The largest oil and gas operators active in Oklahoma — ranked by total well count, with recent drilling activity, DUC inventory, and producing-well counts for each. Click any operator to see their full profile and current permits.
Refreshed daily from OCC well-header records. Data current as of 2026-09-16.
Quick answer: By wells operated, Citation Oil & Gas is the largest oil and gas operator in Oklahoma with 9,098 wells on record, followed by Chesapeake Energy (6,941) and State Fund Plugging (4,171). Ranked from Oklahoma Corporation Commission (OCC) well-header records (as of 2026-09-16). This is an operated-well-count ranking, not a revenue or market-cap ranking.
As of 2026-09-16, the most active operator in Oklahoma is Citation Oil & Gas with 9,098 wells on record and 40 recent permits, across the top 100 ranked operators, per Oklahoma Corporation Commission (OCC) records.
| # | Operator | Wells | Permits 24mo | DUCs | Producing | Top Formation | Top County |
|---|---|---|---|---|---|---|---|
| 1 | Citation Oil & Gas | 9,098 | 40 | 4,295 | 3,607 | South Oklahoma Folded Belt | Carter |
| 2 | Chesapeake Energy | 6,941 | 0 | 4,599 | 1,920 | Anadarko Basin | Woods |
| 3 | State Fund Plugging | 4,171 | 0 | 77 | 217 | Excello-Mulky | Nowata |
| 4 | Diversified Production LLC | 4,082 | 31 | 176 | 3,890 | Anadarko Basin | Woodward |
| 5 | Bcemach | 2,556 | 29 | 103 | 2,424 | Anadarko Basin | Woods |
| 6 | Bcemach Iii LLC | 2,478 | 43 | 242 | 2,104 | Anadarko Basin | Kingfisher |
| 7 | Xto Energy | 2,398 | 0 | 1,032 | 1,201 | Anadarko Basin | Carter |
| 8 | Continental Resources | 2,265 | 143 | 584 | 1,490 | Anadarko Basin | Grady |
| 9 | Merit Energy Company | 2,247 | 2 | 540 | 1,637 | Arkoma Basin | Latimer |
| 10 | Conocophillips Company | 2,225 | 0 | 272 | 434 | Anadarko Basin | Texas |
| 11 | Exxon Mobil | 2,112 | 0 | 462 | 657 | Excello-Mulky | Creek |
| 12 | Devon Energy Production Company | 2,068 | 67 | 431 | 1,546 | Woodford | Canadian |
| 13 | Sandridge Exploration & Production | 2,047 | 18 | 299 | 1,679 | Anadarko Basin | Alfalfa |
| 14 | Gateway Resources | 1,904 | 0 | 370 | 1,464 | Excello-Mulky | Washington |
| 15 | Bpx Operating Company | 1,842 | 0 | 872 | 628 | Arkoma Basin | Latimer |
| 16 | Ovintiv USA INC | 1,702 | 16 | 978 | 567 | Woodford | Kingfisher |
| 17 | Great Horned Owls, LLC | 1,696 | 0 | 244 | 1,357 | Chautauqua Platform | Creek |
| 18 | Abundance Energy Services LLC | 1,587 | 0 | 25 | 1,561 | Arkoma Basin | Pittsburg |
| 19 | Unit Petroleum Company | 1,548 | 1 | 545 | 917 | Anadarko Basin | Ellis |
| 20 | Fw Midcon I, LLC | 1,541 | 76 | 51 | 1,485 | Woodford | Kingfisher |
| 21 | Mack Energy Company | 1,531 | 28 | 573 | 689 | Woodford | Carter |
| 22 | Dominion OK TX E & P | 1,515 | 0 | 670 | 471 | Anadarko Basin | Major |
| 23 | Latigo Oil & Gas | 1,469 | 31 | 238 | 1,167 | Anadarko Basin | Beaver |
| 24 | Eog Resources | 1,463 | 0 | 844 | 450 | Anadarko Basin | Texas |
| 25 | Eiger Operating Company, LLC | 1,416 | 1 | 54 | 1,347 | Anadarko Basin | Texas |
| 26 | Stephens & Johnson Operating Company | 1,384 | 11 | 386 | 799 | Woodford | Stephens |
| 27 | Unbridled Resources LLC | 1,309 | 0 | 31 | 1,275 | Anadarko Basin | Ellis |
| 28 | Chevron | 1,292 | 0 | 314 | 292 | Chautauqua Platform | Stephens |
| 29 | Apache | 1,289 | 0 | 615 | 364 | Anadarko Basin | Roger Mills |
| 30 | Validus Energy Ii Midcon LLC | 1,266 | 94 | 67 | 1,185 | Woodford | Canadian |
| 31 | Kaiserfrancis Oil Company | 1,245 | 1 | 335 | 630 | Anadarko Basin | Washita |
| 32 | Magnolia Petroleum Company | 1,231 | 0 | 23 | 162 | South Oklahoma Folded Belt | Stephens |
| 33 | Daylight Petroleum | 1,202 | 1 | 160 | 977 | Woodford | Garvin |
| 34 | Oxy | 1,190 | 0 | 187 | 289 | Anadarko Basin | Texas |
