| 5901 | Kirkpatrick Oil Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Nov 2024 |
| 5902 | Kirkpatrick, John Oil LLC | Victoria, TX 77905 | Oil & Gas Operator | Nov 2024 |
| 5903 | Kismet Properties, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Nov 2024 |
| 5904 | Kiva Resources Inc. | Houston, TX 77265 | Oil & Gas Operator | Mar 2008 |
| 5905 | KJ Energy, LLC | MT Enterprise, TX 75681 | Oil & Gas Operator | Jul 2024 |
| 5906 | Klabzuba Brothers LLC | Prague, OK 74864-0567 | Oil & Gas Operator | Jul 2007 |
| 5907 | Klabzuba Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2013 |
| 5908 | Klabzuba Royalty Company | Prague, OK 74864-0567 | Oil & Gas Operator | Dec 2019 |
| 5909 | Klaeger Operating Company II,LLC | Marble Falls, TX 78654 | Oil Operator | Nov 2024 |
| 5910 | Klaeger Operating Company, LLC | Marble Falls, TX 78654 | Oil Operator | Nov 2024 |
| 5911 | Klaeger, J. H. | Hondo, TX 78861 | Oil & Gas Operator | Dec 2009 |
| 5912 | Klassen Energy, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Nov 2024 |
| 5913 | Klause & Klaus Oil Co. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2003 |
| 5914 | Klein, J. L. | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2013 |
| 5915 | KLH Oil & Gas, Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Nov 2024 |
| 5916 | Kling, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Dec 2000 |
| 5917 | Klingberg, Roger | Cross Plains, TX 76443 | Oil & Gas Operator | Jan 2017 |
| 5918 | KLM Petroleum Corp. | Midland, TX 79705 | Oil & Gas Operator | Nov 2024 |
| 5919 | Klo Oil & Gas, L.L.C. | Tulsa, OK 74120 | Oil & Gas Operator | Jan 2023 |
| 5920 | Klock, Ted | Corsicana, TX 75110 | Oil Operator | Jul 2022 |
| 5921 | Klotzman, M. S. Exploration Co. | Victoria, TX 77903 | Oil & Gas Operator | Nov 2024 |
| 5922 | Klutts, Carlos J. | Austin, TX 78711 | Oil & Gas Operator | Apr 2002 |
| 5923 | KMK Oil & Gas, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Nov 2024 |
| 5924 | KND Oil & Gas, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2023 |
| 5925 | Kneupper Oil, LLC | MC Camey, TX 79752 | Oil & Gas Operator | Nov 2024 |
| 5926 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |
| 5927 | Knickerbocker Land Resources | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2015 |
| 5928 | Knight, Reuben B. | Windthorst, TX 76389 | Oil & Gas Operator | Nov 2024 |
| 5929 | KNK Oil & Gas | Abilene, TX 79602 | Oil & Gas Operator | Dec 1996 |
| 5930 | Knobloch, Albert | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 5931 | Knox Industries, Inc. | Arlington, TX 76012 | Oil & Gas Operator | Nov 2024 |
| 5932 | Knox, D. M., Oil Co. | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2000 |
| 5933 | Knox, H. A. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 5934 | Knox, Jack L. | Coleman, TX 76834 | Oil & Gas Operator | Nov 2024 |
| 5935 | Ko Operating | Merkel, TX 79536 | Oil & Gas Operator | Nov 2024 |
| 5936 | Ko Operating LLC | Plano, TX 75025 | Oil Operator | Nov 2024 |
| 5937 | Kocana Resources | Ranchos Taos, NM 87557 | Oil & Gas Operator | Jul 1999 |
| 5938 | Koch Exploration Company | Houston, TX 77046 | Oil & Gas Operator | Jul 2024 |
| 5939 | Koch Exploration Company, LLC | Denver, CO 80202 | Oil & Gas Operator | Jun 2019 |
| 5940 | Koch Midstream Services Company | Wichita, KS 67201 | Oil & Gas Operator | Oct 2000 |
| 5941 | Koch, P. S. | Seguin, TX 78155 | Oil & Gas Operator | May 2018 |
| 5942 | Kodiak Drilling, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2003 |
| 5943 | Kodiak Oil & Gas Inc | Muenster, TX 76252 | Oil & Gas Operator | Nov 2024 |
| 5944 | Kodiak Operating, L.L.C. | Olney, TX 76374 | Oil & Gas Operator | Nov 2024 |
| 5945 | Kodiak Petroleum Corp. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 1996 |
| 5946 | Kodiak Petroleum, Inc. | Englewood, CO 80155 | Oil & Gas Operator | Jul 2024 |
| 5947 | Kodiak Productions LTD | Big Lake, TX 76932 | Oil & Gas Operator | Mar 2014 |
| 5948 | Kody Petroleum Co., Inc. | Daisetta, TX 77533 | Oil & Gas Operator | Nov 2024 |
| 5949 | Kohler Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 1994 |
| 5950 | Kohler Industrial Nat. Gas, Inc. | Kohler, WI 53044 | Gas Operator | Dec 2000 |
