator: Bub Oil DND 439 CIN5 1778 TRN 2488 Farm: Seidel #1 PN: 23667 Sec. 5, T78, R5E 515 A20 1239 BLR 2798 GLW 3206 PDC 3214 SE-NE-NE 1674 E1. 683 - TD 3251 (SDR) 2118 Operator: Bertson DND 55 TRN 1985 Farm: Heath #1 PN: 7870 Sec. 13, T78, R5E SE-SE-SE E1. 682 - TD 2091 (SDR) Operator: M.V.O.C. Inc. CIN5 1592 TRN 2297 Farm: Tape #1 PN: 24554 Sec. 14, T78, R5E SE-SE-SE CLN 1474 E1. 681 - TD 3112 (SDR) Operator: Bernhardt Oil DND CIN5 1282 TRN 2007 Farm: Gerber #1 PN: 24541 A20 701 Sec. 24, T78, RSE SE-SE-SE 1145 E1.690 - TD 2087 (SDR) Operator: M.V.O.C. Inc. DND 121 CIN5 1505 TRN 2208 Farm: Hoffman #1 PN: 24362‘ Sec. 24, T78, R5E DTR 188 A2C 942 SW-SW-SE CLN 1370 El. 691 - TD 2476 (SDR) 87 Lenawee County (continued) Operator: Bernhardt Oil DND CIN5 1274 Farm: Gerber Estate #1 DTR 44 PN: 25016 AZC 728 Sec. 25, T78, T58 NE-NE-NE CLN 1156 81. 687 - TD 2901 (SDR) TRN 1993 BLR 2290 GLW 2691 PDC 2711 Operator: LeBlanc DND Farm: Fick #1 DTR 65 CIN5 2060 TRN 2309 PN: 8204 Sec. 26, T78, R58 S-SW-SE 81. 688 - TD 3128 (SDR) Operator: Bauer Bros. DND 932 CIN5 2045 Farm: Beal #1 PN: 24336 Sec. 3, T88, RlE DTR 991 A20 1495 NE-SW-SW CLN 1941 El. 873 - TD 3448 (GRL) UTC 2402 GLW 3055 PDC 3075 2801 BLR 3075 Operator: Good 6 Good DND 917 CIN5 2054 TRN 2810 Farm: Beal GG-l ' DTR 1016 CIN4 2118 BLR 3082 PN: 23276 AZC 1536 CIN3 2174 GLW 3396 Sec. 3, T88, RlE AlC 1594 CIN2 2288 PDC 3416 NE-NW-SW CLN 1950 CIN1 2336 El. 874 - TD 3487 (GRL) CAT 1968 UTC 2414 Operator: Bauer Bros. CIN5 2050 TRN 2806 Farm: Moore #1 PN: 24491 Sec. 3, T88, R18 NW-NE-SW 81. 875 - TD 3446 (GRL) BLR 3082 GLW 3403 Operator: Sun Oil DND 930 CIN5 2078 Farm: Cisco #1 DTR 1035 CIN4 2142 TRN 2835 BLR 3110 PN: 23891 Sec. 4, T88, RlE AZC 1564 A10 1617 CIN3 2200 GLW 3426 CIN2 2313 PDC 3446 NE-SE-NE CLN 1976 CIN1 2364 81. 887 - TD 3603 (GRL) CAT 1990 UTC 2442 Operator: The M000 Farm: Walter #1 PN: 23652 Sec.18, T88, R18 DND 926 DTR 1026 A2C 1488 AlC 1544 CIN5 2012 TRN 2762 CIN4 2077 BLR 3028 CIN3 2130 GLW 3334 CIN2 2243 PDC 3353 SW-SE-NW CLN 1903 CIN1 2290 81.872 - TD 3488 (GRL) CAT 1917 UTC 2368 Lenawee County,(continued) 88 Operator: Hackett DND 736 CIN5 1821 Farm: Lipe #4-1 PN: 24882 A2C 1302 Sec. 25, T88, RlE NW-NW-NE 1706 81. 810 - TD 3238 (SDR) UTC 2176 TRN 2576 BLR 2844 GLW 3175 PDC 3191 Operator: Buck 6 Basin DND 814 CIN5 1885 2648 Farm: Ferris Comm. #1 DTR 913 CIN4 1950 BLR 2920 PN: 21916 A2C 1394 CIN3 2005 GLW 3241 Sec. 27,T8S, 818 AlC 1450 CIN2 2125 PDC 3262 NW-NW-NW 1792 CIN1 2166 El. 831 - TD 3352 (GRL) CAT 1811 UTC 2240 Operator: Neyer DND 821 CIN5 1893 TRN 2655 Farm: Brasher #1 DTR 925 CIN4 1957 BLR 2940 PN: 24905 AZC 1408 CIN3 2006 GLW 3237 Sec. 28, T88, R18 AlC 1468 CIN2 2120 3257 NE-NW-NW CLN 1786 CIN1 2171 81. 832 - TD 3306 (GRL) CAT 1800 UTC 2248 Operafor: MOCO DND 832 CIN5 1900 TRN 2653 Farm: Flint Comm. #1 942 CIN4 1958 BLR 2933 PN: 25931 A20 1422 CIN3 2010 GLW 3224 Sec.31, T88, RlE A10 1474 CIN2 2123 3244 NW-NE-NW 1792 CIN1 2170 El. 839 - TD 3306 (GRL) CAT 1811 UTC 2246 'Operator: Howard DND 735 CIN5 1837 2593 Farm: Snyder #1 DTR 843 CIN4 1896 BLR 2874 PN: 23718 AZC 1370 CIN3 1953 GLW 3193 Sec. 20, T88, R28 AlC 1431 CIN2 2068 PDC 3215 NW-SE-NW 1743 CIN1 2110 El. 790 - TD 3284 (GRL) CAT 1764 UTC 2194 Operator: Basin Oil DND 703 CIN5 1864 TRN 2593 Farm: Snedicor et al #1 PN: 23527 A2C 1314 Sec. 17, T88, R38 SE-NE-SE 1732 81. 749 - TD 3281 (SDR) BLR 2875 GLW 3230 PDC 3258 Operator: Occidental DND 602 CIN5 1743 TRN 2496 Farm: Willet et ux #1 DTR 702 CIN4 1788 BLR 2784 PN 28531 A2C 1260 CIN3 1847 GLW 3124 Sec. 26, T88, R38 AlC 1330 CIN2 1962 NW-SE-SE 1636 CIN1 2007 81. 746 - TD 3147 (GRL) CAT 1660 UTC 2089 89 Lenawee County (continued) Operator: Neptune Oil DND 606 CIN5 1753 TRN 2492 Farm: Raymond #1 PN: 23618 A20 1230 Sec. 27, T88, R38 88 - SE-SE CLN 1638 El. 748 - TD 3191 (SDR) UTC 2084 BLR 2767 GLW 3111 PDC 3130 Operator: Sun Oil Farm: Jacob et a1 PN: (not listed) Sec. 7, T88, R48 0-8 81. 711 - TD 1004 (GRL) DND 574 DTR 678 Operator: Buck 6 Basin DND 570 CIN5- 1753 TRN 2508 Farm: McClenathen et ux #1 DTR 657 CIN4 1798 BLR 2808 PN: 16693 A2C 1260 CIN3 1866 GLW 3147 Sec.18, T88, R48 AlC 1326 CIN2 1980 PDC 3174 NE-NE-NW 1638 CIN1 2018 81. 717 - TD 3217 (GRL) CAT 1656 UTC 2104 Operator: D.O.H.I. Oil DND 215 Farm: Farrow #1 .PN: 1167 Sec. 13, T88, 858 SE-NE 1467 81. 696 - TD 1477 (SDR) Operator: Ogden Oil 315 TRN 2217 Farm: Fachett #1 PN: (none listed) Sec. 28, T88, RS N - SW CLN 1400 81. 700 - TD 2325 (SDR) Operator: 8ckert DND 310 CIN5 1479 2198 Farm: Taylor #1 PN: 10448 Sec. 32, T88, 858 SE-NE-SW 1373 81. 715 - TD 3902 (SDR) BLR 2540 GLW 2900 PDC 2920 Operator: Occidental CIN5 1474 TRN 2187 Farm: Schumacher et a1 #1 CIN4 1502 BLR 2491 PN: 28543 A20 966 CIN3 1554 GLW 2862 Sec. 34, T88, 858 AlC 1040 CIN2 1664 PDC 2879 NE-SE-SW CLN 1372 CIN1 1705 81. 713 - TD 2930 (GRL) CAT 1388 UTC 1784 90 Lenawee County (continued) Operator: Houseknecht Oil DND 652 CIN5 1700 Farm: Gillen #1 DTR 746 CIN4 1756 TRN 2460 BLR .2726 PN: 23863 A20 1243 CIN3 1816 GLW 3038 Sec. 12, T98, 818 A10 1305 CIN2 1928 PDC 3052 NE-NE-NW CLN 1606 CIN1 1970 81. 