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Yearly and monthly production

EDWARD J. O'BRIEN 1-12 Lease
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Lease: EDWARD J. O'BRIEN 1-12
Operator: PostRock Midcontinent Production LLC
Location: T31S, R18E, Sec. 12
Cumulative Production: 266789 mcf (from 2006 to 2024)
KS Dept. of Revenue Lease Code: 228031
KS Dept. of Revenue Lease Name: O'BRIEN,EJ 12-1
Field: Cherokee Basin Coal Area
County: Labette
Producing Zone:
Well Data (may be an incomplete list):
T31S R18E, Sec. 12, SE NE SW
Lease: EDWARD J. O'BRIEN 1-12
Operator: QUEST CHEROKEE LLC
Current Operator: River Rock Operating, LLC
API Number: 15-099-24024

Data are received monthly from the Kansas Department of Revenue.



Annual Gas Production, (mcf)

Year Production Wells
Production Plots

2006 1,081 1
2007 12,882 1
2008 43,073 1
2009 32,014 1
2010 25,253 1
2011 22,640 1
2012 13,075 1
2013 6,645 1
2014 6,429 1
2015 14,028 1
2016 17,203 1
2017 15,703 1
2018 13,678 1
2019 12,675 1
2020 11,364 1
2021 9,984 1
2022 3,942 1
2023 3,357 1
2024 1,763 1
Reported through 7-2024.
Note: bbls is barrels; mcf is 1000 cubic feet.
  Recent Monthly Gas Production, (mcf)
(Complete production available in file saved
using blue button at top of page.)
Year Month Production Wells Reporter or Purchaser/
Reporting Customer
2014 1 635 1 PostRock Midcontinent Production LLC (100%)
2014 2 455 1 PostRock Midcontinent Production LLC (100%)
2014 3 530 1 PostRock Midcontinent Production LLC (100%)
2014 4 520 1 PostRock Midcontinent Production LLC (100%)
2014 5 527 1 PostRock Midcontinent Production LLC (100%)
2014 6 505 1 PostRock Midcontinent Production LLC (100%)
2014 7 519 1 PostRock Midcontinent Production LLC (100%)
2014 8 532 1 PostRock Midcontinent Production LLC (100%)
2014 9 549 1 PostRock Midcontinent Production LLC (100%)
2014 10 566 1 PostRock Midcontinent Production LLC (100%)
2014 11 554 1 PostRock Midcontinent Production LLC (100%)
2014 12 537 1 PostRock Midcontinent Production LLC (100%)
2015 1 608 1 PostRock Midcontinent Production LLC (100%)
2015 2 534 1 PostRock Midcontinent Production LLC (100%)
2015 3 516 1 PostRock Midcontinent Production LLC (100%)
2015 4 498 1 PostRock Midcontinent Production LLC (100%)
2015 5 1188 1 PostRock Midcontinent Production LLC (100%)
2015 6 1996 1 PostRock Midcontinent Production LLC (100%)
2015 7 1708 1 PostRock Midcontinent Production LLC (100%)
2015 8 1466 1 PostRock Midcontinent Production LLC (100%)
2015 9 1362 1 PostRock Midcontinent Production LLC (100%)
