| 17901 | Logas Energy, LLC | Lafayette, LA 70508 | Oil & Gas Operator | Feb 2026 |
| 17902 | Logos Operating, LLC | Farmington, NM 87401 | Oil & Gas Operator | Dec 2025 |
| 17903 | Logsdon Richard | | Oil Operator | Mar 1988 |
| 17904 | Logue And Patterson, Inc. | | Oil & Gas Operator | Nov 1991 |
| 17905 | Loil Oil LLC | Golden, CO 80402 | Oil & Gas Operator | Dec 2025 |
| 17906 | Loin Energy Corporation | La Grange, TX 78945 | Oil & Gas Operator | Feb 2026 |
| 17907 | Loki Oil LLC | Cushing, OK 74023 | Oil & Gas Operator | Nov 2024 |
| 17908 | Lola Energy Petroco LLC | Canonsburg, PA 15317 | Gas Operator | Dec 2025 |
| 17909 | Lolocav, LLC | Sonora, TX 76950 | Oil & Gas Operator | Feb 2026 |
| 17910 | Loloff Construction Inc | | Oil & Gas Operator | Apr 2016 |
| 17911 | Loma Enterprises Inc | Cortland, OH 44410 | Oil & Gas Operator | Dec 1998 |
| 17912 | Loma Oil Company | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2014 |
| 17913 | Loma VIsta Farms | Floresville, TX 78114 | Oil & Gas Operator | Jun 2019 |
| 17914 | Lomak Petroleum Michigan Inc | | Gas Operator | Jul 1992 |
| 17915 | Lomak Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 1998 |
| 17916 | Loman Linda Gann | Norman, OK 73069-6548 | Oil Operator | Apr 2011 |
| 17917 | Lomax Exploration Company | Roosevelt, UT 84066 | Oil & Gas Operator | Jun 1995 |
| 17918 | Lomax Operating Company, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Jun 2011 |
| 17919 | London Petroleum Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 17920 | London William W | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2015 |
| 17921 | London William W Inc | Oklahoma City, OK 73116-5116 | Oil & Gas Operator | Apr 2016 |
| 17922 | Lone Eagle LLC | | Oil & Gas Operator | Dec 2003 |
| 17923 | Lone Jack Oil Co. | | Oil Operator | Sep 2025 |
| 17924 | Lone Mountain Prod | | Oil Operator | Dec 2018 |
| 17925 | Lone Mountain Production Company | | Oil & Gas Operator | Jan 2016 |
| 17926 | Lone MTN Production Co | Billings, MT 59108-0965 | Oil & Gas Operator | Jul 2019 |
| 17927 | Lone Oak Energy Inc | Kyle, TX 78640 | Oil & Gas Operator | Feb 2026 |
| 17928 | Lone Pine Operating Company, Inc. | Salem, WV 26426 | Oil & Gas Operator | Dec 2021 |
| 17929 | Lone Pine Production Assoc.,Inc. | Houston, TX 77056 | Oil & Gas Operator | Apr 1993 |
| 17930 | Lone Star Gas Co. | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 17931 | Lone Star Interests, Inc. | Chanute, KS 66720 | Oil Operator | Sep 2001 |
| 17932 | Lone Star Land And Energy II LLC | Dallas, TX 75214 | Oil & Gas Operator | Jan 2020 |
| 17933 | Lone Star Oil & Gas | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 17934 | Lone Star Oil & Gas, Inc. | Greenville, KY 42345 | Oil & Gas Operator | Dec 2023 |
| 17935 | Lone Star Oil Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2025 |
| 17936 | Lone Star Operating Company | Pearsall, TX 78061 | Oil & Gas Operator | Feb 2026 |
| 17937 | Lone Star Operations LLC | Lubbock, TX 79408 | Oil & Gas Operator | Feb 2026 |
| 17938 | Lone Star Pipeline Company | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 17939 | Lone Star Production | Lawn, TX 79530 | Oil & Gas Operator | Feb 2026 |
| 17940 | Lone Star Resources Company | Keyes, OK 73947 | Oil & Gas Operator | Mar 2015 |
| 17941 | Lone Star Services | Pecos, TX 79772 | Oil & Gas Operator | Feb 2026 |
| 17942 | Lone Tree Oil & Gas LLC | Greenwood VLG, CO 80111 | Oil & Gas Operator | Feb 2026 |
| 17943 | Lone Wolf Gas Inc | Wetumka, OK 74883-0333 | Gas Operator | May 2013 |
| 17944 | Lone Wolf Oil & Gas Co., LLC | Moline, KS 67353 | Oil & Gas Operator | Sep 2025 |
| 17945 | Lone Wolf Oil LLC | Wellsville, KS 66092 | Oil Operator | Dec 2009 |
| 17946 | Lone Wolf Operating Company | Denver, CO 80202 | Oil & Gas Operator | Nov 2005 |
| 17947 | Lone Wolf Operating Company, LP | Haxtun, CO 80731 | Oil & Gas Operator | Sep 2009 |
| 17948 | Lone Wolf Operating, LLC | Billings, MT 59108 | Oil & Gas Operator | Oct 2025 |
| 17949 | Lonesome B, LLC | Monahans, TX 79756 | Oil & Gas Operator | Feb 2026 |
