| 3701 | Range Louisiana Operating, LLC | | Oil & Gas Operator | Aug 2020 |
| 3702 | Range Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Sep 2021 |
| 3703 | Ranger Holdings Co | | Oil & Gas Operator | Jul 1993 |
| 3704 | Ranger Investments, Inc. | Longview, TX 75605 | Oil & Gas Operator | Nov 2006 |
| 3705 | Ranger Oil Company | Canada, 00100 | Oil & Gas Operator | Sep 2001 |
| 3706 | Ranger, Inc. | | Oil & Gas Operator | Dec 1986 |
| 3707 | Ransom Horne,Jr. | | Oil & Gas Operator | Dec 1991 |
| 3708 | Rapiere Resources Company | | Oil & Gas Operator | Jul 2023 |
| 3709 | Raptor Resources, Inc. | Austin, TX 78701 | Oil & Gas Operator | May 2024 |
| 3710 | Rauch, Shaw & Laird, Inc. | | Oil & Gas Operator | Mar 1995 |
| 3711 | Rauch-Shaw Assoc. Inc. & Laird | | Oil & Gas Operator | Mar 1991 |
| 3712 | Ray Conner | | Oil & Gas Operator | Apr 2002 |
| 3713 | Ray Energy, LLC | | Oil Operator | Jan 2024 |
| 3714 | Ray Estis | | Oil Operator | Dec 2023 |
| 3715 | Ray Oil Company | Dallas, TX 75382 | Oil Operator | Dec 1989 |
| 3716 | Raybo, Inc. | | Oil Operator | Dec 1990 |
| 3717 | Rayford Exploration | | Oil Operator | Feb 1984 |
| 3718 | Rayville Resources, Inc. | | Oil & Gas Operator | Aug 1991 |
| 3719 | RBD-Shelby Agency | Dallas, TX 75283 | Oil & Gas Operator | Dec 1993 |
| 3720 | Rbi, Inc. | | Oil Operator | Dec 1984 |
| 3721 | RCV Investments, LLC | | Oil & Gas Operator | Jan 2024 |
| 3722 | RDT Properties, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Oct 2012 |
| 3723 | Reagan Exploration Company Inc | | Oil & Gas Operator | Nov 1998 |
| 3724 | Realco Oil & Gas, Inc. | | Oil & Gas Operator | Oct 2007 |
| 3725 | Reb Petroleum Company | Sugar Land, TX 77478 | Oil & Gas Operator | May 2024 |
| 3726 | Rebel Drilling Co. Inc. | | Oil & Gas Operator | Oct 1995 |
| 3727 | Rebel Enterprises, Inc. | | Oil Operator | Dec 1991 |
| 3728 | Rebel Land And Exploration Inc | | Oil & Gas Operator | Aug 1989 |
| 3729 | Rebel Oil Company | Keaton, KY 41226 | Oil & Gas Operator | Jan 2024 |
| 3730 | Rebel Oil Of North Louisiana, LLC | | Oil & Gas Operator | Dec 2007 |
| 3731 | Rebel Production Company | Kilgore, TX 75663 | Oil Operator | May 2024 |
| 3732 | Recon Operating, Inc. | | Oil & Gas Operator | Jun 1991 |
| 3733 | Red River Oil & Gas Inc. | | Oil & Gas Operator | May 2012 |
| 3734 | Red Rock Energy Group Inc | | Oil & Gas Operator | Dec 2023 |
| 3735 | Red Rock Production L.L.C. | | Oil Operator | Jan 2024 |
| 3736 | Red Rooster Gas Corporation | | Gas Operator | Sep 1993 |
| 3737 | Red Willow Offshore, LLC | | Oil & Gas Operator | Apr 2011 |
| 3738 | Red Wing Oil & Gas, Inc. | | Oil Operator | Sep 1990 |
| 3739 | Redd Production Of Mansfield | | Oil & Gas Operator | Jan 1991 |
| 3740 | Redman Operating Company | Houston, TX 77042 | Oil & Gas Operator | May 2008 |
| 3741 | Redmon Oil Company, Inc., The | Plano, TX 75023 | Oil & Gas Operator | May 2024 |
| 3742 | Reeder Production | | Oil Operator | Oct 2005 |
| 3743 | Reef Exploration Inc | Denver, CO 80202 | Oil & Gas Operator | Feb 2007 |
| 3744 | Reef Exploration, L.P. | Richardson, TX 75080 | Oil & Gas Operator | May 2024 |
| 3745 | Reese Energy Corp. | | Oil & Gas Operator | Oct 1991 |
| 3746 | Reese Oil & Gas LTD | | Oil & Gas Operator | Sep 1991 |
| 3747 | Refined Products, Inc. | Beaumont, TX 77705 | Oil Operator | May 2024 |
| 3748 | Regal Petroleum Services, Inc. | Euless, TX 76039-1127 | Oil & Gas Operator | May 2015 |
| 3749 | Regency Field Services LLC | Dallas, TX 75201 | Oil Operator | Jul 2017 |
