| 9001 | Rayalto Oil & Gas, Inc. | MC Queeney, TX 78123 | Oil & Gas Operator | Mar 2004 |
| 9002 | Rayco Operating, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jul 2025 |
| 9003 | Rayden | Midland, TX 79711 | Oil & Gas Operator | Jul 2025 |
| 9004 | Raydon Exploration, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Jul 2025 |
| 9005 | Raydon Production Company | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 1992 |
| 9006 | Raylee Operating Company | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 9007 | Raymond Oil Co., Inc. | Wichita, KS 67201 | Oil & Gas Operator | Mar 2025 |
| 9008 | Raymond'S Operating, Inc. | Kamay, TX 76369 | Oil & Gas Operator | Jul 2025 |
| 9009 | Raymond, WM. C. | Rockdale, TX 76567 | Oil & Gas Operator | Jul 2025 |
| 9010 | RBC Exploration Company | Tulsa, OK 74114 | Oil & Gas Operator | May 2013 |
| 9011 | RBD-Shelby Agency | Dallas, TX 75283 | Oil & Gas Operator | Dec 1993 |
| 9012 | RBJ & Associates, LP | Midland, TX 79707 | Oil Operator | Jan 2020 |
| 9013 | RBR Oil And Gas Company | Pampa, TX 79066 | Oil & Gas Operator | Dec 2001 |
| 9014 | RBR Operating, Inc. | Luling, TX 78648 | Oil & Gas Operator | Jul 2025 |
| 9015 | Rci, L.L.C. | Abilene, TX 79606 | Oil & Gas Operator | Jul 2025 |
| 9016 | RCM Engineering, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Sep 2003 |
| 9017 | RCS Drilling Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 1994 |
| 9018 | RCW Oil Company | Forsan, TX 79733 | Oil & Gas Operator | Mar 2019 |
| 9019 | RCW Oil, LLC | Forsan, TX 79733 | Oil & Gas Operator | Jul 2025 |
| 9020 | Rcy Mineral Group, Inc. | El Campo, TX 77437 | Oil Operator | Jul 2010 |
| 9021 | RDT Properties, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Oct 2012 |
| 9022 | Re-Op Corp. | Houston, TX 77274 | Oil & Gas Operator | Jul 2025 |
| 9023 | Reach Oil | Brownwood, TX 76801 | Oil & Gas Operator | Jul 2025 |
| 9024 | Reach Oil And Gas Company Inc | Oklahoma City, OK 73118-1100 | Oil & Gas Operator | Apr 2025 |
| 9025 | Read & Stevens, Inc. | Denver, CO 80202 | Oil & Gas Operator | Jul 2023 |
| 9026 | Reagle Production Co. | Snyder, TX 79549 | Oil & Gas Operator | Apr 2004 |
| 9027 | Reata Resources | Kermit, TX 79745 | Oil & Gas Operator | Sep 2007 |
| 9028 | Reatta Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 9029 | Reavis, Tommy | San Antonio, TX 78227 | Gas Operator | Jul 2025 |
| 9030 | Reb Petroleum Company | Sugar Land, TX 77478 | Oil & Gas Operator | Jul 2025 |
| 9031 | Rebco Oil, Inc. | Desdemona, TX 76445 | Oil Operator | Jul 2025 |
| 9032 | Rebel Energy, LTD. | Weatherford, TX 76087 | Gas Operator | Nov 2018 |
| 9033 | Rebel Production Company | Kilgore, TX 75663 | Oil Operator | Jul 2025 |
| 9034 | Rebel Resources LBC LLC | Sunray, TX 79086 | Gas Operator | Jul 2025 |
| 9035 | Rec Well Service, Inc. | Pleasanton, TX 78064 | Oil & Gas Operator | Jul 2008 |
| 9036 | Rec, LLC | Pleasanton, TX 78064 | Oil & Gas Operator | Jul 2025 |
| 9037 | Recoil Resources Operating, Inc. | Houston, TX 77046 | Oil & Gas Operator | Mar 2024 |
| 9038 | Recon Oil Co. | Emory, TX 75440 | Oil & Gas Operator | Jul 2025 |
| 9039 | Recovery Operating LP | San Angelo, TX 76904 | Oil & Gas Operator | Jul 2025 |
| 9040 | Red Arrow Energy, LLC | Houston, TX 77027 | Oil & Gas Operator | Jul 2016 |
| 9041 | Red Byrd Oil, LLC | Crystal City, TX 78839 | Oil Operator | Jul 2025 |
| 9042 | Red Chalk Resources LLC | Houston, TX 77218 | Oil Operator | Jul 2025 |
| 9043 | Red Dove Oil & Gas, LLC | Mineral Wells, TX 76067 | Gas Operator | Jul 2025 |
| 9044 | Red Earth Oil & Gas, Inc. | Oklahoma City, OK 73159 | Oil & Gas Operator | Oct 2021 |
| 9045 | Red Fork Production, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Apr 2025 |
| 9046 | Red Gap Oil & Gas LLC | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 9047 | Red Hills Energy, LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Mar 2025 |
| 9048 | Red Horse Petroleum | Dallas, TX 75240 | Oil & Gas Operator | Jul 2025 |
| 9049 | Red Line Company, LTD. | Pampa, TX 79066 | Oil & Gas Operator | Jul 2025 |
| 9050 | Red Man Oil, Co. | Albany, TX 76430 | Oil & Gas Operator | Jul 2025 |
| 9051 | Red Oak Energy Co | San Angelo, TX 76906 | Oil & Gas Operator | Jul 2025 |
