| 23001 | Producers Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Aug 2000 |
| 23002 | Producers Engineering Company | Destin, FL 32541 | Oil & Gas Operator | Sep 1999 |
| 23003 | Producers Environmental Ser. Inc | Borger, TX 79008 | Oil & Gas Operator | Jul 2026 |
| 23004 | Producers Equipm | | Oil Operator | Dec 1996 |
| 23005 | Producers Gas Transmission Inc | | Oil Operator | Nov 2024 |
| 23006 | Producers Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2007 |
| 23007 | Producers Operating Co Inc | Amarillo, TX 79105 | Oil & Gas Operator | Jul 2026 |
| 23008 | Producers Well Service, Inc. | Boling, TX 77420 | Oil & Gas Operator | Jul 2026 |
| 23009 | Producing Royalties Inc | Lubbock, TX BADADDR | Gas Operator | Aug 2004 |
| 23010 | Production Compa | | Oil Operator | Apr 1985 |
| 23011 | Production Consultants, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Feb 2017 |
| 23012 | Production Drill | | Oil Operator | Oct 1994 |
| 23013 | Production Drilling, Inc. | Hays, KS 67601 | Oil Operator | Mar 2026 |
| 23014 | Production Funds Inc | | Oil & Gas Operator | Nov 2001 |
| 23015 | Production Gathering Company, LP | Dallas, TX 75206 | Oil & Gas Operator | Jul 2026 |
| 23016 | Production Gauging Service Inc | | Oil Operator | Feb 1999 |
| 23017 | Production Maintenance Service | | Oil & Gas Operator | Jun 2020 |
| 23018 | Production Manag | | Oil Operator | Dec 1986 |
| 23019 | Production Management Associates | Plano, TX 75075 | Oil & Gas Operator | Jul 2026 |
| 23020 | Production Management Corp. | | Oil & Gas Operator | Jul 1987 |
| 23021 | Production Management Inc | | Oil & Gas Operator | Oct 2006 |
| 23022 | Production Marketing Assoc Inc | Plano, TX 75075 | Oil & Gas Operator | Jul 2026 |
| 23023 | Production Operators Of TX, LLC | Abilene, TX 79605 | Oil & Gas Operator | Jul 2026 |
| 23024 | Production Resources, Inc. | Castroville, TX 78009 | Oil & Gas Operator | Jul 2026 |
| 23025 | Production Service Co. | Lubbock, TX 79490 | Oil & Gas Operator | Oct 2015 |
| 23026 | Production Specialties Company | | Oil & Gas Operator | Dec 2003 |
| 23027 | Production Team | | Oil & Gas Operator | Sep 1991 |
| 23028 | Proex Energy Management, L.L.C. | Spring, TX 77386 | Oil & Gas Operator | Jul 2026 |
| 23029 | Professional Management GRP,Inc. | Boerne, TX 78006 | Oil & Gas Operator | Aug 1999 |
| 23030 | Professional Management Serv | | Oil Operator | Mar 1991 |
| 23031 | Professional Oilfield Services, Inc. | Byesville, OH 43723 | Oil & Gas Operator | Dec 2021 |
| 23032 | Professional Petr. Servs, Inc. | | Oil Operator | Oct 2016 |
| 23033 | Profit Energy Company | Jerusalem, OH 43747 | Oil & Gas Operator | Dec 2025 |
| 23034 | Progas Operating, Inc | Red Rock, TX 78662 | Oil & Gas Operator | Jul 2026 |
| 23035 | Progas Properties, Inc. | New Braunfels, TX 78132 | Oil & Gas Operator | Jul 2026 |
| 23036 | Progenies Operating LLC | Austin, TX 78746 | Oil & Gas Operator | Jul 2026 |
| 23037 | Progress Petroleum Co. | | Oil & Gas Operator | Apr 1993 |
| 23038 | Progressive Gas Services Inc. | Houston, TX 77279 | Oil & Gas Operator | Feb 2002 |
| 23039 | Progressive Oil & Gas | Moxahala, OH 43761 | Oil & Gas Operator | Dec 2025 |
| 23040 | Projj Energy LLC | Sugar Land, TX 77496 | Oil & Gas Operator | Jul 2026 |
| 23041 | Prolific Resources LLC | Wichita, KS 67208 | Oil & Gas Operator | Mar 2026 |
| 23042 | Proline Energy Resources Inc | Sugar Land, TX 77479 | Oil & Gas Operator | Jul 2026 |
| 23043 | Prolithic Energy Company, L.P. | Corpus Christ, TX 78401 | Oil & Gas Operator | Aug 2002 |
| 23044 | Promise Energy Operations, LLC | Texas City, TX 77592 | Oil Operator | Jul 2026 |
| 23045 | Prompt Operating LLC | Velma, OK 73491 | Oil Operator | Apr 2026 |
| 23046 | Pronghorn Management Corporation | Hobbs, NM 88241 | Oil & Gas Operator | Jul 2026 |
| 23047 | Pronghorn Operating LLC | | Oil & Gas Operator | Jan 2023 |
| 23048 | Pronto Services | San Antonio, TX 78209 | Oil & Gas Operator | Jul 2026 |
| 23049 | Propel Energy Company | | Oil Operator | Oct 1991 |
| 23050 | Propel Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2013 |