| 5951 | Kojo Energy, Inc. | Odessa, TX 79760 | Oil & Gas Operator | Nov 2024 |
| 5952 | Koko Skadi, LLC | Austin, TX 78731 | Oil & Gas Operator | Nov 2024 |
| 5953 | Kokomo Energy, Inc. | Gorman, TX 76454 | Oil & Gas Operator | Nov 2024 |
| 5954 | Kokomo Oil Company | Houston, TX 77227 | Oil & Gas Operator | Apr 1998 |
| 5955 | Kolb, James | Aspermont, TX 79502 | Oil & Gas Operator | Jul 2003 |
| 5956 | Kollao Properties LLC | Midland, TX 79702 | Oil & Gas Operator | Nov 2024 |
| 5957 | Koonce Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Oct 1993 |
| 5958 | Koontz Oil Company | Nocona, TX 76255 | Oil Operator | Aug 2022 |
| 5959 | Koram Operating LLC | Houston, TX 77079 | Oil & Gas Operator | Dec 2006 |
| 5960 | Korman Exploration, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2001 |
| 5961 | Kornye-Tillman Company | Cleburne, TX 76031 | Oil & Gas Operator | Nov 2024 |
| 5962 | Kosarek, Charlie | San Antonio, TX 78213 | Oil & Gas Operator | Oct 2006 |
| 5963 | Kouatli, Aiman M. | Caldwell, TX 77836 | Oil & Gas Operator | Nov 2024 |
| 5964 | Kovar Operating, LLC | Victoria, TX 77901 | Oil & Gas Operator | Sep 2021 |
| 5965 | Koven Production Co. | San Antonio, TX 78232 | Oil & Gas Operator | Aug 2003 |
| 5966 | KP Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 1997 |
| 5967 | Kraker & Martin Energy, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 5968 | Kram Energy | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Nov 2024 |
| 5969 | Kramer Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 5970 | Kramer, Clifford A. | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 1997 |
| 5971 | Kramer, Frank & Ethel FLP | Graham, TX 76450 | Oil & Gas Operator | Sep 2014 |
| 5972 | Kramer, Frank C. | Graham, TX 76450 | Oil & Gas Operator | Apr 2004 |
| 5973 | KRC Operating, LLC | Corpus Chrsti, TX 78466 | Oil & Gas Operator | Nov 2024 |
| 5974 | Kremco Oil LLC | Wichita Falls, TX 76308 | Oil Operator | Nov 2024 |
| 5975 | Krenek Enterprises, Inc. | Lovelady, TX 75851 | Oil Operator | Nov 2024 |
| 5976 | Krescent Energy Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2013 |
| 5977 | KRF Production Company LLC | Austin, TX 78746 | Oil & Gas Operator | Nov 2024 |
| 5978 | Kriken Oil & Gas | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Jul 2005 |
| 5979 | Kriken Oil & Gas, Inc. | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Nov 2024 |
| 5980 | Kristen Oil And Gas, Inc. | Edna, TX 77957 | Oil & Gas Operator | Nov 2024 |
| 5981 | Kriti Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2012 |
| 5982 | Kriti Te Energy, Inc | Houston, TX 77079 | Oil & Gas Operator | Oct 2017 |
| 5983 | Krocan Energy Corporation | Bowling Green, KY 42102 | Oil & Gas Operator | Nov 2024 |
| 5984 | Krog Partners, LLC | Kilgore, TX 75663 | Oil Operator | Nov 2024 |
| 5985 | Kroh Operating LLC | Fort Worth, TX 76114 | Oil & Gas Operator | Nov 2024 |
| 5986 | Krot Oil Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Nov 2024 |
| 5987 | KRS Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Apr 2020 |
| 5988 | Ksabe Energy Partners, LLC | Oklahoma City, OK 73106 | Oil Operator | Nov 2024 |
| 5989 | Kstone Energy, LLC | Oklahoma City, OK 73106 | Oil Operator | Nov 2024 |
| 5990 | KT Operating Company LLC | Dallas, TX 75231 | Oil & Gas Operator | Feb 2010 |
| 5991 | KTC Oil Enterprises, LLC | Dallas, TX 75247 | Oil & Gas Operator | Nov 2024 |
| 5992 | KTP Energy, Inc. | Denver, CO 80226 | Oil & Gas Operator | Aug 2019 |
| 5993 | Kuehne Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Aug 2003 |
| 5994 | Kuhn Oil Co Inc | Timber Lake, SD 57656 | Oil Operator | Dec 2023 |
| 5995 | Kukui Operating Company | Ignacio, CO 81137 | Oil & Gas Operator | May 2013 |
| 5996 | Kunu Energy LLC | Wichita Falls, TX 76308 | Oil Operator | Nov 2024 |
| 5997 | Kuran Resources | Wichita Falls, TX 76308 | Oil Operator | Nov 2024 |
| 5998 | Kuykendall, IValene Estate | Electra, TX 76360 | Oil & Gas Operator | Dec 1998 |
| 5999 | Kuykendall, M. C. | Electra, TX 76360 | Oil & Gas Operator | Apr 1995 |
| 6000 | Kuykendall, M.C., Estate | Electra, TX 76360 | Oil & Gas Operator | Aug 2003 |