The top 25 oil and gas operators in Zavala County, Texas, ranked by monthly oil production. Combined output: 26,813,398 BBL oil and 26,153,695 Mcf gas across 283 reporting wells/leases.
| Rank | Operator | Oil (BBL) | Gas (Mcf) | Wells |
|---|---|---|---|---|
| 1 | Exco Operating Company | 22,491,109 | 17,381,513 | 95 |
| 2 | Buffco Production | 1,639,922 | 1,071,586 | 13 |
| 3 | Magnolia Oil & Gas Operating | 1,017,725 | 856,857 | 10 |
| 4 | Trinity Operating Usg | 718,695 | 4,854,483 | 16 |
| 5 | U S Energy Development | 369,814 | 1,055,769 | 9 |
| 6 | Flint Oak Energy | 123,237 | 26,007 | 11 |
| 7 | Blackbrush O & G | 77,805 | 366,177 | 1 |
| 8 | Cml Exploration | 64,121 | 138,440 | 49 |
| 9 | Rickaway Energy | 60,600 | 0 | 1 |
| 10 | Formentera Operations LLC | 50,866 | 55,787 | 6 |
| 11 | Ineos Usa Oil & Gas LLC | 48,845 | 43,950 | 1 |
| 12 | Etoco | 35,170 | 14,306 | 1 |
| 13 | Ageron Energy | 31,545 | 87,838 | 2 |
| 14 | Atlas Operating | 30,245 | 0 | 6 |
| 15 | Crescent Energy Operating, LLC | 19,578 | 126,732 | 6 |
| 16 | Mcday Energy | 11,925 | 31,454 | 34 |
| 17 | Sage Energy Company | 4,362 | 42,372 | 4 |
| 18 | White Marlin Operating | 3,335 | 0 | 2 |
| 19 | Hawthorn Energy Partners | 3,268 | 0 | 1 |
| 20 | 907 Oil LLC | 3,020 | 0 | 4 |
| 21 | Bollinger Drilling Company | 3,000 | 0 | 1 |
| 22 | Arrco Operating | 1,973 | 420 | 5 |
| 23 | Bpx Operating Company | 1,117 | 0 | 2 |
| 24 | Hamilton Clay | 1,070 | 0 | 2 |
| 25 | Bridger Oil | 1,051 | 4 | 1 |