| 5801 | Kamlok Oil & Gas, Inc. | Houston, TX 77240 | Oil & Gas Operator | Jun 1996 |
| 5802 | Kampresco Energy, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2026 |
| 5803 | Kana Resources, Inc. | Dallas, TX 75243 | Oil & Gas Operator | Aug 2003 |
| 5804 | Kansas Oil & Gas Corporation | Woodland HLS, CA 91367 | Oil & Gas Operator | Feb 2001 |
| 5805 | Kar Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Jul 2026 |
| 5806 | Karbuhn Oil Company | Tomball, TX 77375 | Oil & Gas Operator | Jul 2026 |
| 5807 | Karenco Energy, Incorporated | Seguin, TX 78155 | Oil & Gas Operator | Oct 1997 |
| 5808 | Karico GP, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2026 |
| 5809 | Karis Resources, LLC | Tyler, TX 75707 | Oil & Gas Operator | Feb 2019 |
| 5810 | Karper Company, The | Graham, TX 76450 | Oil & Gas Operator | Feb 2003 |
| 5811 | Karper Oil & Gas Corporation | Graham, TX 76450 | Oil & Gas Operator | Jul 2026 |
| 5812 | Karst Incorporated | Fort Worth, TX 76116 | Oil Operator | Jul 2026 |
| 5813 | Kas Productions | La Veta, CO 81055 | Oil Operator | Mar 2008 |
| 5814 | Kasan Corp. | Pharr, TX 78577 | Oil & Gas Operator | Sep 1995 |
| 5815 | Kasle Energy Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Mar 2017 |
| 5816 | Kastman Oil Company | Lubbock, TX 79408 | Oil & Gas Operator | Nov 2012 |
| 5817 | Kastman Oil Company, LLC | Lubbock, TX 79408 | Oil Operator | Jul 2026 |
| 5818 | Kat Energy Corporation | Amarillo, TX 79105 | Gas Operator | Sep 2001 |
| 5819 | Kat Energy, LTD. | Amarillo, TX 79120 | Gas Operator | Jun 2020 |
| 5820 | Kathler Oil Interests | Frisco, TX 75034 | Oil & Gas Operator | Jul 2026 |
| 5821 | Kato Operating Company | Bristow, OK 74010 | Oil & Gas Operator | Mar 2015 |
| 5822 | Katsco Energy, Inc. | Round Rock, TX 78664 | Oil & Gas Operator | Jul 2026 |
| 5823 | Katy Resources Etx, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2011 |
| 5824 | Katy Resources LLC | Arlington, TX 76003 | Oil & Gas Operator | Jul 2026 |
| 5825 | Katz Oil Co. | San Antonio, TX 78218 | Oil & Gas Operator | Dec 2002 |
| 5826 | Kaye Poth Oil Corp. | Seguin, TX 78155 | Oil & Gas Operator | May 1998 |
| 5827 | Kayuga Co. | Tulsa, OK 74133 | Oil & Gas Operator | Jul 2026 |
| 5828 | KC Resources Inc | Snowmass VLG., CO 81615 | Oil & Gas Operator | Apr 2026 |
| 5829 | KCM Management, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Oct 2014 |
| 5830 | KCR Energy, L.L.C. | Fate, TX 75132 | Oil Operator | Jul 2026 |
| 5831 | KCS Medallion Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2018 |
| 5832 | KCS Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2009 |
| 5833 | KCS Resources, LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2017 |
| 5834 | KD Energy, LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2026 |
| 5835 | KDM Operating, LLC | The Woodlands, TX 77380 | Oil Operator | Jul 2026 |
| 5836 | KDM Production Co | Ozona, TX 76943 | Oil & Gas Operator | Jul 2026 |
| 5837 | Keahey Exploration, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2002 |
| 5838 | Keating Energy, Inc. | FT Washington, PA 19034 | Oil & Gas Operator | Jul 2026 |
| 5839 | Kebo Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Jul 2026 |
| 5840 | Kec Enterprises, Inc. | Springtown, TX 76082 | Oil & Gas Operator | Jul 2026 |
| 5841 | Keeley Oil, L.L.C. | Dallas, TX 75219 | Oil Operator | Jul 2026 |
| 5842 | Keen Operating Company, Inc. | Austin, TX 78705 | Oil & Gas Operator | Aug 2001 |
| 5843 | Keene, Roy J. Jr. | Sugar Land, TX 77498 | Oil & Gas Operator | Jun 2016 |
| 5844 | Keft Oil Company | Pleasanton, TX 78064 | Oil & Gas Operator | Feb 2003 |
| 5845 | Keirus, Inc. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jul 2026 |
| 5846 | Keisling Energy, LLC | Dumas, TX 79029 | Gas Operator | Jul 2026 |
| 5847 | Keisling, H. N. | Pampa, TX 79065 | Oil & Gas Operator | Aug 2015 |
| 5848 | Keith F Walker Oil & Gas Company LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | May 2026 |
| 5849 | Keith Petroleum Corporation | Houston, TX 77063 | Oil & Gas Operator | Jan 1993 |
