| 22001 | Petra Petroleum Management LLC | Hotchkiss, CO 81419-0369 | Gas Operator | Sep 2014 |
| 22002 | Petra, Inc. | | Oil & Gas Operator | Apr 1987 |
| 22003 | Petral Exploration Inc LLC | Denver, CO 80217 | Oil & Gas Operator | May 2007 |
| 22004 | Petral Exploration LLC | Denver, CO 80217-5083 | Oil & Gas Operator | Dec 2001 |
| 22005 | Petralis Energy Resources, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2024 |
| 22006 | Petram Oil And Gas, LLC | Richmond, TX 77407 | Oil Operator | Sep 2024 |
| 22007 | Petrie, Stanley D. | Pratt, KS 67124 | Gas Operator | Aug 1995 |
| 22008 | Petrik Oil | Bartlesville, OK 74006 | Oil Operator | Nov 1996 |
| 22009 | Petrik Oil - Jim | | Oil Operator | Apr 1995 |
| 22010 | Petro "E", LLC | | Oil & Gas Operator | Feb 2010 |
| 22011 | Petro 2000 Exploration Co. | Katy, TX 77450 | Oil & Gas Operator | Nov 2011 |
| 22012 | Petro 85 Incorpo | | Oil Operator | Mar 1993 |
| 22013 | Petro Capital Resources LLC | | Oil & Gas Operator | Jun 2024 |
| 22014 | Petro Davis Inc | Oklahoma City, OK 73142-1807 | Oil & Gas Operator | Jan 2013 |
| 22015 | Petro Delta | Rockdale, TX 76567 | Oil Operator | Sep 2024 |
| 22016 | Petro Dev Corp | Bridgeport, WV 26330-0026 | Oil & Gas Operator | Dec 2013 |
| 22017 | Petro Drilling & Producing Co. | Archer City, TX 76351 | Oil & Gas Operator | Apr 1997 |
| 22018 | Petro Drilling Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1993 |
| 22019 | Petro Dynamics C | | Oil & Gas Operator | Sep 1988 |
| 22020 | Petro Energies I | | Oil & Gas Operator | Apr 1991 |
| 22021 | Petro Energy Inc | Farmington, NM 87499 | Oil & Gas Operator | May 2024 |
| 22022 | Petro Evaluation Services Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 22023 | Petro Harvester Operating Company, LLC | | Oil & Gas Operator | Nov 2022 |
| 22024 | Petro Hi-Tech, Inc. | Pasadena, TX 77505 | Oil & Gas Operator | Feb 2008 |
| 22025 | Petro Holdings, Inc. | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2021 |
| 22026 | Petro Hunt Inc Of Kentucky | | Oil & Gas Operator | Dec 2006 |
| 22027 | Petro Lions, LLC | Somerset, TX 78069 | Oil Operator | Sep 2024 |
| 22028 | Petro Locators I | | Oil & Gas Operator | Dec 1995 |
| 22029 | Petro Locators, Inc. | Pratt, KS 67124 | Oil & Gas Operator | May 2024 |
| 22030 | Petro Mex Resources | | Oil & Gas Operator | Feb 2024 |
| 22031 | Petro Mex, LLC | Farmington, NM 87499 | Oil & Gas Operator | Feb 2024 |
| 22032 | Petro North LTD | Smethport, PA 16749-0742 | Oil & Gas Operator | Dec 2023 |
| 22033 | Petro Nova | | Oil Operator | Dec 2000 |
| 22034 | Petro Oil Produc | | Oil Operator | Aug 1989 |
| 22035 | Petro Oilfield Equipment Inc | Drumright, OK 74030-1233 | Oil & Gas Operator | Dec 2010 |
| 22036 | Petro Operating Company | | Oil & Gas Operator | Aug 2022 |
| 22037 | Petro Operating Company LLC | | Oil & Gas Operator | Jun 2024 |
| 22038 | Petro Pak Corpor | | Oil Operator | Aug 1988 |
| 22039 | Petro Plex Oil Co Inc. | Homosassa, FL 34448 | Oil & Gas Operator | Jul 2020 |
| 22040 | Petro Producers Corporation | | Oil & Gas Operator | Mar 1993 |
| 22041 | Petro Productions,Petrotec Production,Inc Dba | Wichita, KS 67202 | Oil Operator | Aug 1993 |
| 22042 | Petro Quest Inc | Guysville, OH 45735 | Oil & Gas Operator | Dec 2023 |
| 22043 | Petro Resources, Inc. | Fulton, TX 78358 | Oil & Gas Operator | Sep 2024 |
| 22044 | Petro River Operating, LLC | New York City, NY 10017 | Oil & Gas Operator | Jul 2011 |
| 22045 | Petro Search Exploration Corp | | Oil & Gas Operator | May 1993 |
| 22046 | Petro Speed Inc | Norman, OK 73069-8116 | Oil & Gas Operator | Mar 2015 |
| 22047 | Petro SVC Partners Inc | Indiana, PA 15701-8556 | Oil & Gas Operator | Dec 2023 |
| 22048 | Petro Ventures Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2019 |
| 22049 | Petro Vest Operating LLC | | Oil Operator | Aug 2013 |
| 22050 | Petro Vest, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 2014 |
