The top 25 oil and gas operators in Mcmullen County, Texas, ranked by monthly oil production. Combined output: 115,676,646 BBL oil and 209,026,183 Mcf gas across 1,509 reporting wells/leases.
| Rank | Operator | Oil (BBL) | Gas (Mcf) | Wells |
|---|---|---|---|---|
| 1 | Marathon Oil Company | 29,408,991 | 21,466,588 | 4 |
| 2 | Murphy Exploration & Production Company | 26,978,188 | 67,685,243 | 36 |
| 3 | Ineos Usa Oil & Gas LLC | 23,702,670 | 27,593,633 | 112 |
| 4 | Eog Resources | 15,138,970 | 15,045,747 | 144 |
| 5 | Burlington Resources Oil & Gas Company | 8,113,289 | 13,097,591 | 5 |
| 6 | Repsol Oil & Gas Canada | 2,402,947 | 7,718,437 | 56 |
| 7 | Gulftex Energy Iii | 1,972,167 | 6,012,371 | 43 |
| 8 | Silverbow Resources Oper | 1,732,910 | 5,346,507 | 110 |
| 9 | Bpx Operating Company | 1,076,893 | 22,582,346 | 273 |
| 10 | Rosewood Resources | 1,037,833 | 4,752,376 | 20 |
| 11 | Javelin Energy | 880,839 | 986,558 | 26 |
| 12 | Castlerock Ef Operating LLC | 710,047 | 1,049,442 | 8 |
| 13 | Trinity Operating Usg | 592,329 | 839,101 | 47 |
| 14 | Verdun Oil Ef Ii LLC | 442,215 | 582,017 | 4 |
| 15 | Verdun Oil & Gas | 413,523 | 1,507,678 | 45 |
| 16 | Varas Energy Operating Company, LLC | 243,112 | 2,651,452 | 443 |
| 17 | Caturus Energy, LLC | 224,264 | 7,991,715 | 41 |
| 18 | Wr Resources, LLC | 168,379 | 84,150 | 5 |
| 19 | Hughes Dan A Company | 143,856 | 0 | 1 |
| 20 | Rickaway Energy | 113,901 | 32,890 | 4 |
| 21 | Xto Energy | 85,924 | 498,233 | 34 |
| 22 | Awp Operating Company | 42,113 | 1,470,657 | 13 |
| 23 | Gtg Operating | 27,323 | 30,346 | 23 |
| 24 | Atlas Operating | 12,853 | 0 | 11 |
| 25 | Southwest Royalties | 11,110 | 1,105 | 1 |