| 3601 | Plymouth Resource GRP 1998 LLC | | Oil & Gas Operator | Mar 2000 |
| 3602 | Plymouth Resources Group II Inc | | Oil & Gas Operator | May 2007 |
| 3603 | Pmo | Garland, TX 75040 | Oil & Gas Operator | Feb 2018 |
| 3604 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 3605 | Pointe Coupee Energy, Inc | | Oil Operator | Dec 2013 |
| 3606 | Polaris Enterprises Inc | Houston, TX 77057 | Oil & Gas Operator | Oct 1998 |
| 3607 | Polaris-MRM Production Co. | | Oil Operator | Nov 1985 |
| 3608 | Pomfret Production Co., Inc. | | Oil & Gas Operator | Feb 1987 |
| 3609 | Pompano Resource Operator LLC | | Oil & Gas Operator | Aug 2024 |
| 3610 | Ponderosa Oil & Gas, LLC | Houston, TX 77008 | Oil & Gas Operator | Nov 2024 |
| 3611 | Pontchartrain Oil & Gas Corp 2 | | Oil & Gas Operator | Dec 1984 |
| 3612 | Pool Company | | Oil Operator | Dec 2002 |
| 3613 | Pool Production Services | | Oil Operator | Aug 1990 |
| 3614 | Port Hudson Operating Company | | Oil & Gas Operator | Jun 2024 |
| 3615 | Post Petroleum Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2013 |
| 3616 | Power Reserves, Inc. | | Oil Operator | Feb 1999 |
| 3617 | Poydras Energy Partners, LLC | | Oil & Gas Operator | Dec 2021 |
| 3618 | Prairie Producing Company | | Oil & Gas Operator | Dec 1992 |
| 3619 | Prayer Oil & Gas Production, LLC | Hallsville, TX 75650 | Oil & Gas Operator | Nov 2024 |
| 3620 | Precio Energy, LLC | Beaumont, TX 77726 | Oil & Gas Operator | Nov 2024 |
| 3621 | Precision Holdings, LLC | | Oil & Gas Operator | Dec 2015 |
| 3622 | Premience Energy LLC | | Oil & Gas Operator | May 2024 |
| 3623 | Premience Tepetate LLC | | Oil & Gas Operator | Jul 2014 |
| 3624 | Premier Natural Resources II,LLC | Tulsa, OK 74105 | Oil & Gas Operator | Feb 2015 |
| 3625 | Prentice Oil & Gas Company | | Oil & Gas Operator | Nov 1982 |
| 3626 | Presidio Energy, Inc. | | Oil & Gas Operator | Jan 1992 |
| 3627 | Presidio Exploration, Inc. | Englewood, CO 80155 | Oil & Gas Operator | May 1999 |
| 3628 | Presidio Oil & Gas, Inc. | | Oil & Gas Operator | Jun 2024 |
| 3629 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2024 |
| 3630 | Pride Exploration, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2015 |
| 3631 | Primary Energy Co. | | Gas Operator | Jul 1999 |
| 3632 | Primary Fuels Inc | Midland, TX 79701-4410 | Oil & Gas Operator | Mar 1991 |
| 3633 | Prime Natural Resources, Inc. | Houston, TX 77042 | Oil & Gas Operator | Jun 2007 |
| 3634 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Nov 2024 |
| 3635 | Prime Rock Resources La LLC | | Oil & Gas Operator | Jun 2024 |
| 3636 | Primos Oil & Gas Corp. | | Gas Operator | Dec 2001 |
| 3637 | Primos Production | | Oil & Gas Operator | Jun 2024 |
| 3638 | Primos-Pennzoil JV | | Gas Operator | Feb 2005 |
| 3639 | Pritchard Engineering | | Oil & Gas Operator | Mar 1989 |
| 3640 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 3641 | Probe Offshore, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2009 |
| 3642 | Procell & Procell | | Oil & Gas Operator | Jan 2003 |
| 3643 | Producers Gas Transmission Inc | | Oil Operator | May 2024 |
| 3644 | Production Funds Inc | | Oil & Gas Operator | Nov 2001 |
| 3645 | Production Gauging Service Inc | | Oil Operator | Feb 1999 |
| 3646 | Production Management Corp. | | Oil & Gas Operator | Jul 1987 |
| 3647 | Proex Energy Management, L.L.C. | Spring, TX 77386 | Oil & Gas Operator | Nov 2024 |
| 3648 | Professional Petr. Servs, Inc. | | Oil Operator | Oct 2016 |
| 3649 | Progenies Operating LLC | Austin, TX 78746 | Oil & Gas Operator | Nov 2024 |
| 3650 | Progress Petroleum Co. | | Oil & Gas Operator | Apr 1993 |
