| 2001 | Pueblo Oil & Gas Inc. | | Gas Operator | Dec 2003 |
| 2002 | Pueblo Petroleum Inc | Roswell, NM 88202 | Oil & Gas Operator | Feb 1997 |
| 2003 | Pullco Services LLC | | Oil Operator | Jun 2024 |
| 2004 | Pullen Oil & Gas | Richardson, TX 75080 | Oil & Gas Operator | Dec 1997 |
| 2005 | Pullers Oil Company LLC | Blackwell, OK 74631-9512 | Oil & Gas Operator | Sep 2024 |
| 2006 | Pulliam Dennis L | Mannford, OK 74044-9733 | Oil & Gas Operator | Nov 2001 |
| 2007 | Pulliam IVan Henry | Coweta, OK 74429 | Oil & Gas Operator | Dec 2017 |
| 2008 | Pulliam Ken D | Bristow, OK 74010-8648 | Oil & Gas Operator | Feb 2012 |
| 2009 | Pulliam Melvin | Mannford, OK 74044 | Oil & Gas Operator | Jul 2019 |
| 2010 | Pullin Lease Service, Inc. | Taft, TX 78390 | Oil & Gas Operator | Nov 2024 |
| 2011 | Puls Operating Company | Boerne, TX 78006 | Oil & Gas Operator | Nov 2024 |
| 2012 | Puls, W. L. | Houston, TX 77084 | Oil & Gas Operator | Sep 2002 |
| 2013 | Puma Energy Inc | Kerrville, TX 78028-9300 | Gas Operator | Dec 1999 |
| 2014 | Puma Petroleum Corporation | Tulsa, OK 74152-0129 | Oil Operator | Feb 2004 |
| 2015 | Puma Petroleum I | | Oil & Gas Operator | Dec 1988 |
| 2016 | Puma, Inc. | | Oil & Gas Operator | Oct 2000 |
| 2017 | Pump It Up LLC | Owasso, OK 74055-0723 | Oil Operator | Jun 2024 |
| 2018 | Pump-N-Production, LLC | Poth, TX 78147 | Oil Operator | Nov 2024 |
| 2019 | Pumpco Services | Gainesville, TX 76240 | Oil & Gas Operator | Mar 2008 |
| 2020 | Pumpelly, Raphael SR | Pac Palisades, CA 90272 | Oil & Gas Operator | Feb 1991 |
| 2021 | Pumping Services Inc | Seminole, OK 74868-2421 | Oil & Gas Operator | Feb 2023 |
| 2022 | Pumpjack 7, LLC | Boerne, TX 78015 | Oil Operator | Nov 2024 |
| 2023 | Pumpjak Oil Company, LLC | Weatherford, TX 76088 | Oil & Gas Operator | Jun 2018 |
| 2024 | Pup Oil Company | | Oil Operator | Dec 1996 |
| 2025 | Purdy, Sean P. & Deanna M. | Cassadaga, NY 14718 | Gas Operator | Dec 2023 |
| 2026 | Pure Energy Operating, Inc. | Dallas, TX 75235 | Oil & Gas Operator | Jul 2012 |
| 2027 | Pure Energy Prod | | Oil Operator | Sep 1992 |
| 2028 | Pure Energy Systems Inc | Olive Branch, MS 38654-9041 | Gas Operator | Aug 2024 |
| 2029 | Pure Oil Co | | Oil & Gas Operator | Dec 1996 |
| 2030 | Pure Petroleum LLC | Gillette, WY 82717 | Oil & Gas Operator | Aug 2011 |
| 2031 | Pure Resources, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2006 |
| 2032 | Purewest Resources Inc | Pinedale, WY 82941 | Oil & Gas Operator | Sep 2024 |
| 2033 | Purex Energy LLC | Fort Worth, TX 76101 | Oil & Gas Operator | Oct 2015 |
| 2034 | Purkeypile, Doyle | Eureka, KS 67045 | Oil Operator | Oct 1995 |
| 2035 | Purple Top Oil & Gas Co. | Seymour, TX 76380 | Oil & Gas Operator | Jan 2017 |
| 2036 | Pursley Gas Company | Pampa, TX 79066 | Gas Operator | Nov 2024 |
| 2037 | Pursley, John | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2024 |
