| 21901 | Pepin Operating Company Inc | Stillwater, OK 74075-9535 | Oil & Gas Operator | May 2009 |
| 21902 | Pepper Development, LLC | Clarksburg, WV 26302 | Oil & Gas Operator | Dec 2021 |
| 21903 | Pepper Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1992 |
| 21904 | Perception Vac Services LLC | Ira, TX 79527 | Oil Operator | Jul 2026 |
| 21905 | Percussion Petroleum Oper II,LLC | Houston, TX 77042 | Oil & Gas Operator | Jul 2023 |
| 21906 | Percussion Petroleum Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2019 |
| 21907 | Perdido Energy Louisiana, LLC | | Oil & Gas Operator | Dec 2024 |
| 21908 | Perdido Energy, LLC | Houston, TX 77251 | Oil & Gas Operator | Jul 2026 |
| 21909 | Perdue-Davidson Oil Co | | Oil & Gas Operator | Dec 2021 |
| 21910 | Perdura Energy L.L.C. | | Oil & Gas Operator | Apr 2018 |
| 21911 | Perdure Petroleum LLC | Allen, TX 75013 | Oil & Gas Operator | Oct 2021 |
| 21912 | Peregrine Energy, Inc. | Spring, TX 77393 | Oil & Gas Operator | Jul 1999 |
| 21913 | Peregrine Petroleum Corp | Oklahoma City, OK 73116-7639 | Oil & Gas Operator | May 2020 |
| 21914 | Peregrine Petroleum Partners, LTD | | Oil & Gas Operator | Oct 2021 |
| 21915 | Peregrine Petroleum PRTNR, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Jul 2026 |
| 21916 | Perenco LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2005 |
| 21917 | Perera Ray & Den | | Oil Operator | Sep 1994 |
| 21918 | Perez, H. F. | Alice, TX 78332 | Oil & Gas Operator | May 2023 |
| 21919 | Performance Energy Partners LLC | Barnsdall, OK 74002-0628 | Oil & Gas Operator | Sep 2025 |
| 21920 | Performance Operating Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Apr 2026 |
| 21921 | Performance Operating Partners, LLC | Shreveport, LA 71164 | Oil & Gas Operator | Jul 2026 |
| 21922 | Performance Petroleum Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Apr 2026 |
| 21923 | Pergerson Energy, L.L.C. | Richmond, VA 23225 | Oil Operator | Jul 2026 |
| 21924 | Perimeter Resource Company | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 21925 | Periscope Operating LLC | McKinney, TX 75069 | Oil & Gas Operator | Jun 2020 |
| 21926 | Perkins & Perkins Oil Co. Inc. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2024 |
| 21927 | Perkins Energy Company | Duncan, OK 73533-3853 | Oil & Gas Operator | Apr 2026 |
| 21928 | Perkins Family Investments LLC | Duncan, OK 73533-3853 | Oil Operator | Apr 2026 |
| 21929 | Perkins Mike | Velma, OK 73091 | Oil & Gas Operator | Jan 2006 |
| 21930 | Perkins Nova | Atwood, OK 74827-9738 | Oil Operator | Feb 2014 |
| 21931 | Perkins Oil & Gas Inc | Pennsboro, WV 26415-0547 | Oil & Gas Operator | Dec 2021 |
| 21932 | Perkins Oil Comp | | Oil Operator | Nov 1988 |
| 21933 | Perkins Oil Ente | | Oil & Gas Operator | Dec 1995 |
| 21934 | Perkins Oil Enterprises, Inc. | Howard, KS 67349 | Oil & Gas Operator | Jan 2025 |
| 21935 | Perkins Oil Properties | | Oil & Gas Operator | Nov 2024 |
| 21936 | Perkins Production Company Inc | Seminole, OK 74868 | Oil & Gas Operator | May 2006 |
| 21937 | Perkins Production Company LLC | Pennsboro, WV 26415 | Oil & Gas Operator | Dec 2021 |
| 21938 | Perkins, Bobby R | | Oil Operator | Mar 2017 |
| 21939 | Perkins, Don & Assoc, Inc | | Oil Operator | Dec 2011 |
| 21940 | Perkins, Earl | | Oil & Gas Operator | Aug 2013 |
| 21941 | Perkins, Eugene O. | Boerne, TX 78015 | Oil & Gas Operator | Jul 2026 |
| 21942 | Perkins-Prothro Company | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2002 |
| 21943 | Perlman,I.H.Oil & Gas Properties | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
| 21944 | Permeator Corp. | | Oil Operator | Sep 1990 |
| 21945 | Permex Petroleum Company, LLC | Dallas, TX 75201 | Oil & Gas Operator | Mar 2024 |
| 21946 | Permex Petroleum Corporation | Graham, TX 76450 | Oil & Gas Operator | Jul 2026 |
| 21947 | Permian Basin Oil Corporation | Odessa, TX 79762 | Oil & Gas Operator | Jul 2026 |
| 21948 | Permian Deep Rock Oil Co., LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 21949 | Permian Development, Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 21950 | Permian Legend LLC | San Marcos, TX 78666 | Oil Operator | Jul 2026 |
