| 1 | R & M Oil, LLC | Loco Hills, NM 882550011 | Oil & Gas Operator | May 2025 |
| 2 | R C Bennett Co | Midland, TX 79702 | Oil & Gas Operator | Jan 2019 |
| 3 | R S E Partners-I LP | Oklahoma City, OK 731025261 | Oil & Gas Operator | Feb 2000 |
| 4 | Ralph E Williamson | San Antonio, TX 78239 | Oil & Gas Operator | Dec 2013 |
| 5 | Range Operating New Mexico Inc | Tulsa, OK 74135 | Oil & Gas Operator | Mar 2004 |
| 6 | Range Operating New Mexico LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2013 |
| 7 | Ranger 40 Petroleum, LLC | Fairfield, CT 06824 | Oil & Gas Operator | Oct 2025 |
| 8 | Raptor Resources, Inc. | Austin, TX 78701 | Oil & Gas Operator | Oct 2025 |
| 9 | Ray Westall | Loco Hills, NM 88255 | Oil & Gas Operator | Sep 2012 |
| 10 | Ray Westall Operating, Inc. | Loco Hills, NM 88255 | Oil & Gas Operator | Jul 2025 |
| 11 | Raybaw Operating, LLC | Dallas, TX 75204 | Oil & Gas Operator | Aug 2025 |
| 12 | Read & Stevens, Inc. | Denver, CO 80202 | Oil & Gas Operator | Jul 2023 |
| 13 | Ready Oil & Gas | Artesia, NM 882110381 | Oil & Gas Operator | Dec 2007 |
| 14 | Redstone Oil & Gas Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2020 |
| 15 | Redwood Operating LLC | Artesia, NM 88210 | Oil & Gas Operator | Dec 2023 |
| 16 | Reef Exploration, L.P. | Richardson, TX 75080 | Oil & Gas Operator | Oct 2025 |
| 17 | Reeves County Systems, Inc. | Odessa, TX 79760 | Oil & Gas Operator | Aug 2019 |
| 18 | Regeneration Energy, Corporation | Artesia, NM 88210 | Oil & Gas Operator | Mar 2023 |
| 19 | Reliance Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 20 | Remnant Oil Operating, LLC | Midland, TX 79704 | Oil & Gas Operator | Jul 2024 |
| 21 | Remuda Operating Company | Midland, TX 79711 | Oil & Gas Operator | Oct 2025 |
| 22 | Resaca Operating Company | Houston, TX 77010 | Oil & Gas Operator | Sep 2013 |
| 23 | Resource Rock Services, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2018 |
| 24 | Rex Energy Operating Corp. | State College, PA 16801 | Oil & Gas Operator | Jun 2012 |
| 25 | Rhombus Operating Co., LTD | Littleton, CO 80160 | Oil & Gas Operator | Jun 2025 |
| 26 | Rhonda Operating Company | Midland, TX 79710 | Oil & Gas Operator | Aug 2017 |
| 27 | Ridge Runner Resources Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Oct 2020 |
| 28 | Riley Permian Operating Co, LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Oct 2025 |
| 29 | Rme Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Nov 2016 |
| 30 | Robert H Forrest Jr Oil LLC | Carlsbad, NM 88220 | Oil & Gas Operator | Jun 2025 |
| 31 | Robert N Enfield | Santa Fe, NM 87501 | Oil & Gas Operator | Nov 1997 |
| 32 | Robertson Resources, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Oct 2025 |
| 33 | Robinson Oil Inc | Eunice, NM 88231 | Oil & Gas Operator | Jun 2015 |
| 34 | Roca Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 35 | Roca Production, Inc. | Fort Worth, TX 76107 | Oil & Gas Operator | Oct 2025 |
| 36 | Rockcliff Operating New Mexico LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2018 |
| 37 | Rodney B Webb Dba Webb Oil Co | Artesia, NM 88210 | Oil & Gas Operator | Jun 2005 |
| 38 | Rojo Grande LLC | Artesia, NM 882110248 | Oil Operator | Apr 2008 |
| 39 | Ronadero Company Inc | Roswell, NM BAD ADDR | Oil & Gas Operator | Dec 1996 |
| 40 | Roswell Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Oct 2019 |
| 41 | Roughhouse Operating, LLC | Addison, TX 75001 | Oil & Gas Operator | Jul 2025 |
| 42 | Rover Operating, LLC | Chicago, IL 60606 | Oil & Gas Operator | Jun 2025 |
| 43 | Roy E Kimsey Jr | Midland, TX 79701 | Oil & Gas Operator | Jul 2018 |
| 44 | Royal Oil LTD. Co. | Hobbs, NM 88241 | Oil & Gas Operator | Mar 1996 |
| 45 | Royalty Resources, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 46 | RSC Resources Limited Partnership | Midland, TX 79707 | Oil & Gas Operator | Apr 2013 |
| 47 | Rubicon Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 48 | Rust Oil Corp. | Fort Worth, TX 76108 | Oil & Gas Operator | Oct 2025 |
| 49 | Ruth Oil Co, LLC | Eunice, NM 88231 | Oil Operator | Mar 2015 |