2015 10 1276 1 PostRock Midcontinent Production LLC (100%)
2015 11 1354 1 PostRock Midcontinent Production LLC (100%)
2015 12 1522 1 PostRock Midcontinent Production LLC (100%)
2016 1 1089 1 PostRock Midcontinent Production LLC (100%)
2016 2 1221 1 PostRock Midcontinent Production LLC (100%)
2016 3 1461 1 PostRock Midcontinent Production LLC (100%)
2016 4 1318 1 PostRock Midcontinent Production LLC (100%)
2016 5 1346 1 PostRock Midcontinent Production LLC (100%)
2016 6 1541 1 RIVER ROCK ENERGY LLC (100%)
2016 7 1669 1 RIVER ROCK ENERGY LLC (100%)
2016 8 1651 1 RIVER ROCK ENERGY LLC (100%)
2016 9 1526 1 RIVER ROCK ENERGY LLC (100%)
2016 10 1571 1 RIVER ROCK ENERGY LLC (100%)
2016 11 1482 1 RIVER ROCK ENERGY LLC (100%)
2016 12 1328 1 RIVER ROCK ENERGY LLC (100%)
2017 1 1640 1 RIVER ROCK ENERGY LLC (100%)
2017 2 1323 1 RIVER ROCK ENERGY LLC (100%)
2017 3 1430 1 RIVER ROCK ENERGY LLC (100%)
2017 4 1326 1 RIVER ROCK ENERGY LLC (100%)
2017 5 1377 1 RIVER ROCK ENERGY LLC (100%)
2017 6 1360 1 RIVER ROCK ENERGY LLC (100%)
2017 7 1151 1 RIVER ROCK ENERGY LLC (100%)
2017 8 817 1 RIVER ROCK ENERGY LLC (100%)
2017 9 1538 1 RIVER ROCK ENERGY LLC (100%)
2017 10 1329 1 RIVER ROCK ENERGY LLC (100%)
2017 11 1221 1 RIVER ROCK ENERGY LLC (100%)
2017 12 1191 1 RIVER ROCK ENERGY LLC (100%)
2018 1 1113 1 RIVER ROCK ENERGY LLC (100%)
2018 2 1100 1 RIVER ROCK ENERGY LLC (100%)
2018 3 1222 1 RIVER ROCK ENERGY LLC (100%)
2018 4 1158 1 RIVER ROCK ENERGY LLC (100%)
2018 5 1171 1 RIVER ROCK ENERGY LLC (100%)
2018 6 1147 1 RIVER ROCK ENERGY LLC (100%)
2018 7 1176 1 RIVER ROCK ENERGY LLC (100%)
2018 8 1164 1 RIVER ROCK ENERGY LLC (100%)
2018 9 1116 1 RIVER ROCK ENERGY LLC (100%)
2018 10 1120 1 RIVER ROCK ENERGY LLC (100%)
2018 11 1098 1 RIVER ROCK ENERGY LLC (100%)
2018 12 1093 1 RIVER ROCK ENERGY LLC (100%)
2019 1 1052 1 RIVER ROCK ENERGY LLC (100%)
2019 2 914 1 RIVER ROCK ENERGY LLC (100%)
2019 3 1071 1 RIVER ROCK ENERGY LLC (100%)
2019 4 1060 1 RIVER ROCK ENERGY LLC (100%)
2019 5 1118 1 RIVER ROCK ENERGY LLC (100%)
2019 6 1072 1 RIVER ROCK ENERGY LLC (100%)
2019 7 1104 1 RIVER ROCK ENERGY LLC (100%)
2019 8 1122 1 RIVER ROCK ENERGY LLC (100%)
2019 9 1045 1 RIVER ROCK ENERGY LLC (100%)
2019 10 1034 1 RIVER ROCK ENERGY LLC (100%)
2019 11 1028 1 RIVER ROCK ENERGY LLC (100%)
2019 12 1055 1 RIVER ROCK ENERGY LLC (100%)
2020 1 1029 1 RIVER ROCK ENERGY LLC (100%)
2020 2 969 1 RIVER ROCK ENERGY LLC (100%)
2020 3 1026 1 RIVER ROCK ENERGY LLC (100%)
2020 4 753 1 RIVER ROCK ENERGY LLC (100%)
2020 5 1041 1 RIVER ROCK ENERGY LLC (100%)
2020 6 1021 1 RIVER ROCK ENERGY LLC (100%)
