Oil & Gas Companies in Grimes County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Feb 2026 |
| 2 | Deep Rock Resources, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Sep 2026 |
| 3 | Devon Energy Production Company, L.P. | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2026 |
| 4 | DNR Oil And Gas, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Jul 2026 |
| 5 | Dorchester Resources LP | Oklahoma City, OK 73154-8879 | Oil & Gas Operator | Aug 2021 |
| 6 | Douglas Petroleum Inc. | Spring, TX 77379 | Oil & Gas Operator | Nov 2010 |
| 7 | Drill Partners Management, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2010 |
| 8 | Dynamic Petroleum Res., Inc. | Houston, TX 77068 | Oil & Gas Operator | Jul 1994 |
Production numbers shown above are only for Grimes County, TX and for the production period listed.