| 25601 | RP Operating, L.L.C. | Houston, TX 77002 | Oil & Gas Operator | May 2025 |
| 25602 | Rpa Energy LLC | Ada, OK 74820 | Oil Operator | Feb 2025 |
| 25603 | RPG Operating LLC | MC Queeney, TX 78123 | Oil Operator | May 2025 |
| 25604 | RPJ Fund Management Inc | St. Paul, MN 55101 | Oil & Gas Operator | Dec 1991 |
| 25605 | RPM Oilfield Services LLC | Lindsay, OK 73052-8005 | Oil & Gas Operator | Feb 2025 |
| 25606 | RPM Operating Company | New Braunfels, TX 78131 | Oil & Gas Operator | Mar 2008 |
| 25607 | RPM Petroleum, LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2013 |
| 25608 | RPS Energy, Inc. | | Oil & Gas Operator | Jul 2020 |
| 25609 | RR Oil Well Operations LLC | Ringwood, OK 73768 | Oil & Gas Operator | Mar 2025 |
| 25610 | RR Ventures Limited Partnership | San Antonio, TX 78239 | Oil & Gas Operator | May 2025 |
| 25611 | RRCH Corp. | Longview, TX 75606 | Oil & Gas Operator | Dec 2013 |
| 25612 | RRG Operating, LLC | Odessa, TX 79760 | Oil & Gas Operator | May 2025 |
| 25613 | Rrig Exploration, LLC | Fort Worth, TX 76147 | Oil & Gas Operator | May 2025 |
| 25614 | RRKK LLC | Columbus, OH 43214-3072 | Oil Operator | Dec 2024 |
| 25615 | RRP Operating LLC | Houston, TX 77046 | Oil & Gas Operator | May 2025 |
| 25616 | RRR Exploration, Inc. | Dallas, TX 75247 | Oil & Gas Operator | May 1994 |
| 25617 | RS Gas Co Inc | Sprankle Mills, PA 15776-8312 | Gas Operator | Dec 2024 |
| 25618 | RSC Energy Corp | Brooklyn HTS, OH 44109 | Oil & Gas Operator | Dec 1984 |
| 25619 | RSC Resources Limited Partnership | Midland, TX 79707 | Oil & Gas Operator | Apr 2013 |
| 25620 | RSD Minerals LLC | Wichita, KS 67206 | Oil Operator | Oct 2024 |
| 25621 | Rse, Inc. | Houston, TX 77077 | Oil & Gas Operator | Sep 2000 |
| 25622 | RSP Permian, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2018 |
| 25623 | Rta Petroleum, LLC | | Oil Operator | Dec 2024 |
| 25624 | RTB Oil Inc | Crescent, OK 73028-0686 | Oil Operator | May 2016 |
| 25625 | RTC Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 25626 | RTC Resources, LLP | Weatherford, OK 73096 | Oil & Gas Operator | May 2025 |
| 25627 | RTD Inc | Bartlesville, OK 74006 | Oil Operator | Jan 1995 |
| 25628 | RTD Resources, LLC | Kilgore, TX 75663 | Oil & Gas Operator | May 2025 |
| 25629 | Rto Operating, LLC | San Antonio, TX 78212 | Oil Operator | Feb 2016 |
| 25630 | RTZ Energy, LLC | Kilgore, TX 75663 | Gas Operator | Apr 2006 |
| 25631 | Rubber City Oil & Gas LLC | Louisville, OH 44641 | Oil & Gas Operator | Dec 2024 |
| 25632 | Rubicon Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 25633 | Rubis Oil, Inc. | Dallas, TX 75206 | Oil & Gas Operator | May 2025 |
| 25634 | Ruby Breaux Gotreaux | | Oil Operator | Mar 1981 |
| 25635 | Ruby Drilling Company Inc | Gillette, WY 82718 | Oil Operator | Oct 2007 |
| 25636 | Ruby Operating Company, Inc | Clyde, TX 79510 | Oil & Gas Operator | May 2025 |
| 25637 | Ruby, Glen Et Al | | Oil & Gas Operator | Dec 1981 |
| 25638 | Rucker, Gary | Archer City, TX 76351 | Oil & Gas Operator | Dec 2003 |
| 25639 | Ruckus Energy Operating, LLC | San Antonio, TX 78257 | Oil & Gas Operator | May 2025 |
| 25640 | Ruda Exploration Inc | Atwood, KS 67730 | Oil Operator | Jan 2025 |
| 25641 | Rude Crude | | Oil Operator | Jan 2025 |
| 25642 | Rudman Partnership, The | Dallas, TX 75201 | Oil & Gas Operator | Dec 2014 |
| 25643 | Rudman Resources, Inc. | | Oil Operator | Jul 1981 |
| 25644 | Rue Johnny B | Duncan, OK 73533-2019 | Oil & Gas Operator | Jan 2025 |
| 25645 | Ruff | Albany, TX 76430 | Oil & Gas Operator | Aug 2017 |
| 25646 | Ruff Drilling Company | Albany, TX 76430 | Oil & Gas Operator | Dec 2019 |
| 25647 | Ruff Oil Co. | Albany, TX 76430 | Oil Operator | May 2025 |
| 25648 | Ruffner Clair L III | Marion Center, PA 15759-7818 | Gas Operator | Dec 2024 |
| 25649 | Ruffner Petroleum Corp | Akron, OH 44308 | Oil & Gas Operator | Dec 2000 |
| 25650 | Ruh Oil Company | Collinsville, OK 74021 | Oil & Gas Operator | Dec 2024 |
| 25651 | Rumley Robert A & Associates | Tulsa, OK 74135-1907 | Oil Operator | Feb 2025 |