766 - TD 3139 (GRL) CAT 1626 UTC 2048 Operator: Neptune Oil DND 597 CIN5 1718 TRN 2472 Farm: Raymond Estate #1 DTR 694 CIN4 1762 BLR 2755 PN: 23295 A20 1250 CIN3 1826 GLW 3094 Sec. 3, T98, R38 A10 1304 CIN2 1940 PDC 3109 NW-NE-NE CLN 1622 CIN1 1980 El. 752 - TD 3200 (GRL) CAT 1645 UTC 2060 Monroe County Operator: Basin Oil DND 99 Farm: Kanitz et ux #1 DTR 153 PN: 22092 - A20 1203 Sec. 13, T58, R68 A10 1254 CIN5 1819 CIN4 1850 CIN3 1896 CIN2 2014 2452 BLR 2829 GLW 3251 TRM 3260 SE-SE-SE CLN 1689 CIN1 2071 81. 677 - TD 3343 (GRL) . CAT 1712 UTC 2126 Operator: Bell 6 Marks DND 171 CIN5 1855 TRN 2488 Farm: Lennard #1 DTR 266 CIN4 1895 _ BLR 2868 PN: 23659 A20 1288 CIN3 1942 GLW 3274 Sec.15, T58, R68 ’ A10 1345 CIN2 2056 3290 SE-SE-NE CLN 1726 CIN1 2108 81. 682 - TD 3313 (GRL) CAT 1749 UTC 2166 Operator: Huffmaster DND 126 CIN5 1910 TRN 2512 Farm: Bordine #1 PN: 3368 Sec.16, T58, R68 NW-SE-NW CLN 1798 81. 701 - TD 2660 (SDR) Operator: Olmstead DND - CIN5 1707 TRN 2325 Farm: Frink #1 DTR 68 PN: 3667 Sec. 25, T58, R68 SW-SE-NE CLN 1610 El. 672 - TD 2800 (SDR) CAT 1641 UTC 2075 Operator: Dayton DND - Farm: Fasking #1 DTR 68 PN: 1097 1 Sec. 30,T58, R68 NE-NE El. 692 - TD 3398 (SDR) 91 Monroe County (continued) Operator: Bell 6 Marks DND 60 CIN5 1903 TRN 2511 Farm: Heath #1 PN: 23531 Sec. 4, T58, R78 DTR 132 A2C 1330 SE-SE-NE CLN 1777 81. 658 - TD 3398 (SDR) BLW 2896 GLW 3366 TRM 3378 Operator: Dow Chemical Co. DND CIN5 1889 TRN 2462 Farm: Grassley #1 DTR 100 BLR 2845 PN: 17767 Sec. 7, T58, R78 SE-SE-NW 1708 81. 680 - TD 3325 (SDR) CAT 1836 Operator: Humble Oil DND 77 CIN5 .1884 Farm: McCrea Comm. #1 DTR 189 PN: 25606 A20 1320 Sec. 9,T58, R78 C-NW-NW El. 689 thD 3255 (SDR) 1767 1787 UTC 2186 TRM 3285 TRN 2499 BLR 2858 Operator: Collin CIN5 1885 2480 Farm: Denhard #1 64 PN: 19419 ' Sec. 10,TSS, R78 NW-NE-NW 1753 El. 667 - TD 2811 (SDR)' CAT 1775 Operator: Humble Oil DND 130 CIN5 1829 TRN 2441 Farm: Oger #1 DTR 228 CIN4 1844 BLR 2803 PN: 24405 A2C 1230 CIN3 1890 GLW 3206 Sec. 15, T58, R78 AlC 1296 CIN2 2006 TRM 3226 0-88-88 CLN 1703 CIN1 2068 81. 676 - TD 3260 (GRL) CAT 1723 UTC 2126 Operator: Simpson DND 56 CIN5 1798 TRN 2420 Farm: Jennings CG #1 DTR 120 CIN4 1820 BLR 2771 PN: 23532. AZC 1194 CIN3 1863 GLW 3164 Sec. 22, T58, R78 AlC 1258 CIN2 1979 TRM 3184 NW-SE-NW 1674 CIN1 2036 81. 663 - TD 3280 (GRL) CAT 1697 UTC 2098 Operator: McClure 6 Mask DND CIN5 1799 TRN 2420 Farm: Jennings #1 DTR 57 PN: 19227 Sec. 22, T58, R78 SE-NW-NW CLN 1686 El. 665 - TD 2728 (GRL) CAT 1708 BLR 2771 GLW 3200 TRM 3220 92 Monroe County (continued) Operator: None listed TRN 2430 Farm: Leminard PN: None listed Sec. 16, T58, 8108 NW-NE 81. 580 - TD 2430 (SDR) Operator: Sturman DND -- CIN5 1375 TRN 2000 Farm: Chapman #1 PN: 11221 Sec. 29, T58, 8108 NE-NE-NW CLN 1261 81. 597 - TD 2377 (SDR) CAT 1277 Operator: Cilley Farm: Huntley #1 PN: 549 Sec. 15, T68, 86E W-NW 81. 695 1 TD 2100 (SDR) Operator: Morriss DND 70 Farm: Lidster #1 PN: 980 Sec. 18, T68, 868 NW-NW 81. 707 - TD 3160 (SDR) BLR 2381 GLW 2846 TRM 2865 TRN 2227 2243 GLW 2953 2965 Operator: Morriss DND 77 CIN5 1560 TRN 2148 Farm: Reau #1 PN: 957 Sec. 18, T68, 86E SE-SW El. 707 - TD 2262 (SDR) Operator: Morriss DND 7O CIN5 1555 TRN 2125 Farm: LaPointe 6 Dusseau #1 PN: 835 Sec. 19, T68, 86E NE-NE-NW 81. 709 - TD 2253(8DR) CAT 1440 operator: Basin Oil DND -- CIN5 1530 2118 Farm: Dusseau 6 LaPointe #2 DTR 83 PN: 6798 Sec. 19, T68, 86E SE-SE-NW El. 676 - TD 2191 (SDR) CAT 1434 93 Monroe County (continued) Operator: A.V. Oil DND 64 CIN5 1404 TRN 2058 Farm: Roe #2 PN 3637 Sec. 19, T68, R68 SE-SE-SW CLN 1275 El. 676 - TD 2078 (SDR) Operator: McPheron DND CIN5 1470 TRN 2061 Farm: Roe #1 DTR 60 PN: 2952 Sec. 19, T68, 86E SE-SE-SW El. 681 - TD 2110 (SDR) CAT 1380“" Operator: McPheron DND CIN5 1416 TRN 2096 Farm: Roe #6 DTR 80 PN: 7364 Sec. 19, T68, 86E NW-NE-SW CLN 1295 El. 676 7 TD 2160 (SDR) Operator: McPheron DND 70 CIN5 1470 TRN 2072 Farm: Gaertner #3 PN: 6767 Sec. 19, T68, 86E NW-SW-SE CLN 1290 El. 677 - TD 3137 (SDR) Operator: Clapsaddle et a1 DND 71 CIN5 1572 TRN 2118 Farm: Resume #1 PN: 7301 Sec. 20, T68, 868 El. 675 - TD 2460 (SDR) CAT 1473 Operator: None listed DND 38 CIN5 1563 TRN 2133 Farm: Dundee Well DTR 103 PN: None listed Sec. 25, T68, R68 NE-NE El. 680 - TD 2277 (SDR) Operator: Jetter Drilling_ DND 42 CIN5 1525 TR 2110 Farm: Morrison #1 PN: 7836 Sec. 26, T68, 86E NW-NW-SE El. 677 - TD 2233 (SDR) CAT 1442 94 Monroe County (continued) Operator: McPheron Farm: Spahr #1 PN: 7716 See. 29, T68, 868 NW-NW-NW CLN 1292 81. 675 - TD 2172 (SDR) TRN 2073 Operator: Rowe DND - TRN 2099 Farm: Judit #1 PN: 12833 See. 29, T68, 868 NW-NE-SW 81. 676 - TD 2510 (SDR) Operator: Shiffman DND 67 CIN5 1598 TRN 2039 Farm: Bragg #1 PN: 7538 Sec. 29, T68, 86E SW-SW-SW El. 680 - TD 2147 (SDR) Operator: Shiffman Farm: Bragg #2 PN: 8847 ' - . Sec. 29, T68, R68 NW-SW-SW 81. 675 - TD 2125 (SDR) TRN 2024 Operator: Simon DND 64 CIN5 1455 TRN 2042 Farm: Rowe #1 PN: 7190 Sec. 30, T68, 868 NE-SE-SE 81. 678 - TD 2124 (SDR) CAT 1352 Operator: Dever DND 62 CIN5 1371 TRN 2060 Farm: Lauer #1 DTR 129 CIN4 1418 PN: 23850 A20 837 CIN3 1467 Sec. 30, T68, 868 A10 888 CIN2 1580 NE-NW-NW CLN 1257 CIN1 1701 81. 