| 22051 | Petro Warrior LLC | Wichita, KS 67206 | Oil & Gas Operator | Jun 2024 |
| 22052 | Petro-Assets Corporation | | Oil & Gas Operator | Feb 2000 |
| 22053 | Petro-Beth Oil & Gas, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2006 |
| 22054 | Petro-Canada Resources (USA) | | Oil & Gas Operator | Dec 2009 |
| 22055 | Petro-Canada Resources (USA) Inc | Denver, CO 80202-472 | Oil & Gas Operator | Feb 2010 |
| 22056 | Petro-Chem Operating Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2024 |
| 22057 | Petro-Flow, Inc | | Gas Operator | Dec 2021 |
| 22058 | Petro-Go, Inc. | | Oil & Gas Operator | Mar 1996 |
| 22059 | Petro-Guard Company, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2014 |
| 22060 | Petro-Guard Production,L.L.C. | Houston, TX 77063 | Oil & Gas Operator | Dec 2023 |
| 22061 | Petro-Haley | Borger, TX 79008 | Oil & Gas Operator | Sep 2024 |
| 22062 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
| 22063 | Petro-Hunt Dakota, LLC | | Oil & Gas Operator | Jul 2024 |
| 22064 | Petro-Hunt Permian, LLC | Dallas, TX 75201 | Oil & Gas Operator | Sep 2024 |
| 22065 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Sep 2024 |
| 22066 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 22067 | Petro-Lud Inc. | | Oil & Gas Operator | Jul 2024 |
| 22068 | Petro-Mac Corporation | Tulsa, OK 74103 | Oil & Gas Operator | May 2024 |
| 22069 | Petro-Management Assoc., Inc. | Edmond, OK 73083-2346 | Oil & Gas Operator | Jun 2007 |
| 22070 | Petro-Management Inc | | Oil Operator | Dec 1998 |
| 22071 | Petro-Mark, Inc. | St Petersburg, FL 33701 | Oil & Gas Operator | Dec 2021 |
| 22072 | Petro-Met Energy LLC | Edmond, OK 73034-1237 | Oil Operator | Jun 2024 |
| 22073 | Petro-Raider LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2024 |
| 22074 | Petro-Smith Operating LLC | Houston, TX 77005 | Oil & Gas Operator | Sep 2024 |
| 22075 | Petro-Technology | | Oil & Gas Operator | Aug 1991 |
| 22076 | Petro-Tex Energy & Expl.Co.,Inc. | Llano, TX 78643 | Oil & Gas Operator | Sep 2024 |
| 22077 | Petro-Ventures, Inc. - Miss. | | Oil & Gas Operator | Apr 2009 |
| 22078 | Petro-West Corporation | Lubbock, TX 79404 | Oil & Gas Operator | Oct 2001 |
| 22079 | Petro-X Corporation | Houston, TX 77092 | Oil & Gas Operator | Jul 2002 |
| 22080 | Petrobal Omega 1, LLC | Little Elm, TX 75068 | Oil & Gas Operator | Sep 2024 |
| 22081 | Petrobank Opr Co | Denver, CO 80202-4675 | Gas Operator | Dec 1992 |
| 22082 | Petrocan, Inc. | | Oil & Gas Operator | Apr 1998 |
| 22083 | Petrocana,Inc. | | Oil & Gas Operator | Aug 1993 |
| 22084 | Petrocarbon Energy Corporation | | Oil Operator | Sep 1996 |
| 22085 | Petrocarbon Energy Trust | | Oil Operator | Sep 1996 |
| 22086 | Petrocat Innovations, LLC | Forney, TX 75126 | Oil Operator | Sep 2024 |
| 22087 | Petroco Inc | | Oil & Gas Operator | Nov 1996 |
| 22088 | Petrocoastal, Inc. | Frisco, TX 75036 | Oil & Gas Operator | Sep 2024 |
| 22089 | Petrocon Inc | Delaware, OH 43015-7147-7147 | Oil & Gas Operator | Dec 2010 |
| 22090 | Petrocorp | | Oil & Gas Operator | Oct 1992 |
| 22091 | Petrocorp Acquisition Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2002 |
| 22092 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 22093 | Petrocorp Incorporated,A TX.Corp | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2005 |
| 22094 | Petroda Oil & Gas LLC | Edmond, OK 73054 | Oil & Gas Operator | Feb 2023 |
| 22095 | Petrodata Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2024 |
| 22096 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | May 2024 |
| 22097 | Petrodril Inc | Farmington, NM 87401 | Oil & Gas Operator | Jan 1987 |
| 22098 | Petrodudes | Crescent, OK 73028-8706 | Oil & Gas Operator | Feb 2024 |
| 22099 | Petroel | Marietta, OH 45750 | Oil & Gas Operator | Dec 2000 |
| 22100 | Petroflow Energy Corporation | Tulsa, OK 74119-5405 | Oil & Gas Operator | Oct 2016 |