| 101 | Suncoast Technical Service Inc | Plano, TX 75074-5438 | Oil Operator | Mar 2005 |
| 102 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Aug 2025 |
| 103 | Thunder Oil & Gas, LLC | Ardmore, OK 73402 | Oil & Gas Operator | Sep 2025 |
| 104 | Tide West Oil Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2021 |
| 105 | Tri-State Pipeline Service Inc | Ninnekah, OK 73067-0189 | Oil & Gas Operator | Mar 2011 |
| 106 | Twisted Resources Inc | Blanchard, OK 73010-8463 | Oil & Gas Operator | Aug 2025 |
| 107 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
| 108 | United Production Company LLC | Edmond, OK 73003 | Oil & Gas Operator | Sep 2025 |
| 109 | Urban Oil & Gas Group, LLC | Plano, TX 75074 | Oil & Gas Operator | Dec 2025 |
| 110 | Vintage Petroleum, Inc. | Houston, TX 77046 | Oil & Gas Operator | Aug 2025 |
| 111 | Vitol Inc. | Houston, TX 77098 | Oil & Gas Operator | Sep 2023 |
| 112 | Walker Keith F | Ardmore, OK 73401 | Oil & Gas Operator | Jan 2019 |
| 113 | Westphal Oil & Gas Inc | Fort Smith, AR 72901-2199 | Oil & Gas Operator | Feb 2015 |
| 114 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 115 | Williams Petroleum Company, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 2025 |
| 116 | Wilson Well Service | Loco, OK 73442-0114 | Oil & Gas Operator | Mar 2018 |
| 117 | WM Energy LLC | Asher, OK 74826 | Oil & Gas Operator | Aug 2025 |
| 118 | Wolf Howard Lee | Burneyville, OK 73430-9617 | Oil & Gas Operator | Jun 2000 |