678 - TD 2160 (GRL) CAT 1270 UTC 1848 Operator: Good 6 Good DND -- CIN5 1353 TRN 2043 Farm: Roe #1 PN: 22879 AZC 796 CIN3 1445 CIN4 1398 BLR 2393 Sec. 30, T68, R68 A10 844 CIN2 1559 NE-NE-SW CLN 1235 CIN1 1680 El. 678 - TD 2437 (GRL) CAT 1248: UTC 1829 95 Monroe County (continued) Operator: A.V. Oil DND - CIN5 1455 TRN 2045 Farm: Vandercook #1 DTR 56 PN: 2688 Sec. 30, T68, R68 NE-SE-NE 81. 680 - TD 2184 (SDR) UTC 1850 Operator: Berston DND - CIN5 1472 TRN 2055 Farm: Mueller #1 DTR 80 PN: 12115 Sec. 30, T68, R68 SE-NW-NW 81. 676 - TD 2104 (SDR) CAT 1376 Operator: McPheron DND - CIN5 1503 TRN 2068 Farm: Montry #5 DTR 85 PN: 9257 Sec. 30, T68, 868 NW-SE-SW 81. 677 - TD 2311 (SDR) CAT 1355 Operator: Vanco Oil DND -- CIN5 1466 TRN 2052 Farm: Montry #2 PN: 7393 . Sec. 30, T68, R68 SW-SE-SW CLN 1256 81. 678 - TD 2184 (SDR) CAT 1376 Operator: Fisher-McCall Oil DND - CIN5 1535 TRN 1535 Farm: Brunt #1 DTR 6O PN: 7105 Sec. 30, T68, 868 NE-SW-SW 81. 679 -TD 2137 (SDR) Operator: Good 6 Good DND 105 TRN 2064 Farm: Halberstadt #1 PN: 7201 . Sec. 31, T68, R68 SW-NE-NW CLN 1070 81. 678 - TD 2265 (SDR) UTC 1838 Operator: McPheron DND 9O CIN5 1362 TRN 2040 Farm: Duval #1 PN: 6965 Sec. 31, T68, R68 SW-NE-SW CLN 1070 81. 675 - TD 2110 (SDR) 96 Monroe County (continued) Operator: Powell 6Gilbreath DND 56 CIN5 1483 TRN 2034 Farm: Cain #1 PN: 7211 Sec. 31, T68, 868 NW-NE-SW CLN 1238 El. 678 - TD 2150 (SDR) CAT 1394. Operator: Good 6 Good DND 60 CIN5 1472 _ TRN 2054 Farm: Montry #4 PN: 8569 ‘ Sec. 31, T68, R68 NW-NE-NW 81. 676 - TD 2144 (SDR) CAT 1365 Operator: Duffey CIN5 1542 TRN 2184 Farm: Russell Estate #1 PN: 8730 ' Sec. 5, T68, R78 SW-SW-SW CLN 1381 81. 648 - TD 2286 (SDR) UTC 1987 Operator: Dow Chemical Farm: Kapka #1 DTR 43 CIN5 1558 TRN 2233 PN: 19263 Sec. 7, T68, 878 NW-NW-SW 81. 667 - TD 2360 (SDR) UTC 2156 Operator: None listed TRN 2150 Farm: Norgard PN: None listed Sec. 8, T68, R78 NW-NW 81. 660 - TD 2150 (SDR) Operator: Bell 6Gault TRN 2037 Farm: Brossia #1 PN: 26755 Sec. 13, T68, R78 88 CLN 1258 81. 633 - TD 2116 (SDR) Operator: Morriss Farm: Elconin #1 PN: 11180 Sec. 1, T68, 898 NE-SW-SW El. 590 - TD 1925 (SDR) TRN 1985 97 DND DTR Monroe County (continued) Operator: Morriss Farm: Compau #1 PN: 13867 Sec. 12, T68, 89E TRN 1895 BLR 2287 GLW 2745 TRM 2763 SW-SW-NE CLN 1135 El. 592 - TD 2910 (SDR) CAT 1155 UTC 1725 Operator: Harvey DND CIN5 1377 TRN 2033 Farm: Brackett #1 PN: 7471 Sec. 4, T78, 868 NW-NE-NW 81. 673 - TD 2270 (SDR) CLN 1230 CAT 1244 Operator: McDonald Farm: McCarty #1 PN: 7519 See, 6, T78, 86E NE-NE-NE CLN 1200 81. 677 - TD 2105 (SDR) TRN 2007 Operator: Berell Oil CIN5 1760 TRN 1985 Farm: Yape #1 PN: 7424 See. 7, T78, R68 SW-SE-NW 81. 680 - TD 2295 (SDR) Operator: Ferguson6 Garrison CIN5 1272 TRN 1963 Farm: Shimp #1 PN: 25494 A20 666 Sec. 16, T78, R68 S-SE-SE . CLN 1150 81. 686 - TD 3671 (SDR) CAI 1162 Operator: Brailey Oil Farm: Ault #1 PN: 6610 Sec. 17, T78, 868 DND DTR NW SW NW CLN 1240 81. 678 - TD 2850 (SDR) CAT 1255 UTC 1810 Operator: Rowe Farm: Bieber #1 PN: 15091 See. 18, T78, R68 DND DTR-- SW-NW-SW CLN 1225 El. 680 - TD 2016(SDR) CAT 1236 UTC 1710 BLR 2300 GLW 2698 2720 TRN 1957 TRN 1931 98 Monroe County (continued) Operator: Meredith 6 Merrill DND -- CIN5 1358 TRN 1947 Farm: Bieber #1 PN: 19620 Sec. 18, T78, R68 NE-NW-SW 81. 684 - 'TD 2437 (SDR) CAT 1265 UTC 1750 Operator: Bernhardt Oil DND CIN5 1226 TRN 1944 Farm: Allen #2 PN: 25378 Sec. 19, T78, R68 35 A2C 663 SW-SW-SW 1110 81. 688 - TD 2763 (SDR) UTC 1701 BLR 2237 GLW 2650 TRM 2670 Operator: Bernhardt Oil DND CIN5 1163 TRN 1881 Farm: Allen #1 DTR 24 BLR 2205 PN: 21076 Sec. 30, T78, 868 NE-NE-NW CLN 1051 81. 687 - TD 2400 (SDR) Operator: Bernhardt Oil DND CIN5 1192 TRN 1910 Farm:, Rain #1 DTR 28 PN: 20803 Sec. 30, T78, 86E NE-NW-NW CLN 1078 81. 689 - TD 2382 (GRL) Operator: Dow Chemical 00. DND CIN5 1140 Farm: Steuwe et ux #1 DTR PN: 19563 Sec. 34, T78, 86E NW-NW-SW 1020 El. 679 - TD 2199 (SDR) CAT 1037 UTC 1637 1844 BLR 2131 Operator: Parsons Bros DND CIN5 1317 TRN 1976 Farm: Newcomb #1 PN: 19574 Sec. 4, T78, 878 NW-NE-NE 1190 81. 649 - TD 2179 (SDR) CAT 1208 Operator: Parsons Bros. DND CIN5 1335 TRN 2002 Farm: Howard #1 DTR 14 PN: 19823 Sec. 4, T78, R78 NW-SW-NW 1213 81. 659- TD 2124 (SDR) CAT 1230 99 Monroe County (continued) Operator: Grand Oil CIN5 1460 TRN 2009 Farm: Waltz #1 BLR 2335 PN: 22475 A2C 767 Sec. 4,T7S, R78 NW-NW-SE CLN 1343 81. 654 - TD 2443 (SDR) Operator: Grand Oil DND CIN5 1275 TRN 1938 Farm: Bastian #1 PN: 22220 Sec. 9, T78, R78 NW-NE-NE CLN 1153 81. 649 - TD 2350 (SDR) Operator: McClure DND CIN5 1247 1992 Farm: Stotz-Williams #1 CIN4 1257 BLR 2409 PN: 25062 A20 624 CIN3 1286 GLW 2877 Sec. 10, T78, 87E CIN2 1396 TRM 2890 SW-SW-NE CLN 1112 CIN1 1530 81. 650 - TD 2989 (GRL) CAT 1130 UTC 1691 Operator: Basin Oil ' DND Farm: Metz Comm. #1 PN: 23024 A20 610 Sec. 12, T78, R78 SE-NE-SE 1037 81. 627 - TD 2659 (GRL) CAT 1053 CIN5 1170 CIN4 1186 CIN3 1226 c182 1336 0181 1450 arc 1610 1831 BLR 2182 GLW 2610 TRM 2627 Operator: Beck DND CIN5 1348 1948 Farm: Sancrant #1 DTR. 38 PN: 7702 - Sec. 19, T78, 878 NW-SW-NW 1207 81. 