| 1 | R.J. Riley Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 2 | Rainwater, John | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 3 | Ram Oil And Gas, Inc. | Walsh, CO 81090 | Oil & Gas Operator | Jun 2025 |
| 4 | Ram Operating Inc. | Browns, IL 62818 | Oil & Gas Operator | Aug 2008 |
| 5 | Ramco Oil & Gas Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2006 |
| 6 | Ramco Operating Company | Tulsa, OK 74135 | Oil & Gas Operator | Jan 1998 |
| 7 | Ranger Operating Co. | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 8 | Ray Herring Estate | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 9 | Ray Herring Operating Co., LLC | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 10 | Raylee Operating Company | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 11 | Red-Tex Petroleum, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Aug 2003 |
| 12 | Redwood Operating, Inc. | Houston, TX 77058 | Oil & Gas Operator | Jun 2025 |
| 13 | Reese Wellsite Supervision, LLC | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 14 | Regal Petroleum Services | Euless, TX 76039 | Oil & Gas Operator | Aug 2002 |
| 15 | Rehoboth Oil & Gas LLC | Baytown, TX 77521 | Oil Operator | Oct 2011 |
| 16 | Remington Oil | South Bend, TX 76481 | Oil & Gas Operator | Mar 2008 |
| 17 | Reneau Oil Co. | Shamrock, TX 79079 | Oil & Gas Operator | Jun 2025 |
| 18 | Reo Operating LLC | Austin, TX 78747 | Oil & Gas Operator | Jun 2025 |
| 19 | Retamco Operating Inc | Red Lodge, MT 59068 | Oil & Gas Operator | Mar 2025 |
| 20 | Reynolds, E. P., Jr. | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 21 | Rhodes Disposal, Inc. | Bryson, TX 76427 | Oil Operator | Jun 2025 |
| 22 | Ric Petroleum, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2003 |
| 23 | Richards, Michael Dewain | Graham, TX 76450 | Oil & Gas Operator | Apr 2011 |
| 24 | Richards, Tot Oil Co. | Abilene, TX 79601 | Oil & Gas Operator | Jun 2025 |
| 25 | Richey, Ray Management Co., Inc. | Fort Worth, TX 76108 | Oil & Gas Operator | Jun 2025 |
| 26 | Rico Oil Company | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 27 | Ridge Oil Company | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2025 |
| 28 | Riggs Petroleum Company | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 29 | Rio Grande Drilling Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 1999 |
| 30 | Ritter, Laber & Associates, Inc. | Williston, ND 58802 | Oil & Gas Operator | Oct 2024 |
| 31 | Rivercity Operating, Inc. | Austin, TX 78766 | Oil & Gas Operator | Jun 2025 |
| 32 | RMR Oil Company | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2005 |
| 33 | Robert C. Brower, LLC | Southlake, TX 76092 | Oil & Gas Operator | Jun 2025 |
| 34 | Robinson Oil Co. | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 35 | Robuck Petroleum, LLC | Nacogdoches, TX 75965 | Oil & Gas Operator | Jun 2025 |
| 36 | Rocking, R, Drilling & Prod Co. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2025 |
| 37 | Rockwood Resources Inc | Coleman, TX 76834 | Oil & Gas Operator | Jun 2025 |
| 38 | Rodgers, William L. | Fort Worth, TX 76147 | Oil & Gas Operator | Jan 1995 |
| 39 | Rog Enterprises, Inc. | Lake Dallas, TX 75065 | Oil Operator | May 2014 |
| 40 | Rog Enterprises, LLC | Burkburnett, TX 76354 | Oil Operator | Jun 2025 |
| 41 | Rogers Drilling Co. | Olney, TX 76374 | Oil & Gas Operator | Jun 2025 |
| 42 | Romac Oil Company, Inc. | Throckmorton, TX 76483 | Oil & Gas Operator | Jun 2025 |
| 43 | Rover Operating Company, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 2025 |
| 44 | Royal Oil LTD. Co. | Hobbs, NM 88241 | Oil & Gas Operator | Mar 1996 |
| 45 | Running WP Oil, LLC | Loving, TX 76460 | Oil Operator | Jun 2025 |
| 46 | Rush Creek Operating LLC | McKinney, TX 75070 | Oil & Gas Operator | Jun 2025 |
| 47 | Rush, Charles Ray | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 48 | Rust Oil Corp. | Fort Worth, TX 76108 | Oil & Gas Operator | Jun 2025 |
| 49 | Ruthson Energy, Inc. | Judson, TX 75660 | Oil Operator | Jun 2025 |
| 50 | Rwa, LLC | Boyd, TX 76023 | Oil & Gas Operator | Jun 2025 |
| 51 | Ryan, Joseph G. | Graham, TX 76450 | Oil & Gas Operator | Jun 2025 |
| 52 | Ryder Scott Management, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2018 |
| 53 | Ryder Scott Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2005 |