| 23051 | Property Development Group, Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Jul 2026 |
| 23052 | Property Producing Co. | Columbus, TX 78934 | Gas Operator | Jul 2026 |
| 23053 | Prospctv Invstmnt & TRDG Co, LTD | Tulsa, OK 74170 | Oil & Gas Operator | May 2001 |
| 23054 | Prospect Energy LLC | | Oil & Gas Operator | Jan 2024 |
| 23055 | Prospect Enterprises Inc | Wetumka, OK 74883-0068 | Oil & Gas Operator | Apr 2004 |
| 23056 | Prospect Oil & G | | Oil Operator | Feb 1996 |
| 23057 | Prospect Oil & Gas Corp | Russell, KS 67665 | Oil Operator | Mar 2026 |
| 23058 | Prospecta Energy Group, Inc. | Brownwood, TX 76801 | Oil Operator | Jul 2026 |
| 23059 | Prospective Inv. & Trading Co., LTD., The | Tulsa, OK 74170 | Oil Operator | Dec 2019 |
| 23060 | Prospective Invest & Trad Co LTD | Tulsa, OK 74170 | Oil & Gas Operator | Aug 2005 |
| 23061 | Prospective Investment & Trading | Scottsdale, AZ 85261-4190 | Oil & Gas Operator | Jun 2016 |
| 23062 | Prospective Investment & Trding Co LTD | | Oil & Gas Operator | Sep 2012 |
| 23063 | Prospective Investment And Trading Co (The) | Tulsa, OK 741702320 | Oil & Gas Operator | Jun 2005 |
| 23064 | Prospective Investment And Trading Co., LTD | Tulsa, OK 74170-2320 | Oil & Gas Operator | Apr 2014 |
| 23065 | Prospective Invs | | Oil & Gas Operator | Jun 1994 |
| 23066 | Prospectors LTD., The | Somerset, TX 78069 | Oil & Gas Operator | Jun 2002 |
| 23067 | Prosper Energy Corp. | | Oil & Gas Operator | Oct 1988 |
| 23068 | Prosper Oil & Gas,Inc. | Dallas, TX 75201 | Oil & Gas Operator | Jul 2026 |
| 23069 | Prospera Energy, Inc. | | Oil & Gas Operator | Dec 2005 |
| 23070 | Prosperous Oil & Gas Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Apr 2026 |
| 23071 | Prostar Energy, LLC | | Oil Operator | Sep 2011 |
| 23072 | Protege Energy III LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2024 |
| 23073 | Protege Energy LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jan 2018 |
| 23074 | Proteus Petroleum, Inc. | | Oil & Gas Operator | Nov 1983 |
| 23075 | Protho Energy Service LLC | | Oil & Gas Operator | May 2026 |
| 23076 | Proton Energy, L.L.C. | Houston, TX 77002 | Oil & Gas Operator | Jun 2005 |
| 23077 | Prough A J | Gotebo, OK 73041 | Oil Operator | Apr 2014 |
| 23078 | Provecho Partners | Hays, KS 67601 | Oil Operator | Apr 2005 |
| 23079 | Proven Fuel Exploration, Inc. | | Oil & Gas Operator | Mar 2022 |
| 23080 | Proven Natural Resources LLC | Canton, TX 75103 | Oil & Gas Operator | Jul 2026 |
| 23081 | Proven Oil Production | | Oil Operator | Mar 2002 |
| 23082 | Proven Petroleum, Inc. | Lakewood, CO 80228 | Oil & Gas Operator | May 2026 |
| 23083 | Proven Reserves Management, Inc. | Dallas, TX 75370 | Oil & Gas Operator | Apr 2026 |
| 23084 | Providence Energ | | Oil & Gas Operator | Jul 1988 |
| 23085 | Providence Energy Corporation | Broken Arrow, OK 74013-3783 | Oil & Gas Operator | Feb 1994 |
| 23086 | Providence Energy Servs Inc.-Kelton Op Corp | Andrews, TX 79714 | Oil & Gas Operator | Jun 2026 |
| 23087 | Providence Exploration & Production Inc | Fort Smith, AR 72913-5171 | Gas Operator | Dec 2012 |
| 23088 | Providence Oil & Gas Corp | Tulsa, OK 74135-5463 | Oil & Gas Operator | May 2005 |
| 23089 | Providence Oil Prod. | Freer, TX 78357 | Oil & Gas Operator | Jul 2026 |
| 23090 | Providence Operating LLC Dba Poco Operating | | Oil & Gas Operator | Nov 2025 |
| 23091 | Provident Energy Of Montana, LLC | Cut Bank, MT 59427 | Oil Operator | Apr 2026 |
| 23092 | Provident Oil & Gas Co | Akron, OH 44313 | Oil & Gas Operator | Dec 1989 |
| 23093 | Provident Oil & Gas Corp | Akron, OH 44333 | Oil & Gas Operator | Dec 1991 |
| 23094 | Provident Resources LTD | | Oil & Gas Operator | Dec 1986 |
| 23095 | Provine, B.R. | Wichita, KS 67226 | Oil Operator | Apr 2010 |
| 23096 | Prudent Resources LLC | Houston, TX 77042 | Oil & Gas Operator | Jul 2026 |
| 23097 | Prudential Oil & Gas, Inc. | | Oil & Gas Operator | Jul 1987 |
| 23098 | Prudential Petroleum Co., LTD. | | Oil & Gas Operator | Dec 1990 |
| 23099 | Pruet & Hughes | | Oil & Gas Operator | Jul 1977 |
| 23100 | Pruet & Hughes Operating Co. | | Oil & Gas Operator | May 1981 |