| 1 | Wagon Wheel Arklatex, LLC | | Oil & Gas Operator | May 2018 |
| 2 | Walker Energy, LLC | | Oil & Gas Operator | Nov 2024 |
| 3 | Webster Energy, Inc. | | Oil & Gas Operator | Jan 1999 |
| 4 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | Oct 2025 |
| 5 | Westland Oil Development Corp. | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 6 | Wheless Industries, Inc. | Shreveport, LA 71101-5301 | Oil & Gas Operator | Sep 2002 |
| 7 | Wheless Industries-Pelto Oil | | Oil & Gas Operator | Dec 1989 |
| 8 | Wildhorse Resources Management Co, LLC | | Oil & Gas Operator | Feb 2018 |
| 9 | Wildhorse Resources, LLC | Houston, TX 77279 | Oil & Gas Operator | Feb 2015 |
| 10 | Will-Drill Operating, L.L.C. | Shreveport, LA 71105 | Oil & Gas Operator | Oct 2025 |
| 11 | Will-Drill Production Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Oct 2025 |
| 12 | Williamson & Smitherman | | Oil & Gas Operator | Dec 2008 |
| 13 | Williamson Oil & Gas, Inc. | Shreveport, LA 71166 | Oil & Gas Operator | Dec 2024 |
| 14 | Williamson Pumping Ser., Inc. | | Oil Operator | Nov 2024 |
| 15 | Willow Springs Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Sep 1999 |
| 16 | Wright Production Company | | Oil Operator | Jun 1990 |
| 17 | WSF, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2013 |