| 16001 | Klinger Energy Inc | Ponca City, OK 74601-7812 | Oil & Gas Operator | Oct 2019 |
| 16002 | Klinger Shirley | Ponca City, OK 74601-7812 | Oil & Gas Operator | Dec 2025 |
| 16003 | Klingler Automatic Industries Inc | | Oil & Gas Operator | Dec 2025 |
| 16004 | Klippel, B.W., Jr. | Wichita, KS 67220 | Oil Operator | May 1999 |
| 16005 | KLJ Inc | Graysville, OH 45734 | Oil & Gas Operator | Dec 2002 |
| 16006 | KLM Exploration Company, Inc. | McLouth, KS 66054 | Oil Operator | Dec 2019 |
| 16007 | KLM Oil & Gas Company | Tonganoxie, KS 66086 | Oil & Gas Operator | Apr 2014 |
| 16008 | KLM Oil Operations, Inc. | El Dorado, KS 67042 | Oil Operator | Apr 1998 |
| 16009 | KLM Operating | | Oil & Gas Operator | Mar 2025 |
| 16010 | KLM Petroleum Corp. | Midland, TX 79705 | Oil & Gas Operator | Mar 2026 |
| 16011 | KLMKH Inc | Charlotte, NC 28270 | Oil Operator | Sep 2025 |
| 16012 | Klo LLC | Tulsa, OK 74120-2428 | Oil & Gas Operator | Jan 2026 |
| 16013 | Klo Oil & Gas, L.L.C. | Tulsa, OK 74120 | Oil & Gas Operator | Jan 2023 |
| 16014 | Kloberdanz Paul | | Gas Operator | Apr 1991 |
| 16015 | Kloberdanz Paul E | Oklahoma City, OK 73157 | Oil & Gas Operator | Aug 2021 |
| 16016 | Klock, Ted | Corsicana, TX 75110 | Oil Operator | Jul 2022 |
| 16017 | Klondike Investments, Inc. | Paola, KS 66071 | Oil Operator | Sep 2011 |
| 16018 | Klotzman, M. S. Exploration Co. | Victoria, TX 77903 | Oil & Gas Operator | Mar 2026 |
| 16019 | Klug, E A & A J (Estate) | Proctor, WV 26055-0000 | Oil & Gas Operator | Dec 2021 |
| 16020 | Klutts, Carlos J. | Austin, TX 78711 | Oil & Gas Operator | Apr 2002 |
| 16021 | KMD Operating Company LLC | | Oil & Gas Operator | Dec 2015 |
| 16022 | Kmfad Oil And Gas LLC | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2023 |
| 16023 | Kmi Continental Off. Prod. Co. | | Oil & Gas Operator | Jan 1988 |
| 16024 | KMK Oil & Gas, Inc. | Marshall, TX 75671 | Oil & Gas Operator | Mar 2026 |
| 16025 | KMP Operating Inc. | | Oil Operator | Dec 2025 |
| 16026 | KMV Consulting Inc | Winston Salem, NC 27101-2561 | Gas Operator | Dec 2012 |
| 16027 | KN Production Company | Lakewood, CO 80228 | Oil & Gas Operator | Jun 2003 |
| 16028 | Knaup, Harry J. & Lucille | Shelby, MT 59474 | Oil Operator | Oct 2023 |
| 16029 | KND Oil & Gas, LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2023 |
| 16030 | Kneer, Donna | Portland, NY 14769 | Gas Operator | Dec 2024 |
| 16031 | Kneupper Oil, LLC | MC Camey, TX 79752 | Oil & Gas Operator | Mar 2026 |
| 16032 | KNG Producers | Dumas, TX 79029 | Oil & Gas Operator | Oct 2009 |
| 16033 | Knickerbocker Land Resources | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2015 |
| 16034 | Knife Oil Company Inc | Cushing, OK 74023-1347 | Oil & Gas Operator | Aug 2000 |
| 16035 | Knife River Oil, LLC | Bull Shoals, AR 72619 | Oil Operator | Feb 2017 |
| 16036 | Knight Casing Pulling Company | | Oil Operator | Jun 1989 |
| 16037 | Knight Energy Inc | Tulsa, OK 74104 | Oil Operator | Jan 2026 |
| 16038 | Knight Exploration, Inc. | | Oil & Gas Operator | Sep 1989 |
| 16039 | Knight Oil Company | Victoria, KS 67671 | Gas Operator | Sep 2025 |
| 16040 | Knight Resources LLC | | Oil & Gas Operator | Dec 2013 |
| 16041 | Knight Resources, Inc. | | Oil & Gas Operator | Dec 2011 |
| 16042 | Knight, Joeann | Kilgore, TX 75662 | Oil Operator | Sep 1989 |
| 16043 | Knight, Michael L. | Ripley, NY 14775 | Gas Operator | Dec 2024 |
| 16044 | Knight, Reuben B. | Windthorst, TX 76389 | Oil & Gas Operator | Mar 2026 |
| 16045 | Knight, Wilbur H. Et Al | | Oil & Gas Operator | Jul 1991 |
| 16046 | Knighton Oil Com | | Oil & Gas Operator | Nov 1996 |
| 16047 | Knighton Oil Company, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Sep 2025 |
| 16048 | Knightsbridge Petroleum Corp. | | Oil Operator | Jul 1991 |
| 16049 | KNK Oil & Gas | Abilene, TX 79602 | Oil & Gas Operator | Dec 1996 |
| 16050 | Knobler, Alfred E | | Oil & Gas Operator | Dec 2003 |
| 16051 | Knobloch, Albert | Graham, TX 76450 | Oil & Gas Operator | Mar 2026 |
