| 801 | Koehn, Max R. | Copeland, KS 67837 | Oil & Gas Operator | Oct 2019 |
| 802 | Koehn, Radell W. And Austin Koehn & Morgan Koehn | Galva, KS 67443 | Oil Operator | Dec 2023 |
| 803 | Koehn, Roger D. | Galva, KS 67443 | Oil Operator | Apr 1998 |
| 804 | Koelsch Rex Or Marie | Tulsa, OK 74107-8647 | Oil & Gas Operator | May 2023 |
| 805 | Kohler Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 1994 |
| 806 | Kojo Energy, Inc. | Odessa, TX 79760 | Oil & Gas Operator | Apr 2024 |
| 807 | Koko Skadi, LLC | Austin, TX 78731 | Oil & Gas Operator | Apr 2024 |
| 808 | Kokomo Energy, Inc. | Gorman, TX 76454 | Oil & Gas Operator | Apr 2024 |
| 809 | Kokomo Oil Company | Houston, TX 77227 | Oil & Gas Operator | Apr 1998 |
| 810 | Kolar Petroleum Inc | Oklahoma City, OK 73162-1509 | Oil & Gas Operator | Jun 2007 |
| 811 | Kolb, James | Aspermont, TX 79502 | Oil & Gas Operator | Jul 2003 |
| 812 | Kollao Properties LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2024 |
| 813 | Konantz, Inc. | | Oil & Gas Operator | Jan 1995 |
| 814 | Koonce Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Oct 1993 |
| 815 | Koontz Oil Company | Nocona, TX 76255 | Oil Operator | Aug 2022 |
| 816 | Kop-Mor Producti | | Oil Operator | Sep 1992 |
| 817 | Kopco, Inc. | Caney, KS 67333 | Oil & Gas Operator | Jan 2024 |
| 818 | Koram Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2006 |
| 819 | Kore Energy LLC | | Oil & Gas Operator | Nov 2023 |
| 820 | Korman Exploration, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2001 |
| 821 | Kornblit, Majir | | Oil Operator | Nov 1998 |
| 822 | Kornye-Tillman Company | Cleburne, TX 76031 | Oil & Gas Operator | Apr 2024 |
| 823 | Koron Investments, Inc. | Hays, KS 67601 | Oil Operator | Dec 2023 |
| 824 | Kosarek, Charlie | San Antonio, TX 78213 | Oil & Gas Operator | Oct 2006 |
| 825 | Kot, Inc. | Lost Springs, KS 66859 | Oil Operator | Aug 2016 |
| 826 | Kotlowski, Keith | Alden, NY 14004 | Oil & Gas Operator | Dec 2022 |
| 827 | Kottwitz Oil Co., A General Partnership | | Oil Operator | Jul 2019 |
| 828 | Kouatli, Aiman M. | Caldwell, TX 77836 | Oil & Gas Operator | Apr 2024 |
| 829 | Kovar Operating, LLC | Victoria, TX 77901 | Oil & Gas Operator | Sep 2021 |
| 830 | Koven Production Co. | San Antonio, TX 78232 | Oil & Gas Operator | Aug 2003 |
| 831 | Koyl Oil Inc | | Oil & Gas Operator | Feb 2024 |
| 832 | Kozaczka, Loretta M. | Gowanda, NY 14070 | Gas Operator | Dec 2022 |
| 833 | KP Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 1997 |
| 834 | KPL Production Company LLC | Oklahoma City, OK 73112-4709 | Oil & Gas Operator | Feb 2017 |
| 835 | Kracken Operating LLC | Lawrence, KS 66047 | Oil Operator | Dec 2019 |
| 836 | Kraemer II LLC | | Oil & Gas Operator | Dec 2000 |
| 837 | Kraft Oil Compan | | Oil Operator | Nov 1994 |
| 838 | Kraft Oil Company LLC | Gridley, KS 66852 | Oil Operator | Dec 2023 |
| 839 | Kraft, Jim - Oil Operations | Holyrood, KS 67450 | Oil Operator | Jan 1999 |
| 840 | Kraken Development III, LLC | | Oil & Gas Operator | Nov 2021 |
| 841 | Kraken Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Feb 2024 |
| 842 | Kraker & Martin Energy, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 843 | Kraker Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 1995 |
| 844 | Krakrow, Inc. | Spencer, WV 25276-1007 | Oil & Gas Operator | Dec 2021 |
| 845 | Kram Energy | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Apr 2024 |
| 846 | Kramer Exploration Co. | Delaware, OH 43015 | Oil & Gas Operator | Dec 2009 |
| 847 | Kramer Oil Field Service Inc | Wellsville, KS 66092 | Oil Operator | May 2019 |
| 848 | Kramer Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 849 | Kramer, Clifford A. | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 1997 |
