| 5801 | K A Ware Production Co., LLC | Pratt, KS 67124 | Oil Operator | Mar 2025 |
| 5802 | K And R Oil Company | Stanton, TX 79782 | Oil & Gas Operator | Aug 2003 |
| 5803 | K And R Operating | Kingsbury, TX 78638 | Oil & Gas Operator | Mar 2025 |
| 5804 | K Cubed Resources, L.L.C. | Burleson, TX 76028 | Oil & Gas Operator | Mar 2025 |
| 5805 | K M X Corporation Inc. | Pampa, TX 79066 | Oil & Gas Operator | Dec 2001 |
| 5806 | K Me Company, LLC | Kilgore, TX 75663 | Oil Operator | Mar 2025 |
| 5807 | K Oil Company | Houston, TX 77005 | Oil & Gas Operator | Mar 2025 |
| 5808 | K R Well Technology, LLC | Dimmitt, TX 79027 | Oil Operator | Mar 2025 |
| 5809 | K&C Pump Truck, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2018 |
| 5810 | K&M Resources LLC | Artesia, NM 88211 | Oil & Gas Operator | Jan 2025 |
| 5811 | K-B Exploration Co. | Houston, TX 77057 | Oil & Gas Operator | Mar 2025 |
| 5812 | K-B Oil Company | Dallas, TX 75243 | Oil & Gas Operator | Dec 2020 |
| 5813 | K-B Oil Company, LLC | Dallas, TX 75243 | Oil & Gas Operator | Mar 2025 |
| 5814 | K-Bar Oil LLC | McPherson, KS 67460 | Oil Operator | Nov 2024 |
| 5815 | K-C Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Jan 2013 |
| 5816 | K-D Operations | N Richlnd HLS, TX 76182 | Oil Operator | Mar 2025 |
| 5817 | K-M Oil Company, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Mar 2025 |
| 5818 | K. D. Operating LLC. | Wichita Falls, TX 76308 | Oil Operator | Mar 2025 |
| 5819 | K. F. Operating Company | Burkburnett, TX 76354 | Oil & Gas Operator | Mar 2008 |
| 5820 | K. O. C. Corporation | Sherman, TX 75091 | Oil & Gas Operator | Mar 2025 |
| 5821 | K. Stewart Petroleum Corporation | Oklahoma City, OK 73103 | Oil & Gas Operator | Jun 2001 |
| 5822 | K.A. Barnes Oil & Gas Oper, LLC | Somerset, TX 78069 | Oil Operator | Mar 2025 |
| 5823 | K.M.A. Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 5824 | K.W.A., Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2025 |
| 5825 | K2 Petroleum, Inc. | San Antonio, TX 78239 | Oil & Gas Operator | Mar 2025 |
| 5826 | K3 Productions LLC | Houston, TX 77269 | Oil & Gas Operator | Mar 2025 |
| 5827 | Ka Energy Op Co. LLC | Oakland, CA 94605 | Oil & Gas Operator | Oct 2021 |
| 5828 | Kabco Oil & Gas Company | Longview, TX 75604 | Oil & Gas Operator | Jun 2018 |
| 5829 | Kachina Oil & Gas Inc. | Austin, TX 78766 | Oil & Gas Operator | Jul 2002 |
| 5830 | Kadane Corporation | Dallas, TX 75205 | Oil & Gas Operator | Mar 2025 |
| 5831 | Kadane Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 1998 |
| 5832 | Kahlenberg Oil And Gas LLC | Conroe, TX 77304 | Oil Operator | Mar 2025 |
| 5833 | Kaico Petroleum, L.L.C. | Argyle, TX 76226 | Oil Operator | Oct 2018 |
| 5834 | Kain Petroleum Company | Pearsall, TX 78061 | Gas Operator | May 2011 |
| 5835 | Kain Petroleum, LLC | Pearsall, TX 78061 | Oil & Gas Operator | Mar 2025 |
| 5836 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Mar 2025 |
| 5837 | Kala Oil Company | Sundown, TX 79372 | Oil & Gas Operator | Mar 2025 |
| 5838 | Kalda Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 1994 |
| 5839 | Kaler Energy Corp. | Boerne, TX 78006 | Oil & Gas Operator | Mar 2025 |
| 5840 | Kaler Oil Company | Gainesville, TX 76240 | Oil & Gas Operator | Dec 2023 |
| 5841 | Kallina, Carlton J. | Houston, TX 77269 | Gas Operator | Mar 2025 |
| 5842 | Kalos Corporation | Tyler, TX 75701 | Oil & Gas Operator | Mar 2025 |
| 5843 | Kamlok Oil & Gas, Inc. | Houston, TX 77240 | Oil & Gas Operator | Jun 1996 |
| 5844 | Kampresco Energy, LLC | Iowa Park, TX 76367 | Oil & Gas Operator | Mar 2025 |
| 5845 | Kana Resources, Inc. | Dallas, TX 75243 | Oil & Gas Operator | Aug 2003 |
| 5846 | Kanon Oil LLC | Cameron, TX 76520 | Oil Operator | Jun 2024 |
| 5847 | Kansas Oil & Gas Corporation | Woodland HLS, CA 91367 | Oil & Gas Operator | Feb 2001 |
| 5848 | Kar Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Mar 2025 |
| 5849 | Karbuhn Oil Company | Tomball, TX 77375 | Oil & Gas Operator | Mar 2025 |
| 5850 | Karenco Energy, Incorporated | Seguin, TX 78155 | Oil & Gas Operator | Oct 1997 |