| 3651 | Prospective Investment & Trding Co LTD | | Oil & Gas Operator | Aug 2012 |
| 3652 | Prosper Energy Corporation | | Oil & Gas Operator | Oct 1988 |
| 3653 | Prospera Energy, Inc. | | Oil & Gas Operator | Dec 2005 |
| 3654 | Prostar Energy, LLC | | Oil Operator | Sep 2011 |
| 3655 | Proteus Petroleum, Inc. | | Oil & Gas Operator | Nov 1983 |
| 3656 | Proton Energy, L.L.C. | Houston, TX 77002 | Oil & Gas Operator | Jun 2005 |
| 3657 | Proven Fuel Exploration, Inc. | | Oil & Gas Operator | Mar 2022 |
| 3658 | Proven Oil Production | | Oil Operator | Mar 2002 |
| 3659 | Prudential Oil & Gas, Inc. | | Oil & Gas Operator | Jul 1987 |
| 3660 | Prudential Petroleum Co., LTD. | | Oil & Gas Operator | Dec 1990 |
| 3661 | Pruet & Hughes Co. | | Oil & Gas Operator | Jan 1978 |
| 3662 | Pruet Production Co. | Jackson, MS 39201 | Oil & Gas Operator | Aug 2024 |
| 3663 | Pryme Energy, LLC | | Oil & Gas Operator | Feb 2015 |
| 3664 | PSC Industrial Outsourcing, LP | | Oil Operator | Jul 2024 |
| 3665 | Pullco Services LLC | | Oil Operator | Jun 2024 |
| 3666 | Puma, Inc. | | Oil & Gas Operator | Oct 2000 |
| 3667 | Pure Resources, L.P. | Midland, TX 79701 | Oil & Gas Operator | Mar 2006 |
| 3668 | PV Of MS Inc | | Oil & Gas Operator | Jan 2019 |
| 3669 | PXP Gulf Coast Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 3670 | PXP Louisiana L.L.C. | | Oil & Gas Operator | Nov 2010 |
| 3671 | Pyramid Petroleum, Inc. | | Oil & Gas Operator | May 1992 |
| 3672 | Pyramid Petroleum, Inc.-La Div | | Oil Operator | Jun 1997 |
| 3673 | Pyro Energy Corp | Kingwood, TX 77339-2102 | Oil & Gas Operator | Mar 1998 |
| 3674 | Q. F. Sagdahl | | Oil Operator | Feb 2019 |
| 3675 | Qep Energy Company | Midland, TX 79701 | Oil & Gas Operator | Aug 2024 |
| 3676 | Quad L Oil Company | | Oil & Gas Operator | May 2024 |
| 3677 | Quadrant Exploration, Inc. | Marietta, OH 45750 | Oil & Gas Operator | Dec 2000 |
| 3678 | Quality Petroleum Corp. | | Oil & Gas Operator | Apr 1990 |
| 3679 | Quality Petroleum, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jan 2022 |
| 3680 | Quality Production SVC. LLC | | Oil & Gas Operator | Jul 2005 |
| 3681 | Quanah Petroleum, Inc. | | Oil & Gas Operator | Sep 1983 |
| 3682 | Quantum Resources MGMT, LLC | | Oil & Gas Operator | Nov 2014 |
| 3683 | Quarles Drilling Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2008 |
| 3684 | Quasha Oil Co. | | Oil & Gas Operator | Feb 1998 |
| 3685 | Queen Sand Operating Co. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 3686 | Quest Energies | | Oil & Gas Operator | Mar 1997 |
| 3687 | Quest Energies Group,LTD. | Shreveport, LA 71106 | Oil & Gas Operator | Mar 1997 |
| 3688 | Quest Energies, L.L.C. | | Oil & Gas Operator | Jul 2024 |
| 3689 | Quest Exploration L.L.C. | | Oil & Gas Operator | Jul 2014 |
| 3690 | Questar Expl. And Prod. Co. | Salt Lake Cty, UT 84145 | Oil & Gas Operator | Jul 2011 |
| 3691 | Quiet Sun Investments, Inc. | | Oil & Gas Operator | Sep 2012 |
| 3692 | Quinoco Petroleum Inc | | Oil & Gas Operator | Dec 1990 |
| 3693 | Quintana Petroleum Corporation | Denver, CO 80265 | Oil & Gas Operator | Mar 1998 |
| 3694 | Quintana Production Co. | | Oil & Gas Operator | Feb 1987 |
| 3695 | Quintana-H H Cullen-Carl O&G | | Oil & Gas Operator | Jul 1984 |
| 3696 | R & B Oil Company, LLC Of Texas | | Oil & Gas Operator | Jul 2024 |
| 3697 | R & C Petroleum, Inc. | Flint, TX 75762 | Oil & Gas Operator | Nov 2024 |
| 3698 | R & D Holdings, Inc. | | Gas Operator | Feb 1991 |
| 3699 | R & H Oil & Gas, Inc. | | Oil & Gas Operator | Apr 1992 |
| 3700 | R & M Oil Co. | Fredonia, KS 66736 | Oil & Gas Operator | Aug 2002 |