Oil & Gas Companies in Lafourche Parish, LA
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | D & C Operating, Inc. | | Oil & Gas Operator | Apr 1999 |
| 2 | D90 Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
| 3 | Damson Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Mar 2005 |
| 4 | Daniel Oil Company | | Oil & Gas Operator | Jan 1983 |
| 5 | Davis Oil Company | Denver, CO 80202 | Oil & Gas Operator | Jun 1988 |
| 6 | Daylight Petroleum LLC | Houston, TX 77052 | Oil & Gas Operator | Oct 2025 |
| 7 | Delmar Operating, Inc. | Houston, TX 77010 | Oil & Gas Operator | Oct 1996 |
| 8 | Delta Royalties LLC | | Oil & Gas Operator | Dec 2024 |
| 9 | Denbury Management, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Dec 1999 |
| 10 | Denovo Oil & Gas, Inc. | Houston, TX 77210 | Oil & Gas Operator | May 1995 |
| 11 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2025 |
| 12 | Dew Oil And Gas Co.,Inc. | | Oil & Gas Operator | Dec 1989 |
| 13 | Diasu Oil & Gas Co., Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
| 14 | Dimension Energy Co., L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 15 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
| 16 | Dorchester Exploration, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 2001 |
| 17 | Douglas Edwards | | Oil Operator | Nov 1993 |
| 18 | Dune Operating Company | Dallas, TX 75201 | Oil & Gas Operator | Jun 2016 |
| 19 | Dynamic Exploration, Inc. | | Oil & Gas Operator | Oct 2003 |
Production numbers shown above are only for Lafourche Parish, LA and for the production period listed.