| 601 | Peba Oil & Gas, Inc. | Nocona, TX 76255 | Oil & Gas Operator | Apr 2024 |
| 602 | Pecos Country Operating Inc. | N Richlnd HLS, TX 76182 | Oil Operator | Apr 2024 |
| 603 | Pecos Valley Management Co. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2008 |
| 604 | Peden, Marshell | Archer City, TX 76351 | Oil & Gas Operator | Apr 2024 |
| 605 | Penntex Resources, L.P. | State College, PA 16803 | Oil & Gas Operator | Mar 2016 |
| 606 | Penny, Ralph E. | White Plains, NY 10601 | Oil & Gas Operator | Jul 2023 |
| 607 | Perkins-Prothro Company | Wichita Falls, TX 76308 | Oil & Gas Operator | May 2002 |
| 608 | Permex Petroleum Corporation | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 609 | Permian Basin Oil Corporation | Odessa, TX 79762 | Oil & Gas Operator | Apr 2024 |
| 610 | Perry Operating Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 611 | Person Oil Co. | Bowie, TX 76230 | Oil & Gas Operator | Sep 2002 |
| 612 | Person, Claude | Bowie, TX 76230 | Oil & Gas Operator | Apr 2007 |
| 613 | Peterson Oil And Gas LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | Apr 2024 |
| 614 | Peterson, Don Company | Loving, TX 76460 | Oil & Gas Operator | Jul 2017 |
| 615 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2024 |
| 616 | Petrobal Omega 1, LLC | Little Elm, TX 75068 | Oil & Gas Operator | Apr 2024 |
| 617 | Petrocoastal, Inc. | Frisco, TX 75036 | Oil & Gas Operator | Apr 2024 |
| 618 | Phillips 66 Company | Bartlesville, OK 74004 | Oil & Gas Operator | Aug 1997 |
| 619 | Phillips, Bob | Weatherford, TX 76086 | Oil & Gas Operator | Nov 2019 |
| 620 | Pine Creek Operating LLC | Colorado SPGS, CO 80903 | Oil & Gas Operator | Jul 2021 |
| 621 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 622 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 623 | Pogo Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jan 2008 |
| 624 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2024 |
| 625 | Pop Operating Company | Denton, TX 76202 | Oil & Gas Operator | Apr 2024 |
| 626 | Poteet Operating Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 1994 |
| 627 | Prairie Petroleum, Inc | Plano, TX 75093 | Oil & Gas Operator | May 1999 |
| 628 | PRC Operating, Inc. | Bowie, TX 76230 | Oil & Gas Operator | Apr 2024 |
| 629 | Precise Development, Inc. | Austin, TX 78709 | Oil & Gas Operator | May 2005 |
| 630 | Prime Operating Company | Houston, TX 77024 | Oil & Gas Operator | Apr 2024 |
| 631 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Dec 2023 |
| 632 | Primrose Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 2007 |
| 633 | Pro Oil & Gas Inc | Frankfort, IL 60423 | Oil & Gas Operator | May 2014 |
| 634 | Proco Operating Co., Inc. | Graford, TX 76449 | Oil & Gas Operator | Apr 2024 |
| 635 | Pruitt Oil & Gas | Decatur, TX 76234 | Oil & Gas Operator | Feb 2018 |
| 636 | Pursley, John | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2024 |
| 637 | Pyramid Energy Inc | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2012 |
| 638 | Quantum Investments | Lubbock, TX 79424 | Oil Operator | Apr 2024 |
| 639 | Quest Petroleum Company | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2024 |
| 640 | Quest Petroleum, Inc. | Abilene, TX 79603 | Oil & Gas Operator | Apr 2024 |
| 641 | Quest-Tex Energy Op II, LLC | Dallas, TX 75225 | Oil & Gas Operator | Apr 2024 |
| 642 | Rainwater, John | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 643 | Ranger Operating Co. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 644 | Ray Herring Estate | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 645 | Ray Herring Operating Co., LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 646 | Raylee Operating Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 647 | Reed, Robert T. | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2024 |
| 648 | Regal Energy Corporation | Rhome, TX 76078 | Oil & Gas Operator | Apr 2024 |
| 649 | Remington Oil | South Bend, TX 76481 | Oil & Gas Operator | Mar 2008 |
| 650 | Renaissance Petroleum Co LLC | Houston, TX 77058 | Oil & Gas Operator | Nov 2011 |
