| 3701 | Ratzlaff, Steven | Galva, KS 67443 | Oil Operator | Dec 1996 |
| 3702 | Raven Resources LLC | Oklahoma City, OK 73172 | Oil & Gas Operator | Nov 2025 |
| 3703 | Raw Energy Corporation Of Kansas | Weatherford, TX 76086 | Gas Operator | Dec 2019 |
| 3704 | Raydon Exploration, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2026 |
| 3705 | Raygary Oil Co. | Havana, KS 67347 | Oil Operator | May 2002 |
| 3706 | Raygary Oil Comp | | Oil Operator | Sep 1991 |
| 3707 | Raymond Oil Co I | | Gas Operator | Sep 1993 |
| 3708 | Raymond Oil Co., Inc. | Wichita, KS 67201 | Oil & Gas Operator | Sep 2025 |
| 3709 | Raymond Oil Comp | | Oil & Gas Operator | Dec 1996 |
| 3710 | Razook Oil Compa | | Oil Operator | Aug 1990 |
| 3711 | Razorback Explor | | Gas Operator | Dec 1992 |
| 3712 | RBM Oil LLC | Hillsboro, KS 67063 | Oil Operator | Sep 2025 |
| 3713 | RCR Drilling & P | | Oil & Gas Operator | Apr 1992 |
| 3714 | RCS Oil | | Oil Operator | Sep 2025 |
| 3715 | RDH Enterprises Inc | El Reno, OK 73036 | Oil & Gas Operator | May 2015 |
| 3716 | Reach Group-Reac | | Oil & Gas Operator | Apr 1995 |
| 3717 | Reach Petroleum | | Oil & Gas Operator | Jan 1994 |
| 3718 | Reach Petroleum Corporation | Wichita, KS 67218 | Oil & Gas Operator | Dec 2009 |
| 3719 | Reata Petroleum LLC | Independence, KS 67301 | Oil & Gas Operator | Sep 2025 |
| 3720 | Rebel Oil LLC | | Oil Operator | Sep 2025 |
| 3721 | Recovery Resourc | | Oil Operator | Dec 1986 |
| 3722 | Red Bear Drillin | | Oil & Gas Operator | Sep 1992 |
| 3723 | Red Buck Oil Company | Copan, OK 74022-0215 | Oil Operator | Nov 2009 |
| 3724 | Red Cedar Oil, LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Jul 2025 |
| 3725 | Red Cloud Exploration Operating LLC | Calabasas, CA 91302 | Oil Operator | Feb 2016 |
| 3726 | Red Hills Energy, LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Sep 2025 |
| 3727 | Red Hills Resources, Inc. | Englewood, KS 67840 | Oil & Gas Operator | Sep 2025 |
| 3728 | Red Jack Oil LLC | | Oil Operator | May 2013 |
| 3729 | Red Mountain Oil LLC | Golden, CO 80402 | Oil Operator | Nov 1997 |
| 3730 | Red Oak Energy, Inc. | Wichita, KS 67207 | Oil & Gas Operator | Sep 2025 |
| 3731 | Red Point Oil | | Oil Operator | May 2019 |
| 3732 | Redboot Production, Inc | Stafford, KS 67578 | Gas Operator | Jan 2017 |
| 3733 | Redbud Oil & Gas Operating, LLC | Spring, TX 77379 | Oil & Gas Operator | Sep 2025 |
| 3734 | Reddig Enterprises Inc. | Gorham, KS 67640 | Oil Operator | Aug 2025 |
| 3735 | Redland Resources LLC | Oklahoma City, OK 73127 | Oil & Gas Operator | Dec 2025 |
| 3736 | Redstone Oil & G | | Oil Operator | Sep 1989 |
| 3737 | Redstone Oil & Gas Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2020 |
| 3738 | Redtail Investments LLC | Oklahoma City, OK 73179 | Oil & Gas Operator | Dec 2025 |
| 3739 | Redtail Resources, LLC | Shawnee, KS 66226 | Oil Operator | Aug 2025 |
| 3740 | Reed Oil Company | Gainesville, TX 76241 | Oil & Gas Operator | Jun 2005 |
| 3741 | Reed Oil, LLC | Louisburg, KS 66053 | Oil Operator | Sep 2025 |
| 3742 | Reed, George A. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2009 |
| 3743 | Reef Exploration Corporation | Richardson, TX 75080 | Oil Operator | Sep 2019 |
| 3744 | Reef Operating, Inc. | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 3745 | Reese Exploratio | | Oil & Gas Operator | Mar 1995 |
| 3746 | Reese Oil Company | Raytown, MO 64133 | Oil Operator | Jan 1999 |
| 3747 | Regency Field Services LLC | Dallas, TX 75201 | Oil Operator | Jul 2017 |
| 3748 | Regency Midcon Gas LLC | Dallas, TX 75201 | Oil Operator | Oct 2014 |
| 3749 | Reh Oil And Gas, LLC. | Pratt, KS 67124 | Oil & Gas Operator | Apr 2019 |
