| 701 | Rusk Co. Well Service Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2024 |
| 702 | Rusk County Well Service, Inc | Kilgore, TX 75662 | Gas Operator | May 2024 |
| 703 | Rusk Energy Management, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2008 |
| 704 | Rusk Energy Operating LLC | Houston, TX 77040 | Oil & Gas Operator | Dec 2024 |
| 705 | Rusk Production Inc. | Iowa Park, TX 76367 | Oil & Gas Operator | Dec 2024 |
| 706 | Russell - FT. Trinidad Op., LLC | Tyler, TX 75710 | Oil & Gas Operator | Dec 2024 |
| 707 | Russell Bros. Oil & Gas, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2024 |
| 708 | Russell Brothers Oil & Gas | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2004 |
| 709 | Russell Operating Company, LLC | Big Lake, TX 76932 | Oil Operator | Dec 2024 |
| 710 | Russell, C. M. Oil Company | Lubbock, TX 79423 | Oil & Gas Operator | Jan 2008 |
| 711 | Russell, L. J. Oil Company | Snyder, TX 79549 | Oil & Gas Operator | Dec 2024 |
| 712 | Russell, Phillip | Colorado City, TX 79512 | Oil & Gas Operator | Dec 2024 |
| 713 | Russell, T. Operating Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Aug 2005 |
| 714 | Rust Oil Corp. | Fort Worth, TX 76108 | Oil & Gas Operator | Dec 2024 |
| 715 | Rust Operating Co., Inc. | Fort Worth, TX 76108 | Oil & Gas Operator | Feb 2000 |
| 716 | Ruth Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Feb 2010 |
| 717 | Rutherford Oil Corporation | Houston, TX 77046 | Oil & Gas Operator | Jun 2019 |
| 718 | Rutherford, Michael A. | Dallas, TX 75381 | Oil & Gas Operator | May 2000 |
| 719 | Ruthson Energy, Inc. | Judson, TX 75660 | Oil Operator | Dec 2024 |
| 720 | Rutledge, Kenny | Rising Star, TX 76471 | Oil & Gas Operator | Dec 2024 |
| 721 | Rutledge, Rome | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 1997 |
| 722 | Rutledge-Newsom | Wichita Falls, TX 76309 | Oil Operator | Dec 2024 |
| 723 | Ruwco Oil And Gas Corp. | Austin, TX 78701 | Oil & Gas Operator | Aug 2021 |
| 724 | RVR Operating Co. | Bedford, TX 76021 | Oil & Gas Operator | Jan 2017 |
| 725 | RW Operating Corp. | Midland, TX 79702 | Oil & Gas Operator | Jul 2016 |
| 726 | Rwa Corporation | Houston, TX 77024 | Oil & Gas Operator | Sep 1999 |
| 727 | Rwa, LLC | Boyd, TX 76023 | Oil & Gas Operator | Dec 2024 |
| 728 | RWJ Operating LLC | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |
| 729 | RWS Operating Co. LLC | Kilgore, TX 75663 | Oil Operator | Dec 2024 |
| 730 | Ryan, Joseph G. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 731 | Ryann Operating, LLC | Waller, TX 77484 | Oil & Gas Operator | Dec 2024 |
| 732 | Ryder Scott Management, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2018 |
| 733 | Ryder Scott Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2005 |
| 734 | Ryholland Fielder, Inc | Delray Beach, FL 33446 | Oil & Gas Operator | Dec 2024 |
| 735 | Rystin Oil & Gas | Sugar Land, TX 77487 | Oil & Gas Operator | Dec 2024 |