| 21951 | Permian Natural Resources | Tyler, TX 75701 | Oil & Gas Operator | Jul 2026 |
| 21952 | Permian Pacific Resources, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Aug 2003 |
| 21953 | Permian Resources Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2026 |
| 21954 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 21955 | Permian Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2018 |
| 21956 | Permian Roustabout & Oilfield Services LLC | Blanchard, OK 73010 | Oil & Gas Operator | Feb 2024 |
| 21957 | Permian Services Co., LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2013 |
| 21958 | Permian Solutions LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 21959 | Permian Surveys | Midland, TX 79707 | Oil & Gas Operator | Oct 1999 |
| 21960 | Permian West Corp. | Odessa, TX 79762 | Oil & Gas Operator | Jul 2026 |
| 21961 | Permok Oil Inc | Shawnee Mission, KS 662082110 | Oil & Gas Operator | Feb 2013 |
| 21962 | Perna Oil & Gas LLC | | Oil & Gas Operator | Nov 2024 |
| 21963 | Pero Farms Inc. | Brant, NY 14027 | Gas Operator | Dec 2025 |
| 21964 | Peroco Oil & Gas | Killbuck, OH 44637 | Oil & Gas Operator | Dec 1987 |
| 21965 | Perrin Oil Compa | | Oil & Gas Operator | Jun 1985 |
| 21966 | Perrin, Mary L | | Oil & Gas Operator | Oct 2005 |
| 21967 | Perry C A And Son Inc | | Oil & Gas Operator | Dec 1994 |
| 21968 | Perry L Larson Operating Co | Dallas, TX 75231-4712 | Oil & Gas Operator | Apr 2026 |
| 21969 | Perry Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Jul 2026 |
| 21970 | Perry Petroleum | | Oil Operator | Jun 1993 |
| 21971 | Perry Point, Inc. | | Oil Operator | Mar 2022 |
| 21972 | Perry Producing Company, Inc. | Ackerly, TX 79713 | Oil & Gas Operator | Jul 2026 |
| 21973 | Perry Production Company Inc | Perry, OK 73077-0412 | Oil & Gas Operator | May 2006 |
| 21974 | Perry, J. R. & Co. | Haskell, TX 79521 | Oil & Gas Operator | Jul 2015 |
| 21975 | Perry, James D | El Dorado, AR 71730 | Oil Operator | Jan 2025 |
| 21976 | Perry, Robert And Elizabeth | Dewittville, NY 14728 | Gas Operator | Dec 2025 |
| 21977 | Perryman Exp. And Prod., LLC | Athens, TX 75751 | Oil & Gas Operator | Jul 2026 |
| 21978 | Perryman Operating Company | Athens, TX 75751 | Oil & Gas Operator | Jul 2026 |
| 21979 | Perryton Operating Co., Inc. | Perryton, TX 79070 | Oil & Gas Operator | Jul 2026 |
| 21980 | Person Oil Co. | Bowie, TX 76230 | Oil & Gas Operator | Sep 2002 |
| 21981 | Person, Claude | Bowie, TX 76230 | Oil & Gas Operator | Apr 2007 |
| 21982 | Person, J.S., Inc. | Longview, TX 75606 | Oil & Gas Operator | Jul 2026 |
| 21983 | Pesco | | Oil & Gas Operator | Oct 1984 |
| 21984 | Pet Processors L.L.C | Painesville, OH 44077 | Oil & Gas Operator | Dec 2025 |
| 21985 | Pet-Ex Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2026 |
| 21986 | Petaluma Oil & Gas | | Oil & Gas Operator | Dec 1999 |
| 21987 | Petco Energy Corporation | Hinsdale, IL 60521 | Oil & Gas Operator | Jul 2026 |
| 21988 | Petco Energy Ser | | Oil Operator | Apr 1986 |
| 21989 | Petco Petroleum Corp | Hinsdale, IL 60521 | Oil & Gas Operator | Apr 2026 |
| 21990 | Petcon Associates LTD | Denver, CO 80202 | Oil & Gas Operator | Sep 2018 |
| 21991 | Pete Caldwell Drilling Co.,Inc | | Oil & Gas Operator | Aug 1991 |
| 21992 | Pete Mills | Midland, TX 79707 | Oil & Gas Operator | Oct 2012 |
| 21993 | Pete'S Pumping & Well Services, LLC | Butler, AL 36904 | Oil & Gas Operator | May 2026 |
| 21994 | Petech Enterprises, Inc. | Houston, TX 77066 | Oil & Gas Operator | Jan 2004 |
| 21995 | Peterland Oil Co | | Oil Operator | Sep 1990 |
| 21996 | Peterman-Sturlese Et Al | | Oil & Gas Operator | Sep 1987 |
| 21997 | Peters Petroleum Corporation | Dallas, TX 75243 | Oil & Gas Operator | Jan 2014 |
| 21998 | Peters Walter J | | Oil & Gas Operator | Jul 1991 |
| 21999 | Petersen Production Company LLC | | Oil & Gas Operator | Dec 2019 |
| 22000 | Peterson & Roberts | Loving, TX 76460 | Oil & Gas Operator | Mar 1998 |