Oil & Gas Companies in Wilson County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Daniels, C. W. | Stockdale, TX 78160 | Oil & Gas Operator | Dec 2009 |
| 2 | Dbo Oil Incorporated | Georgetown, TX 78628 | Oil & Gas Operator | Oct 2025 |
| 3 | Deagen, Bill & Sons, LTD. | Stockdale, TX 78160 | Oil Operator | May 2018 |
| 4 | Delcar, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Oct 1995 |
| 5 | Delong, Horace | Pleasanton, TX 78064 | Oil & Gas Operator | Oct 2025 |
| 6 | Delray Oil, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Oct 2025 |
| 7 | Denali Oil & Gas Management, LLC | Houston, TX 77060 | Oil & Gas Operator | Dec 2012 |
| 8 | Dewbre Petroleum Corporation | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Oct 2025 |
| 9 | Dirnett, Inc. | Tuleta, TX 78162 | Oil & Gas Operator | Oct 2025 |
| 10 | DLM Energy | Houston, TX 77058 | Oil & Gas Operator | Sep 1994 |
| 11 | Doege, Donald | La Vernia, TX 78121 | Oil & Gas Operator | Oct 2025 |
| 12 | Dominion Production Company, LLC | Tampa, FL 33606 | Oil & Gas Operator | Oct 2025 |
| 13 | Donoco Oil Company | La Vernia, TX 78121 | Oil & Gas Operator | Oct 2025 |
| 14 | Dorado Oil Company | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Oct 2013 |
| 15 | Double Play Oil & Gas, Inc | Portland, TX 78374 | Oil & Gas Operator | Oct 2025 |
| 16 | Double R Oil Co. | Charlotte, TX 78011 | Oil & Gas Operator | May 2010 |
| 17 | Drachen Oil Company | San Antonio, TX 78258 | Oil & Gas Operator | Oct 2025 |
| 18 | Driscoll S.W.D. Inc. | San Antonio, TX 78229 | Oil & Gas Operator | Oct 2025 |
| 19 | DRS Exploration Inc. | San Antonio, TX 78209 | Oil & Gas Operator | May 1999 |
| 20 | Drum Oil & Gas, Inc. | Houston, TX 77082 | Oil & Gas Operator | Oct 2025 |
| 21 | Drum, Delton | Liberty, TX 77575 | Oil & Gas Operator | Jul 2005 |
| 22 | Dula Production, LLC | Stockdale, TX 78160 | Oil Operator | Oct 2025 |
Production numbers shown above are only for Wilson County, TX and for the production period listed.