| 9501 | Richey Properties, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Feb 2026 |
| 9502 | Richey, Ray Management Co., Inc. | Fort Worth, TX 76108 | Oil & Gas Operator | Feb 2026 |
| 9503 | Richland Energy, Inc. | Irving, TX 75063 | Oil & Gas Operator | Feb 2026 |
| 9504 | Richland Resources Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Feb 2026 |
| 9505 | Richman Petroleum Corp. | Grapevine, TX 76051 | Oil & Gas Operator | Jul 2006 |
| 9506 | Richmond Drilling Company | Midland, TX 79705 | Oil & Gas Operator | Apr 2017 |
| 9507 | Richmond Operating Company | Midland, TX 79707 | Oil & Gas Operator | Feb 2007 |
| 9508 | Richmond Petroleum Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Aug 2003 |
| 9509 | Richter Operating Company | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2007 |
| 9510 | Rickaway Energy, Corp. | Pleasanton, TX 78064 | Oil & Gas Operator | Feb 2026 |
| 9511 | Ricks Expl Acquisition Corp | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2004 |
| 9512 | Ricks Expl Acquisition LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2013 |
| 9513 | Ricks Exploration, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2008 |
| 9514 | Rico Oil Company | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 9515 | Ricochet Energy, Inc. | San Antonio, TX 78258 | Oil & Gas Operator | Feb 2026 |
| 9516 | Ricon Petroleum Company | Shamrock, TX 79079 | Oil & Gas Operator | Mar 2008 |
| 9517 | Riddle Engineering Corp. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jul 2011 |
| 9518 | Ridge Oil Company | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 9519 | Ridge Petroleum Inc. | Tyler, TX 75701 | Oil & Gas Operator | Feb 2026 |
| 9520 | Ridgeline Energy Inc. | Miami, FL 33130 | Oil & Gas Operator | Feb 2026 |
| 9521 | Ridgeline Resources, LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 9522 | Ridgeway Exco, Inc. | San Antonio, TX 78279 | Oil & Gas Operator | Mar 1996 |
| 9523 | Ridglea Energy I, LLC | Spring, TX 77379 | Oil & Gas Operator | Feb 2026 |
| 9524 | Ridley Oil Corporation | Tyler, TX 75702 | Oil & Gas Operator | Nov 1996 |
| 9525 | Rife Energy Operating, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Feb 2026 |
| 9526 | Rife Oil Properties Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 2026 |
| 9527 | Rife Operating, LTD. | Fort Worth, TX 76107 | Oil & Gas Operator | Oct 2005 |
| 9528 | Rife, M. O., Jr. | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 1998 |
| 9529 | Rig Petroleum, LLC | Spearman, TX 79081 | Oil & Gas Operator | Feb 2026 |
| 9530 | Rig Runner Express Inc Of Texas | Kilgore, TX 75663 | Oil & Gas Operator | May 2014 |
| 9531 | Rig Runner Express, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Mar 2008 |
| 9532 | Rigged Up, LLC | Graham, TX 76450 | Oil Operator | Feb 2026 |
| 9533 | Riggins Energy Inc. | Vernon, TX 76385 | Oil & Gas Operator | Jul 2004 |
| 9534 | Riggs Petroleum Company | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 9535 | Riggs, Don R. | San Antonio, TX 78270 | Oil & Gas Operator | Aug 2003 |
| 9536 | Riley Exploration Opg Co, LLC | La Grange, TX 78945 | Oil & Gas Operator | Feb 2026 |
| 9537 | Riley Exploration, LLC | Blanchard, OK 73010 | Oil & Gas Operator | Feb 2026 |
| 9538 | Riley Permian Operating Co, LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Feb 2026 |
| 9539 | Riley Production | Throckmorton, TX 76483 | Oil & Gas Operator | Feb 2026 |
| 9540 | Riley Production, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2012 |
| 9541 | Rim Operating, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Feb 2026 |
| 9542 | Rimfire Resources, LLC | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 9543 | Rimrock Energy, LLC | Fort Worth, TX 76147 | Oil & Gas Operator | Oct 2012 |
| 9544 | Rimrock Gas Company | Weatherford, OK 73096 | Oil & Gas Operator | May 2008 |
| 9545 | Rimrock Production Inc. | Giddings, TX 78942 | Oil & Gas Operator | Feb 2026 |
| 9546 | Rin-Tex Oil Co. | Snyder, TX 79549 | Oil & Gas Operator | Feb 2026 |
| 9547 | Rincon Petroleum Corporation | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Feb 2026 |
| 9548 | Rincon Production Co., Inc. | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Apr 1997 |
| 9549 | Ring Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 9550 | Ringo Rig LLC | Coleman, TX 76834 | Oil & Gas Operator | Feb 2026 |
