| 5901 | Key Production Company, Inc. | Longview, TX 75606 | Oil & Gas Operator | Apr 2026 |
| 5902 | Key, J. J. | Lubbock, TX 79416 | Oil & Gas Operator | Jul 2026 |
| 5903 | Keystone Energy LLC | Farmington, NM 87499 | Oil & Gas Operator | May 2026 |
| 5904 | Keystone Energy Oil & Gas Inc | Pittsburgh, PA 15222 | Oil & Gas Operator | Dec 2016 |
| 5905 | Keystone Exploration, Inc | College Sta, TX 77845 | Oil & Gas Operator | Jul 2026 |
| 5906 | Keystone Operating Co. | Round Rock, TX 78681 | Oil & Gas Operator | Jul 2026 |
| 5907 | Keystone Petroleum GP LLC | Irving, TX 75039 | Oil & Gas Operator | May 2012 |
| 5908 | Keystone Petroleum NM LLC | Irving, TX 75039 | Oil & Gas Operator | Jan 2016 |
| 5909 | Keyway Oil & Gas Operating LLC | Kilgore, TX 75663 | Oil Operator | Oct 2020 |
| 5910 | Kga Oil Company, Inc. | High Island, TX 77623 | Oil & Gas Operator | Aug 2004 |
| 5911 | Kiamichi Oil & Gas | Whitehouse, TX 75791 | Oil Operator | Oct 1997 |
| 5912 | Kiawah Resources, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2017 |
| 5913 | Kibbe, Anna S. | Falfurrias, TX 78355 | Oil & Gas Operator | Sep 1998 |
| 5914 | Kidd Johnson Oil & Gas | San Angelo, TX 76904 | Oil & Gas Operator | Feb 2013 |
| 5915 | Kidd Johnson Oil & Gas, LLC | San Angelo, TX 76904 | Oil & Gas Operator | Jul 2026 |
| 5916 | Kidd Oil & Gas, LC | Dallas, TX 75219 | Oil & Gas Operator | Apr 1999 |
| 5917 | Kidd Production Co. | Luling, TX 78648 | Oil & Gas Operator | Jul 2026 |
| 5918 | Kids Future, L.L.C. | Bivins, TX 75555 | Oil Operator | Jul 2026 |
| 5919 | Kile Production | Cypress, TX 77410 | Oil & Gas Operator | Aug 2014 |
| 5920 | Killam Oil Co., LTD. | Laredo, TX 78042 | Oil & Gas Operator | Jul 2026 |
| 5921 | Killam Oil Company | Laredo, TX 78042 | Oil & Gas Operator | Mar 1994 |
| 5922 | Killer Rabbit Fields LLC | Monahans, TX 79756 | Oil & Gas Operator | Jul 2026 |
| 5923 | Killingsworth Oil Co. | Longview, TX 75606 | Oil & Gas Operator | Jul 2026 |
| 5924 | Killingsworth, Lee Operator | Longview, TX 75601 | Oil & Gas Operator | Jan 1999 |
| 5925 | Killion Well Service Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2014 |
| 5926 | Kilmarnock Oil Company, Inc. | Corsicana, TX 75110 | Oil & Gas Operator | Jul 2026 |
| 5927 | Kilpatrick Production Company | Tye, TX 79563 | Oil & Gas Operator | Jul 2026 |
| 5928 | Kimball Production Co. | Houston, TX 77042 | Oil & Gas Operator | Jul 2002 |
| 5929 | Kimbell Oil Company Of Texas | Fort Worth, TX 76102 | Oil & Gas Operator | May 2026 |
| 5930 | Kimbell Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2026 |
| 5931 | Kimberlin & Huitt | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 1998 |
| 5932 | Kimberlin & Miller | Dallas, TX 75230 | Oil & Gas Operator | Jul 2026 |
| 5933 | Kimberlin Energy Group | Dallas, TX 75235 | Oil & Gas Operator | Jul 2026 |
| 5934 | Kimble Oil Company, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2006 |
| 5935 | Kimbrel Oil Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Jul 2026 |
| 5936 | Kimbrough Engineering Co, LLC | New Braunfels, TX 78132 | Oil & Gas Operator | Dec 2014 |
| 5937 | Kimbrough Oil Company | Iraan, TX 79744 | Oil Operator | Jul 2026 |
| 5938 | Kimbrough, D. E. | Iraan, TX 79744 | Oil & Gas Operator | Jul 2026 |
| 5939 | Kimlar Oil Company | Kermit, TX 79745 | Oil & Gas Operator | Jul 2026 |
| 5940 | Kimleco Petroleum, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 2026 |
| 5941 | Kimmeridge Texas Gas, LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2025 |
| 5942 | Kimsey, Roy E., Jr. | Midland, TX 79701 | Oil & Gas Operator | May 2018 |
| 5943 | Kincaid Etal, Inc. | Holliday, TX 76366 | Oil Operator | Jul 2026 |
| 5944 | Kincaid, Joey | Holliday, TX 76366 | Oil & Gas Operator | Mar 2005 |
| 5945 | Kindee Oil & Gas Texas, LLC | Houston, TX 77084 | Oil & Gas Operator | Apr 2016 |
| 5946 | Kinder & Petty | Graham, TX 76450 | Oil & Gas Operator | Jul 2026 |
| 5947 | Kinder Morgan Co2 Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | May 2026 |
| 5948 | Kinder Morgan Production Co LLC | Midland, TX 79705 | Oil & Gas Operator | Jul 2026 |
| 5949 | Kinder Morgan Production Co LP | Midland, TX 79701 | Oil & Gas Operator | Jul 2007 |
| 5950 | Kinder Morgan Sacroc LP | Snyder, TX 79549 | Oil & Gas Operator | Dec 2003 |
