Oil & Gas Companies in Mississippi
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | W. E. O'Malley Inc. | | Oil & Gas Operator | Jun 1991 |
| 2 | W.I.F.T. Operating, LLC | | Oil & Gas Operator | Oct 2025 |
| 3 | W.S. Red Hancock, Inc. | | Oil Operator | Dec 1986 |
| 4 | Waco Corp | | Oil Operator | Jun 1983 |
| 5 | Wagner Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2025 |
| 6 | Waller Brothers Inc | | Oil & Gas Operator | Jul 2004 |
| 7 | Watchtower Petroleum, LLC | | Oil & Gas Operator | Jun 2025 |
| 8 | Weeks Exploration Company | Houston, TX 77063 | Oil & Gas Operator | Aug 1995 |
| 9 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | Dec 2025 |
| 10 | Wellspring Oil LLC | | Oil Operator | Nov 2025 |
| 11 | Westfield Energy Corp. | | Oil & Gas Operator | Mar 1991 |
| 12 | White River Operating LLC | Gilmer, TX 75644 | Oil & Gas Operator | Oct 2025 |
| 13 | White, Charles R | | Oil Operator | Mar 1987 |
| 14 | Whitehead, Cecil | | Oil Operator | May 1997 |
| 15 | Wickham, R. R. | | Oil Operator | Jan 1980 |
| 16 | Wilcox Energy Company | | Oil & Gas Operator | Oct 2025 |
| 17 | Wilcox Operating Corporation | Shreveport, LA 71115 | Oil & Gas Operator | Dec 2025 |
| 18 | Wilcox Ventures, LLC | | Oil & Gas Operator | Nov 2025 |
| 19 | Will-Drill Production Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Dec 2025 |
| 20 | Williams Producing Co | | Oil & Gas Operator | Sep 2025 |
| 21 | Williams, Kenneth O. Jr | | Oil Operator | Nov 2006 |
| 22 | WLS, Inc | | Oil & Gas Operator | Nov 2025 |
| 23 | Womack Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2025 |
| 24 | Wyble L. Ollie | | Oil & Gas Operator | Dec 1988 |
Production numbers shown above are only for Mississippi and for the production period listed.