Fields: IATAN, EAST HOWARD
Cum Oil
5.2M BBL
Cum Gas
438k MCF
casinghead
Wells
262
Production
1993-01 — 2026-04
Peak Month
1994-10
Production History Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil: 5,196,201 BBL Cum Gas: 437,759 MCF
RRC production reported through Apr 2026 · recent months incomplete
Decline Curve Analysis
qi
21,664 BBL/mo
Di (annual)
10.0%
b-factor
2.0
EUR
6,029,060 BBL
R-squared
0.792
type
hyperbolic
Operator History (from monthly production reports)
Wells (262)
| WELL# | API | OPERATOR | PERMITS | DEPTH | LAST_ISSUED |
|---|---|---|---|---|---|
| 40 | 42-227-03306 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 2020-02-25 |
| 248 | 42-227-40300 | GRAYROCK ENERGY II, LLC | 2 | 3,000 | 2019-08-13 |
| 150 | 42-227-30488 | GRAYROCK ENERGY II, LLC | 1 | 2,850 | 2019-08-07 |
| 290 | 42-227-40291 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-08-07 |
| 33A | 42-227-40290 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-07-31 |
| 52A | 42-227-33995 | GRAYROCK ENERGY II, LLC | 2 | 3,600 | 2019-07-24 |
| 38A | 42-227-34934 | GRAYROCK ENERGY II, LLC | 2 | 2,950 | 2019-06-14 |
| 276W | 42-227-40181 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-05-24 |
| 277 | 42-227-40180 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-05-24 |
| 77A | 42-227-40172 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-05-20 |
| 291 | 42-227-40169 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-05-10 |
| 30A | 42-227-40156 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-05-03 |
| 288 | 42-227-40139 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-04-18 |
| 292 | 42-227-40138 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-04-18 |
| 293 | 42-227-40140 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-04-18 |
| 283 | 42-227-40118 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-04-11 |
| 289 | 42-227-40115 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-04-09 |
| 70A | 42-227-40114 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-04-05 |
| 271 | 42-227-40104 | GRAYROCK ENERGY II, LLC | 2 | 3,000 | 2019-03-27 |
| 265 | 42-227-40084 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-03-20 |
| 256 | 42-227-40080 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-03-18 |
| 50A | 42-227-40057 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-03-07 |
| 254 | 42-227-40036 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-02-28 |
| 274 | 42-227-40002 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-01-28 |
| 54A | 42-227-39964 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2019-01-11 |
| 257 | 42-227-39923 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2018-12-14 |
| 247 | 42-227-39904 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2018-12-07 |
| 246 | 42-227-39864 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2018-11-15 |
| 59A | 42-227-39858 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2018-11-12 |
| 39A | 42-227-39837 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2018-10-25 |
| 69A | 42-227-39815 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2018-10-11 |
| 13A | 42-227-39706 | GRAYROCK ENERGY II, LLC | 1 | 3,000 | 2018-07-30 |
| 12A | 42-227-35241 | GRAYROCK ENERGY II, LLC | 1 | 3,200 | 1997-08-28 |
| 44A | 42-227-35242 | GRAYROCK ENERGY II, LLC | 1 | 3,200 | 1997-08-28 |
| 58A | 42-227-35243 | GRAYROCK ENERGY II, LLC | 1 | 3,200 | 1997-08-28 |
| 6A | 42-227-35240 | GRAYROCK ENERGY II, LLC | 1 | 3,200 | 1997-08-28 |
| 92A | 42-227-35239 | GRAYROCK ENERGY II, LLC | 1 | 3,200 | 1997-08-28 |
| 95 A | 42-227-35228 | GRAYROCK ENERGY II, LLC | 1 | 3,200 | 1997-07-10 |
| 15A | 42-227-35151 | GRAYROCK ENERGY II, LLC | 1 | 3,200 | 1997-02-13 |
| 66A | 42-227-35150 | GRAYROCK ENERGY II, LLC | 1 | 3,200 | 1997-02-13 |
| 96A | 42-227-33998 | GRAYROCK ENERGY II, LLC | 2 | 3,600 | 1995-11-06 |
| 43A | 42-227-34935 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1995-07-17 |
| 4A | 42-227-34933 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1995-07-17 |
| 65A | 42-227-34932 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1995-07-17 |
| 111A | 42-227-34849 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1994-07-25 |
| 31A | 42-227-34846 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1994-07-25 |
| 51A | 42-227-34847 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1994-07-25 |
| 82A | 42-227-34848 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1994-07-25 |
| 1A | 42-227-34808 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1993-10-21 |
| 245 | 42-227-34807 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1993-10-21 |
| 241 | 42-227-34615 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1991-01-22 |
| 242 | 42-227-34614 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1991-01-22 |
| 243 | 42-227-34613 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1991-01-22 |
| 244 | 42-227-34616 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1991-01-22 |
| 237 | 42-227-34528 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1990-02-14 |
| 238 | 42-227-34526 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1990-02-14 |
| 239 | 42-227-34527 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1990-02-14 |
| 240 | 42-227-34531 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1990-02-14 |
| 233 | 42-227-34471 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1989-07-28 |
| 234 | 42-227-34469 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1989-07-28 |
| 235W | 42-227-34470 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1989-07-28 |
| 236 | 42-227-34472 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1989-07-28 |
| 236W | 42-227-34472 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1989-07-28 |
| 231 | 42-227-34462 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1989-07-14 |
| 232W | 42-227-34463 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1989-07-14 |
| 226W | 42-227-34197 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1987-09-23 |
| 227W | 42-227-34198 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1987-09-23 |
| 228W | 42-227-34199 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1987-09-23 |
| 229 | 42-227-34200 | GRAYROCK ENERGY II, LLC | 2 | 2,900 | 1987-09-23 |
| 229W | 42-227-34200 | GRAYROCK ENERGY II, LLC | 2 | 2,900 | 1987-09-23 |
| 230 | 42-227-34201 | GRAYROCK ENERGY II, LLC | 2 | 2,900 | 1987-09-23 |
| 108A | 42-227-33994 | GRAYROCK ENERGY II, LLC | 1 | 3,600 | 1986-02-26 |
| 89A | 42-227-33786 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-06-14 |
| 97A | 42-227-33785 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-06-14 |
| 99A | 42-227-33784 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-06-14 |
| 224W | 42-227-33735 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-05-10 |