| 17950 | Lonestar Foundation Inc. | | Oil Operator | Dec 2008 |
| 17951 | Lonestar Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
| 17952 | Lonestar Petroleum Services, LLC | Artesia, NM 88210 | Oil Operator | Dec 2025 |
| 17953 | Lonestar Production Services | Graham, TX 76450 | Oil Operator | Feb 2026 |
| 17954 | Long Acres Prod. Co., Inc. | | Oil & Gas Operator | Aug 1986 |
| 17955 | Long And Ware Oil, A General Partnership | Pawhuska, OK 74056 | Oil Operator | Jan 2021 |
| 17956 | Long Beach Oil Development Co | Glendale, CA 91203 | Oil & Gas Operator | Jun 2004 |
| 17957 | Long Bros. Oil Co. | | Oil Operator | Jul 2015 |
| 17958 | Long Drilling Company, LLC | Hamilton, KS 66853 | Oil Operator | Sep 2025 |
| 17959 | Long Engineering Company Inc | Oklahoma City, OK 73112-7769 | Oil Operator | Jun 2008 |
| 17960 | Long George L | San Antonio, TX 78209 | Oil & Gas Operator | Feb 1996 |
| 17961 | Long Jack Senior | | Oil Operator | Jan 2004 |
| 17962 | Long Oil & Natural Gas Corp. | | Oil & Gas Operator | Feb 1996 |
| 17963 | Long Oil And Gas Expl., LTD | | Oil & Gas Operator | Apr 1988 |
| 17964 | Long Operating, L.L.C. | Shreveport, LA 71166 | Oil & Gas Operator | Jun 2006 |
| 17965 | Long Petroleum, Inc. | Shreveport, LA 71166 | Oil & Gas Operator | Jun 2020 |
| 17966 | Long Phillip C | Muskogee, OK 74403 | Oil & Gas Operator | May 2013 |
| 17967 | Long Production LLC | Claremore, OK 74017-2808 | Oil & Gas Operator | Oct 2019 |
| 17968 | Long Resources Inc | Austin, TX 78730 | Oil & Gas Operator | Dec 2025 |
| 17969 | Long Royalty Company | Yukon, OK 73085 | Oil & Gas Operator | Jan 2004 |
| 17970 | Long Shot Oil Co. | | Oil Operator | Aug 1997 |
| 17971 | Long Trust The | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2008 |
| 17972 | Long Trusts, The | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 17973 | Long, Edgar E. | Windthorst, TX 76389 | Oil & Gas Operator | Oct 2011 |
| 17974 | Long, Edwin A. And Glenda | Hamilton, KS 66853 | Oil Operator | Aug 2000 |
| 17975 | Long, James A | | Oil Operator | Aug 2000 |
| 17976 | Long, John P | | Oil & Gas Operator | Nov 2025 |
| 17977 | Long, Larry T. | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2017 |
| 17978 | Long, Lewis C., A General Partnership | Hamilton, KS 66853 | Oil Operator | Dec 2019 |
| 17979 | Long, Marshall | Chase, KS 67524 | Oil Operator | Mar 1986 |
| 17980 | Long-Tex Exploration, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Feb 2026 |
| 17981 | Longacre Oil & Gas | Enid, OK 73702 | Oil & Gas Operator | Mar 2013 |
| 17982 | Longberry Energy Inc | Keota, OK 74941 | Gas Operator | Dec 2025 |
| 17983 | Longbotham Energy, LLC | Jackson, TN 38308 | Oil Operator | Feb 2026 |
| 17984 | Longbow LLC | | Oil & Gas Operator | Dec 2025 |
| 17985 | Longbranch Energy, LP | Center, TX 75935 | Oil & Gas Operator | Feb 2026 |
| 17986 | Longbranch Oil Company | Oklahoma City, OK 73154-0735 | Oil & Gas Operator | Mar 2018 |
| 17987 | Longfellow Energy, LP | Dallas, TX 75225 | Oil & Gas Operator | Feb 2026 |
| 17988 | Longhorn Crude, LLC | Jetmore, KS 67854 | Oil Operator | Sep 2025 |
| 17989 | Longhorn Energy | | Oil & Gas Operator | Jun 1991 |
| 17990 | Longhorn Estates & Cattle Co. LLC | Jennings, OK 74038 | Oil Operator | Nov 2025 |
| 17991 | Longhorn Oil & Gas | | Oil Operator | Sep 2025 |
| 17992 | Longhorn Oil & Gas Company | | Oil & Gas Operator | Sep 1982 |
| 17993 | Longhorn Oil Properties, Inc. | Pottsboro, TX 75076 | Oil & Gas Operator | Feb 2026 |
| 17994 | Longhorn Propert | | Oil Operator | Feb 1989 |
| 17995 | Longhorn Service & Drilling Co. | Kermit, TX 79745 | Oil & Gas Operator | Jun 2019 |
| 17996 | Longhurst Oil & Gas Inc | | Oil & Gas Operator | Nov 2013 |
| 17997 | Longleaf Energy Group, Inc. | Brewton, AL 36426 | Oil & Gas Operator | Feb 2004 |
| 17998 | Longleaf Gas & Oil | | Oil Operator | May 2010 |
| 17999 | Longs Peak Resources LLC | Houston, TX 77019 | Oil & Gas Operator | Dec 2025 |
| 18000 | Longshot Energy LLC | League City, TX 77573 | Oil Operator | Feb 2026 |