| 3701 | Phoenix Opr Co Inc-PML | | Oil Operator | Dec 1992 |
| 3702 | Phoenix Opr Co Inc-RBF 1985 | | Oil Operator | Dec 1992 |
| 3703 | Phoenix Opr Co Inc-Rvside '85 | | Oil Operator | Dec 1992 |
| 3704 | Phoenix Opr Co Inc-Salem 1985 | | Oil Operator | Dec 1992 |
| 3705 | Phoenix Opr Co Inc-Shemen | | Oil Operator | Dec 1992 |
| 3706 | Phoenix Opr Co Inc-TG I | | Oil Operator | Dec 1992 |
| 3707 | Phoenix Opr Co Inc-TG II | | Oil Operator | Dec 1992 |
| 3708 | Phoenix Opr Co Inc-Vista | | Oil Operator | Dec 1992 |
| 3709 | Phoenix Opr Co Inc-York | | Oil Operator | Dec 1992 |
| 3710 | Phoenix Resources Co | | Oil & Gas Operator | Jun 1984 |
| 3711 | Phoenix-Vi-Roi | | Oil & Gas Operator | Mar 1986 |
| 3712 | Pickens Company, Inc., The | Dallas, TX 75225 | Oil & Gas Operator | Jan 2025 |
| 3713 | Pie La Operating, LLC | | Oil & Gas Operator | Jan 2025 |
| 3714 | Pierce Production Company | Eunice, NM 88231 | Oil & Gas Operator | Oct 2012 |
| 3715 | Pilot Resources, Inc. | | Oil & Gas Operator | May 2013 |
| 3716 | Pine Island Operating, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 3717 | Pine Island Production LLC | | Oil Operator | Jan 2025 |
| 3718 | Pine Pipeline, Inc. | | Oil Operator | Dec 1998 |
| 3719 | Pine Prairie Oil Co., Inc. | | Oil & Gas Operator | Nov 1983 |
| 3720 | Pine Top Energy Inc. | | Oil & Gas Operator | May 1997 |
| 3721 | Pine Wave Energy Partners Operating, LLC | | Gas Operator | Apr 2022 |
| 3722 | Pinnacle Energy, LLC | | Oil & Gas Operator | Jan 2025 |
| 3723 | Pinnacle Operating Company, Inc. | Shreveport, LA 71135 | Oil & Gas Operator | Feb 2026 |
| 3724 | Pintail Minerals Corp. | | Gas Operator | Jun 1992 |
| 3725 | Pintail Oil & Gas, LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2019 |
| 3726 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Dec 2025 |
| 3727 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Dec 2025 |
| 3728 | Pioneer Exploration, LTD. | Houston, TX 77090 | Oil & Gas Operator | Sep 2008 |
| 3729 | Pioneer Natural Res. (GPC), Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 1998 |
| 3730 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Sep 2025 |
| 3731 | Pioneer Prod. Corp. | | Oil & Gas Operator | Jun 1986 |
| 3732 | Pioneer Production Corp-Huggs | | Oil & Gas Operator | Jun 1986 |
| 3733 | Pioneer Resources Producing, L.P | Irving, TX 75039 | Oil & Gas Operator | Feb 2001 |
| 3734 | Pita Oil & Gas, LLC | | Oil Operator | Jul 2004 |
| 3735 | Pittencrieff (Gulf Coast), Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 1998 |
| 3736 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 3737 | Pitts Oil Co-Dallas Prod Inc | | Oil & Gas Operator | Jun 1991 |
| 3738 | Placid Oil Co., Et Al | | Oil & Gas Operator | Jun 1983 |
| 3739 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 3740 | Plains Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2008 |
| 3741 | Planet Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 3742 | Planet Resource Operating, LLC | | Oil & Gas Operator | Nov 2024 |
| 3743 | Plano Corp. | | Oil & Gas Operator | Mar 2005 |
| 3744 | Plantation Oil Company | | Oil Operator | Dec 2006 |
| 3745 | Plantation Operating, LLC | Houston, TX 77041 | Oil & Gas Operator | Nov 2011 |
| 3746 | Platt Oil Production | | Oil & Gas Operator | Jan 2007 |
| 3747 | Playa Oil & Gas, LP | | Oil & Gas Operator | Apr 2009 |
| 3748 | Pledger West Broussard Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 3749 | Ploutos, LLC | | Oil Operator | May 2021 |
| 3750 | Plumb Operating Company, Inc. | | Oil & Gas Operator | Dec 1989 |
