| 24001 | Q. F. Sagdahl | | Oil Operator | Feb 2019 |
| 24002 | Q.E.D., Inc. | | Oil & Gas Operator | Dec 1987 |
| 24003 | QB Energy Operating LLC | | Oil & Gas Operator | Feb 2025 |
| 24004 | Qep Energy Company | Midland, TX 79701 | Oil & Gas Operator | Jan 2025 |
| 24005 | Qep Uinta Basin Inc | Salt Lake City, UT 84145-0601 | Oil & Gas Operator | Mar 2007 |
| 24006 | QNK Energy,Inc. | Alice, TX 78333 | Oil & Gas Operator | Aug 2016 |
| 24007 | QP, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 24008 | Qstar Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Dec 2016 |
| 24009 | Quad J Oil & Gas LLC | Crescent, OK 73028 | Oil & Gas Operator | Feb 2025 |
| 24010 | Quad L Oil Company | | Oil & Gas Operator | Dec 2024 |
| 24011 | Quad Operating Company | Bulverde, TX 78163 | Oil & Gas Operator | Jan 2025 |
| 24012 | Quad Operating, LLC | Garnett, KS 66032 | Oil Operator | Dec 2019 |
| 24013 | Quadel Energy Co | | Oil & Gas Operator | Feb 1994 |
| 24014 | Quadrant Exploration, Inc. | Marietta, OH 45750 | Oil & Gas Operator | Dec 2000 |
| 24015 | Quadren Cryogenic Process LTD. | | Gas Operator | Dec 2024 |
| 24016 | Quadrum Energy LLC | Houston, TX 77042 | Oil Operator | Aug 2019 |
| 24017 | Quail Creek Oil Co. | Granbury, TX 76048 | Oil & Gas Operator | Aug 2005 |
| 24018 | Quail Creek Oil Corporation | Houston, TX 77024 | Oil & Gas Operator | Apr 2025 |
| 24019 | Quail Creek Petro MGMT Corp | Oklahoma City, OK 73134 | Oil & Gas Operator | Aug 2013 |
| 24020 | Quail Energy Corp | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2010 |
| 24021 | Quail Oil & Gas LC | Garden City, KS 67846 | Oil & Gas Operator | Jan 2025 |
| 24022 | Quail Operating, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Apr 2025 |
| 24023 | Quail Ridge Operating LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 24024 | Quail Ridge Petroleum LLC | Midland, TX 79710 | Oil & Gas Operator | Apr 2025 |
| 24025 | Quail Well Service, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2025 |
| 24026 | Quaker State Corporation | Houston, TX 77002-2806 | Oil & Gas Operator | Dec 2013 |
| 24027 | Quaker State Oil Ref Corp | North Canton, OH 44720-1541-1541 | Oil & Gas Operator | Dec 1994 |
| 24028 | Qualia, C. F. Operating,Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2013 |
| 24029 | Quality Hospitality Services LLC | | Oil & Gas Operator | Mar 2013 |
| 24030 | Quality Natural Gas, LLC | Allen, KY 41601 | Oil & Gas Operator | Dec 2023 |
| 24031 | Quality Oil & Gas Corp | Alliance, OH 44601 | Oil & Gas Operator | Dec 2024 |
| 24032 | Quality Operating, Inc. | Dallas, TX 75367 | Oil & Gas Operator | Aug 2002 |
| 24033 | Quality Petroleum Corp. | | Oil & Gas Operator | Apr 1990 |
| 24034 | Quality Petroleum, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jan 2022 |
| 24035 | Quality Production Co Of Stigler Inc | Stigler, OK 74462-0635 | Gas Operator | Feb 2013 |
| 24036 | Quality Production Corp | Hobbs, NM BADADDR | Oil Operator | Jan 2002 |
| 24037 | Quality Production SVC. LLC | | Oil & Gas Operator | Jul 2005 |
| 24038 | Quality Well Service, Inc. | Pratt, KS 67124 | Oil Operator | Feb 2006 |
| 24039 | Qualls Operating* R C | | Oil & Gas Operator | Mar 2005 |
| 24040 | Qualmay Development LLC | Cody, WY 82414 | Oil & Gas Operator | Jun 2023 |
| 24041 | Quanah Company | Tulsa, OK 74159-0469 | Oil & Gas Operator | May 2020 |
| 24042 | Quanah Panhandle, LLC | Traverse City, MI 49684 | Oil & Gas Operator | Apr 2025 |
| 24043 | Quanah Petroleum, Inc. | | Oil & Gas Operator | Sep 1983 |
| 24044 | Quanico Oil & Gas, Inc. | El Dorado, AR 71730 | Oil & Gas Operator | Apr 2025 |
| 24045 | Quantent Energy Partners Operating LLC | | Gas Operator | Dec 2024 |
| 24046 | Quantum Investments | Lubbock, TX 79424 | Oil Operator | Apr 2025 |
| 24047 | Quantum Oil & Gas Corporation | Oklahoma City, OK 73172 | Oil & Gas Operator | Apr 2025 |
| 24048 | Quantum Operating Company | Denver, CO 80201 | Oil & Gas Operator | Dec 2012 |
| 24049 | Quantum Resources Management LLC | Houston, TX 77010 | Oil & Gas Operator | Jan 2025 |
| 24050 | Quantum Resources MGMT, LLC | | Oil & Gas Operator | Nov 2014 |
