| 1 | R & A Moore, Inc. | Cleburne, TX 76033 | Oil & Gas Operator | Dec 2025 |
| 2 | R & B Energy Co. | Ranger, TX 76470 | Oil & Gas Operator | Mar 2008 |
| 3 | R & B Energy, LLC | Shelby, MT 59474 | Oil Operator | Jul 2025 |
| 4 | R & B Oil Company, LLC | Willis, TX 77318 | Oil & Gas Operator | Dec 2025 |
| 5 | R & C Oil Company LLC | Westbrook, TX 79565 | Oil Operator | Dec 2025 |
| 6 | R & C Petroleum, Inc. | Flint, TX 75762 | Oil & Gas Operator | Dec 2025 |
| 7 | R & D Operating | Early, TX 76803 | Oil & Gas Operator | Mar 2008 |
| 8 | R & D Operating, Inc. | Early, TX 76802 | Oil & Gas Operator | Dec 2025 |
| 9 | R & L Producing Co., Inc. | Hamilton, TX 76531 | Oil & Gas Operator | Nov 1997 |
| 10 | R & M Energy | Gonzales, TX 78629 | Oil & Gas Operator | Mar 2006 |
| 11 | R & P Operating | Tuscola, TX 79562 | Oil & Gas Operator | Jun 1997 |
| 12 | R & R Energy, LTD. | Muenster, TX 76252 | Oil Operator | Dec 2025 |
| 13 | R & R Oil & Gas LLC | Big Spring, TX 79720 | Oil & Gas Operator | Dec 2024 |
| 14 | R & R Oil Company | Pampa, TX 79065 | Oil & Gas Operator | Jul 2002 |
| 15 | R & R Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2004 |
| 16 | R & R Well Service | Fort Worth, TX 76120 | Oil & Gas Operator | Jan 2005 |
| 17 | R & R Well Service, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Dec 2025 |
| 18 | R & S Energy Company | Luling, TX 78648 | Oil & Gas Operator | Dec 2010 |
| 19 | R & S Energy, Inc. | Snook, TX 77878 | Oil & Gas Operator | Dec 2025 |
| 20 | R & S Investments | Tulsa, OK 74146-4743 | Oil Operator | Aug 2013 |
| 21 | R & S Oil Production Co. | Luling, TX 78648 | Oil & Gas Operator | Dec 2025 |
| 22 | R J Operating Company | Albany, TX 76430 | Oil & Gas Operator | Jun 2025 |
| 23 | R K Petroleum Corp. | Midland, TX 79708 | Oil & Gas Operator | May 2024 |
| 24 | R R Operation Inc | Cross Plains, TX 76443 | Oil & Gas Operator | Apr 2004 |
| 25 | R W Operating | Graford, TX 76449 | Oil & Gas Operator | Dec 2016 |
| 26 | R W Ranch | San Antonio, TX 78211 | Oil Operator | Dec 2025 |
| 27 | R&F Operating Company | Carthage, TX 75633 | Oil Operator | Dec 2025 |
| 28 | R&K Oil Co. | Nocona, TX 76255 | Oil & Gas Operator | Dec 2025 |
| 29 | R&R Resources Corporation | Houston, TX 77056 | Oil & Gas Operator | Dec 2015 |
| 30 | R-A-R Interests | San Antonio, TX 78209 | Oil & Gas Operator | Feb 2003 |
| 31 | R. & R. Exploration, Inc. | Denton, TX 76202 | Oil Operator | Nov 1993 |
| 32 | R. B. Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Nov 1996 |
| 33 | R. J. Oil Co. | Olney, TX 76374 | Oil & Gas Operator | May 2025 |
| 34 | R. K. G. Engineering, Inc. | Odessa, TX 79760 | Oil & Gas Operator | Dec 2025 |
| 35 | R. Lacy Services, LTD. | Longview, TX 75606 | Oil & Gas Operator | Dec 2025 |
| 36 | R. Pannell Oil Company | Kilgore, TX 75663 | Oil Operator | Jan 2025 |
| 37 | R. W. S. Oil Co. | Grandfalls, TX 79742 | Oil & Gas Operator | Dec 2025 |
| 38 | R.B.S. Oil & Gas Inc. | San Antonio, TX 78278 | Oil & Gas Operator | Dec 2025 |
| 39 | R.C.I. Energy | Alice, TX 78333 | Oil & Gas Operator | Dec 2025 |
| 40 | R.D. Oil Company | Austin, TX 78755 | Oil & Gas Operator | Dec 2025 |
| 41 | R.E.D. Resources, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Apr 2004 |
| 42 | R.J. Riley Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 43 | R.K.G. Operations, Inc. | Odessa, TX 79760 | Oil & Gas Operator | Jun 2004 |
| 44 | R.P.Wilson, Inc. | Stephenville, TX 76401 | Oil & Gas Operator | Jan 2011 |
| 45 | R.T.C. Resources, L.P. | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 46 | R2Q Operating LLC | Iowa Park, TX 76367 | Oil & Gas Operator | Dec 2025 |
| 47 | R3 Operating Corporation | Denver, CO 80222 | Oil & Gas Operator | Dec 2025 |
| 48 | Rabalais, F.W. Inc. | Fort Worth, TX 76101 | Oil & Gas Operator | Sep 2023 |
| 49 | Rabco Energy | Amarillo, TX 79120 | Oil & Gas Operator | Apr 2025 |
| 50 | Rachael Exploration Corp | Traverse City, MI 49686 | Oil & Gas Operator | Apr 2001 |
| 51 | Rad Oil Company | Snyder, TX 79549 | Oil & Gas Operator | Dec 2025 |
