| 3701 | Robertson, Richard | Tulsa, OK 74127 | Gas Operator | Mar 2025 |
| 3702 | Robinette Oil Company LLC | Chanute, KS 66720 | Oil Operator | Mar 2025 |
| 3703 | Robinowitz Oil C | | Oil Operator | Dec 1996 |
| 3704 | Robinowitz Oil Company, A General Partnership | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2023 |
| 3705 | Robinson Energy & Exploration, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Aug 2008 |
| 3706 | Robinson Oil Co. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 3707 | Robinson Oil Com | | Oil & Gas Operator | Feb 1995 |
| 3708 | Robinson, Beryl A. | Peru, KS 67360 | Oil & Gas Operator | Mar 2012 |
| 3709 | Robison, L. E. Oil | Yates Center, KS 66783 | Oil Operator | Sep 2001 |
| 3710 | Robl-Six, Inc. | Ellinwood, KS 67526 | Oil Operator | Dec 2019 |
| 3711 | Robuck Petroleum, LLC | Nacogdoches, TX 75965 | Oil & Gas Operator | Jul 2025 |
| 3712 | Rock Bottom Oil | | Oil Operator | Feb 2025 |
| 3713 | Rock Creek Crude, LLC | Morrill, KS 66515 | Oil Operator | Mar 2025 |
| 3714 | Rock Creek Resources LLC | Englewood, CO 80112 | Oil & Gas Operator | Dec 2021 |
| 3715 | Rock Oil Company | Broken Arrow, OK 74014-6106 | Oil & Gas Operator | Apr 2025 |
| 3716 | Rock Oil Corporation | Lawrence, KS 66046 | Oil Operator | Oct 2004 |
| 3717 | Rock Petroleum, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2024 |
| 3718 | Rockhound Petroleum, LLC | St. John, KS 67576 | Oil & Gas Operator | Mar 2025 |
| 3719 | Rockin 'A' Oil | | Oil Operator | Mar 2025 |
| 3720 | Rockin 9 Oil And Gas, LLC | Auburndale, FL 33823 | Gas Operator | Mar 2025 |
| 3721 | Rockin Bar Nothin Ranch, Inc. | Independence, KS 67301 | Oil Operator | Mar 2025 |
| 3722 | Rockin G. Energy, LLC | Weatherford, TX 76087 | Gas Operator | Sep 2020 |
| 3723 | Rockin K Enterprises LLC | Riverside, MO 64168 | Oil Operator | Feb 2025 |
| 3724 | Rockwall Energy LLC | Colony, KS 66015 | Oil Operator | Feb 2025 |
| 3725 | Rockwood Petrole | | Oil Operator | Aug 1985 |
| 3726 | Rocky Road Oil Company | | Oil Operator | May 2024 |
| 3727 | Rodeo Resources | | Oil Operator | Jul 1986 |
| 3728 | Rodgers, Murray | Sedan, KS 67361 | Oil Operator | Oct 1996 |
| 3729 | Rodriguez, Everado | Paola, KS 66071 | Oil Operator | Mar 2021 |
| 3730 | Roemer Oil Company | Denver, CO 80202 | Oil & Gas Operator | Nov 1998 |
| 3731 | Rogers Merlin D | | Oil Operator | Feb 2001 |
| 3732 | Rogers Oil Co. | Bronson, KS 66716 | Oil & Gas Operator | Sep 1995 |
| 3733 | Rogers Oil Compa | | Oil Operator | Apr 1993 |
| 3734 | Rolfe & Rolfe Oi | | Oil Operator | May 1988 |
| 3735 | Rolling Meadows Oil & Gas Development, LLC | Centerville, KS 66014 | Oil Operator | Mar 2025 |
| 3736 | Rome Oil, LLC | Lakewood, CO 80232 | Oil Operator | Mar 2025 |
| 3737 | Ron Brooks Corp | | Oil Operator | Sep 1995 |
| 3738 | Ron'S Oil Oper I | | Oil Operator | Nov 1994 |
| 3739 | Ron'S Oil Operations Inc | Penokee, KS 67659 | Oil Operator | Dec 2018 |
| 3740 | Ron-Bob Oil LLC | Neosho Falls, KS 66758 | Oil Operator | Mar 2025 |
| 3741 | Ronald Russ Prater, Inc. | Eastborough, KS 67207 | Gas Operator | Nov 2024 |
| 3742 | Ronco Incorporat | | Oil Operator | Sep 1988 |
| 3743 | Rookstool, William A. | Edmond, OK 73034 | Gas Operator | Jan 1999 |
| 3744 | Rosel Energy, Inc. | Liberal, KS 67901 | Oil & Gas Operator | Jul 2004 |
| 3745 | Rosewood Resources, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Jul 2025 |
| 3746 | Rowden, John A. | Chanute, KS 66720 | Oil Operator | Oct 1998 |
| 3747 | Roxana Corporati | | Oil & Gas Operator | Feb 1993 |
| 3748 | Roxanna Pipeline, Inc. | Dallas, TX 75206 | Oil & Gas Operator | May 2010 |
| 3749 | Roy Farr Heirs | | Oil Operator | Jun 2013 |