| 3750 | Regency Gas Gathrng & Proc LLC | | Oil Operator | Sep 2007 |
| 3751 | Regency Intrastate Gas LLC | | Oil Operator | Feb 2009 |
| 3752 | Reita Oil Company | | Oil & Gas Operator | Jan 1987 |
| 3753 | Relco Exploration Co., Inc. | | Gas Operator | Aug 1987 |
| 3754 | Reliable Prod Service Inc. | | Oil Operator | Mar 2007 |
| 3755 | Reliance Energy, L.L.C. | | Oil & Gas Operator | Dec 2023 |
| 3756 | Reliance Petroleum Corporation | | Oil & Gas Operator | Oct 2018 |
| 3757 | Reliance TR-JV | | Gas Operator | Apr 1988 |
| 3758 | Reliance Trusts | Dallas, TX 75244 | Oil & Gas Operator | Nov 1995 |
| 3759 | Reliance Well Service, Inc. | | Oil & Gas Operator | Apr 1997 |
| 3760 | Reliant Energy Field SVS Inc. | | Oil Operator | Sep 2002 |
| 3761 | Relmm Corporation | | Oil & Gas Operator | May 1980 |
| 3762 | Remuda Oil & Gas Corp. | | Oil & Gas Operator | Aug 1987 |
| 3763 | Remuda Operating Company | Midland, TX 79711 | Oil & Gas Operator | May 2024 |
| 3764 | Renaissance Offshore, LLC | | Oil & Gas Operator | Mar 2023 |
| 3765 | Renaissance Petroleum Co LLC | Houston, TX 77058 | Oil & Gas Operator | Nov 2011 |
| 3766 | Rental & Fishing Tools, Inc. | | Oil Operator | Dec 2023 |
| 3767 | Republic Energy Resources,Inc. | | Oil Operator | May 1991 |
| 3768 | Republic Gas Gathering Sys Inc | | Oil & Gas Operator | Nov 1981 |
| 3769 | Republic Mineral Corporation | | Oil & Gas Operator | Sep 1987 |
| 3770 | Republic Petroleum Corp. | | Oil & Gas Operator | Nov 1977 |
| 3771 | Republic Prod.Co.Of Tex., Inc | | Oil & Gas Operator | Jun 1981 |
| 3772 | Research Enterprises, Inc. | | Oil Operator | Feb 1996 |
| 3773 | Reserve Oil Inc. | | Oil & Gas Operator | Jan 1980 |
| 3774 | Reserve Partners L.L.C. | | Oil & Gas Operator | Feb 2001 |
| 3775 | Resource Acquisitions Corp. | | Oil & Gas Operator | Dec 2002 |
| 3776 | Resource Securities Corp. | | Oil & Gas Operator | Mar 2005 |
| 3777 | Resources America, Inc | | Oil Operator | Jan 1983 |
| 3778 | Resources Investment Corp | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 3779 | Retsal Drilling Co. | | Oil & Gas Operator | Jan 1984 |
| 3780 | Retsal Production Company | | Oil & Gas Operator | Mar 1986 |
| 3781 | Reunion Energy Company | Houston, TX 77056 | Oil & Gas Operator | May 1996 |
| 3782 | Reunion Resources, Inc. | | Oil & Gas Operator | Dec 2015 |
| 3783 | Reunion Titan, Inc. | | Oil & Gas Operator | Jan 2017 |
| 3784 | Revel Oil & Gas, Inc. | | Oil & Gas Operator | Feb 2001 |
| 3785 | Revilo Exploration, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Jul 2021 |
| 3786 | Reynolds Drill Coinc/Rosbottom | | Oil & Gas Operator | Jan 1990 |
| 3787 | Reynolds Drilling Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | May 2024 |
| 3788 | Reynolds E & P, Inc. | Shreveport, LA 71105 | Oil & Gas Operator | May 2024 |
| 3789 | Reynolds Oil Co. | | Oil Operator | Nov 2005 |
| 3790 | Rhoads Oil, LLC | | Oil Operator | Jan 2024 |
| 3791 | Riceland Petroleum Company | | Oil & Gas Operator | Dec 2023 |
| 3792 | Richard A. Williams Expl Corp. | | Oil & Gas Operator | Dec 1983 |
| 3793 | Richard B. Nelson,Etal | | Oil & Gas Operator | May 1979 |
| 3794 | Richard C. Hinds | | Oil Operator | Jan 2024 |
| 3795 | Richard H. Lee, L.L.C. | | Oil & Gas Operator | Sep 1999 |
| 3796 | Richard Nelson | | Oil Operator | Feb 1987 |
| 3797 | Richard T. Perry | | Gas Operator | May 1993 |
| 3798 | Richardson Energy Corporation | | Oil & Gas Operator | Dec 1987 |
| 3799 | Ricks & Ricks Oil Producers | | Oil Operator | Sep 1983 |
| 3800 | Ridgelake Energy, Inc. | | Oil & Gas Operator | Jul 2020 |