| 5951 | Kinder Morgan Tejas Pipeline LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2026 |
| 5952 | Kindred Petroleum Company | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 5953 | King & West | Wichita Falls, TX 76307 | Oil & Gas Operator | May 1994 |
| 5954 | King Energy Resources | Kerrville, TX 78029 | Oil & Gas Operator | Jul 2026 |
| 5955 | King Oil & Gas Co. | Cisco, TX 76437 | Oil & Gas Operator | Jul 2026 |
| 5956 | King Oil & Resources Co | Midland, TX 79705 | Oil & Gas Operator | Jul 2026 |
| 5957 | King Operating Corporation | Fort Worth, TX 76147 | Oil & Gas Operator | Jul 2026 |
| 5958 | King Ranch Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Nov 1999 |
| 5959 | King Ranch Oil & Gas, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 1997 |
| 5960 | King-Goen Oil, LLC | Abilene, TX 79602 | Oil Operator | Jul 2026 |
| 5961 | Kingdom Resources Corporation | Austin, TX 78701 | Oil & Gas Operator | Sep 1993 |
| 5962 | Kingery Drilling Co., Inc. | Ardmore, OK 73402 | Oil & Gas Operator | May 2026 |
| 5963 | Kingery, Johnny | Clyde, TX 79510 | Oil & Gas Operator | Oct 1997 |
| 5964 | Kingfish Gathering LLC | Lago VIsta, TX 78645 | Oil & Gas Operator | Jul 2026 |
| 5965 | Kingman Operating Company, Inc. | Austin, TX 78729 | Oil Operator | Jun 2013 |
| 5966 | Kingwood Exploration LLC | Shreveport, LA 71105 | Oil & Gas Operator | Jul 2026 |
| 5967 | Kingwood Oil Co; Inc | Luling, TX 78648 | Oil & Gas Operator | Nov 2015 |
| 5968 | Kingwood Resources | Luling, TX 78648 | Oil & Gas Operator | Feb 2002 |
| 5969 | Kingwood Resources, Inc. | Kingwood, TX 77339 | Oil & Gas Operator | May 2022 |
| 5970 | Kinlaw Oil Corporation | Dallas, TX 75380 | Oil & Gas Operator | Jul 2026 |
| 5971 | Kinney Incorporated | Andrews, TX 79714 | Oil & Gas Operator | Jul 2026 |
| 5972 | Kintex Petroleum Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2026 |
| 5973 | Kirkpatrick Oil & Gas Co. | Pampa, TX 79066 | Oil & Gas Operator | Apr 1996 |
| 5974 | Kirkpatrick Oil & Gas L.L.C. | Midland, TX 79701 | Oil & Gas Operator | Dec 2010 |
| 5975 | Kirkpatrick Oil Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Jul 2026 |
| 5976 | Kirkpatrick, John Oil LLC | Victoria, TX 77905 | Oil & Gas Operator | Jul 2026 |
| 5977 | Kismet Properties, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Jul 2026 |
| 5978 | Kiva Resources Inc. | Houston, TX 77265 | Oil & Gas Operator | Mar 2008 |
| 5979 | KJ Energy, LLC | MT Enterprise, TX 75681 | Oil & Gas Operator | Jul 2024 |
| 5980 | Klabzuba Brothers LLC | Prague, OK 74864-0567 | Oil & Gas Operator | Jul 2007 |
| 5981 | Klabzuba Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2013 |
| 5982 | Klabzuba Royalty Company | Prague, OK 74864-0567 | Oil & Gas Operator | Dec 2019 |
| 5983 | Klaeger Operating Company II,LLC | Horseshoe Bay, TX 78657 | Oil Operator | Jul 2026 |
| 5984 | Klaeger Operating Company, LLC | Horseshoe Bay, TX 78657 | Oil Operator | Jul 2026 |
| 5985 | Klaeger, J. H. | Hondo, TX 78861 | Oil & Gas Operator | Dec 2009 |
| 5986 | Klassen Energy, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Jul 2026 |
| 5987 | Klause & Klaus Oil Co. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2003 |
| 5988 | Klein, J. L. | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2013 |
| 5989 | KLH Oil & Gas, Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Jul 2026 |
| 5990 | Kling, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Dec 2000 |
| 5991 | Klingberg, Roger | Cross Plains, TX 76443 | Oil & Gas Operator | Jan 2017 |
| 5992 | KLM Petroleum Corp. | Midland, TX 79705 | Oil & Gas Operator | Jul 2026 |
| 5993 | Klo Oil & Gas, L.L.C. | Tulsa, OK 74120 | Oil & Gas Operator | Jan 2023 |
| 5994 | Klock, Ted | Corsicana, TX 75110 | Oil Operator | Jul 2022 |
| 5995 | Klotzman, M. S. Exploration Co. | Victoria, TX 77903 | Oil & Gas Operator | Jul 2026 |
| 5996 | Klutts, Carlos J. | Austin, TX 78711 | Oil & Gas Operator | Apr 2002 |
| 5997 | KMK Oil & Gas, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Jul 2026 |
| 5998 | KND Oil & Gas, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2023 |
| 5999 | Kneupper Oil, LLC | MC Camey, TX 79752 | Oil & Gas Operator | Jul 2026 |
| 6000 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |