15-007-00536; Gudeman 1; Company: Aurora and Berwick Drilling; Service Log No. 4627; 12/19/1954 
T35S R10W, Sec. 10; C NW NW NE; 4950 North, 2310 West, from SE corner 
830; Wellington Shale
830; 1093; dominantly gray, anhydritic sh.
1093; 1190; dominantly gray, anhydritic sh. with scat. halite casts
1190; Wellington Salt
1190; 1570; abundant halite casts in dominantly gray, anhydritic sh.
1570; 1590; white and gray anhydrite
1590; 1592; red & gray sh
1592; 1598; white and gray anhydrite
1598; 1604; red & gray sh
1604; 1608; white and gray anhydrite
1608; 1615; red & gray sh
1615; 1630; white and gray anhydrite
1630; 1634; red & gray sh
1634; 1640; white and gray anhydrite
1640; 1645; red & gray sh
1645; 1650; white and gray anhydrite
1650; 1655; red & gray sh
1655; 1680; white and gray anhydrite
1680; 1685; red & gray sh
1685; 1690; white and gray anhydrite
1690; 1694; red & Gray sh
1694; 1700; white and gray anhydrite
1700; 1704; red & gray sh
1704; 1714; white and gray anhydrite
1714; 1717; red & gray sh
1717; 1725; white and gray anhydrite
1725; 1727; red & gray sh
1727; 1735; white and gray anhydrite
1735; 1736; red & gray sh
1736; 1740; white and gray anhydrite
1740; 1747; red & gray sh
1747; 1755; buff, f. suc., mottled, impure, selenitic, dolo.
1755; 1800; red and gray, anhydritic sh.
1800; 1820; buff, f. suc., mottled, cherty dolo.
1820; 1840; red and gray, anhydritic sh.
1840; 1860; buff, suc., cherty dolo.
1860; 1865; red and gray sh.
1865; 1885; lt. gray, f.gran., fos., dolomitic lst.
1885; 1895; red and gray, anhydritic sh.
1895; 1913; lt. buff, f. suc., cherty dolo.
1913; 1923; red and gray, anhydritic sh.
1923; Ft. Riley
1923; 1962; buff, mottled, fos., sli cherty, dolomoitic lst.
1962; 1972; red and gray, anhydritic sh.
1972; 2010; gray- buff, f.xln., fos., sli cherty lst.
2010; Florence
2010; 2040; gray, f.xln., fos. lst. with gray, dull, op., fusulinidal. ( fusulinids ) chert 
2040; 2057; red and gray sh.
2057; 2072; wh. to cream, dse. to f.xln., fos. lst.
2072; 2080; red and gray sh
2080; 2085; lst. cream -gray, dse. to f.xln.
2085; 2098; red & gray sh
2098; 2102; lst. cream -gray, dse. to f.xln.
2102; 2113; red & gray sh
2115; Wreford
2115; 2130; gray -buff, dse. to f.xln., fos., cherty lst.
2130; 2140; red and gray sh.
2140; 2147; wh. to cream, dse. to f.xln.lst.
2147; 2160; red and gray sh.
2160; 2175; gray, dse. to f.xln., fos., sli. cherty lst.
2175; 2187; red & gray sh
2187; 2195; cream -buff, dse. to f.xln., fos. lst
2195; 2205; red & gray sh
2205; 2215; cream -buff, dse. to f.xln., fos. lst
2215; 2227; red & gray sh
2227; 2247; cream -gray, dse. to f.xln., fos., cherty lst.
2247; 2273; red and gray sh.
2273; 2280; gray -buff, dse. to f.xln.lst.
2280; 2303; buff, por., ooc., dolomitic lst.
2303; 2310; gray sh.
2310; 2340; weathered fusulinids and pinpoint porosity in cream -buff, shaley, dolomitic lst.
2340; 2350; red and gray sh.
2350; 2370; buff, dse. lst.
2370; 2373; gray sh.
2373; 2393; gray, por., ooc., dolomitic lst.
2393; 2402; red & gray sh
2402; 2409; gray -buff, dse. lst.
2409; 2417; red & gray sh
2417; 2420; gray -buff, dse. lst.
2420; 2425; red & gray sh
2425; 2450; gray, soft, por. fos. lst., sli. ooc. por.
2450; 2458; gray sh
2458; 2465; gray -buff, f.xln., fos. lst
2465; 2474; gray sh
2474; 2491; gray -buff, f.xln., fos. lst
2491; 2493; gray sh
2493; 2526; gray, dse. to f.xln., fos. lst.
2526; 2538; red & gray sh
2538; 2542; gray -buff, dse. to f.xln.lst.
2542; 2558; red & gray sh
2558; 2568; gray -buff, dse. to f.xln.lst.
2568; 2580; red & gray sh
2580; 2617;  gray -buff, f.xln., fos.lst.
