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.
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| 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 |
The largest oil and gas operators in Atascosa County by reported production are Marathon Oil Company, Eog Resources, and Xto Energy. In total, 25 operators reported 139,299,035 BBL of oil and 110,238,647 Mcf of gas across 741 wells and leases over the last six months. If you own minerals in Atascosa County, these operators are your likely check-writers — Valor tracks production and royalties by tract so you know who owes you.
Start with the operator rankings on this page, then confirm the exact well and operator on your tract through the Atascosa County records and your division orders. Valor's mineral management verifies which operators cover your Atascosa County tracts and reconciles every royalty check to the right well.
Yes — 25 operators reported active production in Atascosa County over the last six months, led by Marathon Oil Company. Activity shifts as operators drill, complete, and sell interests; Valor monitors production and permits so Atascosa County owners can see changes near their tracts.
Operators pay Atascosa County mineral owners a royalty on production, based on a decimal interest set out on a division order. Missed or suspended checks are common after a move, a death, or a title gap. Valor audits Atascosa County royalty statements, recovers suspended funds, and manages the interest so owners are paid correctly.
Valor manages minerals for owners — confirming which of the operators above cover your tracts, auditing every royalty check, recovering suspended and unclaimed funds, and giving you one clear, tax-ready view of what you own in Atascosa County. Valor manages minerals; it never buys them.
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