| 225W | 42-227-33736 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-05-10 |
| 220 | 42-227-33725 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-04-25 |
| 213W | 42-227-33706 | GRAYROCK ENERGY II, LLC | 1 | 2,980 | 1985-03-29 |
| 222W | 42-227-33702 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-29 |
| 221 | 42-227-33703 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-27 |
| 209 | 42-227-33684 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-12 |
| 218 | 42-227-33685 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-12 |
| 208W | 42-227-33681 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-06 |
| 210 | 42-227-33670 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-06 |
| 211 | 42-227-33672 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-06 |
| 212 | 42-227-33673 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-06 |
| 215 | 42-227-33674 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-06 |
| 216 | 42-227-33675 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-06 |
| 217 | 42-227-33676 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-06 |
| 223 | 42-227-33671 | GRAYROCK ENERGY II, LLC | 1 | 2,950 | 1985-03-06 |
| 214 | 42-227-33594 | GRAYROCK ENERGY II, LLC | 1 | 3,650 | 1984-12-07 |
| 219 | 42-227-33593 | GRAYROCK ENERGY II, LLC | 1 | 3,650 | 1984-12-07 |
| 80A | 42-227-33411 | GRAYROCK ENERGY II, LLC | 1 | 3,600 | 1984-06-29 |
| 83A | 42-227-33409 | GRAYROCK ENERGY II, LLC | 1 | 3,600 | 1984-06-27 |
| 98A | 42-227-33410 | GRAYROCK ENERGY II, LLC | 1 | 3,600 | 1984-06-01 |
| 206W | 42-227-32059 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1980-01-03 |
| 207W | 42-227-32060 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1980-01-03 |
| 204W | 42-227-31658 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1978-08-31 |
| 205W | 42-227-31657 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1978-08-31 |
| 201 | 42-227-31494 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1977-09-29 |
| 196W | 42-227-31455 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1977-09-26 |
| 202W | 42-227-31485 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1977-09-15 |
| 203W | 42-227-31454 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1977-07-29 |
| 197W | 42-227-31434 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1977-07-06 |
| 198W | 42-227-31435 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1977-07-06 |
| 199W | 42-227-31423 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1977-06-20 |
| 200 | 42-227-31424 | GRAYROCK ENERGY II, LLC | 1 | 2,900 | 1977-06-20 |
| 10 | 42-227-03276 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 100 | 42-227-03366 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 101 | 42-227-03367 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 103 | 42-227-03369 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 104 | 42-227-03370 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 105 | 42-227-03371 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 106 | 42-227-03372 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 107 | 42-227-03373 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 109 | 42-227-03375 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 11 | 42-227-03277 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 110 | 42-227-10328 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 111 | 42-227-10327 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 112W | 42-227-04004 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 113W | 42-227-04003 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 114W | 42-227-04002 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 115W | 42-227-04001 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 116W | 42-227-04000 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 117W | 42-227-10229 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 118W | 42-227-10230 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 119W | 42-227-10695 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 12 | 42-227-03278 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 120W | 42-227-10231 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 121W | 42-227-10232 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 122W | 42-227-10233 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 123W | 42-227-10234 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 124W | 42-227-10235 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 125W | 42-227-10236 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 126W | 42-227-10237 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 127 | 42-227-11005 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 128W | 42-227-30312 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 129W | 42-227-30306 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 13 | 42-227-03279 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 130W | 42-227-30302 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 131W | 42-227-30305 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 132W | 42-227-30304 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 133W | 42-227-30303 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 134W | 42-227-30418 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 135W | 42-227-30417 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 136W | 42-227-30416 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 137W | 42-227-30468 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 138W | 42-227-30469 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 14 | 42-227-03280 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 140W | 42-227-30466 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 141W | 42-227-30465 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 142W | 42-227-30464 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 144W | 42-227-30500 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 145W | 42-227-30499 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 147W | 42-227-30525 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 148W | 42-227-30524 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 149W | 42-227-30888 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 15 | 42-227-03281 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 151 | 42-227-30533 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 152 | 42-227-30534 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 16 | 42-227-03282 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 160W | 42-227-30539 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 161W | 42-227-30538 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 162W | 42-227-30637 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 163W | 42-227-30636 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 164W | 42-227-30886 