| 2038 | Pursue Energy Corp | | Gas Operator | Sep 2016 |
| 2039 | Pursuit Oil & Gas STX, LLC | Houston, TX 77024 | Oil & Gas Operator | Nov 2024 |
| 2040 | Pursuit Oil & Gas, LLC | Houston, TX 77024 | Gas Operator | Sep 2019 |
| 2041 | Purvis Oil Corp | Midland, TX 79702 | Oil & Gas Operator | Jul 1994 |
| 2042 | Purvis Operating Co. | Midland, TX 79710 | Oil & Gas Operator | Nov 2024 |
| 2043 | Purvis, J. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1994 |
| 2044 | Putnam Energy LLC | | Oil Operator | Sep 2014 |
| 2045 | Putnam Oil Production | Abilene, TX 79603 | Oil & Gas Operator | Jun 2002 |
| 2046 | Putnam Phyllis L | Bartlesville, OK 74006-7326 | Oil & Gas Operator | May 2021 |
| 2047 | Putnam, Joe Oil Company | Abilene, TX 79606 | Oil & Gas Operator | Nov 2024 |
| 2048 | Putnam, Paul Oil | Orla, TX 79770 | Oil & Gas Operator | Nov 2024 |
| 2049 | Putnam, William H | Marietta, OH 45750 | Oil & Gas Operator | Dec 2022 |
| 2050 | PV Of MS Inc | | Oil & Gas Operator | Jan 2019 |
| 2051 | PV Oil Services, LLC | Abilene, TX 79601 | Oil & Gas Operator | Nov 2024 |
| 2052 | Pve Oil Corp Inc | Blairsville, PA 15717-7961 | Oil & Gas Operator | Dec 2023 |
| 2053 | PVR Gas Processing LLC | Irving, TN 75039 | Oil & Gas Operator | Feb 2015 |
| 2054 | PWR Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Nov 2024 |
| 2055 | PXP Gulf Coast Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 2056 | PXP Gulf Coast LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2004 |
| 2057 | PXP Louisiana L.L.C. | | Oil & Gas Operator | Nov 2010 |
| 2058 | PXP Texas Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2007 |
| 2059 | Pybas Robert | Wanette, OK 74878 | Oil Operator | Apr 2014 |
| 2060 | Pyle Petroleum | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Dec 1996 |
| 2061 | Pyle Petroleum, Inc. | Tyler, TX 75703 | Oil & Gas Operator | Nov 2024 |
| 2062 | Pyote Disposal Company | Pyote, TX 79777 | Oil Operator | Nov 2024 |
| 2063 | Pyramid Corporat | | Oil & Gas Operator | Aug 1995 |
| 2064 | Pyramid Energy Inc | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2012 |
| 2065 | Pyramid Enterprises | Muenster, TX 76252 | Oil & Gas Operator | Nov 2024 |
| 2066 | Pyramid Exploration | Houston, TX 77241 | Oil & Gas Operator | Sep 1995 |
| 2067 | Pyramid Gas Co | Midland, TX 79707 | Oil Operator | Nov 2024 |
| 2068 | Pyramid Oil & Ga | | Oil & Gas Operator | Sep 1987 |
| 2069 | Pyramid Oil Co. | Litchfield PK, AZ 85340 | Oil & Gas Operator | Jan 2018 |
| 2070 | Pyramid Oil Of America, Inc. | Nichols Hill, OK 73116 | Oil & Gas Operator | Aug 2024 |
| 2071 | Pyramid Petroleum, Inc. | | Oil & Gas Operator | May 1992 |
| 2072 | Pyramid Petroleum, Inc.-La Div | | Oil Operator | Jun 1997 |
| 2073 | Pyramid Production Co. | Abilene, TX 79608 | Oil & Gas Operator | Jun 1994 |
| 2074 | Pyro Energy Corp | Kingwood, TX 77339-2102 | Oil & Gas Operator | Mar 1998 |
| 2075 | Pywell Venture A | | Oil Operator | Apr 1988 |