| 801 | Pepper Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1992 |
| 802 | Percussion Petroleum Oper II,LLC | Houston, TX 77042 | Oil & Gas Operator | Jul 2023 |
| 803 | Percussion Petroleum Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2019 |
| 804 | Perdido Energy Louisiana, LLC | | Oil & Gas Operator | Dec 2024 |
| 805 | Perdido Energy, LLC | Houston, TX 77251 | Oil & Gas Operator | Feb 2026 |
| 806 | Perdue-Davidson Oil Co | | Oil & Gas Operator | Dec 2021 |
| 807 | Perdura Energy L.L.C. | | Oil & Gas Operator | Apr 2018 |
| 808 | Perdure Petroleum LLC | Allen, TX 75013 | Oil & Gas Operator | Oct 2021 |
| 809 | Peregrine Energy, Inc. | Spring, TX 77393 | Oil & Gas Operator | Jul 1999 |
| 810 | Peregrine Petroleum Corp | Oklahoma City, OK 73116-7639 | Oil & Gas Operator | May 2020 |
| 811 | Peregrine Petroleum Partners, LTD | | Oil & Gas Operator | Oct 2021 |
| 812 | Peregrine Petroleum PRTNR, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 813 | Perenco LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2005 |
| 814 | Perera Ray & Den | | Oil Operator | Sep 1994 |
| 815 | Perez, H. F. | Alice, TX 78332 | Oil & Gas Operator | May 2023 |
| 816 | Perfection Oil & Gas Co | | Gas Operator | Sep 1937 |
| 817 | Performance Energy Partners LLC | Barnsdall, OK 74002-0628 | Oil & Gas Operator | Sep 2025 |
| 818 | Performance Operating Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Nov 2025 |
| 819 | Performance Operating Partners, LLC | Shreveport, LA 71164 | Oil & Gas Operator | Feb 2026 |
| 820 | Performance Petroleum Company LLC | Barnsdall, OK 74002 | Oil & Gas Operator | Nov 2025 |
| 821 | Pergerson Energy, L.L.C. | Richmond, VA 23225 | Oil Operator | Feb 2026 |
| 822 | Perimeter Resource Company | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 823 | Periscope Operating LLC | McKinney, TX 75069 | Oil & Gas Operator | Jun 2020 |
| 824 | Perkins & Perkins Oil Co. Inc. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2024 |
| 825 | Perkins Energy Company | Duncan, OK 73533-3853 | Oil & Gas Operator | Nov 2025 |
| 826 | Perkins Mike | Velma, OK 73091 | Oil & Gas Operator | Jan 2006 |
| 827 | Perkins Nova | Atwood, OK 74827-9738 | Oil Operator | Feb 2014 |
| 828 | Perkins Oil & Gas Inc | Pennsboro, WV 26415-0547 | Oil & Gas Operator | Dec 2021 |
| 829 | Perkins Oil Comp | | Oil Operator | Nov 1988 |
| 830 | Perkins Oil Ente | | Oil & Gas Operator | Dec 1995 |
| 831 | Perkins Oil Enterprises, Inc. | Howard, KS 67349 | Oil & Gas Operator | Sep 2025 |
| 832 | Perkins Oil Properties | | Oil & Gas Operator | Nov 2024 |
| 833 | Perkins Production Company Inc | Seminole, OK 74868 | Oil & Gas Operator | May 2006 |
| 834 | Perkins Production Company LLC | Pennsboro, WV 26415 | Oil & Gas Operator | Dec 2021 |
| 835 | Perkins, A. E. | Augusta, KS 67010 | Gas Operator | Aug 1989 |
| 836 | Perkins, Bobby R | | Oil Operator | Mar 2017 |
| 837 | Perkins, Don & Assoc, Inc | | Oil Operator | Dec 2011 |
| 838 | Perkins, Earl | | Oil & Gas Operator | Aug 2013 |
| 839 | Perkins, Eugene O. | Boerne, TX 78015 | Oil & Gas Operator | Feb 2026 |
| 840 | Perkins-Prothro Company | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2002 |
| 841 | Perlman,I.H.Oil & Gas Properties | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
| 842 | Permeator Corp. | | Oil Operator | Sep 1990 |
| 843 | Permex Petroleum Company, LLC | Dallas, TX 75201 | Oil & Gas Operator | Mar 2024 |
| 844 | Permex Petroleum Corporation | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 845 | Permian Basin Oil Corporation | Odessa, TX 79762 | Oil & Gas Operator | Feb 2026 |
| 846 | Permian Brine Sales, Inc. | Odessa, TX 79763 | Gas Operator | May 2004 |
| 847 | Permian Deep Rock Oil Co., LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 848 | Permian Development, Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 849 | Permian Legend LLC | San Marcos, TX 78666 | Oil Operator | Feb 2026 |