| 9551 | Rio Blanco Energy, Inc. | Littleton, CO 80121 | Oil & Gas Operator | Oct 2002 |
| 9552 | Rio Bravo Expl. & Prod. Co. | Houston, TX 77055 | Oil & Gas Operator | Apr 2020 |
| 9553 | Rio Bravo Oil Company | The Woodlands, TX 77381 | Oil & Gas Operator | Feb 2002 |
| 9554 | Rio Bravo Production, LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 9555 | Rio Bravo Royalty Co. | Bandera, TX 78003 | Oil & Gas Operator | Aug 2003 |
| 9556 | Rio Energy | Houston, TX 77067 | Oil Operator | Feb 2026 |
| 9557 | Rio Exploration Company | San Antonio, TX 78209 | Gas Operator | Dec 2005 |
| 9558 | Rio Grand Exploration, LLC | San Antonio, TX 78216 | Oil & Gas Operator | Feb 2026 |
| 9559 | Rio Grande Drilling Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 1999 |
| 9560 | Rio Grande E&P II, LLC | Houston, TX 77092 | Gas Operator | Feb 2026 |
| 9561 | Rio Grande Energy | Laredo, TX 78041 | Oil & Gas Operator | May 2004 |
| 9562 | Rio Interstate Oil, Inc. | Oklahoma City, OK 73189 | Oil & Gas Operator | Sep 1994 |
| 9563 | Rio O & P LLC | Pasadena, TX 77504 | Oil Operator | Feb 2026 |
| 9564 | Rio Oil And Gas (Permian) II,LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Nov 2024 |
| 9565 | Rio Petroleum, Inc. | Amarillo, TX 79102 | Oil & Gas Operator | Feb 2026 |
| 9566 | Rio Rocky Enterprises, Inc. | Eldorado, TX 76936 | Oil & Gas Operator | Feb 2026 |
| 9567 | Rio-Tex, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2026 |
| 9568 | Rippy Branch Oil Co. | Grandfalls, TX 79742 | Oil & Gas Operator | Apr 2022 |
| 9569 | Rippy Oil Company | Tyler, TX 75702 | Oil & Gas Operator | Feb 2026 |
| 9570 | Riptide Energy LLC | Austin, TX 78701 | Oil & Gas Operator | Feb 2026 |
| 9571 | Risco La Sara Operations, LLC | Houston, TX 77056 | Oil & Gas Operator | Aug 2014 |
| 9572 | Rise Oil & Gas, Inc. | Austin, TX 78755 | Oil & Gas Operator | Feb 2026 |
| 9573 | Rise Petroleum Investments LLC | Tomball, TX 77377 | Oil & Gas Operator | Feb 2026 |
| 9574 | Riseden Services, Inc. | Houston, TX 77256 | Oil & Gas Operator | Sep 1997 |
| 9575 | Rising Star Energy PTR, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Jun 2025 |
| 9576 | Rising Star Energy, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Aug 2006 |
| 9577 | Rising Star Petroleum, L.L.C. | Dallas, TX 75219 | Oil & Gas Operator | Apr 2010 |
| 9578 | Rister Oil&Gas International LLC | Eastland, TX 76448 | Oil & Gas Operator | Feb 2026 |
| 9579 | Rister, Dewey | Avoca, TX 79503 | Oil & Gas Operator | Feb 2026 |
| 9580 | Ritchie, H. G. Jr. | Taft, TX 78390 | Oil & Gas Operator | Feb 2026 |
| 9581 | Rittenhouse Oil & Gas Co. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 9582 | Ritter Properties, LTD. | Fredericksbrg, TX 78624 | Oil & Gas Operator | Feb 2026 |
| 9583 | Ritter, Laber & Associates, Inc. | Williston, ND 58802 | Oil & Gas Operator | Aug 2025 |
| 9584 | River City Resources, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Nov 1997 |
| 9585 | Rivercity Operating, Inc. | Austin, TX 78766 | Oil & Gas Operator | Feb 2026 |
| 9586 | Riverine, L.C. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2021 |
| 9587 | Rivershore Operating LLC | Dallas, TX 75206 | Oil & Gas Operator | Feb 2026 |
| 9588 | Riverstone Energy Operating, LLC | Houston, TX 77090 | Oil & Gas Operator | Feb 2026 |
| 9589 | Riviera Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 9590 | RJD Management Co., Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Feb 2026 |
| 9591 | RJKB Foster Operating LLC | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 9592 | RJM Oil Company, LLC | Irving, TX 75060 | Oil Operator | Feb 2026 |
| 9593 | Rki Energy Resources, LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2021 |
| 9594 | Rki Exploration & Production LLC | Tulsa, OK 74172 | Oil & Gas Operator | Feb 2026 |
| 9595 | RKK Production Company | Mustang, OK 73064 | Oil & Gas Operator | Dec 2025 |
| 9596 | RKL Oil, Inc. | Dallas, TX 75379 | Oil & Gas Operator | Apr 1997 |
| 9597 | RKW Operating LLC | Weatherford, TX 76085 | Gas Operator | Feb 2026 |
| 9598 | RLB Enterprises, Inc. | Strawn, TX 76475 | Oil & Gas Operator | Feb 1997 |
| 9599 | RLB Investments LLC | Holdenville, OK 74848-9421 | Oil Operator | Jul 2017 |
| 9600 | RLM Energy Company Inc. | Monroe, LA 71201 | Oil & Gas Operator | Mar 2008 |