| 16001 | King Resources Co. | | Oil & Gas Operator | Dec 1977 |
| 16002 | King'S Well Service LLC | Blackwell, OK 74631 | Oil Operator | May 2025 |
| 16003 | King-Goen Oil, LLC | Abilene, TX 79602 | Oil Operator | Dec 2025 |
| 16004 | King-Sherwood Oil | Condon, MT 59826 | Oil Operator | Aug 2025 |
| 16005 | Kingdom Resources Corporation | Austin, TX 78701 | Oil & Gas Operator | Sep 1993 |
| 16006 | Kingdom Resources Inc | Frisco, TX 75033-3673 | Oil & Gas Operator | Jun 2023 |
| 16007 | Kingery Drilling Co., Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Sep 2025 |
| 16008 | Kingery, Johnny | Clyde, TX 79510 | Oil & Gas Operator | Oct 1997 |
| 16009 | Kingfish Gathering LLC | Lago VIsta, TX 78645 | Oil & Gas Operator | Dec 2025 |
| 16010 | Kingfisher CSG Pullr & Const Inc | Hennessey, OK 73742-0024 | Oil & Gas Operator | Apr 2014 |
| 16011 | Kingfisher Resources Inc | Clinton, OK 73601 | Oil & Gas Operator | Sep 2025 |
| 16012 | Kingman Operating Company, Inc. | Austin, TX 78729 | Oil Operator | Jun 2013 |
| 16013 | Kingman Petroleum Inc | Dolores, CO 81323-9503 | Oil & Gas Operator | Jun 2025 |
| 16014 | Kings Oil Company, Inc. | | Oil Operator | Jun 1989 |
| 16015 | Kings Peak Energy LLC | Denver, CO 80264 | Oil & Gas Operator | Feb 2019 |
| 16016 | Kings X Oil Company LLC | Gillette, WY 82717 | Oil Operator | Aug 2016 |
| 16017 | Kingsbury Petrol | | Oil Operator | Jul 1986 |
| 16018 | Kingsley, Craig | | Gas Operator | Dec 2024 |
| 16019 | Kingston Oil Corp | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2000 |
| 16020 | Kingston Operating Company | | Oil & Gas Operator | Oct 2009 |
| 16021 | Kingwood Energy, LLC | | Oil Operator | Feb 2025 |
| 16022 | Kingwood Exploration LLC | Shreveport, LA 71105 | Oil & Gas Operator | Dec 2025 |
| 16023 | Kingwood Oil Co; Inc | Luling, TX 78648 | Oil & Gas Operator | Nov 2015 |
| 16024 | Kingwood Resources, Inc. | Kingwood, TX 77339 | Oil & Gas Operator | May 2022 |
| 16025 | Kinlaw Oil Corporation | Dallas, TX 75380 | Oil & Gas Operator | Dec 2025 |
| 16026 | Kinney Incorporated | Andrews, TX 79714 | Oil & Gas Operator | Dec 2025 |
| 16027 | Kinney Oil Company | Denver, CO 80202 | Oil Operator | Dec 2024 |
| 16028 | Kinsey Interests | | Oil & Gas Operator | May 1991 |
| 16029 | Kinsey Interests And Marlin | | Oil Operator | Mar 1983 |
| 16030 | Kinsey Interests Et Al | | Oil Operator | Apr 1988 |
| 16031 | Kinta Public Works | Kinta, OK 74552 | Oil & Gas Operator | Mar 2011 |
| 16032 | Kintex Petroleum Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 16033 | Kinzer, J. W. | | Oil & Gas Operator | Dec 2006 |
| 16034 | Kiowa Gas Company | Dallas, TX 75206 | Oil & Gas Operator | Jun 2025 |
| 16035 | Kiowa Producers, LLC | Parsons, KS 67357 | Oil & Gas Operator | Jan 2025 |
| 16036 | Kiowa-T.N.T., Inc. | | Oil Operator | Sep 1981 |
| 16037 | Kipling Energy Incorporated | Shelby, MT 59474 | Oil & Gas Operator | Jan 2011 |
| 16038 | Kirby & Son Dozing | Lewisburg, KY 42256 | Oil Operator | Dec 2023 |
| 16039 | Kirby Exploration Co Of Texas | | Oil & Gas Operator | Nov 1993 |
| 16040 | Kirby Exploration Company | Houston, TX 77251 | Oil & Gas Operator | Jan 2014 |
| 16041 | Kirby Oil Company | | Oil Operator | Dec 2024 |
| 16042 | Kirk Billie E | Morris, OK 74445 | Oil & Gas Operator | Aug 2025 |
| 16043 | Kirk David | Midland, TX 79705 | Oil & Gas Operator | Aug 2025 |
| 16044 | Kirk Tank Trucks Inc | Morris, OK 74445 | Oil & Gas Operator | Dec 2021 |
| 16045 | Kirkconnell And Associates | | Oil & Gas Operator | Dec 1996 |
| 16046 | Kirkman W L Inco | | Oil & Gas Operator | Dec 1994 |
| 16047 | Kirkpatrick | Longton, KS 67352 | Oil Operator | Jun 2000 |
| 16048 | Kirkpatrick Oil & Gas Co. | Pampa, TX 79066 | Oil & Gas Operator | Apr 1996 |
| 16049 | Kirkpatrick Oil & Gas L.L.C. | Midland, TX 79701 | Oil & Gas Operator | Dec 2010 |
| 16050 | Kirkpatrick Oil Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Dec 2025 |
| 16051 | Kirkpatrick Properties LLC | Ellinwood, KS 67526 | Oil Operator | Jun 2025 |
