Oil & Gas Companies in Zavala County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | R. K. G. Engineering, Inc. | Odessa, TX 79760 | Oil & Gas Operator | Feb 2026 |
| 2 | R.B.S. Oil & Gas Inc. | San Antonio, TX 78278 | Oil & Gas Operator | Feb 2026 |
| 3 | R.C.I. Energy | Alice, TX 78333 | Oil & Gas Operator | Feb 2026 |
| 4 | Red Byrd Oil, LLC | Crystal City, TX 78839 | Oil Operator | Feb 2026 |
| 5 | Regal Petroleum Services | Euless, TX 76039 | Oil & Gas Operator | Aug 2002 |
| 6 | Regency Energy, Inc. | Crystal City, TX 78839 | Oil & Gas Operator | Feb 2026 |
| 7 | Remuda Operating Company | Midland, TX 79711 | Oil & Gas Operator | Feb 2026 |
| 8 | Reo Operating LLC | Austin, TX 78747 | Oil & Gas Operator | Feb 2026 |
| 9 | Retama Oil Corporation | Uvalde, TX 78801 | Oil & Gas Operator | Feb 2026 |
| 10 | Rexcom, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2026 |
| 11 | Rickaway Energy, Corp. | Pleasanton, TX 78064 | Oil & Gas Operator | Feb 2026 |
| 12 | Ricochet Energy, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Feb 2026 |
| 13 | Rife, M. O., Jr. | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 1998 |
| 14 | Riley Exploration, LLC | Blanchard, OK 73010 | Oil & Gas Operator | Feb 2026 |
| 15 | Rio Grand Exploration, LLC | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2026 |
| 16 | Rio-Tex, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2026 |
| 17 | Rivercity Operating, Inc. | Austin, TX 78766 | Oil & Gas Operator | Feb 2026 |
| 18 | Rme Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Nov 2016 |
| 19 | Roma Oil And Gas, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Feb 2026 |
| 20 | Rosewood Resources Inc | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
Production numbers shown above are only for Zavala County, TX and for the production period listed.