2617; 2627; gray, f.gr., sub-ang., micac. sst
2627; 2638; gray dense to fine xln lst
2638; 2645; gray, f.gr., sub-ang., micac. sst
2645; 2655; red & gray sh
2655; 2667; gray dense lst
2667; 2679; red & gray sh
2679; 2682; gray dense lst
2682; 2716; gray, sandy, micac. sh.
2716; 2720;  gray, dse. to f.xln.lst.
2720; 2745; gray, sli. sandy, micac. sh.
2745; 2760; gray- buff, dse. to f.xln., fos.lst.
2760; 2790; skip
2790; gray, sandy sh.
2790; 2803; gray, sandy sh.
2803; 2825; gray -buff, f.xln., fos.lst
2825; 2833; gray sh.
2833; 2843; gray, f.gr. sub-ang., micac. calc.sst.
2843; 2848; gray-buff, dse. to f.xln.lst.
2848; 2869; red and gray, sandy sh.
2869; 2880; gray -buff, dse. to f.xln., fos.lst.
2880; 2883; gray sh.
2883; 2910; cream -gray, f.xln., fos. lst.
2910; 2913; gray sh.
2913; 2970; wh. to gray, dse. to f.xln.lst.
2970; 2973; gray sh.
2973; 3022; lt. gray, dse. to f.xln., fos., sli. cherty lst. 
3022; 3026; gray sh.
3026; 3035; lt. gray, f. xln., fos. lst.
3035; 3045; gray sh
3045; 3060; cream -gray -buff, dse. to f.xln.lst
3060; 3062; gray sh
3062; 3073; cream -gray -buff, dse. to f.xln.lst
3073; 3078; gray sh
3078; 3087; cream -gray -buff, dse. to f.xln.lst
3087; 3107; red and gray, dk. gray sh.
3107; 3120; gray, dse. to f.xln.lst.
3120; 3122; gray sh
3122; 3130; bf., por., ooc. lst.
3130; 3132; gray sh
3132; 3140; gray, dse. to f.xln.lst.
3140; 3155; red and gray sh.
3155; 3173; gray-buff, dse. to f.xln., fos., cherty lst.
3173; 3180; gray sh.
3180; 3185; bf. to brn., dse. to f.xln.lst.
3185; 3195; red and gray sh.
3195; 3213; gray, dse. to f.xln.lst., sli. ooc. por.
3213; 3220; red & gray sh
3220; 3228; gray, dse. to f.xln.lst.
3228; 3238; red & gray sh
3238; 3245; gray, dse. to f.xln.lst.
3245; 3261; red & gray sh
3261; 3283; lt. gray, dse. to f.xln.lst., scat.ooc.por.
3283; 3290; gray sh
3290; 3292; gray, f.xln.lst., scat.ooc.por.
3292; 3303; gray sh
3303; 3320; wh., f.gr., sub-ang.micac., highly calc. sst.
3320; 3338; red & gray sh
3338; 3341; gray-buff, dse. to f.xln.lst.
3341; 3418; red & gray sh
3418; 3420; gray-buff, dse. to f.xln.lst.
3420; 3480; red & gray sh
3480; 3500; skip
3500; 3530; red and gray, sli. sandy sh.
3530; 3535; gray, f.gr., sub-ang., micac., por.sst.
3535; 3590; red and gray sh.
3590; 3595; gray-buff, dse. to f.xln.lst.
3595; 3610; dark gray sh
3610; 3618; gray-buff, dse. to f.xln.lst.
3618; 3622; black sh.
3622; 3632; gray-buff, dse. to f.xln.lst.
3632; 3640; gray sh.
3640; 3660; wh., dse. to f.xln., fos. lst.
3660; 3687; red and gray sh.
3687; 3692; buff to brown, dse. to f.xln.lst.
3692; 3705; gray sh
3705; 3710; buff to brown, dse. to f.xln.lst.
3710; 3724; gray sh
3724; 3730; buff to brown, dse. to f.xln.lst.
3730; 3860; red and gray, sli. sandy sh.
3860; 3870; dk. gray sh.
3870; 3885; red and gray sh.
3885; 3900; dk. gray sh.
3900; 3920; dk. gray sh.
3900; Heebner Zone
3920; 3927; bf. to brown, dse. to f.xln., fos.lst.
3927; 3940; dk. gray sh.
3940; 3952; red and gray sh.
3952; Douglas Sst.
3952; 3970; gray, f.gr., sub-ang., micacc. sst.
3970; 3978; red & gray sh
3978; 3986; gray, f.gr., sub-ang., micacc. sst.
3986; 3992; red & gray sh
3992; 3993; gray, f.gr., sub-ang., micacc. sst.
3993; 4000; red & gray sh
4000; 4020; gray, f.gr., sub-ang., micacc. sst.
4020; 4040; red & gray sh
4040; 4047; gray, f.gr., sub-ang., micacc. sst.