| 9052 | Red Oak Gas Operating Company LP | Houston, TX 77056 | Oil & Gas Operator | Dec 2017 |
| 9053 | Red Oak Oil Company, LLC | Spring, TX 77379 | Oil Operator | Jul 2025 |
| 9054 | Red River Oil & Gas LLC | Cherry Hills, CO 80110 | Oil & Gas Operator | Feb 2025 |
| 9055 | Red River Operating & DRLG. Co. | Electra, TX 76360 | Oil & Gas Operator | Jul 2025 |
| 9056 | Red River Petroleum Inc | Tipton, OK 73570-0351 | Oil Operator | May 2025 |
| 9057 | Red Rock Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2015 |
| 9058 | Red Rock Resources, L.L.C. | Wichita Falls, TX 76310 | Oil & Gas Operator | Apr 2025 |
| 9059 | Red Sand Resources LLC | Ada, OK 74821 | Oil Operator | Apr 2025 |
| 9060 | Red Shell Inc | Dale, TX 78616 | Oil & Gas Operator | Jul 2025 |
| 9061 | Red Stag Energy, LLC | Ozona, TX 76943 | Oil & Gas Operator | Jan 2022 |
| 9062 | Red Stag Operating, LLC | Ozona, TX 76943 | Oil & Gas Operator | Jul 2025 |
| 9063 | Red Tail Exploration, LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 9064 | Red Tank Resources, LLC | Dallas, TX 75379 | Oil & Gas Operator | Jul 2025 |
| 9065 | Red Water Resources, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Jul 2025 |
| 9066 | Red Willow Mid-Continent, LLC | Ignacio, CO 81137 | Oil & Gas Operator | Oct 2009 |
| 9067 | Red Willow Production, LLC | Ignacio, CO 81137 | Oil & Gas Operator | Oct 2015 |
| 9068 | Red Wolf Oil Company, Inc. | Brenham, TX 77833 | Oil & Gas Operator | Jul 2025 |
| 9069 | Red-Tex Energy Services, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Nov 2000 |
| 9070 | Red-Tex Petroleum, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Aug 2003 |
| 9071 | Redbird Oilfield Services Corp. | Splendora, TX 77372 | Oil & Gas Operator | Jul 2025 |
| 9072 | Redbud E & P, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Jul 2025 |
| 9073 | Redco Oil & Gas, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Jul 2025 |
| 9074 | Redding, Bobby L. | Three Rivers, TX 78071 | Oil & Gas Operator | Mar 2004 |
| 9075 | Reddirt Operating, LLC. | Midland, TX 79704 | Oil & Gas Operator | Jul 2025 |
| 9076 | Reddy Disposals, LLC | Beeville, TX 78104 | Oil Operator | Jul 2025 |
| 9077 | Redemption Oil & Gas, LLC | San Antonio, TX 78232 | Oil & Gas Operator | Jul 2024 |
| 9078 | Redfish Bay Operating Corp. | San Antonio, TX 78205 | Oil & Gas Operator | Apr 1998 |
| 9079 | Redhorn Resources, LLC | Spring, TX 77393 | Oil Operator | Jul 2025 |
| 9080 | Redman Operating Company | Houston, TX 77042 | Oil & Gas Operator | May 2008 |
| 9081 | Redman Operating Company LLC | Nocona, TX 76255 | Oil Operator | Jul 2025 |
| 9082 | Redmon Oil Company, Inc., The | Plano, TX 75023 | Oil & Gas Operator | Jul 2025 |
| 9083 | Redrock Exploration, Inc | Plano, TX 75025 | Oil Operator | Jul 2014 |
| 9084 | Redstone Oil & Gas Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2020 |
| 9085 | Redstone Operating, Inc. | Austin, TX 78734 | Oil & Gas Operator | Jan 2015 |
| 9086 | Redwine Oil Company | Throckmorton, TX 76483 | Oil & Gas Operator | Jul 2009 |
| 9087 | Redwine Resources Inc | Dallas, TX 75225 | Oil & Gas Operator | Feb 2015 |
| 9088 | Redwood Energy Production, L.P. | San Francisco, CA 94104 | Gas Operator | Jul 2025 |
| 9089 | Redwood Energy, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Jul 1997 |
| 9090 | Redwood Oil & Gas | McKinney, TX 75070 | Oil & Gas Operator | Apr 2013 |
| 9091 | Redwood Operating, Inc. | Houston, TX 77058 | Oil & Gas Operator | Jul 2025 |
| 9092 | Reed Exploration LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2025 |
| 9093 | Reed Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Jun 2005 |
| 9094 | Reed Production, Inc. | Gainesville, TX 76241 | Oil Operator | Jul 2025 |
| 9095 | Reed, Robert T. | Jacksboro, TX 76458 | Oil & Gas Operator | Jul 2025 |
| 9096 | Reed, Trace | Bridgeport, TX 76426 | Oil & Gas Operator | Jul 2025 |
| 9097 | Reeder, Wendell A. | Kilgore, TX 75663 | Oil Operator | Jul 2013 |
| 9098 | Reef Exploration, Inc. (A-1) | Richardson, TX 75080 | Oil & Gas Operator | Oct 2006 |
| 9099 | Reef Exploration, L.P. | Richardson, TX 75080 | Oil & Gas Operator | Jul 2025 |
| 9100 | Reese Wellsite Supervision, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |