| 701 | Welder-Heyer Energy, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Feb 2001 |
| 702 | Welderxp LTD. | San Antonio, TX 78212 | Oil & Gas Operator | Apr 2024 |
| 703 | West Texas Operating Company,LLC | Victoria, TX 77902 | Oil & Gas Operator | Mar 2023 |
| 704 | Western Energy Group, LLC | Leander, TX 78641 | Oil & Gas Operator | Apr 2024 |
| 705 | Westhall Associates, Inc. | Corpus Chrsti, TX 78477 | Oil & Gas Operator | Aug 1997 |
| 706 | Westport Oil & Gas Company LP | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2007 |
| 707 | White Creek Energy | Three Rivers, TX 78071 | Oil & Gas Operator | Apr 2024 |
| 708 | White Oak Operating Company LLC | Houston, TX 77077 | Oil & Gas Operator | Apr 2024 |
| 709 | White Stride LLC | Yukon, OK 73085 | Oil Operator | Apr 2024 |
| 710 | Williamson Oil & Gas, Inc. | Shreveport, LA 71166 | Oil & Gas Operator | Dec 2023 |
| 711 | Winchester Energy Operating Co. | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
| 712 | Winn Exploration Co., Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |
| 713 | Wisenbaker Production Company | Tyler, TX 75702 | Oil & Gas Operator | Oct 2011 |
| 714 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 715 | Wofford, C. J. | El Campo, TX 77437 | Oil & Gas Operator | Apr 2024 |
| 716 | Wolverine Exploration Company | Houston, TX 77002 | Oil & Gas Operator | May 2019 |
| 717 | Wynn-Crosby Operating, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
| 718 | Xeric Oil & Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2014 |
| 719 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Apr 2024 |
| 720 | Yuma E & P Company, Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 2024 |
| 721 | Yuma Petroleum Company | Houston, TX 77027 | Oil & Gas Operator | Aug 2002 |
| 722 | Zachry Exploration, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Apr 2024 |
| 723 | Zilkha Energy Company | Houston, TX 77046 | Oil & Gas Operator | Oct 2002 |
| 724 | Zinke & Trumbo, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2007 |
| 725 | Zinn Petroleum Co. | Houston, TX 77024 | Oil & Gas Operator | Nov 2021 |