Oil & Gas Companies in Galveston County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Ballard Exploration Company,Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 2 | Baxter, Murphy H. | Houston, TX 77002 | Oil & Gas Operator | Sep 1998 |
| 3 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 4 | Bishop Petroleum Inc. | Houston, TX 77007 | Oil & Gas Operator | Oct 2025 |
| 5 | Black Water Environmental L.L.C. | Texas City, TX 77590 | Oil Operator | Oct 2025 |
| 6 | Blue Ridge Operating Company,Inc | Ashland, OR 97520 | Oil & Gas Operator | Oct 1998 |
| 7 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 8 | BPX Operating Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 9 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 10 | Bridge Oil Production Co., Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 1993 |
| 11 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 12 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 13 | Buttes Resources Company | Houston, TX 77056 | Oil & Gas Operator | May 2007 |
Production numbers shown above are only for Galveston County, TX and for the production period listed.