| 651 | Reneau Oil Co. | Shamrock, TX 79079 | Oil & Gas Operator | Apr 2024 |
| 652 | Reo Operating LLC | Austin, TX 78747 | Oil & Gas Operator | Apr 2024 |
| 653 | Republic Energy Inc. | Decatur, TX 76234 | Oil & Gas Operator | Dec 2016 |
| 654 | Revier, J. B. Prod. Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Apr 1996 |
| 655 | Rhodes Disposal, Inc. | Bryson, TX 76427 | Oil Operator | Apr 2024 |
| 656 | Rhyne, J.V. | Cisco, TX 76437 | Oil & Gas Operator | Apr 2024 |
| 657 | Richards, Michael Dewain | Graham, TX 76450 | Oil & Gas Operator | Apr 2011 |
| 658 | Richey Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Apr 2024 |
| 659 | Richey, Ray Management Co., Inc. | Fort Worth, TX 76108 | Oil & Gas Operator | Apr 2024 |
| 660 | Rico Oil Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 661 | Rife Energy Operating, Inc. | Fort Worth, TX 76106 | Oil & Gas Operator | Apr 2024 |
| 662 | Riggs Petroleum Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 663 | Rimfire Resources, LLC | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
| 664 | Rio Grande Drilling Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 1999 |
| 665 | RKW Operating LLC | Weatherford, TX 76085 | Gas Operator | Apr 2024 |
| 666 | RMR Oil Company | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2005 |
| 667 | Roberts & Hammack, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Apr 2024 |
| 668 | Robertson, Gene Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 1998 |
| 669 | Robinson Oil & Gas, Inc. | Chico, TX 76431 | Oil & Gas Operator | Aug 2003 |
| 670 | Robuck Petroleum, LLC | Flower Mound, TX 75028 | Oil & Gas Operator | Apr 2024 |
| 671 | Rock Operating | Abilene, TX 79608 | Oil & Gas Operator | Apr 2024 |
| 672 | Rocking, R, Drilling & Prod Co. | Bowie, TX 76230 | Oil & Gas Operator | Apr 2024 |
| 673 | Rockoil Energy Of Texas, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2024 |
| 674 | Rogers Drilling Co. | Olney, TX 76374 | Oil & Gas Operator | Apr 2024 |
| 675 | Rogers Oilfield Op, Corp. | Granbury, TX 76048 | Oil & Gas Operator | Jul 2019 |
| 676 | Roil Mineral & Land Co. | Dallas, TX 75379 | Oil & Gas Operator | Apr 2024 |
| 677 | Ropar Operating Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2024 |
| 678 | Roseland Oil & Gas Inc | Rockwall, TX 75087 | Oil & Gas Operator | Feb 2003 |
| 679 | Rover Operating Inc | Richardson, TX 75080 | Oil & Gas Operator | Apr 2000 |
| 680 | Royal Oil LTD. Co. | Hobbs, NM 88241 | Oil & Gas Operator | Mar 1996 |
| 681 | Royal Petroleum Corp. | Dallas, TX 75229 | Oil & Gas Operator | Jan 2024 |
| 682 | Rush, Charles Ray | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 683 | Rwa, LLC | Boyd, TX 76023 | Oil & Gas Operator | Apr 2024 |
| 684 | Ryan, Joseph G. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 685 | Ryder Scott Management, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2018 |
| 686 | Ryder Scott Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2005 |
| 687 | S & J Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2015 |
| 688 | S & P Energy | Benbrook, TX 76126 | Oil & Gas Operator | Oct 1994 |
| 689 | S & P Energy, Inc. | Benbrook, TX 76126 | Oil & Gas Operator | Aug 2003 |
| 690 | S&G Oil LLC | Wichita Falls, TX 76309 | Oil & Gas Operator | Apr 2024 |
| 691 | S.B. Street Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 692 | Sabre Oil And Gas Corp. | Houston, TX 77063 | Oil & Gas Operator | Apr 2024 |
| 693 | Sabre Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2024 |
| 694 | Sage Natural Resources LLC | Tulsa, OK 74170 | Oil & Gas Operator | Apr 2024 |
| 695 | Sage Oil And Gas, LLC | Graham, TX 76450 | Gas Operator | Apr 2024 |
| 696 | Salt Of The Earth Energy, LLC | Montgomery, TX 77356 | Oil & Gas Operator | Apr 2024 |
| 697 | Samson Hydrocarbons Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2016 |
| 698 | Samson Lone Star LP | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2007 |
| 699 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2024 |
| 700 | Sanco Operating Company | Bullard, TX 75757 | Oil & Gas Operator | Apr 2024 |