| 23001 | Petrotex Louisiana Company | | Oil & Gas Operator | Aug 1998 |
| 23002 | Petrotex, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 23003 | Petrotx Operating, LLC | Kingwood, TX 77339 | Oil & Gas Operator | Apr 2025 |
| 23004 | Petroventures In | | Oil Operator | Apr 1987 |
| 23005 | Petrowater Solutions LLC | Oklahoma City, OK 73102-5643 | Oil Operator | Aug 2016 |
| 23006 | Petrowest | | Oil & Gas Operator | Dec 2001 |
| 23007 | Petrowest Energy Co Inc | | Oil & Gas Operator | Dec 2023 |
| 23008 | Petrox Petroleum Company | Great Falls, MT 59403-0989 | Oil Operator | Feb 2025 |
| 23009 | Petrox Resources Inc | Meeker, CO 81641 | Oil & Gas Operator | Mar 2025 |
| 23010 | Petrox, Inc | Streetsboro, OH 44241 | Oil & Gas Operator | Dec 2024 |
| 23011 | Petrus Oil Company., L.P. | | Oil & Gas Operator | Dec 1989 |
| 23012 | Petrus Operating Co., Inc. | | Oil & Gas Operator | Dec 1986 |
| 23013 | Petsec Energy Inc. | | Oil & Gas Operator | Sep 2012 |
| 23014 | Pettigrew Pumping Service Inc | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2024 |
| 23015 | Pettit Charles Oil Company | Okmulgee, OK 74447-4226 | Oil & Gas Operator | Sep 2018 |
| 23016 | Petx Operating LLC | Sheridan, WY 82801 | Oil Operator | Apr 2025 |
| 23017 | Petx Petroleum C | | Oil Operator | Nov 1993 |
| 23018 | PF Operating Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Aug 2003 |
| 23019 | Pfed Operating | Keller, TX 76248 | Oil Operator | Apr 2025 |
| 23020 | Pfeifer Explorations, LLC | Hays, KS 67601 | Oil Operator | Dec 2024 |
| 23021 | Pfog Operations, LLC | Midland, TX 79710 | Oil Operator | Apr 2025 |
| 23022 | Pfrang, Derek | Wetmore, KS 66550 | Oil Operator | Jul 2022 |
| 23023 | PG&E Resources Company | Houston, TX 77042 | Oil & Gas Operator | May 1995 |
| 23024 | PG&E Resources Offshore Company | Dallas, TX 75206 | Oil & Gas Operator | Oct 1994 |
| 23025 | PG-M International Operating,LLC | Borger, TX 79008 | Oil & Gas Operator | Apr 2025 |
| 23026 | PGC LLC | Newcastle, WY 92701 | Oil Operator | Oct 2023 |
| 23027 | Pgi Operating, LLC | Sweetwater, TX 79556 | Oil Operator | Apr 2025 |
| 23028 | Pgo, Inc. | Houston, TX 77042 | Oil & Gas Operator | Jun 1999 |
| 23029 | PGP Operating, LLC | Vance, AL 35490 | Gas Operator | Feb 2025 |
| 23030 | PH Exploration, Inc. | Houston, TX 77008 | Oil & Gas Operator | Nov 2001 |
| 23031 | Phalanx Petroleum LLC | | Oil & Gas Operator | Jan 2025 |
| 23032 | Pharaoh & Associates, Inc. | Houston, TX 77252 | Oil & Gas Operator | Aug 2002 |
| 23033 | Pharaoh Oil & Gas, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | Apr 2025 |
| 23034 | Pharaoh Oil, LLC | | Oil Operator | Jan 2025 |
| 23035 | Pharoah Bob | Maysville, OK 73057 | Oil & Gas Operator | Jul 1994 |
| 23036 | Pharyn Resources, LLC | Lenexa, KS 66219 | Oil Operator | Jun 2009 |
| 23037 | Phase III Drilling Inc | Wetumka, OK 74883-0333 | Oil & Gas Operator | Jan 2025 |
| 23038 | PHD Oil & Gas Inc | Rush Springs, OK 73082-0218 | Oil & Gas Operator | May 2021 |
| 23039 | Pheffer Oil, L.L.C. | Laredo, TX 78041 | Oil Operator | Jul 2021 |
| 23040 | Pheldon Oil Production Inc | Asher, OK 74826-2629 | Oil & Gas Operator | Dec 2024 |
| 23041 | Phelps Dodge Corp | | Gas Operator | Sep 1957 |
| 23042 | Phere Operating Inc | Spring Branch, TX 78070 | Oil & Gas Operator | Apr 2025 |
| 23043 | Phil Groves Oil | | Oil & Gas Operator | Dec 2024 |
| 23044 | Philco Energy Inc | Lamesa, TX 79331 | Oil & Gas Operator | Mar 2015 |
| 23045 | Philcon Development Co. | Amarillo, TX 79101 | Oil & Gas Operator | Sep 2014 |
| 23046 | Philip B. Berry Oper Co., Inc. | | Oil & Gas Operator | Jun 1990 |
| 23047 | Philip H. McAlmond | | Oil Operator | Dec 2002 |
| 23048 | Philip R. McPharlin | | Oil & Gas Operator | Dec 1995 |
| 23049 | Philip Services/Louisiana Inc. | | Oil Operator | Dec 2000 |
| 23050 | Phillberg Oil Company | | Oil Operator | Mar 2014 |