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 166W | 42-227-30970 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 168W | 42-227-30802 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 17 | 42-227-03283 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 170W | 42-227-31015 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 171W | 42-227-31016 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 172W | 42-227-31017 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 174W | 42-227-31018 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 175W | 42-227-30696 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 176W | 42-227-30697 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 177W | 42-227-30698 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 178W | 42-227-30797 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 179W | 42-227-31019 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 18 | 42-227-03284 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 180W | 42-227-30901 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 181W | 42-227-30902 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 182W | 42-227-31042 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 183W | 42-227-31041 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 184W | 42-227-31039 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 185W | 42-227-31040 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 186W | 42-227-31091 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 187W | 42-227-31092 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 188W | 42-227-31090 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 189W | 42-227-31093 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 19 | 42-227-03285 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 190W | 42-227-31161 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 191W | 42-227-31160 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 192W | 42-227-31159 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 193 | 42-227-31158 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 195W | 42-227-31326 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 2 | 42-227-03156 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 21 | 42-227-03287 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 22 | 42-227-03288 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 23 | 42-227-03289 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 25 | 42-227-03291 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 26 | 42-227-03292 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 27 | 42-227-03293 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 28 | 42-227-03294 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 29 | 42-227-03295 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 3 | 42-227-03270 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 31 | 42-227-03297 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 32 | 42-227-03298 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 33 | 42-227-03299 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 34 | 42-227-03300 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 36 | 42-227-03302 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 37 | 42-227-03303 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 38 | 42-227-03304 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 41 | 42-227-03307 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 42 | 42-227-03308 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 43 | 42-227-03309 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 44 | 42-227-03310 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 46 | 42-227-03312 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 47 | 42-227-03313 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 48 | 42-227-03314 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 49 | 42-227-03315 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 5 | 42-227-03271 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 50 | 42-227-03316 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 51 | 42-227-03317 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 53 | 42-227-03319 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 55 | 42-227-03321 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 56 | 42-227-04367 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 57 | 42-227-03323 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 58 | 42-227-03324 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 6 | 42-227-03272 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 60 | 42-227-03326 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 61 | 42-227-03327 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 62 | 42-227-03328 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 63 | 42-227-03329 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 64 | 42-227-04370 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 65 | 42-227-03331 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 66 | 42-227-03332 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 67 | 42-227-03333 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 7 | 42-227-03273 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 71 | 42-227-03337 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 72 | 42-227-03338 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 73 | 42-227-03339 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 74 | 42-227-03340 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 76 | 42-227-03342 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 77 | 42-227-03343 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 78 | 42-227-03344 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 79 | 42-227-03345 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 8 | 42-227-03274 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 81 | 42-227-03347 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 82 | 42-227-03348 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 84 | 42-227-03350 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 85 | 42-227-03351 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 86 | 42-227-03352 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 87 | 42-227-03353 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 88 | 42-227-03354 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 9 | 42-227-03275 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 90 | 42-227-03356 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 91 | 42-227-03357 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 92 | 42-227-03358 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 93 | 42-227-03359 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 94 | 42-227-03360 | GRAYROCK ENERGY II, LLC | -- | -- | -- |
| 95 | 42-227-03361 | GRAYROCK ENERGY II, LLC | -- | -- | -- |