Oil & Gas Companies in Reagan County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | O'Brien, George H. Jr. | Midland, TX 79701 | Oil & Gas Operator | Jun 1994 |
| 2 | O'Ryan Oil And Gas | Odessa, TX 79768 | Oil & Gas Operator | Oct 2025 |
| 3 | Occidental Energy Marketing, Inc. | Houston, TX 77227 | Gas Operator | Sep 2015 |
| 4 | Oden, Robin H., Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 1994 |
| 5 | Odessa Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 6 | Ogris Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 7 | Okla. Magic Circle Energy Corp. | Shawnee, OK 74801 | Oil & Gas Operator | Jul 2004 |
| 8 | Oklahoma Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Aug 2013 |
| 9 | Oklahoma RB Operating Company | Midland, TX 79701 | Oil & Gas Operator | Jan 1998 |
| 10 | Omar Operating Company | Midland, TX 79702 | Oil & Gas Operator | Sep 2013 |
| 11 | Omimex Petroleum Inc | Fort Worth, TX 76120 | Oil & Gas Operator | Aug 2022 |
| 12 | Osborn Heirs Co | San Antonio, TX 78217 | Oil & Gas Operator | Aug 2025 |
| 13 | Otb Operating, LLC | Stanton, TX 79782 | Oil & Gas Operator | Oct 2025 |
| 14 | Overflow Energy, LLC | Perryton, TX 79070 | Oil & Gas Operator | Oct 2025 |
| 15 | Overton Park Oil & Gas LP | Fort Worth, TX 76109 | Oil & Gas Operator | Oct 2025 |
| 16 | Ovintiv USA Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 17 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 18 | Oxy USA WTP LP | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 19 | Oxyrock Operating, LLC | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
Production numbers shown above are only for Reagan County, TX and for the production period listed.