669 - TD 5495 (SDR) CAT 1225 Operator: Strasburg Oil Farm: Hansberger #1 DND DTR PN: None listed Sec. 5, T78, R88 NW-NW El. 625 - TD 1989 (SDR) CIN5 1300 TRN 1884 Operator: Hack Drilling Farm: Weeman #1 DND DTR CIN5 1218 1870 CIN4 1228 BLR 2222 PN: 23356 A2C 566 CIN3 1248 GLW 2654 Sec. 6, T78, R88 AlC 644 CIN2 1364 TRM 2668 NW-SE-SE 1086 CIN1 1490 81. 641 - TD 2711 (GRL) CAT 1103 UTC 1642 100 MOnroe County (continued) Operator: Parsons Bros. CIN5 1268 TRN 1829 Farm: Weeman #1 PN: 19573 Sec. 7, T78, 888 SW-SE-NW El. 630 - TD 2313 (SDR) BLR 2166 Operator: Midwest Explor. DND TRN 1793 Farm: Inklovich #1 PN: 28581 Sec. 9, T78, 888 88-NE-SW . CLN 1200 81. 623 - TD 2549 (SDR) Operator: None listed Farm: Moore Well PN: None listed Sec. ?, T78, 898 Not listed DND DTR 81. 585 - TD 1750 (SDR) CAT 1060 CIN5 1150 1735 Operator: Ashland Oil DND CIN5 1072 TRN 1780 Farm: Nichols #1 PN: 26224 Sec. 5, T88, R68 0-88-88 A20 543 A10 619 953 81. 693 - TD 2777 (081) CAT 967 CIN3 1130 CIN2 1230 CIN1 1385 UTC 1544 CIN4 1100 BLR 2103' GLW 2504 2520 1917 BLR 2216 Operator: Bernhardt Oil DND CIN5 1186 Farm: Creque #1 DTR 45 PN: 21345 Sec. 6, T88, R68 SE-SW-SE 1063 81. 692 - TD 2424 (SDR) Operator: Bauer Farm: Berry #1 PN: 21731 Sec.16, T88, R68 DND DTR NW-SW-SE CLN 915 El. 684 - TD 2321 (SDR) Operator: Bauer Farm: Madelinski #1 PN: 22423 Sec. 17, T88, R68 SW-SW-SE 81. 680 - TD 2516 (SDR) DND DTR CLN CIN5 1040 1741 BLR 2036 GLW 2504 2522 CIN5 1007 1724 BLR 2021 GLW 2478 2489 101 Monroe County (continued) Operator: Bauer Farm: Schaedler #1 DND DTR CIN5 1035 TRN 1750 BLR 2055 PN: 23307 Sec. 17, T88, R68 SE-SW-SW CLN 915 81. 674 - TD 2076 (SDR) Operator: Smoots Farm: Rittner #1 PN: 22788 Sec. 18, T88, R68 DND ‘145 DTR A2C 218 865 CIN5 1435 TRN 2146 BLR 2458 SE-SE-NW 1318 81. 697 - TD 2505 (SDR) Operator: Bauer Bros. Farm: Hillebrand #1 DND DTR CIN5 1115 TRN 1738 BLR 2037 PN: 24155 Sec. 20, T88, R68 SE-SW-NW , CLN 1015 . 81. 683 - TD 2500 (SDR) Operator: Sun 011‘ Farm: Clampitt #1 'DND DTR PN: 5031 Sec. 28, T88, 868 NW-NW-NW CLN 997 81. 690 - TD 2513 (SDR) Operator: Great Lakes Drlg.DND Farm: Fisher #1 DTR 22 80 PN: 22645 A2C 771 Sec. 31, T88, 86E SE-SE-NW CLN 1181 1711 BLR 2011 GLW 2471 2487 CIN5 1294 TRN 2034 81. 695 - TD 2233 (SDR) UTC 1827 Operator: Great Lakes Drlg.DND CIN5 1070 1809 Farm: Fisher #1 DTR CIN4 1103 BLR 2133: PN: 23373 A20 550 CIN3 1138 GLW 2523 Sec. 31, T88,868 AlC 630 CIN2 1243 2542 SE-SE-NE CLN 961 CIN1 1396 81. 696 - TD 2579 (GRL) CAT 977 UTC 1556 Operator: Norton 6Tuttle Farm: Schultz #1 PN: 22117 See. 1, T88, R78 SE-SW-SW DND DTR CLN CIN5 1039 TRN 1711 BLR 2017 GLW 2477 2500 81. 636 - TD 2531 (SDR) UTC 1607 102 Monroe County (continued) Operator: Dow Chemical DND -- CIN5 1060 TRN 1733 Farm: Yarger #1 DTR -- BLR 2005 PN: 19773 Sec. 2, T88, 878 SE-SW-SW CLN 905 81. 642 - TD 2054 (SDR) CAT 931 UTC 1620 Operator: Amer.Hydrocarbons DND - CIN5 1108 TRN 1813 Farm: McBride #1 DTR -- BLR 2128 PN: 22737. A20 495 ' Sec. 8, T88, R78 8-8W-NW- CLN 973 _81. 668 - TD 2601 (SDR) Operator: Hess 6 Roy DND -- CIN5 1060 TRN 1757 Farm: Brunt #1 DTR -- PN: 381 Sec. 9, T88, 878 NE-NE 81. 642 - TD 2164 (SDR) UTC 1500 Operator: Erie Oil DND -- CIN5 1000 TRN 1690 Farm: Temperance DTR -- PN: None listed Sec. 31, T88 878 SE 81. 645 - TD 1755 (SDR) CAT 870 Operator: None listed Farm: Bedford-Erie #2 PN: None listed Sec. 36, T88, R78 E-NW 81. 595 - TD 1658 (SDR) TRN 1598 Operator: Kruidenier DND - CIN5 916 ' TRN 1544 Farm: Potter et a1 #1 DTR -- PN: 15183 Sec. 22, T88, 888 NE-NW-NW CLN 738 El. 577 - TD 1830 (SDR) CAT 755 103 Washtenaw County Operator: Albers DND 1522 CINS 3671 TRN 4338 Farm: Kaiser #1 BLR 4691 PN: 25698 A20 2880 Sec. 6, T18, 838 SE-NE-NW ‘ CLN 3495 81. 969 - TD 4784 (SDR) Operator: Albers DND 1527 CIN5 3646 TRN 4300 Farm: Hannawald #1 DTR 1640 CIN4 3719 BLR 4744 PN: 28620 A20 2862 CIN3 3779 Sec. 6, T18, 838 A28 2942 CIN2 3906 NE-SW-SW CLN 3295 CIN1 3949 81. 960. TD 5020 (GRL) CAT 3307 UTC 4022 Operator: Ohio 011 DND 1494 CIN5 3560 TRN 4220 Farm: Cooper #1 DTR 1606 CIN4 3633 BLR 4637 PN: 19384 A20 2833 CIN3 3744 GLW 5044 Sec. 7, T18, 838 A28 2918 CIN2 3825 PDC 5054 SW-SW-SE CLN 3407 CIN1 3870 81. 938 - TD 5154 (GRL) CAT 3426 UTC 3936 Operator: Dannemiller DND 1723 CINS 3879 TRN 4660 Farm: Prentice #1 PN: 25057 VAZC 3085 Sec. 18, T18, 83E - ‘ C-SW-NW CLN 3704 81. 939 - TD 4846 (SDR) UTC 4379 Operator: Simpson 6 Gulf DND 1540 CIN5 3598 TRN 4270 Farm: Wagner #1 ‘ DTR 1630 CIN4 3682 BLR 4704 PN: 24161 ' A20 2873 CIN3 3739 GLW 5087 Sec. 22, T18, 838 A28 2945 CIN2 3863 PDC 5097 SW-SW-NW CLN 3454 CIN1 3910 El. 961 - TD 5159 (GRL) CAT 3474 . UTC 3979 Operator: Hunt DND 1448 Farm: Weber et a1 #1-26 DTR 1567 PN: 32581 A20 2804 Sec. 26, T18, R48 CLN 3373 SE-SW-SW ' 81. 917 - TD 3401 (SDR) Operator: Hunt DND 1397 Farm: Gooding-Douthat #1-24 PN: 32683 A20 2988 Sec. 24, T18, 858 NW-SW-SE El. 938 - TD 3584 (SDR) 104 Washtenaw County (continued) Operator: Cities Service DND 1470 Farm: Brassow PN: 29964 Sec. 28, T18, T58 NE-NE-SW 81. 959 - TD 3460 (GRL) DTR 1567 A2C 2933 Operator: Sun DND 1558 CIN5 3536 TRN 4185 Farm: Nixon #1 DTR 1650 CIN4 3606 BLR 4624 PN: 19371 See. 33, T18, 858 CIN3 3666 CIN2 3781 SW-SW-NW 3386 CIN1 3824 81. 