Oil & Gas Companies in Ouachita Parish, LA
| Company Name | Company Location | Company Type | Most Recent Production |
| 301 | W. M. Inabnet Agent | | Gas Operator | Oct 1985 |
| 302 | Wayne Pender | | Gas Operator | Jan 2011 |
| 303 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | Feb 2026 |
| 304 | Wells-Battelstein O&G, Inc. | | Gas Operator | Dec 1986 |
| 305 | Westport Petroleum Corporation | | Gas Operator | Sep 1985 |
| 306 | Whitton Company, Inc. | | Oil & Gas Operator | Jul 2020 |
| 307 | Wildhorse Resources, LLC | Houston, TX 77279 | Oil & Gas Operator | Feb 2015 |
| 308 | Will-Drill Production Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Feb 2026 |
| 309 | William E. Daniels | | Gas Operator | Dec 2013 |
| 310 | WM. Inabnet | | Gas Operator | Nov 2024 |
| 311 | Woodrow Wilson | | Gas Operator | Dec 1994 |
| 312 | Wynn-Crosby Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2005 |
| 313 | Zadeck Energy Group, Inc. | | Oil & Gas Operator | Dec 2011 |
Production numbers shown above are only for Ouachita Parish, LA and for the production period listed.