4047; 4052; red & gray sh
4052; 4055; red & gray sh sandy
4055; 4063; red & gray sh
4063; 4075; red & gray sh sandy
4075; 4093; red & gray sh
4093; 4096; red & gray sh sandy
4096; 4124; red & gray sh
4124; 4126; red & gray sh sandy
4126; 4143; red & gray sh
4143; 4146; red & gray sh sandy
4146; 4180; red & gray sh
4180; 4213; dk. gray sh.
4213; 4230; gray, f.xln., fos.lst.
4230; 4237; dk. gray sh.
4237; 4265; lt. gray, dse. to f.xln., cherty lst.
4265; 4281; lt. gray, por., ooc., cherty lst.
4281; 4283; gray sh.
4283; 4301; cream -gray, dse. to f.xln., cherty lst.
4301; 4305; gray sh
4305; 4315; gray, dse. to f.xln.lst
4315; 4320; gray sh
4320; 4333; cream -gray, dse. to f.xln., sli. cherty lst.
4333; 4340; gray sh
4340; 4350; cream -gray, dse. to f.xln.lst.
4350; 4355; gray sh
4355; 4381; cream -gray, dse. to f.xln.lst.
4381; 4390; dk. gray sh.
4390; 4395; gray, dse. to f.xln.lst
4395; 4412; lt. gray, dse. lst.
4412; 4420; gray, dse. to f.xln., cherty lst.
4420; 4430; dk. gray sh.
4430; 4437; lt. gray, dse. lst. 
4437; 4440; gray sh.
4440; 4455; gray, dse. to f.xln., cherty lst.
4455; 4463; gray sh
4463; 4470; buff to brown, dse. to f.xln.lst.
4470; 4477; gray sh
4477; 4490; cream, dse. to f.xln., fos.lst.
4490; 4510; red and gray sh.
4510; 4515; lt. gray, dse. lst.
4515; 4530; dk. gray to black sh.
4530; 4540; cream, dse. lst.
4540; 4542; gray sh.
4542; 4555; cream -gray, dse. to f.xln., cherty lst.
4555; 4565; gray sh
4565; 4570; gray-buff, dse.to f.xln.lst.
4570; 4582; gray sh
4582; 4589; gray-buff, dse.to f.xln.lst.
4589; 4595; gray sh
4595; 4610; cream -gray -buff, dse. to f.xln.lst.
4610; 4620; gray sh
4620; 4625; cream -gray -buff, dse. to f.xln.lst.
4625; 4630; black sh
4630; 4640; gray sh
4640; 4645; cream -gray -buff, dse. to f.xln.lst.
4645; 4650; gray sh
4650; 4659; gray, dse. lst.
4659; 4728; red and gray sh.
4728; 4740; wh., f. to co.xln., cherty, crinoidal lst.
4729; Mississippian
4740; 4770; lt. gray, f. to med. xln., cherty, dolomitic lst., sli. spotty oil stn.
4770; 4910; lt gray -buff, f. to med.xln., profusely cherty lst., sli. spotty dk. oil stain at top
4910; 4950; bf., f.gran., shaley, sli. cherty dolomitic lst.
4950; 5055; green, gray and dk. greenish-gray sh
5055; 5080; spores in black, blocky sh.
5080; Maquoketa Sh.
5080; 5152; pale grayish -green, micro -granular, sli. dolomitic sh.
5152; Viola
5152; 5170; wh., rhombic, vuggy por., oil stn. dolo.
5170; 5225; lt. gray to buff, f. to med. xln., cherty, dolomitic lst.
5225; 5239; wh. to gray, mottled, oo.xln.lst.
5239; 5242; wh., dse. to med. xln., sandy lst.
5242; 5255; wh., f. to co.gr., sub-rd., dolomitic sst.
5255; 5263; green sh.
5263; 5270; gray, dse., mottled, dolomitic lst.
5270; 5290; green, sandy sh.
5290; 5305; gray, med. to co.gr., sub-ang. to sub-round, frosted sst.
5305; 5335; green sh
5335; 5340; gray, med. to co.gr., sub-ang. to sub-round, frosted sst.
5340; 5360; green sh
5360; 5361; gray, med. to co.gr., sub-ang. to sub-round, frosted sst.
5361; 5379; green sh
5379; 5380; gray, med. to co.gr., sub-ang. to sub-round, frosted sst.
5380; 5389; green sh
5389; 5390; gray, med. to co.gr., sub-ang. to sub-round, frosted sst.
5390; 5400; green sh
5400; 5405; gray, med. to co.gr., sub-ang. to sub-round, frosted sst.
5405; 5440; green sh
5440; 5447; gray, med. to co.gr., sub-ang. to sub-round, frosted sst.
5447; 5464; green sh
5464; Arbuckle
5464; 5485; gray-buff, suc. to co.xln., sandy dolo.