| 3750 | Royal Drilling Inc | Russell, KS 67665 | Oil Operator | Mar 2025 |
| 3751 | Royal Energy, Inc. | Dodge City, KS 67801 | Oil Operator | Dec 2019 |
| 3752 | Royal Petroleum | Baytown, TX 77521 | Oil & Gas Operator | Aug 2003 |
| 3753 | RSD Minerals LLC | Wichita, KS 67206 | Oil Operator | Oct 2024 |
| 3754 | Ruda Exploration Inc | Atwood, KS 67730 | Oil Operator | Mar 2025 |
| 3755 | Rude Crude | | Oil Operator | Mar 2025 |
| 3756 | Running Foxes Petroleum Inc. | Centennial, CO 80112 | Oil & Gas Operator | Mar 2025 |
| 3757 | Rupe Oil Company, Inc. | Wichita, KS 67278 | Oil & Gas Operator | Mar 2025 |
| 3758 | Rush Oil & Gas C | | Oil Operator | Dec 1995 |
| 3759 | Rush, Terry L. | Wakeeney, KS 67672 | Oil Operator | Feb 2025 |
| 3760 | Rushmore & Tresn | | Oil Operator | Jan 1995 |
| 3761 | Russco Energy In | | Oil Operator | Jun 1994 |
| 3762 | Russco Energy, Inc. | Gladstone, MO 64118 | Oil Operator | Apr 2002 |
| 3763 | Russell Gas Co., LLC | Hugoton, KS 67451 | Gas Operator | Mar 2025 |
| 3764 | Russell James E | | Oil Operator | Apr 1994 |
| 3765 | Russell Oil, Inc. | Edmond, OK 73083 | Oil Operator | Mar 2025 |
| 3766 | Russell, Gerald W. | Tulsa, OK 74103 | Oil Operator | Feb 1986 |
| 3767 | Ryan, Daniel J. | Oklahoma City, OK 73139 | Oil Operator | Sep 2003 |
| 3768 | Ryholland Fielder, Inc | Delray Beach, FL 33446 | Oil & Gas Operator | Jul 2025 |
| 3769 | S & B Oil Oper - | | Oil Operator | Dec 1996 |
| 3770 | S & B Operating, LLC | Iowa Park, TX 76367 | Oil Operator | Jul 2025 |
| 3771 | S & C Construction, Inc. | Whitefish, MT 59937 | Oil & Gas Operator | Jul 2025 |
| 3772 | S & H Oilfield Enterprises | | Oil & Gas Operator | Sep 2023 |
| 3773 | S & J Oil | Hays, KS 67601 | Oil Operator | Feb 2002 |
| 3774 | S & J Operating | | Oil Operator | May 1989 |
| 3775 | S & K Oil Compan | | Oil Operator | Sep 1989 |
| 3776 | S & K Oil Production, Inc. | Blue Mound, KS 66010 | Oil Operator | Mar 2025 |
| 3777 | S & M Oil | Hays, KS 67601 | Oil Operator | Aug 2003 |
| 3778 | S & M Oil - Craw | | Oil Operator | Dec 1995 |
| 3779 | S & S Oil | Ponca City, OK 74601 | Oil & Gas Operator | Dec 2009 |
| 3780 | S & S Oil & Gas LLC | Skiatook, OK 74070 | Oil & Gas Operator | Jul 2016 |
| 3781 | S & S Oil Company | Electra, TX 76360 | Oil & Gas Operator | Jul 2025 |
| 3782 | S & S Oil Leasing | Chase, KS 67524 | Oil Operator | Mar 2025 |
| 3783 | S & S Oil, L.L.C. | Chase, KS 67524 | Oil Operator | Mar 2025 |
| 3784 | S & T Oil Compan | | Oil Operator | Feb 1984 |
| 3785 | S & V Oil Incorp | | Oil & Gas Operator | Apr 1990 |
| 3786 | S & W Drilling C | | Oil Operator | May 1985 |
| 3787 | S & W Oil & Gas, LLC | Pampa, TX 79066 | Oil & Gas Operator | Jul 2025 |
| 3788 | S & W Oil Compan | | Oil Operator | Dec 1986 |
| 3789 | S C Z Oil Compan | | Oil & Gas Operator | Feb 1995 |
| 3790 | S J Oil Co. | Ellinwood, KS 67526 | Oil Operator | Jun 2000 |
| 3791 | S-2 Oil Company | | Oil Operator | Mar 1994 |
| 3792 | S. R. Weilert Oil LLC | Wichita, KS 67208 | Oil Operator | Nov 2005 |
| 3793 | S.B. Oil Company, A General Partnership | Hays, KS 67601 | Oil Operator | Sep 2019 |
| 3794 | S.J. Titan Co., A General Partnership | Hutchinson, KS 67502 | Oil & Gas Operator | May 2015 |
| 3795 | Saaw Operating LLC | Protection, KS 67127 | Oil & Gas Operator | Mar 2025 |
| 3796 | Sabine Corporation | Oklahoma City, OK 73116 | Oil & Gas Operator | Jul 1996 |
| 3797 | Sabine Productio | | Oil & Gas Operator | Mar 1994 |
| 3798 | Sabre Exploratio | | Oil Operator | Oct 1988 |
| 3799 | Sabre Exploration, LLC | Wichita, KS 67205 | Oil Operator | Mar 2025 |
| 3800 | Sabre Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2025 |