| 9401 | Riverstone Energy Operating, LLC | Houston, TX 77090 | Oil & Gas Operator | Apr 2025 |
| 9402 | Riviera Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2025 |
| 9403 | RJD Management Co., Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Apr 2025 |
| 9404 | RJKB Foster Operating LLC | Cisco, TX 76437 | Oil & Gas Operator | Apr 2025 |
| 9405 | RJM Oil Company, LLC | Irving, TX 75060 | Oil Operator | Apr 2025 |
| 9406 | Rki Energy Resources, LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2021 |
| 9407 | Rki Exploration & Production LLC | Tulsa, OK 74172 | Oil & Gas Operator | Apr 2025 |
| 9408 | RKK Production Company | Mustang, OK 73064 | Oil & Gas Operator | Feb 2025 |
| 9409 | RKW Operating LLC | Weatherford, TX 76085 | Gas Operator | Apr 2025 |
| 9410 | RLB Enterprises, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Feb 1997 |
| 9411 | RLB Investments LLC | Holdenville, OK 74848-9421 | Oil Operator | Jul 2017 |
| 9412 | RLM Energy Company Inc. | Monroe, LA 71201 | Oil & Gas Operator | Mar 2008 |
| 9413 | RLS Oil Company | Tulia, TX 79088 | Oil & Gas Operator | Apr 2025 |
| 9414 | Rlu Oil & Gas, Inc. | Devine, TX 78016 | Oil & Gas Operator | Apr 2025 |
| 9415 | Rlu Operating, LLC | Devine, TX 78016 | Oil & Gas Operator | Apr 2025 |
| 9416 | RMB Operating LLC | Lubbock, TX 79493 | Oil & Gas Operator | Apr 2025 |
| 9417 | RMC Petroleum, Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 1996 |
| 9418 | Rme Austin Chalk Company | Houston, TX 77251 | Oil & Gas Operator | Nov 2002 |
| 9419 | Rme Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Nov 2016 |
| 9420 | Rmor Production | Kilgore, TX 75662 | Oil Operator | Apr 2025 |
| 9421 | RMR Oil Company | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2005 |
| 9422 | RMR Operating, LLC | Plano, TX 75024 | Oil & Gas Operator | Apr 2025 |
| 9423 | RMS Monte Christo, LLC | Snowmass VLG., CO 81615 | Oil & Gas Operator | Mar 2023 |
| 9424 | RMX Oil & Gas, LLC | Zapata, TX 78076 | Oil Operator | Apr 2025 |
| 9425 | RNS Oil Co. | Rio Grande Ci, TX 78582 | Oil Operator | Apr 2025 |
| 9426 | Ro-Jo, Inc. | Highland VLG, TX 75077 | Oil & Gas Operator | Aug 2003 |
| 9427 | Roach, R. Byron Trustee | Judson, TX 75660 | Oil & Gas Operator | Mar 1999 |
| 9428 | Roach, R. Byron, Trustee, LLC | Judson, TX 75660 | Oil & Gas Operator | Mar 2007 |
| 9429 | Road Oil Sales Inc. | Tyler, TX 75711 | Oil Operator | Dec 1984 |
| 9430 | Roanoke Corporation | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 1995 |
| 9431 | Roaring Springs Energy, LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2010 |
| 9432 | Rob-Joe Gas & Oil Co. | Ranger, TX 76470 | Oil & Gas Operator | Apr 2025 |
| 9433 | Robbins Energy, Inc. | Longview, TX 75606 | Oil & Gas Operator | Sep 1994 |
| 9434 | Robbins Petroleum Corp. | Longview, TX 75606 | Oil & Gas Operator | Sep 1994 |
| 9435 | Robbins, L. C. | Seguin, TX 78155 | Oil & Gas Operator | Aug 2003 |
| 9436 | Robby Kohutek, Inc. | Ballinger, TX 76821 | Oil & Gas Operator | Apr 2025 |
| 9437 | Roberson Oil Company | Houston, TX 77046 | Oil & Gas Operator | Feb 2025 |
| 9438 | Roberson, Joe | Vernon, TX 76385 | Oil & Gas Operator | Feb 2015 |
| 9439 | Robert C. Brower, LLC | Southlake, TX 76092 | Oil & Gas Operator | Apr 2025 |
| 9440 | Robert T. Epperson Prod Co, LLC | Tyler, TX 75713 | Gas Operator | Dec 2017 |
| 9441 | Roberts & Hammack, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Apr 2025 |
| 9442 | Roberts & Murphy, Inc. | Shreveport, LA 71137 | Oil & Gas Operator | Apr 2016 |
| 9443 | Roberts & Roberts Enterprise,Inc | Levelland, TX 79336 | Oil & Gas Operator | Jun 1996 |
| 9444 | Robertson Resources, Inc. | Midland, TX 79708 | Oil & Gas Operator | Apr 2025 |
| 9445 | Robertson, French M. Oil Co. | Abilene, TX 79608 | Oil & Gas Operator | Mar 1995 |
| 9446 | Robertson, Gene Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 1998 |
| 9447 | Robertson, T. L. Operating Co. | Cross Plains, TX 76443 | Oil & Gas Operator | May 2004 |
| 9448 | Robertson-Bryce Management, LLC | Tyler, TX 75701 | Oil & Gas Operator | Apr 2025 |
| 9449 | Robin Of Perryton Corporation | Perryton, TX 79070 | Oil & Gas Operator | Apr 2025 |
| 9450 | Robin Of Perryton, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Dec 1995 |