| 16052 | Knotts Brothers | Orma, WV 25268-0000 | Oil & Gas Operator | Dec 2021 |
| 16053 | Knox Energy Inc | New Albany, OH 43054 | Oil & Gas Operator | Dec 2024 |
| 16054 | Knox Industries, Inc. | Mineral Wells, TX 76068 | Oil & Gas Operator | Mar 2026 |
| 16055 | Knox, D. M., Oil Co. | Weatherford, TX 76086 | Oil & Gas Operator | Mar 2000 |
| 16056 | Knox, H. A. | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 16057 | Knox, Jack L. | Coleman, TX 76834 | Oil & Gas Operator | Mar 2026 |
| 16058 | Knutson Production Company | Loco, OK 73442-9706 | Oil & Gas Operator | Dec 2025 |
| 16059 | Ko Operating | Merkel, TX 79536 | Oil & Gas Operator | Mar 2026 |
| 16060 | Ko Operating LLC | Austin, TX 78746 | Oil Operator | Mar 2026 |
| 16061 | Kobar Corporation | Riverton, WY 82501 | Gas Operator | Dec 1996 |
| 16062 | Koby Oil Company LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2026 |
| 16063 | Kocana Resources | Ranchos Taos, NM 87557 | Oil & Gas Operator | Jul 1999 |
| 16064 | Koch Exploration | | Oil & Gas Operator | Oct 1988 |
| 16065 | Koch Exploration Company | Houston, TX 77046 | Oil & Gas Operator | Apr 2003 |
| 16066 | Koch Exploration Company, LLC | Denver, CO 80202 | Oil & Gas Operator | Jun 2019 |
| 16067 | Koch Gateway Pipeline Company | | Oil & Gas Operator | Feb 2001 |
| 16068 | Koch Hydrocarbon Company | Wichita, KS 67220-3203 | Oil & Gas Operator | Nov 2014 |
| 16069 | Koch Midstream Services Company | Wichita, KS 67201 | Oil & Gas Operator | Oct 2000 |
| 16070 | Koch Oil Company | | Oil & Gas Operator | May 2017 |
| 16071 | Koch Production Company | Worland, WY 82401 | Oil & Gas Operator | Dec 2002 |
| 16072 | Koch, P. S. | Seguin, TX 78155 | Oil & Gas Operator | May 2018 |
| 16073 | Koda GNB, LLC | Denver, CO 80202 | Oil & Gas Operator | Dec 2025 |
| 16074 | Koda Operating LLC | Tyler, TX 75703-5596 | Oil & Gas Operator | Dec 2025 |
| 16075 | Koda Resources Operating, LLC | | Oil & Gas Operator | Jan 2026 |
| 16076 | Koda Uinta, LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2026 |
| 16077 | Kodiak Drilling, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2003 |
| 16078 | Kodiak Energy LLC | Pineville, MO 64856 | Oil Operator | Dec 2019 |
| 16079 | Kodiak Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Sep 2020 |
| 16080 | Kodiak Oil & Gas Exploration Inc | Oklahoma City, OK 73134-1046 | Oil & Gas Operator | Dec 2025 |
| 16081 | Kodiak Oil & Gas Inc | Muenster, TX 76252 | Oil & Gas Operator | Mar 2026 |
| 16082 | Kodiak Oil Co. | Stockton, MO 65785 | Oil Operator | May 1996 |
| 16083 | Kodiak Operating, L.L.C. | Olney, TX 76374 | Oil & Gas Operator | Mar 2026 |
| 16084 | Kodiak Petroleum Corp. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 1996 |
| 16085 | Kodiak Petroleum Inc | Englewood, CO 80155 | Oil & Gas Operator | Sep 2025 |
| 16086 | Kodiak Productions LTD | Big Lake, TX 76932 | Oil & Gas Operator | Mar 2014 |
| 16087 | Kody Petroleum Co., Inc. | Daisetta, TX 77533 | Oil & Gas Operator | Mar 2026 |
| 16088 | Koebley Timothy W | Warren, PA 16365-2102 | Oil & Gas Operator | Dec 2025 |
| 16089 | Koehler Rose Dba R & H Production | Cement, OK 73017 | Oil & Gas Operator | Oct 2021 |
| 16090 | Koehn Alfred D | | Oil & Gas Operator | Sep 1994 |
| 16091 | Koehn Eldon R | | Oil Operator | Dec 2009 |
| 16092 | Koehn Radell W | | Oil Operator | Dec 2009 |
| 16093 | Koehn, Alfred D.(Deceased) | Galva, KS 67443 | Oil Operator | Mar 1998 |
| 16094 | Koehn, Carolyn | Galva, KS 67443 | Oil Operator | Sep 2025 |
| 16095 | Koehn, John W. | Sublette, KS 67877 | Gas Operator | May 2018 |
| 16096 | Koehn, Max R. | Copeland, KS 67837 | Oil & Gas Operator | Oct 2019 |
| 16097 | Koehn, Radell W. And Austin Koehn & Morgan Koehn | Galva, KS 67443 | Oil Operator | Sep 2025 |
| 16098 | Koehn, Roger D. | Galva, KS 67443 | Oil Operator | Apr 1998 |
| 16099 | Koelsch Rex Or Marie | Tulsa, OK 74107-8647 | Oil & Gas Operator | Jul 2024 |
| 16100 | Kohler Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 1994 |