| 3750 | Reichlinger Business Services | | Oil Operator | Apr 2014 |
| 3751 | Reif Oil & Gas Company LLC | Hoisington, KS 67544 | Oil Operator | Aug 2010 |
| 3752 | Reif Oil Operati | | Oil Operator | Nov 1988 |
| 3753 | Reilly Oil Company, Inc. | Wakeeney, KS 67672 | Oil Operator | Sep 2025 |
| 3754 | Reilly Oil E & P | | Oil Operator | Sep 2025 |
| 3755 | Relative Energy, Inc. | Lindsborg, KS 67456 | Oil Operator | May 2025 |
| 3756 | Reliance Oil, LLC | Gridley, KS 66852 | Oil Operator | Sep 2025 |
| 3757 | Remco Ener Corpo | | Oil & Gas Operator | Dec 1994 |
| 3758 | Remco Energy Corporation | Independence, MO 64055 | Oil & Gas Operator | Nov 2009 |
| 3759 | Remington Financ | | Oil Operator | Oct 1994 |
| 3760 | Renegade Resources Corp. | Reno, NV 89511 | Oil & Gas Operator | Jul 2024 |
| 3761 | Renick Energy, L.C. | Cimarron, KS 67835 | Gas Operator | Apr 2016 |
| 3762 | Resource Oil And Gas, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Feb 2026 |
| 3763 | Resource Operations Inc | Tulsa, OK 74157 | Oil & Gas Operator | May 2016 |
| 3764 | Resource Venture | | Oil & Gas Operator | Oct 1991 |
| 3765 | Resources & Investment Co. | Mandeville, LA 70448 | Oil Operator | Oct 2023 |
| 3766 | Resources Invest | | Oil & Gas Operator | Jun 1985 |
| 3767 | Resources Investment Corp | Denver, CO 80202 | Oil & Gas Operator | Sep 2018 |
| 3768 | Ressler Well Service, Inc. | Burrton, KS 67020 | Oil & Gas Operator | Sep 2025 |
| 3769 | Reusch Well Service, Inc. | Ottawa, KS 66067 | Oil Operator | Dec 2019 |
| 3770 | Rexoco Incorpora | | Oil Operator | Apr 1992 |
| 3771 | Reynolds Oil Company | | Oil Operator | Nov 2005 |
| 3772 | RFB Exploration | | Oil Operator | Feb 1981 |
| 3773 | RGN Company, Inc. | Stockton, KS 67669 | Oil Operator | Aug 2025 |
| 3774 | RH Capital-Beets, LLC | Jefferson City, MO 65101 | Oil Operator | Sep 2025 |
| 3775 | Rhea, Andrew | Galva, KS 67443 | Oil & Gas Operator | Aug 2025 |
| 3776 | Rheem Resources Inc | Wichita, KS 67220 | Oil Operator | Aug 1998 |
| 3777 | Rhoads, Mark | Seminole, OK 74868 | Oil Operator | Sep 1999 |
| 3778 | Rhodes Well Service | | Oil Operator | Sep 2025 |
| 3779 | Rice Engineering | | Oil & Gas Operator | Jul 1988 |
| 3780 | Rice Engineering Corporation | Great Bend, KS 67530 | Oil & Gas Operator | Feb 2023 |
| 3781 | Rice Oil Co | Hobbs, NM 88240 | Oil & Gas Operator | Dec 2020 |
| 3782 | Rice Production Company | | Oil Operator | Dec 2019 |
| 3783 | Richard Engineer | | Oil Operator | Mar 1991 |
| 3784 | Richard Oil Comp | | Oil Operator | Mar 1992 |
| 3785 | Richardson And Son , Inc. | Winfield, KS 67156 | Oil Operator | Sep 2025 |
| 3786 | Richardson Developments | | Oil Operator | Apr 2025 |
| 3787 | Richardson J Mar | | Oil & Gas Operator | Apr 1995 |
| 3788 | Richardson Oil | | Oil & Gas Operator | Dec 2019 |
| 3789 | Richardson Oil Operating | | Oil & Gas Operator | Dec 2009 |
| 3790 | Richey Heartsill | | Oil Operator | Feb 1991 |
| 3791 | Richlan Drilling | | Oil Operator | Dec 1994 |
| 3792 | Richlan Drilling, A General Partnership | Beaver, KS 67525 | Oil & Gas Operator | Sep 2025 |
| 3793 | Richland Oil Investments, LLC | Palco, KS 67657 | Oil Operator | Sep 2025 |
| 3794 | Rick'S Well Service | Cherryvale, KS 67335 | Oil & Gas Operator | Apr 2023 |
| 3795 | Rickerson, Russell | Rantoul, KS 66079 | Oil Operator | Aug 2025 |
| 3796 | Rider Oil & Gas | | Oil Operator | Aug 1991 |
| 3797 | Rider, Don C. | Medicine Lodge, KS 67104 | Gas Operator | Mar 2000 |
| 3798 | Riegel, Steven | Ford, KS 67842 | Oil & Gas Operator | Mar 2017 |
| 3799 | Rieke, Leo Ernest | Lenexa, KS 66219 | Oil & Gas Operator | Aug 1986 |
| 3800 | Rierson Energy, LLC | McPherson, KS 67460 | Oil & Gas Operator | Sep 2025 |