The top 25 oil and gas operators in Frio County, Texas, ranked by monthly oil production. Combined output: 8,515,889 BBL oil and 13,200,831 Mcf gas across 256 reporting wells/leases.
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| Rank | Operator | Oil (BBL) | Gas (Mcf) | Wells |
|---|---|---|---|---|
| 1 | Formentera Operations LLC | 3,286,225 | 2,833,745 | 7 |
| 2 | Javelin Energy | 1,412,247 | 1,925,540 | 73 |
| 3 | Trailblazer Energy Resources LLC | 676,150 | 2,137,766 | 20 |
| 4 | U S Energy Development | 661,401 | 529,261 | 8 |
| 5 | Sydri Operating | 495,634 | 1,344,421 | 1 |
| 6 | Trinity Operating Usg | 491,916 | 3,101,332 | 45 |
| 7 | Rosewood Resources | 450,752 | 159,771 | 21 |
| 8 | Exco Operating Company | 334,516 | 193,933 | 13 |
| 9 | Verdun Oil Ef Ii LLC | 229,491 | 238,140 | 1 |
| 10 | Ageron Energy | 141,156 | 497,899 | 6 |
| 11 | Hilcorp Energy Company | 97,146 | 51,907 | 1 |
| 12 | Brc Operating Company | 64,350 | 0 | 1 |
| 13 | Flint Oak Energy | 46,498 | 0 | 6 |
| 14 | Texas American Resources Company | 32,894 | 42,438 | 3 |
| 15 | Big Foot Oil Company | 20,638 | 0 | 3 |
| 16 | Creative Oil & Gas Operatingllc | 15,916 | 0 | 3 |
| 17 | Fulcrum Energy Operating LLC | 14,168 | 66,360 | 7 |
| 18 | Blackbrush O & G | 12,595 | 77,302 | 19 |
| 19 | Arete Operating Company LLC | 8,414 | 0 | 2 |
| 20 | Mazco Energy | 4,923 | 0 | 3 |
| 21 | Central Gulf Petroleum Inc | 4,884 | 0 | 1 |
| 22 | Britanco | 4,306 | 0 | 6 |
| 23 | Ksabe Energy Partners LLC | 3,670 | 0 | 1 |
| 24 | Kain Petroleum | 3,157 | 1,016 | 4 |
| 25 | Block T Petroleum | 2,842 | 0 | 1 |
The largest oil and gas operators in Frio County by reported production are Formentera Operations LLC, Javelin Energy, and Trailblazer Energy Resources LLC. In total, 25 operators reported 8,515,889 BBL of oil and 13,200,831 Mcf of gas across 256 wells and leases over the last six months. If you own minerals in Frio 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 Frio County records and your division orders. Valor's mineral management verifies which operators cover your Frio County tracts and reconciles every royalty check to the right well.
Yes — 25 operators reported active production in Frio County over the last six months, led by Formentera Operations LLC. Activity shifts as operators drill, complete, and sell interests; Valor monitors production and permits so Frio County owners can see changes near their tracts.
Operators pay Frio 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 Frio 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 Frio County. Valor manages minerals; it never buys them.