| 1 | Q A P Services, Inc. | Cross Plains, TX 76443 | Gas Operator | Jul 2025 |
| 2 | Q Natural Resources, LLC | Jones, OK 73049 | Oil & Gas Operator | Jul 2025 |
| 3 | Qep Energy Company | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 4 | QNK Energy,Inc. | Alice, TX 78333 | Oil & Gas Operator | Aug 2016 |
| 5 | QP, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 6 | QQD Energy, LLC | Houston, TX 77077 | Oil Operator | Jul 2025 |
| 7 | Qstar Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Dec 2016 |
| 8 | Quadrum Energy LLC | Houston, TX 77042 | Oil Operator | Aug 2019 |
| 9 | Quail Creek Oil Co. | Granbury, TX 76048 | Oil & Gas Operator | Aug 2005 |
| 10 | Quail Creek Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 11 | Quail Operating, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Jul 2025 |
| 12 | Quail Ridge Operating LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 13 | Quail Ridge Petroleum LLC | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 14 | Quail Well Service, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jul 2025 |
| 15 | Qualia, C. F. Operating,Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2013 |
| 16 | Quality Operating, Inc. | Dallas, TX 75367 | Oil & Gas Operator | Aug 2002 |
| 17 | Quality Petroleum, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jan 2022 |
| 18 | Quanah Panhandle, LLC | Traverse City, MI 49684 | Oil & Gas Operator | Jul 2025 |
| 19 | Quanico Oil & Gas, Inc. | El Dorado, AR 71730 | Oil & Gas Operator | Jul 2025 |
| 20 | Quantum Investments | Lubbock, TX 79424 | Oil Operator | Jul 2025 |
| 21 | Quantum Oil & Gas Corporation | Oklahoma City, OK 73172 | Oil & Gas Operator | Jul 2025 |
| 22 | Quantum Resources Management LLC | Houston, TX 77010 | Oil & Gas Operator | Apr 2025 |
| 23 | Quarles Drilling Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2008 |
| 24 | Quatro Oil And Gas, Inc. | Joshua, TX 76058 | Oil & Gas Operator | Jul 2025 |
| 25 | Quatros Operating Company | Kilgore, TX 75663 | Oil Operator | Jul 2025 |
| 26 | Quay Valley, Inc. | Midland, TX 79710 | Oil & Gas Operator | Oct 2007 |
| 27 | Queen Sand Operating Co. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 28 | Quemado Energy, L.L.C. | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 29 | Quest Emg, Inc. | Albany, TX 76430 | Oil & Gas Operator | Jul 2025 |
| 30 | Quest Energies Group,LTD. | Shreveport, LA 71106 | Oil & Gas Operator | Mar 1997 |
| 31 | Quest Petroleum Company | Jacksboro, TX 76458 | Oil & Gas Operator | Jul 2025 |
| 32 | Quest Petroleum, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Jul 2025 |
| 33 | Quest Research & Dev. Corp. | Weatherford, TX 76086 | Oil & Gas Operator | Jul 2025 |
| 34 | Quest-Tex Energy Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Jul 2025 |
| 35 | Questa Energy Corporation | Amarillo, TX 79159 | Oil & Gas Operator | Jul 2025 |
| 36 | Questa Oil & Gas Co. | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 37 | Questa Operating Company, LLC | Amarillo, TX 79159 | Oil & Gas Operator | Jul 2025 |
| 38 | Questar Expl. And Prod. Co. | Salt Lake Cty, UT 84145 | Oil & Gas Operator | Jul 2011 |
| 39 | Quicksilver Resources Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2018 |
| 40 | Quien Sabe Operating, LLC | Sundown, TX 79372 | Oil & Gas Operator | Nov 2023 |
| 41 | Quinlan Engineering | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2025 |
| 42 | Quinn, Karen | Round Rock, TX 78681 | Oil Operator | Sep 2018 |
| 43 | Quinque Operating Company | Liberal, KS 67905 | Oil & Gas Operator | Mar 2025 |
| 44 | Quintana Minerals Corporation | Houston, TX 77002 | Oil & Gas Operator | Jan 2003 |
| 45 | Quintana Pet. Corp. | Refugio, TX 78377 | Oil & Gas Operator | Dec 2000 |
| 46 | Quintana Petroleum Services | Houston, TX 77253 | Oil & Gas Operator | Jul 1997 |
| 47 | Quintanilla, Tony C. | Atascosa, TX 78002 | Oil & Gas Operator | Jul 2025 |
| 48 | Quintx Exploration, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Nov 2007 |
| 49 | Quisto Energy Corp. | Kerrville, TX 78029 | Oil & Gas Operator | Jan 1998 |
| 50 | Quisto Expl. & Production, L.C. | Sugar Land, TX 77478 | Oil & Gas Operator | Aug 1998 |
| 51 | Quitman Construction Co., Inc. | Quitman, TX 75783 | Oil & Gas Operator | May 2011 |
| 52 | Quorum Energy Company | Dallas, TX 75201 | Oil & Gas Operator | Jul 2025 |