| 3751 | Plymouth Resource Group LLC | | Oil & Gas Operator | Dec 1999 |
| 3752 | Plymouth Resource GRP 1998 LLC | | Oil & Gas Operator | Mar 2000 |
| 3753 | Plymouth Resources Group II Inc | | Oil & Gas Operator | May 2007 |
| 3754 | Pmo | Garland, TX 75040 | Oil & Gas Operator | Feb 2018 |
| 3755 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 3756 | Pointe Coupee Energy, Inc | | Oil Operator | Dec 2013 |
| 3757 | Pointe-Clear Oil And Gas, Inc. | | Oil & Gas Operator | Mar 1992 |
| 3758 | Polaris Enterprises Inc | Houston, TX 77057 | Oil & Gas Operator | Oct 1998 |
| 3759 | Polaris-MRM Production Co. | | Oil Operator | Nov 1985 |
| 3760 | Pomfret Production Co., Inc. | | Oil & Gas Operator | Feb 1987 |
| 3761 | Pompano Resource Operator LLC | | Oil & Gas Operator | Dec 2025 |
| 3762 | Ponderosa Oil & Gas, LLC | Houston, TX 77008 | Oil & Gas Operator | Feb 2026 |
| 3763 | Pontchartrain Oil & Gas Corp 2 | | Oil & Gas Operator | Dec 1984 |
| 3764 | Pool Company | | Oil Operator | Dec 2002 |
| 3765 | Pool Production Services | | Oil Operator | Aug 1990 |
| 3766 | Port Hudson Operating Company | | Oil & Gas Operator | Nov 2024 |
| 3767 | Post Oak Production Corp. | | Oil & Gas Operator | Feb 1991 |
| 3768 | Post Petroleum Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2013 |
| 3769 | Poston'S Oil Co. | | Gas Operator | Jan 1993 |
| 3770 | Power Reserves, Inc. | | Oil Operator | Feb 1999 |
| 3771 | Poydras Energy Partners, LLC | | Oil & Gas Operator | Dec 2021 |
| 3772 | Prairie Producing Company | | Oil & Gas Operator | Dec 1992 |
| 3773 | Prayer Oil & Gas Production, LLC | Hallsville, TX 75650 | Oil & Gas Operator | Feb 2026 |
| 3774 | Precio Energy, LLC | Beaumont, TX 77726 | Oil & Gas Operator | Feb 2026 |
| 3775 | Precision Holdings, LLC | | Oil & Gas Operator | Dec 2015 |
| 3776 | Premience Energy LLC | | Oil & Gas Operator | Dec 2024 |
| 3777 | Premience Tepetate LLC | | Oil & Gas Operator | Jul 2014 |
| 3778 | Premier Natural Resources II,LLC | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2015 |
| 3779 | Prentice Oil & Gas Company | | Oil & Gas Operator | Nov 1982 |
| 3780 | Presidio Energy Inc | | Oil & Gas Operator | Jan 1992 |
| 3781 | Presidio Exploration, Inc. | Englewood, CO 80155 | Oil & Gas Operator | May 1999 |
| 3782 | Presidio Oil & Gas, Inc. | | Oil & Gas Operator | Dec 2024 |
| 3783 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2026 |
| 3784 | Pride Exploration, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jul 2015 |
| 3785 | Primary Energy Co. | | Gas Operator | Jul 1999 |
| 3786 | Primary Fuels Inc | Midland, TX 79701-4410 | Oil & Gas Operator | Mar 1991 |
| 3787 | Prime Natural Resources, Inc. | Houston, TX 77042 | Oil & Gas Operator | Jun 2007 |
| 3788 | Prime Operating Company | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 3789 | Prime Rock Resources La LLC | | Oil & Gas Operator | Dec 2024 |
| 3790 | Primos & Luffey Gas Co. | | Gas Operator | May 2021 |
| 3791 | Primos Oil & Gas Corp. | | Gas Operator | Dec 2001 |
| 3792 | Primos Production | | Oil & Gas Operator | Dec 2024 |
| 3793 | Primos-Pennzoil JV | | Gas Operator | Feb 2005 |
| 3794 | Primos-Tomlinson | | Gas Operator | Sep 1996 |
| 3795 | Pritchard Engineering | | Oil & Gas Operator | Mar 1989 |
| 3796 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 3797 | Probe Offshore, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2009 |
| 3798 | Procell & Procell | | Oil & Gas Operator | Jan 2003 |
| 3799 | Procell Oil & Gas | | Oil & Gas Operator | Nov 2000 |
| 3800 | Producers Gas Transmission Inc | | Oil Operator | Nov 2024 |