| 23051 | Phillip & Phyllis Pace-Trustee | | Oil & Gas Operator | Dec 2007 |
| 23052 | Phillip A Guzzino | | Oil Operator | Jan 2000 |
| 23053 | Phillip D. Armstrong | | Oil & Gas Operator | Sep 2018 |
| 23054 | Phillips & Pierson | Olney, TX 76374 | Oil & Gas Operator | Nov 1995 |
| 23055 | Phillips & Ralph M. Ballard | | Oil Operator | Jan 1960 |
| 23056 | Phillips 66 Company | Bartlesville, OK 74004 | Oil & Gas Operator | Aug 1997 |
| 23057 | Phillips Dev Co | | Oil Operator | Dec 2023 |
| 23058 | Phillips Energy, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2018 |
| 23059 | Phillips Explora | | Oil & Gas Operator | Dec 1996 |
| 23060 | Phillips Exploration Company L.C. | Andover, KS 67002 | Oil & Gas Operator | Dec 2024 |
| 23061 | Phillips Exploration Inc | Warrendale, PA 15086 | Oil & Gas Operator | Dec 2012 |
| 23062 | Phillips J L Oil | | Oil Operator | Dec 1992 |
| 23063 | Phillips Jr N J | Seminole, OK 74868-2828 | Oil Operator | Jul 1998 |
| 23064 | Phillips Lake Corp. | | Oil Operator | Dec 1985 |
| 23065 | Phillips Lee Oil | | Oil & Gas Operator | Aug 1995 |
| 23066 | Phillips Margaret E | Newark, OH 43055 | Oil Operator | Dec 1993 |
| 23067 | Phillips Oil Company | Casper, WY 82602 | Oil & Gas Operator | Sep 1986 |
| 23068 | Phillips Oil Company, LLC | Wichita, KS 67211 | Oil Operator | Dec 2024 |
| 23069 | Phillips Oil Operating Co | Enid, OK 73703-4921 | Oil & Gas Operator | May 2019 |
| 23070 | Phillips Oil Properties Inc. | Derby, KS 67037 | Oil Operator | Dec 2024 |
| 23071 | Phillips Operating Co. | Mineral Wells, TX 76067 | Oil & Gas Operator | Jan 2013 |
| 23072 | Phillips Petrole | | Oil & Gas Operator | May 1995 |
| 23073 | Phillips Petroleum Co NW | Farmington, NM 87401 | Oil & Gas Operator | Dec 2002 |
| 23074 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 23075 | Phillips Prod Co | Warrendale, PA 15086-7537 | Oil & Gas Operator | Dec 2011 |
| 23076 | Phillips William | | Oil Operator | Jul 1989 |
| 23077 | Phillips, B. F. Jr., Estate Of | Dallas, TX 75201 | Oil & Gas Operator | Mar 2011 |
| 23078 | Phillips, Bob | Weatherford, TX 76086 | Oil & Gas Operator | Nov 2019 |
| 23079 | Phillips, Jack L. | Gladewater, TX 75647 | Oil & Gas Operator | Dec 1997 |
| 23080 | Phillips, Jack L. Co. | Gladewater, TX 75647 | Oil & Gas Operator | Apr 2025 |
| 23081 | Phillips, Ken | San Angelo, TX 76904 | Oil & Gas Operator | Jun 2021 |
| 23082 | Phillips, Warren P | | Oil & Gas Operator | Apr 2011 |
| 23083 | Philmar | Houston, TX 77269 | Oil Operator | Apr 2025 |
| 23084 | Philmon, Doyle | Paris, AR 72855 | Gas Operator | Jan 2025 |
| 23085 | Philpot Operating Company Inc | Ada, OK 74820-4457 | Oil & Gas Operator | May 2013 |
| 23086 | Philpott Oil & Gas Co Inc | Atwood, KS 67730 | Oil Operator | Aug 2010 |
| 23087 | Phoenic Opr Co Inc-SPD | | Oil Operator | Feb 1993 |
| 23088 | Phoenix - Comco, Inc. | | Oil Operator | Aug 2004 |
| 23089 | Phoenix Crude Oil Company | Westbrook, TX 79565 | Oil Operator | Oct 2004 |
| 23090 | Phoenix Distributing Corp. | Marlboro, NJ 07746 | Oil & Gas Operator | Mar 2003 |
| 23091 | Phoenix Drilling & Exploration | | Oil & Gas Operator | Jun 1982 |
| 23092 | Phoenix Energy LLC | Warren, PA 16365-2302 | Oil & Gas Operator | Dec 2024 |
| 23093 | Phoenix Energy Prod Inc | Freeport, PA 16229-1126 | Oil & Gas Operator | Dec 2024 |
| 23094 | Phoenix Energy, Inc. | Oilmont, MT 59466 | Oil & Gas Operator | Jan 2025 |
| 23095 | Phoenix Exploration Company LP | | Oil & Gas Operator | Sep 2011 |
| 23096 | Phoenix Fund, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Jun 2000 |
| 23097 | Phoenix Hydro Oper Corp | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 23098 | Phoenix Hydrocarbons Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 23099 | Phoenix Hydrocarbons Operating | Midland, TX 79702 | Oil & Gas Operator | Jun 2024 |
| 23100 | Phoenix Hydrocarbons Operating Co | Midland, TX 79702-3638 | Oil & Gas Operator | Jul 2018 |