952 - TD 4998 (GRL) CAT 3406 UTC 3896 Operator: Hunt DND 1344 Farm: Whitmore Lake Devel. DTR 1482 Goff #1-8 PN: 32734 A2C 3074 See. 8, T18,R68 SW-NE-NE 81. 922 - TD 3630 (SDR) Operator: Hunt Farm: Vose et a1 #1-26 PN: 32704 Sec. 26, T18, 868 SE-NW-SE 81. 979 - TD 3480 (SDR) DND 1173- DTR 1316 A2C 2934 Operator: Taggart DND 707 CIN5 3636 TRN 4247 Farm: LeMaster #1 PN: 18796 Sec. 1, T18, 878 NW-SE-SE . 81. 962 - TD 4397 (SDR) CAT 3528 Operator: Taggart DND 695 CIN5 3630 TRN 4235 Farm: LeMaster #5 PN: 19039 Sec. 1, T18, R78 NE-SW-SE El. 954 - TD 4468 (SDR) CAT 3510 UTC 3950 Operator: Consumers Power 735 CIN5 3667 TRN 4274 Farm: Sprenger et a1 #1 PN: 21142 A20. 2998 Sec. 1, Tls, R78 SWBSW-NW' CLN '3515 81. 986 - TD 4701 (SDR) CAT 3557 105 Washtenaw County (continued) Operator: Consumers Power DND 728 CIN5 3558 TRN 4105 Farm: Buers #1 PN: 19240 A20 2910 Sec. 1, T18, R78 NE-NW-SW 3430 81. 977 - TD 4519 (SDR) CAT 3462 Operator: Consumers Power DND 1562 CIN5 3676 TRN 4274 Farm: Sprenger et a1 #1 DTR 1685 CIN4 3716 PN: 19088 A2C 3010 CIN3 3787 Sec. 1, T18, 87E A28 3170 CIN2 3884 ss—swenw .3. =- 3516 CIN1 3908 81.988 - TD 4478 (GRL) UTC 3988 Operator: Albers Farm: Merritt #1 PN: 19010 Sec. 1, T18, R78 SE-NW-NW A2C 3055 A28 3231 El. 982 - TD 4881 (SDR) CAT 3630 CIN 5 3750 TRN 4362 BLR 4769 Operator: Taggart DND 825 CIN5 3443 TRN 4040 Farm: Rider PN: 19089 Sec. 2, T18, R78 NW-SE-SE 81. 974 - TD 4549 (SDR) CAT 3320 BLR 4485 Operator: Consumers Power DND 1456 CIN5 3536 TRN 4085 Farm: Cons. Power #105 DTR 1576 CIN4 3579 PN: 18949 See. 2, T18, R78 A20 2897 A28 3058 CIN3 3626 CIN2 3730 SE-SE-NE CLN 3380 CIN1 3750 El. 984 - TD 4551 (GRL) CAT 3416 UTC .3814 Operator: Rovsek DND 1049 CIN5 3739 Farm: Bulman #1 PN: 25759 A2C 3052 Sec. 2, T18, R78 NE-NW-SW 3581 El. 996 - TD 5377 (SDR) UTC 4054 Operator: Consumers Power DND 745 CIN5 3495 Farm: Dolan #1 PN: 19064 A2C 2830 Sec. 2, T18, R78 NE-NE-SE CLN 3312 El. 983 - TD 4508 (SDR) CAT 3367' TRN 4347 BLR 4806 GLW 5252 TRM 5258 TRN 4038 BLR 4474 106 Washtenaw County (continued) Operator: Consumers Power DND 849 CIN5 3525 4116 Farm: Fitzgerald #2 PN: 24318 A20 2750 See. 2, T18, R78 NE-SE-NW CLN 3374 El. 1013 - TD 4430 (SDR) UTC 3828 Operator: Rovsek DND 1038 CIN5 3768 TRN 4402 Farm: Engel #1-A ,DTR 1131 CIN4 3816 BLR 4860 PN: 23743 A2C 3061 CIN3 3892 GLW 5270 Sec. 3,T18, R78 A28 3254 CIN2 3992 PDC 5275 NW-NW-SE CLN 3610 CIN1 4012 81. 1040 - TD 5317 (GRL) CAT 3640 UTC 4100 Operator: Flemming DND 1126 CIN5 3811 Farm: Taylor #1 1 PN: 19342 Sec. 3, T18, 878 SE-NW-NE TRN 4424 BLR 4875 El. 1007 - TD 5200 (SDR) CAT 3695 CIN5 3825 TRN 4436 Operator: Zellman DND 1236 Farm: Baumgardner #1 PN: 19499 Sec. 8, T18, R78 NW-SE-NW CLN 3665 81. 945 - TD 4706 (SDR) Operator: Albers DND 1059 CIN5 3732 TRN 4340 Farm: Isac PN: 19820 Sec. 11, T18, R78 A20 3020 NW-NE-NW 3570 81. 953 - TD 4752 (SDR) CAT 3601 Operator: Collin DND 839 CIN5 3463 Farm: Brummel et a1 #1 PN 19254 A2C 2811 Sec. 12, T18, R78 SE-NW-SE 81. 937 - TD 4284 (SDR) CAT 3350 Operator: Consumers Power DND 668 CIN5 3300 Farm: Haray et al #1 PN: 18841 Sec. 12, T18, 878 W-NW-NE 81. 940 - TD 4445 (SDR) CAT 3196 TRN 4078 BLR 4528 TRN 3892 BLR 4300 107 Washtenaw County (contined) Operator: Consumers Power CIN5 3345 TRN 3922 Farm: Butler et a1 #2 PN: 19166 A20 2648 Sec. 12, T18, 878 NE-SE-NE 81. 939 - TD 4564 (SDR) Operator: McClure DND 1007 CIN5 3564 TRN 4168 Farm: Noble #1 PN: 19121 Sec. 13, T18, R78 SW-SE-SW DTR 1130 A2C 2883 'AZE 3092 CLN 3408 81. 875 - TD 4684 (SDR) CAT 3434 Operator: Union Drlg. DND 1143 CIN5 3710 TRN 4318 Farm: Voss Comm. #1 PN: 10141 See. 16, T18, 878 SW-NW-NE 3553 81. 915 - TD 6410 .(SDR) CAT 3580 Operator: West Farm: Rogers #1 PN: 18929 ‘ Sec. 23, T18, 878 DND 1024 DTR 1162 A20 2288 SE-SE-NW 3396 81. 883 - TD 4559 (SDR) TRN 4153 Operator: Chamness DND 1009 CIN5 3520' TRN 4117 Farm: Troy Comm. #1 Sec. 27, T 18, 878 NE-SE-NE 3354 81. 886 - TD 6094 (SDR) CAT 3382 Operator: Johnson 6 Pew DND 1364 CIN5 3344 TRN 4020 Farm: Mohrlock-Shears Com. DTR 1480 CIN4 3423 BLR 4430 PN: 19751 Sec. 14, T28, 83E A20 2663 A28 2753 #1 CIN3 3476 CIN2 3604 CIN1 3654 NW-NW-SW 3214 UTC 3728 El. 993 - TD 4659 (GRL) CAT 3232 Operator: Peake DND 1272 CIN5 3227 TRN 3898 Farm: Goers #1 DTR 1390 CIN4 3303 BLR 4319 PN: 24396 A2C 2538 CIN3 3360 GLW 4698 Sec. 25, T28, 83E A28 2618 CIN2 3478 PDC 4710 NW-SW-NE - 3091 CIN1 3530 El. 939 - TD 4758 (GRL) CAT 3112 UTC 3596 108 Washtenaw County (continued) Operator: DeGenther DND 1237 CIN5 3164 3814 Farm: Wenk #1 PN: 19891 Sec. 33, T28, 848 SE-SW-SW CLN 3020 81. 918 - TD 4758 (SDR) CAT 3051 BLR 4236 GLW 4615 PDC 4625 Operator: Worsley DND 1045 CIN5 3067 TRN 3712 Farm: Miller 6Holtz #1 PN: 19202 Sec. 28, T28, 858 NE-SW-NW 81. 890 - TD 4215 (SDR) CAT 2960 Operator: Colvin 6 Assoc. DND 808 CIN5 3205 TRN 3798 Farm: Meinzinger #1 DTR 930 PN: 11341 Sec.12, T28, R78 SE-NE-NW CLN 3057 El. 818 - TD 5692 (SDR) CAT 3090 Operator: Rovsek DND 644 CIN5 3045 Farm: Jorgensen #1 PN: 25714 . Sec. 26, T23, R78 ‘ DTR 749 A20 2367 A28 2544 BLR 4235 GLW 4689 PDC 4696 TRN 3793 BLR 4332 CIN4 3234 CIN3 3280 GLW 4867 CIN2 3427 4874 NE-NW-NE CLN 2873 CIN1 3447 81. 