| 201 | Watt Energy, LLC | Brenham, TX 77834 | Oil & Gas Operator | Apr 2024 |
| 202 | WCS Oil & Gas Corporation | Dallas, TX 75209 | Oil & Gas Operator | Aug 2021 |
| 203 | Weber Energy Corporation | Dallas, TX 75219 | Oil & Gas Operator | Feb 2017 |
| 204 | Westpark Petroleum, Inc. | Austin, TX 78755 | Oil & Gas Operator | Apr 2024 |
| 205 | Wildfire Energy Operating LLC | Houston, TX 77224 | Oil & Gas Operator | Apr 2024 |
| 206 | Wildhorse Resources MNGT Co, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | May 2019 |
| 207 | Williams, Clayton Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | Apr 2024 |
| 208 | Williams, Clayton Energy, L.L.C | Midland, TX 79705 | Oil & Gas Operator | May 1993 |
| 209 | Williams, Clayton W., Jr., Inc. | Midland, TX 79705 | Oil & Gas Operator | Mar 2008 |
| 210 | Winn Exploration Co., Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |
| 211 | Young, John H., Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 2024 |