| 52 | Radco Operations | Sourlake, TX 77659 | Oil Operator | Nov 2002 |
| 53 | Radco Operations, L.P. | Sourlake, TX 77659 | Oil Operator | Dec 2025 |
| 54 | Radius Operating, LLC | Round Rock, TX 78664 | Oil & Gas Operator | Dec 2025 |
| 55 | Radley Children Trust | El Campo, TX 77437 | Gas Operator | Jul 2007 |
| 56 | Radley Electric, Inc. | Sourlake, TX 77659 | Oil & Gas Operator | Oct 2001 |
| 57 | Radley Equipment | Sourlake, TX 77659 | Oil & Gas Operator | May 2000 |
| 58 | Radley, R. R. | Sourlake, TX 77659 | Oil & Gas Operator | Mar 2008 |
| 59 | Radley, Terry R., Operator | Sourlake, TX 77659 | Oil & Gas Operator | Apr 2006 |
| 60 | Radtke, D.E. & Associates, Inc. | Midland, TX 79710 | Oil & Gas Operator | May 2004 |
| 61 | Rafter L Resources, LLC | Bulverde, TX 78163 | Oil Operator | Dec 2025 |
| 62 | Rafter T Resources LLC | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 63 | Ragars Oil & Gas Co. | Austin, TX 78746 | Oil & Gas Operator | Dec 2025 |
| 64 | Raider Oil & Gas Company | MC Camey, TX 79752 | Oil & Gas Operator | Dec 2025 |
| 65 | Railroad Commission Of Texas | Austin, TX 78701 | Oil Operator | Dec 2004 |
| 66 | Rainbow Energy Corporation | Midland, TX 79701 | Oil & Gas Operator | Nov 2002 |
| 67 | Rainbow Producing Company | Dallas, TX 75204 | Oil & Gas Operator | Aug 2003 |
| 68 | Rainbow Resources, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2007 |
| 69 | Rainbow Seven Oil & Gas, Inc. | Ranger, TX 76470 | Oil & Gas Operator | Dec 2025 |
| 70 | Rainer Energy, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Dec 2025 |
| 71 | Rainey, Wayne | Sweetwater, TX 79556 | Oil & Gas Operator | Feb 2019 |
| 72 | Rainwater, John | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 73 | Rajoil Inc. | Vernon, TX 76384 | Oil & Gas Operator | Aug 2003 |
| 74 | Raker Resources LLC | Houston, TX 77042 | Oil & Gas Operator | Dec 2025 |
| 75 | Ralyn Corp. | Pleasanton, TX 78064 | Oil & Gas Operator | Dec 2025 |
| 76 | Ram Energy LLC | Tulsa, OK 74152 | Oil & Gas Operator | Sep 2025 |
| 77 | Ram Oil And Gas, Inc. | Walsh, CO 81090 | Oil & Gas Operator | Dec 2025 |
| 78 | Ram Operating Company, Inc. | Houston, TX 77002 | Oil & Gas Operator | Sep 2012 |
| 79 | Ram Operating Inc. | Browns, IL 62818 | Oil & Gas Operator | Aug 2008 |
| 80 | Ramco Oil & Gas Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2006 |
| 81 | Ramco Operating Company | Tulsa, OK 74135 | Oil & Gas Operator | Jan 1998 |
| 82 | Rampage Exploration, Inc. | Austin, TX 78737 | Oil & Gas Operator | Dec 2025 |
| 83 | Rampart Petroleum, Incorporated | Buffalo Gap, TX 79508 | Oil & Gas Operator | Jan 2009 |
| 84 | Ramrod Oil And Gas (U.S.A.) Inc. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Dec 2025 |
| 85 | Ramsey & Gassaway | Borger, TX 79008 | Gas Operator | Jun 1999 |
| 86 | Ramsey Production Company, LLC | Austin, TX 78766 | Oil & Gas Operator | Jan 2017 |
| 87 | Ramsey, Sid | Arlington, TX 76010 | Oil & Gas Operator | Aug 2012 |
| 88 | Ramsower Minerals Corporation | Beeville, TX 78104 | Oil & Gas Operator | Sep 2013 |
| 89 | Ramtex Energy LLC | Tulsa, OK 74114 | Oil & Gas Operator | Dec 2025 |
| 90 | Rana Energy Company | Spring, TX 77387 | Oil & Gas Operator | Mar 2008 |
| 91 | Ranch VIew Resources LLC | Houston, TX 77007 | Gas Operator | Aug 2016 |
| 92 | Rancho Blanco Corporation | San Antonio, TX 78205 | Oil & Gas Operator | Apr 1995 |
| 93 | Ranco Energy Services | Inez, TX 77968 | Gas Operator | May 2000 |
| 94 | Rand - Paulson Oil Company, Inc. | Houston, TX 77063 | Oil & Gas Operator | Feb 1999 |
| 95 | Rand Energy Company | Houston, TX 77063 | Oil & Gas Operator | Dec 2025 |
| 96 | Rand Oil & Gas Corp. | Houston, TX 77040 | Oil & Gas Operator | Dec 2025 |
| 97 | Randa Operating, Inc. | Big Lake, TX 76932 | Oil Operator | Dec 2025 |
| 98 | Randall Exploration, LLC | Tulsa, OK 74136 | Oil Operator | Dec 2025 |
| 99 | Randolph Company, The | Houston, TX 77219 | Oil & Gas Operator | Aug 2003 |
| 100 | Range Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2021 |