782 - TD 5002 (GRL) CAT 2908 UTC 3510 Operator: Ypsilanti Dev.Co.DND 714 CIN5 2956 TRN 3540 Farm: Voorhees #1 PN: 3828 Sec. 32, T28, R78 NE-NE-SE El. 788 - TD 3822 (SDR) CAT 2816 Operator: Lima DND 714 CIN5 2956 TRN 3540 Farm: Voorhees #1 PN: 3828 Sec. 32, T28, R78 NE-NE-SE El. 788 - TD 2786 (SDR) CAT 2816 Operator: Sun DND 1322 CIN5 3192 Farm: Horning #1 PN: 18701. ‘ Sec. 1, T38, 838 NE-NE-NE DTR 1430 A2C 2590 A28 2685 CLN 3057 81. 924 - TD 3256 (GRL) CAT 3084 109 Washtenaw County (continued) Operator: Petro-Min DND 1844 CIN5 3460 Farm: Whitaker et a1 #1 PN: 28911 A20 2734 Sec. 20, T38 838 NE-SE-NE' CAT 3320 81. 995 — TD 5275 (SDR) UTC 3842 Operator: NY Petro-Min DND 1812 CIN5 3428 Farm: Widmayer #1-A PN: 28990 A20 2702 Sec. 21, T18, R38 W-SE-SE 81. 980 - TD 5241 (GRL) UTC 3808 Operator: Bell 6 Gault DND 1759 CIN5 3432 Farm: Widmayer #1 PN: 28655 A2C 2732 Sec. 21, T38, R38 C-SE-SE 3293 81. 978 - TD 5206 (GRL) UTC 3815 TRN 4152 BLR 4528 GLW 4897 PDC 4908 TRN 4121 BLR 4515 GLW 4857 PDC 4861 TRN 4127 BLR 4504 GLW 4862 PDC 4867 Operator: Mic-McClure DND 1238 CIN5 3112 TRN 3785 Farm: Eisemann #1 DTR 1390 CIN4 3187 BLR 4207 PN: 21903 A2C 2460 CIN3 3240 Sec. 6, T38, R48 AlC 2521 CIN2 3354 C-NW-SE 2974 CIN1 3406 81. 967 - TD4392 (GRL) CAT 2998 UTC 3474 Operator: The Moco Farm: Kuhl #1 PN: 21309 Sec. 8, T38, 848 SWhSW-SE DND 1252 DTR 1370 A2C 2490 A10 2551 3003 CIN5 3130 TRN 3802 81. 945 - TD 4271 (GRL) CAT 3025 UTC 3496 Operator: Rovsek Farm: Grau #1 PN: 27472 Sec. 8, T38, 84E DND 1213 DTR 1334 A20 2433 AlC 2496 CIN5 3087 TRN 3762 CIN4 3158 BLR 4178 CIN3 3217 GLW 4555 CIN2 3328 PDC 4563 SW-SE-NE CLN 2953 CIN1 3379 81. 957 - TD 4628 (GRL) CAT 2977 UTC 3450 Operator: Maj eske DND 1218 CIN5 3119 TRN 3765 Farm: Niehaus et ux #1 PN: 28782 Sec. 8, T38, R48 SW-NE-SW CLN 2993 81. 948 - TD 3977 (SDR) 110 Washtenaw County (continued) Operator: Sun DND 1272 CIN5 3185 TRN 3860 Farm: Haab-Grau-Buss #1 DTR 1406 CIN4 3253 PN: 19608 A2C 2525 CIN3 3303 Sec. 8, T38, R48 AlC 2628 CIN2 3428 SW-NW-SW 3056 CIN1 3485 81. 942 - TD 4155 (GRL) CAT 3079 UTC 3554 Operator: Sun DND 1206 CIN5 3009 TRN 3669 Farm: Meyer #1 DTR 1328 CIN4 3082 BLR 4082 PN: 25607 A2C 2341 CIN3 3136 GLW 4457 Sec. 16, T38, 84E AlC 2393 CIN2 3242 PDC 4465 NW-SE-SE CLN 2877 CIN1 3294 81. 974 - TD 4524 (GRL) CAT 2897 UTC 3368 Operator: Majeske DND 1524 'CINS 3315 TRN 4001 Farm: DuRussel #1 DTR 1646 CIN4 3390 PN: 28534 AZC 2765 CIN3 3458 Sec. 17, T38, R48 NGR 2822 CIN2 3517 SW-NW-NW CLN 3237 CIN1 3616 81. 935 - TD 4500(GRL) CAT 3259 UTC 3694 Operator: Majeske DND 1730 CIN5 3443 Farm: DuRussel #2 PN: 28596 Sec. 18, T38, 848 ‘ SE-SE-SW CLN 3308 81. 947 - TD 4682 (SDR) Operator: Majeske DND 1689 Farm: DuRussel #3 PN: 28726 Sec. 18, T38, R48 NE-NW-SE 3288 81. 931 - TD 4655 (SDR) 4128 BLR 4530 TRN .4118 BLR 4538 Operator: Sun DND 1252 CIN5 2991 TRN 3642 Farm: Hoener #1 DTR 1364 CIN4 3048 BLR 4052 PN: 27099 A2C 2334 CIN3 3111 GLW 4429 Sec. 21, T38, R48 AlC 2384 CIN2 3216 TRM 4444 NE-SW-SE 2864 CIN1 3267 81. 1002 - TD 4502 (GRL) CAT 2884 UTC 3339 Opr:Washtenaw Co.8d.Comm. DND 1120 Farm: WCRC #2 PN: Brine A20 2300 Sec. 23, T38, R48 NW-NE-SW ’ 2768 81. 971 - TD 2772 (SDR) Washtenaw County (continued) Operator: Texaco Farm: Kuebler #1 PN: 27649 Sec. 28, T38, R5E SE-NW-SW 111 DND 740 DTR '857 AZC 1911 AlC 1963 CLN 2454 E1. 896 - TD 2503 (GRL) CAT 2468 Operator: Rovsek DND 357 CIN5 2486 Farm: Wabash RR #1 DTR 464 CIN4 2540 PN: 25482 AZC 1796 CIN3 2588 TRN 3076 BLR 3472 3876 Sec. 24, T35, R7E A1C 1864 CIN2 2682 TRM 3887 SE SE NW 2350 CIN1 2714 E1. 694 - TD 3973 (GRL) CAT 2376 UTC 2771 Operator: Bayley Products DND 1702 CIN5 3227 3928 Farm: Hess #1 DTR 1800 CIN4 3310 BLR 4256 PN: 28705 AZC 2542 CIN3 3350 GLW 4614 Sec. 8. T48, R3E AlC 2617 CIN2 3462 PDC 4618 NW NW SW 3104 CIN1 3537 E1. 975 - TD 4663 (GRL) CAT 3126' UTC 3609 Operator: Trolz Farm: Trolz PN: 25950 Sec. 20, T48, R32 NW-SE-SW DND 1638 1772 A20 2560 A10 2620 3029 E1. 1025 - TD 4640 (GRL) CAT 3040 CIN5 CIN4 CIN3 CIN2 CIN1 UTC 3150 3200 3289 3408 3448 3522 TRN 3846 BLR 4209 GLW 4558 PDC 4570 Operator: Michigan Oil DND 1181 CIN5 2810 TRN 3475 Farm: Gierbach PN: 21249 A2C 2180 Sec. 21, T48, R4E NW-NW-NW CLN 2698 El. 854 - TD 3637 (SDR) Operator: Besko DND 837 CIN5 2476 TRN 3160 Farm: Allen #l-A DTR 975 CIN4 2533 PN: 26204 A2C 1878 CIN3 2595 Sec. 27, T48, R4E AlC 1938 CIN2 2710 BLR 3536 GLW 3889 TRM 3902 SW-SW-NW 5 CLN 2360 CIN1 2758 El. 864 - TD 4039 (GRL) CAT 2374 UTC 2832 Operator: Taggart DND 1170 CIN5 2845 TRN 3397 Farm: Curtis #1 DTR 1265 PN: 18777 Sec. 28, T4S, R4E C-SW-SW CLN 2710 E1. 859 - TD 3806 (SDR) 112 Washtenaw County (continued) Operator: Peake DND 932 CIN5 2607 Farm: Anglemeyre #1 DTR 1080 CIN4 2667 TRN 3322 BLR 3770 PN: 22349 A2C 1956 CIN3 2724 Sec. 34, T48, R4E A1C 2006 CIN2 2840 NE-NW-NW CLN 2362 CIN1 2890 E1. 