The top 25 oil and gas operators in Atascosa County, Texas, ranked by monthly oil production. Combined output: 139,299,035 BBL oil and 110,238,647 Mcf gas across 741 reporting wells/leases.
| Rank | Operator | Oil (BBL) | Gas (Mcf) | Wells |
|---|---|---|---|---|
| 1 | Marathon Oil Company | 117,317,223 | 88,452,018 | 117 |
| 2 | Eog Resources | 9,153,564 | 6,196,859 | 251 |
| 3 | Xto Energy | 4,441,794 | 7,636,672 | 53 |
| 4 | Javelin Energy | 4,197,503 | 4,586,175 | 65 |
| 5 | Valence Operating Company | 815,036 | 325,504 | 7 |
| 6 | Silverbow Resources Oper | 733,737 | 339,291 | 17 |
| 7 | Ineos Usa Oil & Gas LLC | 695,745 | 616,260 | 1 |
| 8 | Texas American Resources Company | 554,021 | 679,901 | 32 |
| 9 | Murphy Exploration & Production Company | 390,467 | 542,728 | 75 |
| 10 | Verdun Oil & Gas | 389,952 | 498,347 | 10 |
| 11 | Verdun Oil Ef Ii LLC | 152,994 | 158,760 | 1 |
| 12 | Trinity Operating Usg | 103,893 | 41,961 | 12 |
| 13 | Wenbe | 47,940 | 0 | 11 |
| 14 | Guinn Operating Company | 46,854 | 0 | 4 |
| 15 | Pillar Efs LLC | 42,880 | 23,412 | 2 |
| 16 | Tidal Petroleum | 37,860 | 4,388 | 1 |
| 17 | Alvarado 2014 | 33,103 | 4,480 | 4 |
| 18 | J P Oil Company | 30,144 | 35,807 | 5 |
| 19 | Mazco Energy | 29,700 | 1,960 | 12 |
| 20 | Trailblazer Energy Resources LLC | 18,802 | 78,882 | 28 |
| 21 | Rickaway Energy | 17,855 | 6,766 | 7 |
| 22 | Dorchester Operating Company LLC | 17,049 | 0 | 3 |
| 23 | Brymer Contracting Incorporated | 13,624 | 0 | 19 |
| 24 | Tbm Catarina LLC | 8,841 | 8,476 | 2 |
| 25 | Nineveh | 8,454 | 0 | 2 |