| 5851 | Karico GP, LLC | Midland, TX 79705 | Oil & Gas Operator | Mar 2025 |
| 5852 | Karis Resources, LLC | Tyler, TX 75707 | Oil & Gas Operator | Feb 2019 |
| 5853 | Karper Company, The | Graham, TX 76450 | Oil & Gas Operator | Feb 2003 |
| 5854 | Karper Oil & Gas Corporation | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 5855 | Karst Incorporated | Fort Worth, TX 76116 | Oil Operator | Mar 2025 |
| 5856 | Kas Productions | La Veta, CO 81055 | Oil Operator | Mar 2008 |
| 5857 | Kasan Corp. | Pharr, TX 78577 | Oil & Gas Operator | Sep 1995 |
| 5858 | Kasle Energy Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Mar 2017 |
| 5859 | Kastman Oil Company | Lubbock, TX 79408 | Oil & Gas Operator | Nov 2012 |
| 5860 | Kastman Oil Company, LLC | Lubbock, TX 79408 | Oil Operator | Mar 2025 |
| 5861 | Kat Energy Corporation | Amarillo, TX 79105 | Gas Operator | Sep 2001 |
| 5862 | Kat Energy, LTD. | Amarillo, TX 79120 | Gas Operator | Jun 2020 |
| 5863 | Kathler Oil Interests | Frisco, TX 75034 | Oil & Gas Operator | Mar 2025 |
| 5864 | Kato Operating Company | Bristow, OK 74010 | Oil & Gas Operator | Mar 2015 |
| 5865 | Katrina Energy LLC | Covington, LA 70433-2815 | Oil Operator | Dec 2019 |
| 5866 | Katsco Energy, Inc. | Round Rock, TX 78664 | Oil & Gas Operator | Mar 2025 |
| 5867 | Katy Resources Etx, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2011 |
| 5868 | Katy Resources LLC | Arlington, TX 76016 | Oil & Gas Operator | Mar 2025 |
| 5869 | Katz Oil Co. | San Antonio, TX 78218 | Oil & Gas Operator | Dec 2002 |
| 5870 | Kaye Poth Oil Corp. | Seguin, TX 78155 | Oil & Gas Operator | May 1998 |
| 5871 | Kayuga Co. | Tulsa, OK 74133 | Oil & Gas Operator | Mar 2025 |
| 5872 | KC Resources Inc | Snowmass VLG., CO 81615 | Oil & Gas Operator | Dec 2024 |
| 5873 | KCM Management, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Oct 2014 |
| 5874 | KCR Energy, L.L.C. | Fate, TX 75132 | Oil Operator | Mar 2025 |
| 5875 | KCS Medallion Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2018 |
| 5876 | KCS Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2009 |
| 5877 | KCS Resources, LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2017 |
| 5878 | KD Energy, LLC | Houston, TX 77056 | Oil & Gas Operator | Mar 2025 |
| 5879 | KDM Operating, LLC | The Woodlands, TX 77380 | Oil Operator | Mar 2025 |
| 5880 | KDM Production Co | Ozona, TX 76943 | Oil & Gas Operator | Mar 2025 |
| 5881 | Keahey Exploration, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2002 |
| 5882 | Keating Energy, Inc. | Ambler, PA 19002 | Oil & Gas Operator | Mar 2025 |
| 5883 | Kebo Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Mar 2025 |
| 5884 | Kec Enterprises, Inc. | Springtown, TX 76082 | Oil & Gas Operator | Mar 2025 |
| 5885 | Keeley Oil, L.L.C. | Dallas, TX 75225 | Oil Operator | Mar 2025 |
| 5886 | Keen Operating Company, Inc. | Austin, TX 78705 | Oil & Gas Operator | Aug 2001 |
| 5887 | Keene, Roy J. Jr. | Sugar Land, TX 77498 | Oil & Gas Operator | Jun 2016 |
| 5888 | Keft Oil Company | Pleasanton, TX 78064 | Oil & Gas Operator | Feb 2003 |
| 5889 | Keirus, Inc. | Wichita Falls, TX 76310 | Oil & Gas Operator | Mar 2025 |
| 5890 | Keisling, H. N. | Pampa, TX 79065 | Oil & Gas Operator | Aug 2015 |
| 5891 | Keith F. Walker Oil & Gas Co., LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Jan 2025 |
| 5892 | Keith Petroleum Corporation | Houston, TX 77063 | Oil & Gas Operator | Jan 1993 |
| 5893 | Kellco Energy, LTD. | Houston, TX 77057 | Oil & Gas Operator | Nov 2007 |
| 5894 | Kellerville Operating, LLC | Pampa, TX 79065 | Oil & Gas Operator | Mar 2025 |
| 5895 | Kelley Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Jan 2002 |
| 5896 | Kelly Mahler Operating, LLC | Graham, TX 76450 | Oil Operator | Mar 2025 |
| 5897 | Kelly Resources, LTD. | Frisco, TX 75034 | Oil & Gas Operator | Aug 2004 |
| 5898 | Kelpetro, Inc. | Houston, TX 77056 | Oil & Gas Operator | Mar 2012 |
| 5899 | Kelsey Operating, Inc. | Houston, TX 77077 | Oil Operator | Feb 2022 |
| 5900 | Kelso Oil LLC | Chase, KS 67524 | Oil & Gas Operator | Apr 2007 |