1988-04-11_PERMIT FILE - C1981008A (6)

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Hole Number: 882E Associated Wells: None Date Drilled: 9/5-6/87 Location: T46N, R15W Drilled By: Bobby Holland SA, NWk, Sec. 6 Logged By: Cary Wendt Coordinates: N 598,4501 Elevation: 5684' E 1 ,117,7461 Depth Increment Description of Strata/Lithologic Unit Designation (feet) 75.8 - 82.4 SANDSTONE, light gray, very hard, NE, coarse grained, soft gray shale streaks at 78.1 - 78.2 and 78.95 - 79.08, mottled light and dark gray at 75.8 - 77.7, slightly hard to hard gray sandy shale at 80.15 - 80.55 and 81.60 - 82.40, few pyrite nodules at 75.8 - 77.7, many pyrite nodules and streaks at 81 .4 - 82.4, Unit 1 82.4 - 84.1 SHALE, very dark gray to black, slightly harp, NE, few thin pyrite streaks, Unit 2 84.1 - 84.6 COAL, upper Dakota seam, high pyrite density at the upper and lower contacts, Unit 2 84.6 - 85.2 SHALE, black, soft to slightly hard, NE, carbonaceous, Unit 2 85.2 - 86.2 SANDSTONE, shaley, brownish gray, slightly hard, NE, common pyrite streaks, Unit 3 86.2 - 87.3 SANDSTONE, light gray, hard, NE, 5 percent black organic lamella, few pyrite nodules, Unit 3 87.3 - 90.2 SHALE, dark gray, slightly hard to soft, NE, light gray sandy shale streak at 88.10 - 88.25, Unit 3 90.2 - 91 .0 SANDSTONE, light gray, very hard, NE, Unit 3 91 .0 - 91 .9 SHALE, sandy, dark gray, slightly hard to hard, NE, Unit 3 91 .9 - 93.5 SANDSTONE, mottled light gray and gray, hard to very hard, NE, Unit 3 93.5 - 95.1 SANDSTONE, shaley, gray to dark gray, hard, NE, Unit 3 95.1 - 95.6 SHALE, very dark gray, slightly hard, NE, Unit 4 95.6 - 95.9 SILTSTONE, sandy, light brownish gray, soft, NE, Unit 4 95.9 - 96.6 SHALE, very dark gray, slightly hard, NE, Unit 4 96.6 - 96.7 SILTSTONE, sandy, light brownish gray, soft, NE, Unit 4 96.7 - 98.1 SANDSTONE, mottled light gray and gray, hard, NE, Unit 4 6-1-92 Revised 04/11/88