201 | Union Gas Operating Company | Houston, TX 77014 | Oil & Gas Operator | Mar 2025 |
202 | Unit Petroleum Company | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2025 |
203 | United Gas Pipe Line Co. | | Oil Operator | Aug 1993 |
204 | Urban Oil & Gas Group, LLC | Plano, TX 75074 | Oil & Gas Operator | Mar 2025 |
205 | Vernon E. Faulconer, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Dec 2024 |
206 | Vinbar Oil & Gas, LLC | | Oil & Gas Operator | Jan 2018 |
207 | Vintage Petroleum, Inc. | Houston, TX 77046 | Oil & Gas Operator | Dec 2024 |
208 | Wainoco Oil & Gas Company | Houston, TX 77024 | Oil & Gas Operator | Dec 2005 |
209 | Warhorse Oil & Gas, LLC | | Oil & Gas Operator | Dec 2018 |
210 | Wes-Tex Drilling Company | Abilene, TX 79604 | Oil & Gas Operator | Jan 2000 |
211 | White Oak Operating Company LLC | Houston, TX 77077 | Oil & Gas Operator | Mar 2025 |
212 | Will-Drill Operating, L.L.C. | Shreveport, LA 71105 | Oil & Gas Operator | Mar 2025 |
213 | Will-Drill Production Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Mar 2025 |
214 | Windrush Operating Co., L.L.C. | Longville, LA 70652 | Oil & Gas Operator | Mar 2025 |
215 | Windrush Operating Company | | Oil & Gas Operator | Jan 2009 |
216 | Woods Petroleum Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 2015 |
217 | Woolf & Magee, Inc. | | Oil & Gas Operator | Oct 1991 |
218 | Zachry Exploration, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Mar 2025 |
219 | Zachry Exploration, LLC | San Antonio, TX 78224 | Oil & Gas Operator | Mar 2025 |
220 | Zachry Exploration, LTD. | San Antonio, TX 78205 | Oil & Gas Operator | Jan 2009 |