| 9451 | Robin, Jack, Co. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Dec 2017 |
| 9452 | Robinett Resources Inc. | Longview, TX 75601 | Oil & Gas Operator | Dec 1999 |
| 9453 | Robinson Drilling Of Texas | Big Spring, TX 79721 | Oil & Gas Operator | Oct 1996 |
| 9454 | Robinson Oil & Gas, Inc. | Chico, TX 76431 | Oil & Gas Operator | Aug 2003 |
| 9455 | Robinson Oil Co. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 9456 | Robinson Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Aug 2012 |
| 9457 | Robinson, Irvin | Abilene, TX 79608 | Oil & Gas Operator | May 1999 |
| 9458 | Robison, J. H. & Assoc. LTD. | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Apr 1996 |
| 9459 | Robuck Petroleum, LLC | Nacogdoches, TX 75965 | Oil & Gas Operator | Apr 2025 |
| 9460 | Roc Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2013 |
| 9461 | Roc Operating, Inc. | Plano, TX 75093 | Oil & Gas Operator | Oct 2008 |
| 9462 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 9463 | Roca Production, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2025 |
| 9464 | Roca Resource Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 9465 | Rocanville Corporation | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 9466 | Rocc Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Apr 2024 |
| 9467 | Rocc Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Apr 2025 |
| 9468 | Rocinante | Houston, TX 77058 | Oil Operator | Apr 2025 |
| 9469 | Rock Bottom Oil, GP, L.L.C. | Nacogdoches, TX 75963 | Oil & Gas Operator | Apr 2025 |
| 9470 | Rock Creek Oil Co. | Iowa Park, TX 76367 | Oil Operator | Mar 2008 |
| 9471 | Rock Creek Oil, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Nov 2019 |
| 9472 | Rock Energy Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Apr 2025 |
| 9473 | Rock Fish Operating LLC | McKinney, TX 75070 | Oil & Gas Operator | Apr 2025 |
| 9474 | Rock Hill Operating | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2025 |
| 9475 | Rock Operating | Abilene, TX 79608 | Oil & Gas Operator | Apr 2025 |
| 9476 | Rock Petroleum, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2024 |
| 9477 | Rock Resources, Inc. | Corpus Chrsti, TX 78414 | Oil & Gas Operator | Apr 2025 |
| 9478 | Rock Solid Operating, LLC | Southlake, TX 76092 | Oil Operator | Sep 2021 |
| 9479 | Rock Well Petroleum (U.S.), Inc. | Canada, 00100 | Oil & Gas Operator | Sep 2014 |
| 9480 | Rockbridge Oil & Gas | Houston, TX 77027 | Oil & Gas Operator | Mar 1990 |
| 9481 | Rockbridge Oil And Gas, Inc. | Houston, TX 77227 | Oil & Gas Operator | Nov 1997 |
| 9482 | Rockbridge Petroleum LLC | Houston, TX 77057 | Oil & Gas Operator | Dec 2009 |
| 9483 | Rockcliff Energy Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 9484 | Rockdale Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Dec 2020 |
| 9485 | Rockdale Resources Corporation | Houston, TX 77024 | Oil Operator | Jul 2016 |
| 9486 | Rockefeller Hughes (USA) LLC | Houston, TX 77027 | Oil & Gas Operator | Jul 2015 |
| 9487 | Rocker A Operating Company | Post, TX 79356 | Oil & Gas Operator | Aug 2022 |
| 9488 | Rocker B Production, L.L.C. | Graham, TX 76450 | Gas Operator | Apr 2025 |
| 9489 | Rockford Energy Partners II, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2007 |
| 9490 | Rockford Energy Partners III,LLC | Tulsa, OK 74103 | Oil & Gas Operator | Sep 2012 |
| 9491 | Rockford Panhandle, LLC | Tulsa, OK 74105 | Oil & Gas Operator | Sep 2008 |
| 9492 | Rockin C Production, L.L.C. | Nocona, TX 76255 | Oil Operator | Apr 2025 |
| 9493 | Rockin' D, LLC | Big Spring, TX 79720 | Oil & Gas Operator | Mar 2024 |
| 9494 | Rocking Lazy Little B Ranch Oil | Cedar Creek, TX 78612 | Oil Operator | Apr 2011 |
| 9495 | Rocking R Investments, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Apr 2025 |
| 9496 | Rocking, R, Drilling & Prod Co. | Bowie, TX 76230 | Oil & Gas Operator | Apr 2025 |
| 9497 | Rockland Oil Company | Addison, TX 75001 | Oil & Gas Operator | Jan 2025 |
| 9498 | Rockoil Energy Of Texas, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2025 |
| 9499 | Rockport Energy Solutions LLC | Austin, TX 78730 | Oil & Gas Operator | Apr 2025 |
| 9500 | Rockport Georgetown Holdings,LP | Bellaire, TX 77401 | Oil & Gas Operator | Nov 2007 |