| 35 | Mewbourne Oil Company | 1,172 | 139 | 299 | 796 | Anadarko Basin | Ellis |
| 36 | Snr Operating LLC | 1,114 | 1 | 317 | 709 | Chautauqua Platform | Creek |
| 37 | Trinity Operating Usg | 1,105 | 0 | 76 | 1,026 | Woodford-Caney | Pittsburg |
| 38 | Endeavor Energy Resources | 1,061 | 0 | 352 | 585 | Excello-Mulky | Nowata |
| 39 | Presidio Petroleum | 1,054 | 0 | 25 | 1,025 | Red Fork | Roger Mills |
| 40 | Kodiak Oil & Gas | 1,035 | 19 | 204 | 766 | Woodford | Carter |
| 41 | Canvas Energy LLC | 1,033 | 8 | 429 | 483 | Anadarko Basin | Canadian |
| 42 | Coterra Energy INC | 1,000 | 46 | 221 | 738 | Woodford | Canadian |
| 43 | Wild Outdoors Oil | 973 | 0 | 144 | 747 | Woodford | Stephens |
| 44 | Foundation Energy Management | 954 | 2 | 63 | 872 | Anadarko Basin | Beaver |
| 45 | Le Jones Operating | 953 | 6 | 301 | 611 | Woodford | Stephens |
| 46 | Marathon Oil Company | 941 | 0 | 523 | 330 | Anadarko Basin | Oklahoma |
| 47 | Mustang Fuel | 928 | 0 | 153 | 623 | Arkoma Basin | Pittsburg |
| 48 | Circle 9 Resources | 889 | 3 | 271 | 547 | Chautauqua Platform | Seminole |
| 49 | Samson Resources Company | 887 | 0 | 303 | 343 | Anadarko Basin | Roger Mills |
| 50 | Scout Energy Management | 884 | 28 | 261 | 485 | Woodford | Carter |
| 51 | Crawley Petroleum | 835 | 26 | 257 | 527 | Anadarko Basin | Garfield |
| 52 | Shell Oil Company | 793 | 0 | 18 | 35 | Anadarko Basin | Beckham |
| 53 | New Dominion | 776 | 0 | 246 | 480 | Chautauqua Platform | Seminole |
| 54 | Breitburn Operating | 770 | 1 | 611 | 107 | Anadarko Basin | Texas |
| 55 | Spess Oil Company | 761 | 3 | 166 | 471 | Chautauqua Platform | Pawnee |
| 56 | Prime Energy Company | 744 | 0 | 209 | 448 | South Oklahoma Folded Belt | Garvin |
| 57 | Arkoma Resources | 739 | 0 | 65 | 636 | Woodford-Caney | Pittsburg |
| 58 | Burk Royalty | 710 | 1 | 77 | 572 | Anadarko Basin | Texas |
| 59 | Wildhorse Operating Company | 709 | 0 | 173 | 478 | South Oklahoma Folded Belt | Stephens |
| 60 | Linn Operating | 671 | 0 | 571 | 73 | Anadarko Basin | Carter |
| 61 | Phoenix Petrocorp | 668 | 0 | 230 | 356 | South Oklahoma Folded Belt | Carter |
| 62 | Petroleum Waste Recovery | 661 | 0 | 5 | 25 | Anadarko Basin | Texas |
| 63 | Rocky Roads Operating LLC | 657 | 0 | 291 | 352 | Excello-Mulky | Nowata |
| 64 | Territory Resources | 647 | 5 | 88 | 539 | Anadarko Basin | Caddo |
| 65 | Teocalli Exploration LLC | 637 | 0 | 27 | 606 | Red Fork | Roger Mills |
| 66 | Cantrell Energy | 634 | 1 | 183 | 403 | South Oklahoma Folded Belt | Carter |
| 67 | Ew Operating OK, LLC | 630 | 0 | 5 | 622 | Arkoma Basin | Latimer |
| 68 | Twain Energy LLC | 627 | 0 | 16 | 597 | Anadarko Basin | Beaver |
| 69 | T Bar M Energy Resources | 623 | 4 | 153 | 329 | Chautauqua Platform | Okmulgee |
| 70 | Nadel And Gussman | 609 | 14 | 59 | 161 | Chautauqua Platform | Osage |
| 71 | Lewis Oil Operations | 601 | 9 | 144 | 383 | South Oklahoma Folded Belt | Carter |
| 72 | Staghorn Petroleum | 599 | 7 | 21 | 568 | Anadarko Basin | Major |
| 73 | Anadarko Petroleum | 581 | 0 | 211 | 146 | Anadarko Basin | Texas |
| 74 | Avalanche Oil & Gas | 543 | 0 | 10 | 516 | Anadarko Basin | Roger Mills |
| 75 | Midcon Energy Operating | 542 | 0 | 309 | 126 | Chautauqua Platform | Grady |
| 76 | Marjo Operating | 534 | 3 | 240 | 256 | Chautauqua Platform | Lincoln |
| 77 | Formentera Operations LLC | 534 | 4 | 49 | 472 | Anadarko Basin | Garfield |
| 78 | Tag Team Resources | 530 | 0 | 111 | 412 | Woodford-Caney | Pittsburg |
| 79 | Cimarex Energy Company | 518 | 0 | 307 | 159 | South Oklahoma Folded Belt | Garvin |
| 80 | Noble Energy | 516 | 0 | 331 | 122 | South Oklahoma Folded Belt | Stephens |
| 81 | Southern Community | 515 | 4 | 149 | 195 | Anadarko Basin | Grant |