| 24051 | Quarles Drilling Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2008 |
| 24052 | Quasha Oil Co. | | Oil & Gas Operator | Feb 1998 |
| 24053 | Quatro Oil And Gas, Inc. | Joshua, TX 76058 | Oil & Gas Operator | Apr 2025 |
| 24054 | Quatro Oil Ventures | | Oil Operator | Dec 2016 |
| 24055 | Quatro Osos E&P, LLC | Roswell, NM 88202 | Oil Operator | Feb 2025 |
| 24056 | Quatros Operating Company | Kilgore, TX 75663 | Oil Operator | Apr 2025 |
| 24057 | Quay Valley, Inc. | Midland, TX 79710 | Oil & Gas Operator | Oct 2007 |
| 24058 | Queen Sand Operating Co. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 24059 | Quemado Energy, L.L.C. | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 24060 | Quench Oil & Gas Inc | Plano, TX 75075-2902 | Oil & Gas Operator | Apr 2009 |
| 24061 | Querio Enterprises Inc | Leechburg, PA 15656-0553 | Gas Operator | Dec 2012 |
| 24062 | Quest 4 Oil LLC | Duncan, OK 73533-1289 | Oil & Gas Operator | May 2020 |
| 24063 | Quest Cherokee LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2024 |
| 24064 | Quest Development Co. | | Oil Operator | Dec 2024 |
| 24065 | Quest Emg, Inc. | Albany, TX 76430 | Oil & Gas Operator | Apr 2025 |
| 24066 | Quest Energies | | Oil & Gas Operator | Mar 1997 |
| 24067 | Quest Energies Group,LTD. | Shreveport, LA 71106 | Oil & Gas Operator | Mar 1997 |
| 24068 | Quest Energies, L.L.C. | | Oil & Gas Operator | Jan 2025 |
| 24069 | Quest Energy LLC | Salina, KS 67401 | Oil Operator | Dec 2024 |
| 24070 | Quest Energy Service Inc. | Chanute, KS 66720 | Oil & Gas Operator | Jan 2009 |
| 24071 | Quest Exploration L.L.C. | | Oil & Gas Operator | Jul 2014 |
| 24072 | Quest Operating LLC | Sheridan, WY 82801 | Gas Operator | Sep 2008 |
| 24073 | Quest Petroleum Company | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2025 |
| 24074 | Quest Petroleum Corporation | Reno, NV 89570 | Oil Operator | Apr 1998 |
| 24075 | Quest Petroleum, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Apr 2025 |
| 24076 | Quest Property Inc | Yukon, OK 73099 | Oil & Gas Operator | Jan 2025 |
| 24077 | Quest Research & Dev. Corp. | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2025 |
| 24078 | Quest-Tex Energy Operating, LLC | Dallas, TX 75225 | Oil & Gas Operator | Apr 2025 |
| 24079 | Questa Energy Corporation | Amarillo, TX 79159 | Oil & Gas Operator | Apr 2025 |
| 24080 | Questa Oil & Gas Co. | Tulsa, OK 74170 | Oil & Gas Operator | Mar 2015 |
| 24081 | Questa Operating Company, LLC | Amarillo, TX 79159 | Oil & Gas Operator | Apr 2025 |
| 24082 | Questa Petro Co | Pittsburgh, PA 15241-0863 | Oil & Gas Operator | Dec 2023 |
| 24083 | Questa Petroleum Co | Greensburg, PA 15601 | Oil & Gas Operator | Dec 2006 |
| 24084 | Questar Energy Company | Salt Lake C Ity, UT 84147 | Gas Operator | May 1991 |
| 24085 | Questar Energy Trading | Salt Lake City, UT 84145-0601 | Oil & Gas Operator | Mar 2020 |
| 24086 | Questar Expl. And Prod. Co. | Salt Lake Cty, UT 84145 | Oil & Gas Operator | Jul 2011 |
| 24087 | Questar Explor & Prod Co | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2017 |
| 24088 | Questar Exploration And Production Company Division Of Questar Urc Company | Oklahoma City, OK 73112 | Oil & Gas Operator | Feb 2023 |
| 24089 | Quick Draw Tank Trucks Inc | Lamont, OK 74643-0158 | Oil Operator | Oct 1997 |
| 24090 | Quicksilver Resources Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2018 |
| 24091 | Quien Sabe Operating, LLC | Sundown, TX 79372 | Oil & Gas Operator | Nov 2023 |
| 24092 | Quiet Sun Investments, Inc. | | Oil & Gas Operator | Sep 2012 |
| 24093 | Quinex Energy Corp | Bountiful, UT 84010 | Oil & Gas Operator | Feb 2025 |
| 24094 | Quinlan Engineering | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2025 |
| 24095 | Quinn Energy Corp | MT Vernon, IN 47620 | Oil & Gas Operator | Oct 1999 |
| 24096 | Quinn Oil Produc | | Oil Operator | Dec 1987 |
| 24097 | Quinn, Karen | Round Rock, TX 78681 | Oil Operator | Sep 2018 |
| 24098 | Quinoco Petroleum Inc | | Oil & Gas Operator | Dec 1990 |
| 24099 | Quinque Oil, LLC | Shelby, MT 59474 | Oil Operator | Oct 2024 |
| 24100 | Quinque Operatin | | Oil & Gas Operator | Jul 1994 |