| 850 | Permian Natural Resources | Tyler, TX 75701 | Oil & Gas Operator | Feb 2026 |
| 851 | Permian Pacific Resources, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Aug 2003 |
| 852 | Permian Reef, LLC | Greenwood, IN 46143 | Gas Operator | Mar 2011 |
| 853 | Permian Resources Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 854 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 855 | Permian Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2018 |
| 856 | Permian Roustabout & Oilfield Services LLC | Blanchard, OK 73010 | Oil & Gas Operator | Feb 2024 |
| 857 | Permian Services Co., LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2013 |
| 858 | Permian Solutions LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 859 | Permian Surveys | Midland, TX 79707 | Oil & Gas Operator | Oct 1999 |
| 860 | Permian West Corp. | Odessa, TX 79762 | Oil & Gas Operator | Feb 2026 |
| 861 | Permico Corporation | Stafford, TX 77477 | Oil & Gas Operator | Nov 2003 |
| 862 | Permok Oil Inc | Shawnee Mission, KS 662082110 | Oil & Gas Operator | Feb 2013 |
| 863 | Perna Oil & Gas LLC | | Oil & Gas Operator | Nov 2024 |
| 864 | Pero Farms Inc. | Brant, NY 14027 | Gas Operator | Dec 2024 |
| 865 | Peroco Oil & Gas | Killbuck, OH 44637 | Oil & Gas Operator | Dec 1987 |
| 866 | Perpetual Energy LLC | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2012 |
| 867 | Perrin Oil Compa | | Oil & Gas Operator | Jun 1985 |
| 868 | Perrin, Mary L | | Oil & Gas Operator | Oct 2005 |
| 869 | Perrin, Nuel | | Gas Operator | Jun 2003 |
| 870 | Perry C A And Son Inc | | Oil & Gas Operator | Dec 1994 |
| 871 | Perry L Larson Operating Co | Dallas, TX 75231-4712 | Oil & Gas Operator | Nov 2025 |
| 872 | Perry Oil Company | | Oil & Gas Operator | Sep 2009 |
| 873 | Perry Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 874 | Perry Petroleum | | Oil Operator | Jun 1993 |
| 875 | Perry Point, Inc. | | Oil Operator | Mar 2022 |
| 876 | Perry Producing Company, Inc. | Ackerly, TX 79713 | Oil & Gas Operator | Feb 2026 |
| 877 | Perry Production Company Inc | Perry, OK 73077-0412 | Oil & Gas Operator | May 2006 |
| 878 | Perry, J. R. & Co. | Haskell, TX 79521 | Oil & Gas Operator | Jul 2015 |
| 879 | Perry, James D | El Dorado, AR 71730 | Oil Operator | Jan 2025 |
| 880 | Perry, Robert And Elizabeth | Dewittville, NY 14728 | Gas Operator | Dec 2024 |
| 881 | Perryman Exp. And Prod., LLC | Athens, TX 75751 | Oil & Gas Operator | Feb 2026 |
| 882 | Perryman Operating Company | Athens, TX 75751 | Oil & Gas Operator | Feb 2026 |
| 883 | Perryton Operating Co., Inc. | Perryton, TX 79070 | Oil & Gas Operator | Feb 2026 |
| 884 | Person Oil Co. | Bowie, TX 76230 | Oil & Gas Operator | Sep 2002 |
| 885 | Person, Claude | Bowie, TX 76230 | Oil & Gas Operator | Apr 2007 |
| 886 | Person, J.S., Inc. | Longview, TX 75606 | Oil & Gas Operator | Feb 2026 |
| 887 | Pertex Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jul 1996 |
| 888 | Pesco | | Oil & Gas Operator | Oct 1984 |
| 889 | Pet Processors L.L.C | Painesville, OH 44077 | Oil & Gas Operator | Dec 2024 |
| 890 | Pet-Ex Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2025 |
| 891 | Petaluma Oil & Gas | | Oil & Gas Operator | Dec 1999 |
| 892 | Petco Energy Corporation | Hinsdale, IL 60521 | Oil & Gas Operator | Feb 2026 |
| 893 | Petco Energy Ser | | Oil Operator | Apr 1986 |
| 894 | Petco Petroleum Corp | Hinsdale, IL 60521 | Oil & Gas Operator | Nov 2025 |
| 895 | Petcon Associates LTD | Denver, CO 80202 | Oil & Gas Operator | Sep 2018 |
| 896 | Pete Caldwell Drilling Co.,Inc | | Oil & Gas Operator | Aug 1991 |
| 897 | Pete Mills | Midland, TX 79707 | Oil & Gas Operator | Oct 2012 |
| 898 | Pete'S Pumping & Well Services, LLC | Butler, AL 36904 | Oil & Gas Operator | Dec 2025 |
| 899 | Petech Enterprises, Inc. | Houston, TX 77066 | Oil & Gas Operator | Jan 2004 |
| 900 | Peter W. Herbst | | Gas Operator | Mar 1998 |