918 - TD 3939 (GRL) CAT 2413 UTC 2969 Operator: Peake & Harvey DND 896 CIN5 2444 TRN 3100 Farm: Bohnenstiehl #1 DTR 1020 CIN4 2504 BLR 3491 PN: 23380 A2C 1846 CIN3 2574 GLW 3862 Sec. 34, T48, R4E AlC 1902 CIN2 2664 PDC 3878 SW-NW-NE CLN 2330 CIN1 2710 El. 919 - TD 3951 (GRL) CAT 2354 UTC 2786 Operator: Sun DND 650 CIN5 2401 3046 Farm: Filsinger #1 DTR 822 PN: 19074 Sec.10,T4S, R5E NE-NE-SW 2268 El. 859 - TD 3435 (GRL) CAT 2300 Operator: Good & Good DND 533 CIN5 2301 Farm: Marion GG-l DTR 670 CIN4 2360 PN: 23921 A2C 1670 CIN3 2412 Sec. 14, T48, R5E ‘ AZE 1729 CIN2 2514 NW-NW-SE 2175 CIN1 2561 El. 795 - TD 3861 (GRL) CAT 2199 UTC 2635 TRN 2945 BLR 3351 GLW 3756 3764 Operator: Good 5 Good DND 578 CIN5 2325 TRN 2970 Farm: Schowacko GG-l DTR 727 CIN4 2384 BLR 3375 PN: 24714 . Sec. 16, T48, R5E A2C 1727 AlC 1768 CIN3 2440 GLW 3775 CIN2 2546 PDC 3784 NE-NE-NW 2200 CIN1 2590 El. 864 - TD 3856 (GRL) CAT 2226 UTC 2663 Operator: Leonard DND 620 CIN5 2334 2985 Farm: Schwocho #1 DTR 760 CIN4 2390 BLR 3394 PN: 26856 A2C 1723 CIN3 2442 GLW 3788 Sec. 17, T48, R58 AlC 1782 CIN2 2551 PDC 3802 SE-SE-SE 2206 CIN1 2595 El. 862 - TD 3934 (GRL) CAT 2230 UTC 2672 Operator: McClure DND 690 CIN5 2358 TRN 2969 Farm: Lindsley #1 DTR 802 PN: 19778 Sec. 32, T48, RSE NW-SE-NW El. 875 - TD 3475 (SDR) 113 Washtenaw County (continued) Operator: Basin DND 375 CIN5 2132 TRN 2757 Farm: Wanty #1 DTR 480 CIN4 2176 BLR 3154 PN: 22292 A2C 1474 CIN3 2226 GDW 3520 Sec. 28, T48, R6E AlC 1539 CIN2 2350 PDC 3533 NE-NE-SE CLN 2006 CIN1 2370 El. 721 - TD 3637 (GRL) CAT 2026 UTC 2444 Operator: Violette DND -- CIN5 1945 TRN 2545 Farm: Sanderson #1 DTR 70 PN:930 Sec. 26, T4S, R7E N-S-SW El. 674 - TD 2680 (SDR) CAT 1845 Operator: Hayes Farm: Hayes #1 PN: 26569 Sec. 2, T18, R83 SW-NE-SW El. 806 - TD 3325 (SDR) Operator: Collin Farm: Whipple PN: 18966 Sec. 4, T18, R8E ' ‘ Wayne County DND 603 DTR 743 AZC 2798 A2E 2946 CLN 3308 ' DND 725 CIN5 3666 TRN 4303 DTR 800 A20 3020 NE-NE-NW CLN 3542 El. 951 - TD 4695 (SDR) CAT 3575 UTC 3940 Operator: McClure ‘DND 728 CIN5 3711 TRN 4300 Farm: Howell et a1 #1 DTR 880 PN: 18982 A2C 3015 Sec. 5, T18, R8E NE-NE-NW CLN 3540 E1. 964 - TD 4772 (SDR) UTC 3865 Operator: Sun Oil DND 700 CIN5 3617 TRN 4225 Farm: Maybury Sanatorium#l DTR 854 CIN4 3658 PN: 19348 A2C 2986 CIN3 3753 Sec. 6, T18, R8E A2E 3148 CIN2 3813 SE-SE-SW CLN 3462 CIN1 3837 E1. 950 - TD 4720 (GRL) CAT 3501 UTC 3925 Operator: Taggart DND 735 CIN5 3694 TRN 4299 Farm: Dickinson et a1 #1 PN: 18995 Sec. 6, T1S, R8E NE-NW-SW E1. 963 - TD 4678 (son) CLN 3542 CAT 3585 114 Wayne County (continued) Operator: Consumers Power DND 648 CIN5 3264 TRN 3866 Farm: Terrill et ux #1 DTR 778 CIN4 3308 BLR 4312 PN: 19201 A2C 2620 CIN3 3390 Sec. 7, T18, R83 A23 2799 CIN2 3456 SWANE-SW 3116 CIN1 3478 31. 919 - TD 4491 (GRL) CAT 3165 UTC 3571 Operator: Union DND 650 CIN5 3525 TRN 4137 Farm: Ansell. DTR 780 PN: 18897 Sec. 7, T18, R83 SE—NE-NW 3370. 31. 921 - TD 4521 (SDR) CAT 3410 Operator: Consumers Power DND 594 TRN 3975 Farm: Thomson #1 PN: 19241 AZC 2725 Sec. 8,TlS,R83 SW;SW¥SW 31. 862 - TD 4142 (SDR) 3234 Operator: Woodson DND 624 CIN5 3456 TRN 4075 Farm: Lucier #1 PN: 19665 See. 9,TlS, R83 SWBSW¥SW A2C 2788 A23 2970 ‘3309 31. 860 - TD 4590 (SDR) CAT 3344 BLR 4519 Operator: Consumers Power DND 645 CIN5 3318 TRN 3868 Farm: Wayne Co. #1 PN: 19421 Sec. 16, T18, R83 NE-SWBSW A2C 2692 A23 2858 31. 889 - TD 4439 (SDR) CAT 3215 UTC 3564 BLR 4293 Operator: Consumers Power DND 606 CIN5 3295 TRN 3825 Farm: Wayne Co. #2 PN: 19915 A2C 2630 Sec.16, T18, R83 SE-SE-SW CLN 3129 31. 865 - TD 4380 (SDR) CAT 3170 Operator: Consumers Power DND 593 CIN5 3358 TRN 3955 Farm: Wayne Co. #3 PN: 20157 Sec.16,T1$, R83 SWBSE-SE DTR 775 AZC 2701 A23 2868 3201 El. 860 - TD 4287 (SDR) CAT 3244 UTC 3632 115 Wayne County (continued) Operator: Consumers Power DND 616 CIN5 3256 TRN 3857 Farm: Det.Hse of Correction#1 DTR750 BLR 4285 PN: 19362 A20 2604 Sec. 17,T18, R83 NE-SW‘NW CLN 3116 El. 847 - TD 4349 (SDR) UTC 3570 Operator: Consumers Power DND 708 CIN5 3320 TRN 3946 Farm:Det.Hse of.Cor. #2 DTR 840 PN: 19432 ‘ ' A2C 2668 Sec.17, T18, R83 SW‘NE-SW CLN 3178 31. 838 - TD 4465 (SDR) CAT 3215 UTC 3650 Operator: Consumers Power DND 664 CIN5 3255 TRN 3550 Farm: Det. Hse. of Cor. #3 DTR 797 PN: 19496 A2C 2665 Sec. 17, T18, 383 A23 2840 SW¥N3-SE CLN 3120 El. 900 - TD 5483 (SDR) CAT 3160 UTC 3550 BLR 4282 cm 477:. PDC 4782 Operator: Consumers Power DND 594 CIN5 3264 TRN 3867 Farm: Det. Hse. of Cor. #4 DTR 728 ' PN: 19730 A2C 2639 Sec. 17, T18,R83 NW-SE-NW 31. 841 - TD 4498 (SDR) CAT 3168 UTC 3580 Operator: Taggart DND 660 CIN5 3289 TRN 3885 Farm: George et a1 #1 DTR 815 PN: 19329 A20 2614 ' Sec. 18, T18, R83 SW-NE-NE A23 2800 CLN 3126 BLR 4339 GLW 4822 . PDC 4829 31. 861 - TD 5130 (SDR) CAT 3158 UTC 3591 Operator: Consumers Power DND 661 CIN5 3234 TRN 3832 Farm: Forbes #1 PN: 19541 Sec. 21, T18, R83 DTR 789 A2C 2589 NE-NW-NW CLN 3080 81. 879 -TD.4429 (SDR) CAT 3122 , UTC 3565 BLR 4267 Operator: Consumers Power DND 594 CIN5 3197 TRN 3762 Farm: Millard et a1 #1 BLR 4210 PN: 19578 A20 2552 Sec. 21, T18, R83 A23 2727 SW-NE-NE CLN 3039 31. 854 - TD 4337 (SDR) CAT 3085 UTC 3457 116 Wayne County (continued) Operator: Consumers Power DND 597 CIN5 3176 TRN 3774 Farm: CPCO Elvidge #1 DTR 707 CIN4 3206 PN: 18946 A20 2533 CIN3 3290 Sec. 22, T18, R83 A23 2708 CIN2 3364 NW—NE-SW 3034 CIN1 3392 El. 781 - TD 3806 (GRL) CAT 3066 UTC 3475 Operator: Consumers Power DND 605 CIN5 3176 3774 Farm: Elvidge #1 PN: 18946 Sec. 22, T18, R83 NW-NE-SW DTR 717 A2C 2522 A23 2714 3035 31. 