| 801 | Perkins-Prothro Company | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2002 |
| 802 | Perlman,I.H.Oil & Gas Properties | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
| 803 | Permeator Corp. | | Oil Operator | Sep 1990 |
| 804 | Permex Petroleum Company, LLC | Dallas, TX 75201 | Oil & Gas Operator | Mar 2024 |
| 805 | Permex Petroleum Corporation | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 806 | Permian Basin Oil Corporation | Odessa, TX 79762 | Oil & Gas Operator | Sep 2026 |
| 807 | Permian Deep Rock Oil Co., LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 808 | Permian Development, Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 2008 |
| 809 | Permian Legend LLC | San Marcos, TX 78666 | Oil Operator | Sep 2026 |
| 810 | Permian Natural Resources | Tyler, TX 75701 | Oil & Gas Operator | Sep 2026 |
| 811 | Permian Pacific Resources, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Aug 2003 |
| 812 | Permian Resources Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Sep 2026 |
| 813 | Permian Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 814 | Permian Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2018 |
| 815 | Permian Roustabout & Oilfield Services LLC | Blanchard, OK 73010 | Oil & Gas Operator | Feb 2024 |
| 816 | Permian Services Co., LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2013 |
| 817 | Permian Solutions LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 818 | Permian Surveys | Midland, TX 79707 | Oil & Gas Operator | Oct 1999 |
| 819 | Permian West Corp. | Odessa, TX 79762 | Oil & Gas Operator | Sep 2026 |
| 820 | Permok Oil Inc | Shawnee Mission, KS 662082110 | Oil & Gas Operator | Feb 2013 |
| 821 | Perna Oil & Gas LLC | | Oil & Gas Operator | Nov 2024 |
| 822 | Pero Farms Inc. | Brant, NY 14027 | Gas Operator | Dec 2025 |
| 823 | Peroco Oil & Gas | Killbuck, OH 44637 | Oil & Gas Operator | Dec 1987 |
| 824 | Perrin Oil Compa | | Oil & Gas Operator | Jun 1985 |
| 825 | Perrin, Mary L | | Oil & Gas Operator | Oct 2005 |
| 826 | Perry C A And Son Inc | | Oil & Gas Operator | Dec 1994 |
| 827 | Perry Jamie | Ada, OK 74820 | Oil Operator | May 2026 |
| 828 | Perry L Larson Operating Co | Dallas, TX 75231-4712 | Oil & Gas Operator | May 2026 |
| 829 | Perry Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 830 | Perry Petroleum | | Oil Operator | Jun 1993 |
| 831 | Perry Point, Inc. | | Oil Operator | Mar 2022 |
| 832 | Perry Producing Company, Inc. | Ackerly, TX 79713 | Oil & Gas Operator | Sep 2026 |
| 833 | Perry Production Company Inc | Perry, OK 73077-0412 | Oil & Gas Operator | May 2006 |
| 834 | Perry, J. R. & Co. | Haskell, TX 79521 | Oil & Gas Operator | Jul 2015 |
| 835 | Perry, James D | El Dorado, AR 71730 | Oil Operator | Jan 2025 |
| 836 | Perry, Robert And Elizabeth | Dewittville, NY 14728 | Gas Operator | Dec 2025 |
| 837 | Perryman Exp. And Prod., LLC | Athens, TX 75751 | Oil & Gas Operator | Sep 2026 |
| 838 | Perryman Operating Company | Athens, TX 75751 | Oil & Gas Operator | Sep 2026 |
| 839 | Perryton Operating Co., Inc. | Perryton, TX 79070 | Oil & Gas Operator | Sep 2026 |
| 840 | Person Oil Co. | Bowie, TX 76230 | Oil & Gas Operator | Sep 2002 |
| 841 | Person, Claude | Bowie, TX 76230 | Oil & Gas Operator | Apr 2007 |
| 842 | Person, J.S., Inc. | Longview, TX 75606 | Oil & Gas Operator | Sep 2026 |
| 843 | Perun Energy LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2026 |
| 844 | Pesco | | Oil & Gas Operator | Oct 1984 |
| 845 | Pet Processors L.L.C | Painesville, OH 44077 | Oil & Gas Operator | Dec 2025 |
| 846 | Pet-Ex Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2026 |
| 847 | Petco Energy Corporation | Hinsdale, IL 60521 | Oil & Gas Operator | Sep 2026 |
| 848 | Petco Energy Ser | | Oil Operator | Apr 1986 |
| 849 | Petco Petroleum Corp | Hinsdale, IL 60521 | Oil & Gas Operator | May 2026 |
| 850 | Petcon Associates LTD | Denver, CO 80202 | Oil & Gas Operator | Sep 2018 |
| 851 | Pete Caldwell Drilling Co.,Inc | | Oil & Gas Operator | Aug 1991 |
| 852 | Pete Mills | Midland, TX 79707 | Oil & Gas Operator | Oct 2012 |
| 853 | Pete'S Pumping & Well Services, LLC | Butler, AL 36904 | Oil & Gas Operator | Jun 2026 |
| 854 | Petech Enterprises, Inc. | Houston, TX 77066 | Oil & Gas Operator | Jan 2004 |
| 855 | Peterland Oil Co | | Oil Operator | Sep 1990 |
| 856 | Peterman-Sturlese Et Al | | Oil & Gas Operator | Sep 1987 |
| 857 | Peters Petroleum Corporation | Dallas, TX 75243 | Oil & Gas Operator | Jan 2014 |
| 858 | Peters Walter J | | Oil & Gas Operator | Jul 1991 |
| 859 | Petersen Production Company LLC | | Oil & Gas Operator | Dec 2019 |
| 860 | Peterson & Roberts | Loving, TX 76460 | Oil & Gas Operator | Mar 1998 |
| 861 | Peterson Energy Management Inc | | Oil Operator | Aug 2010 |
| 862 | Peterson Energy Operating | | Oil Operator | Dec 2025 |
| 863 | Peterson Energy Operating Inc | Loveland, CO 80537 | Oil & Gas Operator | Jul 2026 |
| 864 | Peterson Oil And Gas LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | Sep 2026 |
| 865 | Peterson Oil Co LLC | Centerville, KS 66014 | Oil Operator | Apr 2026 |
| 866 | Peterson, Don Company | Loving, TX 76460 | Oil & Gas Operator | Jul 2017 |
| 867 | Peterson, Thomas M. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2025 |
| 868 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2026 |
| 869 | Petex Incorporat | | Oil Operator | Sep 1991 |
| 870 | Petr Corporation | | Oil Operator | Apr 1988 |
| 871 | Petr Exploration | | Oil Operator | Apr 1995 |
| 872 | Petra Oleum Corp. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 873 | Petra Petroleum Inc | Littleton, CO 80160-0319 | Oil & Gas Operator | Jun 2005 |
| 874 | Petra Petroleum Management LLC | Hotchkiss, CO 81419-0369 | Gas Operator | Sep 2014 |
| 875 | Petra, Inc. | | Oil & Gas Operator | Apr 1987 |
| 876 | Petral Exploration Inc LLC | Denver, CO 80217 | Oil & Gas Operator | May 2007 |
| 877 | Petral Exploration LLC | Denver, CO 80217-5083 | Oil & Gas Operator | Dec 2001 |
| 878 | Petralis Energy Resources, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 879 | Petram Oil And Gas, LLC | Richmond, TX 77407 | Oil Operator | Sep 2026 |
| 880 | Petrie Enterpris | | Oil & Gas Operator | Sep 1986 |
| 881 | Petrie, Stanley D. | Pratt, KS 67124 | Gas Operator | Aug 1995 |
| 882 | Petrik Oil | Bartlesville, OK 74006 | Oil Operator | Nov 1996 |
| 883 | Petrik Oil - Jim | | Oil Operator | Apr 1995 |
| 884 | Petro "E", LLC | | Oil & Gas Operator | Feb 2010 |
| 885 | Petro 2000 Exploration Co. | Katy, TX 77450 | Oil & Gas Operator | Nov 2011 |
| 886 | Petro 85 Incorpo | | Oil Operator | Mar 1993 |
| 887 | Petro Capital Resources LLC | | Oil & Gas Operator | Jun 2026 |
| 888 | Petro Davis Inc | Oklahoma City, OK 73142-1807 | Oil & Gas Operator | Jan 2013 |
| 889 | Petro Delta | Rockdale, TX 76567 | Oil Operator | Sep 2026 |
| 890 | Petro Dev Corp | Bridgeport, WV 26330-0026 | Oil & Gas Operator | Dec 2013 |
| 891 | Petro Drilling & Producing Co. | Archer City, TX 76351 | Oil & Gas Operator | Apr 1997 |
| 892 | Petro Drilling Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1993 |
| 893 | Petro Dynamics C | | Oil & Gas Operator | Sep 1988 |
| 894 | Petro Energies I | | Oil & Gas Operator | Apr 1991 |
| 895 | Petro Energy Inc | Farmington, NM 87499 | Oil & Gas Operator | Sep 2025 |
| 896 | Petro Evaluation Services Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2023 |
| 897 | Petro Evaluation SVC Inc | Wooster, OH 44691-1223 | Oil & Gas Operator | Dec 2008 |
| 898 | Petro Harvester Operating Company, LLC | | Oil & Gas Operator | Nov 2022 |
| 899 | Petro Hi-Tech, Inc. | Pasadena, TX 77505 | Oil & Gas Operator | Feb 2008 |
| 900 | Petro Holdings, Inc. | Spencer, WV 252760000 | Oil & Gas Operator | Dec 2021 |