| 82 | Range Production Company | 513 | 0 | 320 | 134 | Anadarko Basin | Major |
| 83 | Atlantic Richfield Company | 504 | 0 | 98 | 32 | Anadarko Basin | Garfield |
| 84 | Bullseye Operating | 502 | 0 | 164 | 306 | Excello-Mulky | Washington |
| 85 | Comdisco Resources | 500 | 0 | 45 | 28 | Excello-Mulky | Nowata |
| 86 | Kirkpatrick Oil Company | 497 | 6 | 154 | 319 | Anadarko Basin | Major |
| 87 | Fbf Energy LLC | 493 | 3 | 91 | 372 | Anadarko Basin | Garvin |
| 88 | Pemco | 488 | 0 | 89 | 375 | Excello-Mulky | Nowata |
| 89 | Qep Energy Company | 470 | 0 | 252 | 158 | Anadarko Basin | Haskell |
| 90 | Sheridan Production Company | 461 | 0 | 337 | 91 | Anadarko Basin | Pontotoc |
| 91 | Glb Exploration | 454 | 6 | 236 | 198 | Chautauqua Platform | Oklahoma |
| 92 | Stephens Production Company | 451 | 0 | 168 | 157 | Arkoma Basin | Le Flore |
| 93 | Bratco Operating Company | 449 | 0 | 185 | 197 | Excello-Mulky | Washington |
| 94 | Red Rocks Oil & Gas Operating | 449 | 1 | 129 | 296 | Woodford | Garvin |
| 95 | Ward Petroleum | 445 | 0 | 220 | 157 | Anadarko Basin | Grady |
| 96 | Krumme Oil Company LLP | 445 | 0 | 87 | 158 | Chautauqua Platform | Creek |
| 97 | M M Energy | 443 | 0 | 256 | 136 | Anadarko Basin | Garfield |
| 98 | Performance Operating | 439 | 0 | 126 | 281 | Excello-Mulky | Washington |
| 99 | Samedan Oil | 433 | 0 | 73 | 45 | Woodford | Carter |
| 100 | Santa Fe Operating, LLC | 432 | 2 | 14 | 417 | Woodford-Caney | Pittsburg |
Source: Oklahoma Corporation Commission well-header records.
Ranking: Operators ranked by total well count under their current operator-of-record. Recent permits cover the last 24 months; DUC count is wells spudded but not yet producing; producing-well count is wells with a first-production date on file.
Why it matters: Knowing who operates the most wells in Oklahoma — and who's drilling the most NOW — helps mineral owners understand who they're dealing with at the lease level.
Refresh cadence: Daily. Data current as of 2026-09-16.
Cite this dataset
Permanently archived and citable via a DOI on Zenodo (CERN), under a CC BY 4.0 license. DOI: 10.5281/zenodo.21442884 · View on Zenodo
License & attribution: This data is licensed CC BY 4.0. You are free to share and adapt it, including commercially, provided you credit “Buckhead Energy” and link back to this page or the DOI above.
By wells operated, Citation Oil & Gas is the largest oil and gas operator in Oklahoma, with 9,098 wells on record per Oklahoma Corporation Commission (OCC) data. Note that "biggest" by revenue or market capitalization can rank differently — this measures operated well count.
The top 10 operators by operated well count are: Citation Oil & Gas, Chesapeake Energy, State Fund Plugging, Diversified Production LLC, Bcemach, Bcemach Iii LLC, XTO Energy, Continental Resources, Merit Energy Company, Conocophillips Company. The full top-100 ranking with permits, DUC inventory, and producing-well counts is in the leaderboard below.
Citation Oil & Gas operates the most wells in Oklahoma at 9,098, with 40 permits filed in the last 24 months, per OCC well-header records.
This leaderboard ranks the top 100 operators active in Oklahoma by total well count. Many more file with the regulator; these are the largest by operated wells.
By wells operated — the count of wells under each company's current operator-of-record designation in Oklahoma Corporation Commission (OCC) records. It is not a revenue, production-volume, or market-capitalization ranking.
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State: Oklahoma
Operators ranked: 100
Total wells: 120,075
Permits (24mo): 985
Last refresh: 2026-09-16
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