2020 7 1028 1 RIVER ROCK ENERGY LLC (100%)
2020 8 1014 1 RIVER ROCK ENERGY LLC (100%)
2020 9 972 1 RIVER ROCK ENERGY LLC (100%)
2020 10 1001 1 RIVER ROCK ENERGY LLC (100%)
2020 11 966 1 RIVER ROCK ENERGY LLC (100%)
2020 12 544 1 RIVER ROCK ENERGY LLC (100%)
2021 1 371 1 RIVER ROCK ENERGY LLC (100%)
2021 2 271 1 RIVER ROCK ENERGY LLC (100%)
2021 3 354 1 RIVER ROCK ENERGY LLC (100%)
2021 4 336 1 RIVER ROCK ENERGY LLC (100%)
2021 5 675 1 RIVER ROCK ENERGY LLC (100%)
2021 6 1768 1 RIVER ROCK ENERGY LLC (100%)
2021 7 1216 1 RIVER ROCK ENERGY LLC (100%)
2021 8 1083 1 RIVER ROCK ENERGY LLC (100%)
2021 9 1007 1 RIVER ROCK ENERGY LLC (100%)
2021 10 1000 1 RIVER ROCK ENERGY LLC (100%)
2021 11 943 1 RIVER ROCK ENERGY LLC (100%)
2021 12 960 1 RIVER ROCK ENERGY LLC (100%)
2022 1 709 1 RIVER ROCK ENERGY LLC (100%)
2022 2 282 1 RIVER ROCK ENERGY LLC (100%)
2022 3 304 1 RIVER ROCK ENERGY LLC (100%)
2022 4 300 1 RIVER ROCK ENERGY LLC (100%)
2022 5 310 1 RIVER ROCK ENERGY LLC (100%)
2022 6 288 1 RIVER ROCK ENERGY LLC (100%)
2022 7 305 1 RIVER ROCK ENERGY LLC (100%)
2022 8 306 1 RIVER ROCK ENERGY LLC (100%)
2022 9 298 1 RIVER ROCK ENERGY LLC (100%)
2022 10 298 1 RIVER ROCK ENERGY LLC (100%)
2022 11 279 1 RIVER ROCK ENERGY LLC (100%)
2022 12 263 1 RIVER ROCK ENERGY LLC (100%)
2023 1 267 1 RIVER ROCK ENERGY LLC (100%)
2023 2 247 1 RIVER ROCK ENERGY LLC (100%)
2023 3 283 1 RIVER ROCK ENERGY LLC (100%)
2023 4 284 1 RIVER ROCK ENERGY LLC (100%)
2023 5 297 1 RIVER ROCK ENERGY LLC (100%)
2023 6 283 1 RIVER ROCK ENERGY LLC (100%)
2023 7 292 1 RIVER ROCK ENERGY LLC (100%)
2023 8 289 1 RIVER ROCK ENERGY LLC (100%)
2023 9 280 1 RIVER ROCK ENERGY LLC (100%)
2023 10 283 1 RIVER ROCK ENERGY LLC (100%)
2023 11 275 1 RIVER ROCK ENERGY LLC (100%)
2023 12 277 1 RIVER ROCK ENERGY LLC (100%)
2024 1 237 1 RIVER ROCK ENERGY LLC (100%)
2024 2 231 1 RIVER ROCK ENERGY LLC (100%)
2024 3 259 1 RIVER ROCK ENERGY LLC (100%)
2024 4 254 1 RIVER ROCK ENERGY LLC (100%)
2024 5 265 1 RIVER ROCK ENERGY LLC (100%)
2024 6 255 1 RIVER ROCK ENERGY LLC (100%)
2024 7 262 1 RIVER ROCK ENERGY LLC (100%)



Pre-1987 cumulative data and monthly volume data is provided under license agreement to the KGS by IHS Energy. As such, it may be reviewed and used for public service and research purposes. It may not be downloaded or used for purposes of re-packaging, reselling or dissemination to third parties.

Kansas Geological Survey
Comments to webadmin@kgs.ku.edu
URL=http://www.kgs.ku.edu/Magellan/Field/lease.html
Programs Updated May 27, 2014
Data from Kansas Dept. of Revenue files monthly.