| 25652 | Rumsey, Travis J. | Van Etten, NY 14889 | Gas Operator | Dec 2023 |
| 25653 | Runion Oil, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Aug 2003 |
| 25654 | Running Foxes Petroleum Inc. | Centennial, CO 80112 | Oil & Gas Operator | Jan 2025 |
| 25655 | Running Horse Production Co. | Ignacio, CO 81137 | Gas Operator | Jun 2016 |
| 25656 | Running WP Oil, LLC | Loving, TX 76460 | Oil Operator | May 2025 |
| 25657 | Rupe Oil Company, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Jan 2025 |
| 25658 | Rush Creek Operating LLC | McKinney, TX 75070 | Oil & Gas Operator | May 2025 |
| 25659 | Rush Oil & Gas C | | Oil Operator | Dec 1995 |
| 25660 | Rush, Charles Ray | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 25661 | Rush, Terry L. | Wakeeney, KS 67672 | Oil Operator | Jan 2025 |
| 25662 | Rush-Andrus Engineering | Royse City, TX 75189-1210 | Oil & Gas Operator | Feb 2022 |
| 25663 | Rushing Oil Co. | San Antonio, TX 78213 | Oil & Gas Operator | May 2025 |
| 25664 | Rushmore & Tresn | | Oil Operator | Jan 1995 |
| 25665 | Rusk Co. Well Service Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | May 2025 |
| 25666 | Rusk Energy Management, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2008 |
| 25667 | Rusk Energy Operating LLC | Houston, TX 77040 | Oil & Gas Operator | May 2025 |
| 25668 | Rusk Production Inc. | Iowa Park, TX 76367 | Oil & Gas Operator | May 2025 |
| 25669 | Ruskin H Meyer Et Al | | Oil Operator | Sep 1987 |
| 25670 | Russ Holden Well SVC | Sheffield, PA 16347-2904 | Oil & Gas Operator | Dec 2024 |
| 25671 | Russco Energy In | | Oil Operator | Jun 1994 |
| 25672 | Russco Energy, Inc. | Gladstone, MO 64118 | Oil Operator | Apr 2002 |
| 25673 | Russell - FT. Trinidad Op., LLC | Tyler, TX 75710 | Oil & Gas Operator | May 2025 |
| 25674 | Russell A. Flowers | | Oil Operator | May 1995 |
| 25675 | Russell Bros. Oil & Gas, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | May 2025 |
| 25676 | Russell Brothers Oil & Gas | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2004 |
| 25677 | Russell Carl G | Coweta, OK 74429 | Oil & Gas Operator | Mar 2015 |
| 25678 | Russell D Meloy Oil & Gas Co | Enid, OK 73703-1623 | Oil & Gas Operator | Jan 2025 |
| 25679 | Russell E Snider LLC | Newark, OH 43055 | Oil Operator | Dec 2024 |
| 25680 | Russell Gas Co., LLC | Hugoton, KS 67451 | Gas Operator | Jan 2025 |
| 25681 | Russell James E | | Oil Operator | Apr 1994 |
| 25682 | Russell Oil And Gas Company | Weston, WV 26452-0000 | Gas Operator | Dec 2021 |
| 25683 | Russell Oil Company | Haskell, OK 74436 | Oil & Gas Operator | Apr 2014 |
| 25684 | Russell Oil, Inc. | Edmond, OK 73083 | Oil Operator | Jan 2025 |
| 25685 | Russell Operating Company, LLC | Big Lake, TX 76932 | Oil Operator | May 2025 |
| 25686 | Russell Resources, Inc. | | Oil & Gas Operator | Dec 1998 |
| 25687 | Russell, C. M. Oil Company | Lubbock, TX 79423 | Oil & Gas Operator | Jan 2008 |
| 25688 | Russell, Gerald W. | Tulsa, OK 74103 | Oil Operator | Feb 1986 |
| 25689 | Russell, John R | | Oil Operator | Mar 2025 |
| 25690 | Russell, L. J. Oil Company | Snyder, TX 79549 | Oil & Gas Operator | May 2025 |
| 25691 | Russell, Phillip | Colorado City, TX 79512 | Oil & Gas Operator | May 2025 |
| 25692 | Russell, T. Operating Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2005 |
| 25693 | Rust Oil Corp. | Fort Worth, TX 76108 | Oil & Gas Operator | May 2025 |
| 25694 | Rust Operating Co., Inc. | Fort Worth, TX 76108 | Oil & Gas Operator | Feb 2000 |
| 25695 | Rustler Energy LLC | Lindsay, OK 73052 | Oil & Gas Operator | Feb 2025 |
| 25696 | Ruth Oil Co, LLC | Eunice, NM 88231 | Oil Operator | Mar 2015 |
| 25697 | Ruth Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Feb 2010 |
| 25698 | Ruthco Oil, LLC | Eunice, NM 88231 | Oil Operator | May 2008 |
| 25699 | Rutherford Oil Corporation | Houston, TX 77046 | Oil & Gas Operator | Jun 2019 |
| 25700 | Rutherford, Michael A. | Dallas, TX 75381 | Oil & Gas Operator | May 2000 |