| 16052 | Kirkpatrick Ronald B | | Oil & Gas Operator | Jul 2013 |
| 16053 | Kirkpatrick W E | Ponca City, OK 74604-4146 | Gas Operator | Oct 2001 |
| 16054 | Kirkpatrick, John Oil LLC | Victoria, TX 77905 | Oil & Gas Operator | Dec 2025 |
| 16055 | Kirkwood Engineering, LTD | | Oil Operator | Dec 1991 |
| 16056 | Kirkwood Oil And Gas Co. | | Oil Operator | Jan 1988 |
| 16057 | Kirkwood W C | Casper, WY 82602 | Oil & Gas Operator | May 2005 |
| 16058 | Kirrie Oil Company LLC | Oklahoma City, OK 73113-0125 | Oil & Gas Operator | Jun 2025 |
| 16059 | Kirsch, Doris R. | Strykersville, NY 14145 | Gas Operator | Dec 2024 |
| 16060 | Kirtley, Ralph | | Oil & Gas Operator | Dec 2005 |
| 16061 | Kis Oil & Gas Inc | Brookville, PA 15825-4210 | Oil & Gas Operator | Dec 2014 |
| 16062 | Kisatchie Resources, LTD. | | Gas Operator | Jul 1991 |
| 16063 | Kiska Oil & Gas Inc | Tulsa, OK 74103 | Oil Operator | Oct 2012 |
| 16064 | Kiska Oil Compan | | Oil & Gas Operator | Oct 1989 |
| 16065 | Kiska Oil Company | Tulsa, OK 74114 | Oil & Gas Operator | Jan 2019 |
| 16066 | Kismet Properties, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Dec 2025 |
| 16067 | Kiss Productions | | Oil & Gas Operator | Oct 2002 |
| 16068 | Kissack Resources. LLC | | Oil & Gas Operator | Oct 2025 |
| 16069 | Kissack Water & Oil Service Inc | Rozet, WY 82727 | Oil & Gas Operator | Oct 2025 |
| 16070 | Kissinger Petroleum Corp | | Oil & Gas Operator | Nov 1983 |
| 16071 | Kistler John & Ruth | Newcomerstown, OH 43832 | Oil & Gas Operator | Dec 1998 |
| 16072 | Kitchen, Robert (Deceased) | Osawatomie, KS 66064 | Oil Operator | Oct 2009 |
| 16073 | Kittle Oil | | Oil Operator | Apr 2025 |
| 16074 | Kiva Resources Inc. | Houston, TX 77265 | Oil & Gas Operator | Mar 2008 |
| 16075 | Kivett Kenneth W | Blackwell, OK 74631-0134 | Oil & Gas Operator | Jun 2001 |
| 16076 | Kiwanda Energy, Inc. | Denver, CO 80202 | Oil & Gas Operator | Jan 2008 |
| 16077 | Kiwanda Resc Inc | | Oil & Gas Operator | Aug 1993 |
| 16078 | Kizzar Well Servicing, Inc. | Chase, KS 67524 | Oil Operator | Jun 2025 |
| 16079 | KJ Energy, LLC | MT Enterprise, TX 75681 | Oil & Gas Operator | Jul 2024 |
| 16080 | KJ Energy, LLC Of Delaware | | Oil & Gas Operator | Nov 2016 |
| 16081 | KJB Oil Company LLC | Dewey, OK 74029-3053 | Oil Operator | Aug 2025 |
| 16082 | Kjellin, Charles Willard (Deceased) | Marion, KS 66861 | Oil & Gas Operator | Oct 2013 |
| 16083 | KJR Services LLC | Edmond, OK 73083 | Oil & Gas Operator | Jul 2025 |
| 16084 | Klabzuba Brothers LLC | Prague, OK 74864-0567 | Oil & Gas Operator | Jul 2007 |
| 16085 | Klabzuba Oil & Gas Inc | Denver, CO 80202 | Oil & Gas Operator | Aug 2012 |
| 16086 | Klabzuba Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2013 |
| 16087 | Klabzuba Royalty Company | Prague, OK 74864-0567 | Oil & Gas Operator | Dec 2019 |
| 16088 | Klaeger Operating Company II,LLC | Marble Falls, TX 78654 | Oil Operator | Dec 2025 |
| 16089 | Klaeger Operating Company, LLC | Marble Falls, TX 78654 | Oil Operator | Dec 2025 |
| 16090 | Klaeger, J. H. | Hondo, TX 78861 | Oil & Gas Operator | Dec 2009 |
| 16091 | Klassen Energy, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Dec 2025 |
| 16092 | Klause & Klaus Oil Co. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2003 |
| 16093 | KLB Operating, Inc. | Plainville, KS 67663 | Oil Operator | Aug 2001 |
| 16094 | KLBW Partners, L.L.C. | Ratliff City, OK 73481 | Oil & Gas Operator | Aug 2025 |
| 16095 | KLC Petroleum Company, LLC | Henderson, KY 42420 | Oil Operator | Dec 2021 |
| 16096 | KLD Energy | | Oil & Gas Operator | Dec 2015 |
| 16097 | Kleen Oilfield Services Co | Velma, OK 73491-0178 | Oil & Gas Operator | Aug 2025 |
| 16098 | Kleese Development Associates | Youngstown, OH 44514 | Oil & Gas Operator | Dec 2024 |
| 16099 | Klein Oil & Logging | Alma, NY 14708 | Oil & Gas Operator | Dec 2024 |
| 16100 | Klein, J. L. | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2013 |