| 5850 | Kek Exploration LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 5851 | Kellco Energy, LTD. | Houston, TX 77057 | Oil & Gas Operator | Nov 2007 |
| 5852 | Kellerville Operating, LLC | Pampa, TX 79065 | Oil & Gas Operator | Jul 2026 |
| 5853 | Kelley Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Jan 2002 |
| 5854 | Kelly Mahler Operating, LLC | Graham, TX 76450 | Oil Operator | Jul 2026 |
| 5855 | Kelly Resources, LTD. | Frisco, TX 75034 | Oil & Gas Operator | Aug 2004 |
| 5856 | Kelpetro, Inc. | Houston, TX 77056 | Oil & Gas Operator | Mar 2012 |
| 5857 | Kelsey Operating, Inc. | Houston, TX 77077 | Oil Operator | Feb 2022 |
| 5858 | Kelso Oil LLC | Chase, KS 67524 | Oil & Gas Operator | Apr 2007 |
| 5859 | Kelt Oil & Gas, Inc. | Torrance, CA 90503 | Oil & Gas Operator | Dec 2003 |
| 5860 | Kelton Oil & Gas Co | Wheeler, TX 79096 | Oil Operator | Jun 1991 |
| 5861 | Kelton, B.J. | Rosharon, TX 77583 | Oil & Gas Operator | Jul 2026 |
| 5862 | Kem Energy, Inc. | Katy, TX 77450 | Oil & Gas Operator | Jul 2026 |
| 5863 | Kemco Oil | Alice, TX 78332 | Oil & Gas Operator | Aug 2009 |
| 5864 | Kemp, Walter | Talpa, TX 76882 | Gas Operator | Jul 2026 |
| 5865 | Kemper Operating Co. | Abilene, TX 79605 | Oil & Gas Operator | Nov 2015 |
| 5866 | Ken Petroleum Corporation | Dallas, TX 75206 | Oil & Gas Operator | Feb 2019 |
| 5867 | Ken-Cas Oil Co. | Levelland, TX 79336 | Oil & Gas Operator | Apr 1998 |
| 5868 | Kendrick Oil And Gas Company | Abilene, TX 79608 | Oil & Gas Operator | Jul 2026 |
| 5869 | Kendrick Oil Co. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2008 |
| 5870 | Kendrick, Barbara S. | Baytown, TX 77521 | Oil Operator | Jul 2026 |
| 5871 | Kendrick, Paul W. | Baytown, TX 77520 | Oil & Gas Operator | Sep 2005 |
| 5872 | Kenne Exploration, Inc. | Missouri City, TX 77489 | Oil & Gas Operator | Jul 2026 |
| 5873 | Kennedy & Mitchell, Inc. | Houston, TX 77084 | Oil & Gas Operator | Aug 2013 |
| 5874 | Kennedy, Joseph D. | Stephenville, TX 76401 | Oil & Gas Operator | Jun 1995 |
| 5875 | Kennedy, R. R. Production, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | Jul 2026 |
| 5876 | Kennemer, Darrell | Boyd, TX 76023 | Oil Operator | Jul 2026 |
| 5877 | Kenneth W Cory LTD | Bellaire, TX 77401 | Oil & Gas Operator | May 2026 |
| 5878 | Kent, Charles Operating Co. Inc. | Powell, TX 75153 | Oil & Gas Operator | Dec 2007 |
| 5879 | Kenworthy Oil Company | Midland, TX 79710 | Oil & Gas Operator | Jul 2026 |
| 5880 | Kenworthy Operating Company | Tulsa, OK 74132 | Oil & Gas Operator | May 2009 |
| 5881 | Kepa Energy, L.C. | Marshall, TX 75670 | Oil & Gas Operator | Mar 1998 |
| 5882 | Kepco Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2026 |
| 5883 | Kepco. Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 5884 | Kern Co. | Houston, TX 77095 | Oil & Gas Operator | Jan 2021 |
| 5885 | Kerns O & G, Inc. | San Antonio, TX 78232 | Oil & Gas Operator | Dec 2004 |
| 5886 | Kerns Petroleum, Inc. | San Antonio, TX 78257 | Oil & Gas Operator | Sep 2013 |
| 5887 | Kerogen Texas Energy Op LLC | Houston, TX 77060 | Oil & Gas Operator | Feb 2018 |
| 5888 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Feb 2026 |
| 5889 | Kerr-McGee Oil & Gas Corp. | Houston, TX 77251 | Oil & Gas Operator | Sep 2006 |
| 5890 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 5891 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Jul 2026 |
| 5892 | Kerr-McGee Rocky Mountain Corp | Denver, CO 80202 | Oil & Gas Operator | Jan 2007 |
| 5893 | Kerry Oil & Gas, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jan 2004 |
| 5894 | Kerry Petroleum Co Inc | Midland, TX 79708 | Oil & Gas Operator | Jun 2010 |
| 5895 | Kestrel Resources, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Sep 2015 |
| 5896 | Kewanee Oil Company | Houston, TX 77001 | Oil & Gas Operator | Aug 1978 |
| 5897 | Key Energy Of Colorado, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2016 |
| 5898 | Key Energy Services, LLC | Houston, TX 77042 | Oil Operator | Jan 2025 |
| 5899 | Key Operating & Equipment, Inc. | Midlothian, TX 76065 | Oil & Gas Operator | Nov 2024 |
| 5900 | Key Petroleum Inc. | Houston, TX 77056 | Oil & Gas Operator | Aug 2003 |