Oil & Gas Companies in Washington County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Dale Operating Company | Dallas, TX 75207 | Oil & Gas Operator | Feb 2026 |
| 2 | Dallas Petroleum Group, LLC | Dallas, TX 75379 | Oil & Gas Operator | Feb 2026 |
| 3 | Dartex Energy Corporation | Austin, TX 78731 | Oil & Gas Operator | Feb 2026 |
| 4 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Nov 2025 |
| 5 | Dirks Petroleum Company | Beeville, TX 78104 | Oil & Gas Operator | Feb 2026 |
| 6 | Dixie Drilling Company, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Nov 2011 |
| 7 | Dominion Minerals Corporation | Houston, TX 77014 | Oil & Gas Operator | Nov 2009 |
| 8 | Douglas Petroleum Inc. | Spring, TX 77379 | Oil & Gas Operator | Nov 2010 |
| 9 | Dynamic Production, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2026 |
| 10 | Dyson Energy Operating, LLC | Bryan, TX 77802 | Oil & Gas Operator | Jun 2018 |
Production numbers shown above are only for Washington County, TX and for the production period listed.