| 850 | Kramer, Frank & Ethel FLP | Graham, TX 76450 | Oil & Gas Operator | Sep 2014 |
| 851 | Kramer, Frank C. | Graham, TX 76450 | Oil & Gas Operator | Apr 2004 |
| 852 | Kranz, Thomas | East Aurora, NY 14052 | Gas Operator | Dec 2022 |
| 853 | Krause, Michael J. & Tracy A. | Orchard Park, NY 14127 | Gas Operator | Dec 2022 |
| 854 | KRB Enterprise, Inc. | | Oil Operator | Feb 2024 |
| 855 | KRC Operating, LLC | Corpus Chrsti, TX 78466 | Oil & Gas Operator | Apr 2024 |
| 856 | Krebbs A N & Kay | Pawhuska, OK 74056 | Oil Operator | Jan 2024 |
| 857 | Krebbs, David B | | Oil & Gas Operator | Jan 2024 |
| 858 | Krehbiel Oil Co. | McPherson, KS 67460 | Oil & Gas Operator | Oct 1998 |
| 859 | Krehbiel Oil Com | | Oil & Gas Operator | Mar 1995 |
| 860 | Krehbiel, Brian | Burrton, KS 67020 | Gas Operator | Dec 2023 |
| 861 | Krehbiel, Jay | | Oil Operator | Dec 2023 |
| 862 | Krejci Harry L | | Oil & Gas Operator | Nov 2023 |
| 863 | Kremco Oil LLC | Wichita Falls, TX 76308 | Oil Operator | Apr 2024 |
| 864 | Kremeier Prod & Operating | | Oil & Gas Operator | Jan 2010 |
| 865 | Krescent Energy Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2013 |
| 866 | KRF Production Company LLC | Austin, TX 78746 | Oil & Gas Operator | Apr 2024 |
| 867 | Kriebel Acquisition Co LLC | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2023 |
| 868 | Kriebel Gas Inc | | Oil & Gas Operator | Dec 1999 |
| 869 | Kriebel Minerals Inc | Clarion, PA 16214-6161 | Oil & Gas Operator | Dec 2020 |
| 870 | Kriebel Wells Dissolution Co LLC | | Oil & Gas Operator | Dec 2023 |
| 871 | Krier Kirby Oil | | Oil Operator | Dec 1996 |
| 872 | Krier Oil Oper - | | Oil Operator | Sep 1995 |
| 873 | Krier Oil Operation | | Oil Operator | Nov 2023 |
| 874 | Krier, Kirby Oil, Inc. | Claflin, KS 67525 | Oil Operator | Dec 2023 |
| 875 | Kriken Oil & Gas | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Jul 2005 |
| 876 | Kriken Oil & Gas, Inc. | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Apr 2024 |
| 877 | Krisco Oil Co. | Kermit, TX 79745 | Oil Operator | Jul 2022 |
| 878 | Krista P. Burnum | | Oil Operator | Dec 2023 |
| 879 | Kristen Oil And Gas, Inc. | Edna, TX 77957 | Oil & Gas Operator | Apr 2024 |
| 880 | Kriti Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2012 |
| 881 | Kriti Te Energy, Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 2017 |
| 882 | Krocan Energy Corporation | Bowling Green, KY 42102 | Oil & Gas Operator | Apr 2024 |
| 883 | Krog Partners, LLC | Kilgore, TX 75663 | Oil Operator | Apr 2024 |
| 884 | Krog, Peter L. & Kim R. | Orchard Park, NY 14127 | Gas Operator | Dec 2022 |
| 885 | Kroh Operating LLC | Fort Worth, TX 76114 | Oil & Gas Operator | Apr 2024 |
| 886 | Kroll Energy LLC | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2022 |
| 887 | Krot Oil Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 888 | Krotzer Oil Company | Cleveland, OK 74020-0383 | Oil & Gas Operator | Jan 2024 |
| 889 | KRS Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Apr 2020 |
| 890 | Kruckenberg & SC | | Oil & Gas Operator | Sep 1993 |
| 891 | Kruckenberg & Scott | Isabel, KS 67065 | Oil Operator | Dec 2011 |
| 892 | Krueger, A. H., Jr. | Hays, KS 67601 | Oil Operator | Jul 1993 |
| 893 | Krug, Donald H | Russell, KS 67665 | Oil Operator | Dec 2023 |
| 894 | Krumme Oil Company LLP | Bristow, OK 74010-0749 | Oil & Gas Operator | Jan 2024 |
| 895 | Krumme Wesley J | Oklahoma City, OK 73120 | Oil & Gas Operator | Jun 1997 |
| 896 | Krummrich Engineering Corporation | | Oil & Gas Operator | Dec 2023 |
| 897 | Ksabe Energy Partners, LLC | Oklahoma City, OK 73106 | Oil Operator | Apr 2024 |
| 898 | KSC Oil | | Oil Operator | Dec 2023 |
| 899 | KSM Energy Inc | Pittsburgh, PA 15238-3156 | Gas Operator | Dec 2022 |
| 900 | KST Oil & Gas Co Inc | Tallmadge, OH 44278-1142-1142 | Oil & Gas Operator | Dec 1995 |