809 - TD 4363 (SDR) CAT 3072 UTC 3434 BLR 4212 Operator: Consumers Power DND 575 CIN5 3278 3841 Farm: Webber #1 BLR 4244 PN: 19936 AZC 2615 Sec. 22, T18, R83 C-NW- 31. 826 — TD 4285 (SDR) CAT 3175 UTC 3570 Operator: Consumers Power DND 542 CIN5 3227 TRN 3813 Farm: Raetzal Comm. #1 BLR 4186 PN: 19907 Sec. 22, T18, R83 'N-N-SE 31. 787 - TD 4240 (SDR) AZC 2581 3093 CAT 3115 Operator: Consumers Power DND 574 CIN5 3210 TRN 3771 Farm: CPCO #208 680 CIN4 3230 BLR 4179 PN: 25538 A2C 2562 CIN3 3316 Sec. 22, T18, R83 A23 2740 CIN2 3372 NW‘NW-SE 31. 800 - TD 4210 (GRL) 3064 3098 CIN1 3390 UTC 3480 Operator: Peake DND 475 CIN5 3132 TRN 3729 Farm: Wayne Co. #1 DTR 607 BLR 4156 PN: 21682 Sec. 23, T18, R83 SWeNW-SE A2C 2484 A23 2646 CLN 2982 31. 713 - TD 4506 (SDR) CAT 3005 Operator: Albers DND 544 CIN5 3176 TRN 3717 Farm: C&0 RR #2 PN: 20794 Sec. 23, T18, R83 675 A2C 2530 SW‘NW‘SW 3016 31. 770 - TD 4257 (SDR) CAT 3050 BLR 4128 117 Wayne County (continued) Operator: Consumers Power DND 508 CIN5 3099 Farm: Burroughs Corp.#4 .DTR 641 PN: 26024 Sec. 24, T18, R83 SE-SE-SW A2C 2482 A23 2636 2960 31. 729 - TD 4305 (SDR) UTC 3408 3702 BLR 4146 Operator: Peake Farm: Zittel #1 DND 530 CIN5 3056 TRN 3656 631 CIN4 3095 BLR 4096 PN: 22978 A2C 2437 CIN3 3182 Sec. 25, T18, R83 A23 2618 CIN2 3253 SWHSWBNE 2927 CIN1 3279 31. 717 - TD 4369 (GRL) CAT 2957 UTC 3365 Operator: Peake DND 498 CIN5 3024 3620 Farm: Wayne Co.Rd.Com.#4 DTR 613 CIN4 3054 BLR 4064 PN: 23638 A2C 1196 CIN3 3156 Sec. 25, T18, R83 A23 1362 CIN2 3234 NW-SE-SE CLN 2886 CIN1 3256 31. 690 'TD 4118 (GRL) CAT 2915 UTC 3322 Operator: Peake DND 467 CIN5 3028 3624 Farm: Wayne Co.Rd.Com.#2 DTR 590 CIN4 3061 BLR 4030 PN: 22341 A2C 2395 CIN3 3149 Sec. 26, T18, R83 A23 2566 CIN2 3218 NW—NE-NE 2887 CIN1 3244 El. 683 - TD 4123 (GRL) CAT 2920 UTC 3330 Operator: Consumers Power DND 484 CIN5 3006 Farm: Holman #1 DTR 604 CIN4 3028 TRN 3597 BLR 4036 PN: 26016 A2C 2393 CIN3 3110 Sec. 30,T13, R93 A23 2570 CIN2 3183 SW-SW¥SW 2864 CIN1 3215 31. 706 - TD 4187 (GRL) CAT 2895 UTC 3296 Operator: Peake DND 426 CIN5 2940 3525 Farm: Wayne Co.Rd.Com.#3 DTR 546 CIN4 2959 BLR 3940 PN: 23362 A2C 2310 CIN3 3041 Sec. 32, T18, R93 A23 2483 CIN2 3111 NWereNW ' 2797 CIN1 3131 El. 654 - TD 3986 (GRL) CAT 2827 UTC 3228 Operator: Spidel DND 868 CIN5 3150 TRN 3758 Farm: Spicer #1 PN: 19634 AZC 2532 Sec. 6, T28, R83 SW‘NW-SW 31. 795 - TD 4115(SDR) 118 Wayne County (continued) Operator: Petrolia DND 736 CIN 5 3134 TRN 3723 Farm: Fowler ' PN: 19379 Sec. 7, T28, R83 NW-SE-NW A2C 2495 A23 2673 CLN 3002 31. 791 - TD 4252 (SDR) CAT 3015 Operator: Darke Bros. DND 220 CIN5 2660 TRN 3240 Farm: Truesdell #1 PN: 3813 Sec.25, T25, R83 SW-SW-SW CLN 2520 31. 658 - TD 3600 (SDR) CAT 2540 Operator: None listed DND 125 CIN5 2490 TRN 3065 Farm: Ford #1 DTR 215 PN: None listed Sec. 22, T28, T103 NE-NW;SE 31. 612 - TD 3960 (SDR) CAT 2355 TRM 3940 Operator: Panhandle Eastern DND - CIN5 2413 ' TRN 2990 Farm: Fomoco #1 DTR 195 CIN4 2422 BLR 3400 PN: 25560 AZC 1780 CIN3 2473 GLW 3866 Sec. 19, T28, T113 A23 1932 CIN2 2546 TRM§3882 W-SE CLN 2261 CIN1 2590 ' 31. 588 - TD 3917 (GRL) CAT 2294 UTC 2695 Operator: Leatherman TRN 2830 Farm: Scheffler PN: 3265 Sec. 26, T38, R83 SE-SW-NE 31. 667 - TD 2960 (SDR) Operator: Lancy & Churchill CIN5 2000 TRN 2500 Farm: Bcorse Twp. #1 PN: None Sec. 34, T3S, R113 W 31. 593 - TD 2610 (SDR) Operator: Bonanza Oil DND - CIN5 1960 TRN 2483 Farm: DeRoy #1 PN: 5830 Sec. 22, T48, R83 S-SW-SE 31. 642 - TD 2560 (SDR) CAT 1808 119 Wayne County (continued) Operator: Uhl DND -- CIN5 1887 TRN 2425 Farm: 'Kuehl #1 DTR 65 PN: 19214 Sec. 26, T48, R83 NW-NW-SW CLN 1715 31. 637 - TD 2827 (SDR) CAT 1734 Opr: Pontchartrain Petrol. DND -- CIN5 1810 . TRN 2440 Farm: Boynton #1 PN: 3701 Sec. 27, T48, R83 NW-SE-NE 31. 640 - TD 2566 (SDR) Operator: McClure DND -- CIN5 1961 TRN 2550 Farm: Fritsch et a1 #1 DTR 87 PN: 19260 Sec. 1, T48, R93 N3-N3-83 CLN 1827 31. 621 - TD 2885 (SDR) CAT 1838 Operator: Voorhees DND -- CIN5 2090 TRN 2640 Farm: Poet #1 PN: 10211 . , Sec. 6, T43, R93 N3-SW‘SW 31. 642 - TD 2955 (SDR) Operator: Sun DND - CIN5 1975 TRN 2564 Farm: Haener et a1 #1 DTR 79 PN: 11746 A20 1330 Sec. 9, T48, R93 NE-SWeSW CLN 1848 31. 632 - TD 2942 (SDR) CAT 1865 Operator: Colvin Assoc. DND -- CIN5 1875 TRN 2445 Farm: Theisan #1 PN: 10430 See. 16, T48, R93 N3-S3-33 ~ BLR 2860 GLW 3300 31. 625 - TD 4028 (SDR) CAT 1715 UTC 2280 Operator: MacCallum DND 76 CIN5 1980 TRN 2515 Farm: Gumtow #1 DTR 135 PN: 10877 See. 17, T48, R93 C-SW-NW CLN 1810 31. 633 - TD 2610 (SDR) UTC 2345 120 Wayne County (continued) Operator: Acme DND CIN5 1890 TRN 2564 Farm: Dolbozq #1 PN: 10099 Sec. 18, T4S, R93 NW-NE-NE El. 635 - TD 2800 (SDR) CAT Operator: Voorhees DND CIN5 1880 TRN 2526 Farm: Otter #1 PN: 9546 Sec. 18, T4S, R93 NE—SW—NE El. 637 - TD 2733 (SDR) Operator: Marathon DND CIN5 1752 TRN 2361 Farm: Marathon #1 DTR 47 CIN4 1774 BLR 2758 PN: BD #146 A2C 1155 CIN3 1814 GLW 3193 Sec. 22, T48, R103 A23 1249 CIN2" 1925 PDC 3206 N-SE CLN 1620 CIN1 1949 El. 609 - TD 3752 (GRL) CAT 1636 UTC 12015 Opr: Penn.Salt Mfg.Co.#14 Farm: None PN: None Sec. 6, T4S, R113 SE DND DTR CIN5 1910 TRN 2504 31. 600 - TD 3368 (SDR) CAT 1794 HIC HIGRN STATE UIN V. 11111 1999111111 11|11111|1|1||11119119|111|Es