| 16901 | Lobo Petroleum Inc | Guymon, OK 73942-0714 | Oil Operator | Jul 2016 |
| 16902 | Lobo Production, Inc | Goodland, KS 67735 | Gas Operator | Apr 2026 |
| 16903 | Lobo Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 1995 |
| 16904 | Lobo Resources, LTD. | Houston, TX 77077 | Oil & Gas Operator | Apr 1994 |
| 16905 | Lobodo Inc. | | Oil & Gas Operator | Apr 2003 |
| 16906 | Local, Inc. | Orange Park, FL 32073 | Oil & Gas Operator | Apr 2026 |
| 16907 | Locators Oil And Gas Inc | Guthrie, OK 73044 | Oil & Gas Operator | Oct 2022 |
| 16908 | Locin Oil Corporation | Katy, TX 77494 | Oil & Gas Operator | Sep 2026 |
| 16909 | Lock 3 Company | Pittsburgh, PA 15220 | Oil & Gas Operator | Dec 2017 |
| 16910 | Lock Arbor Production Co | | Gas Operator | Aug 1987 |
| 16911 | Lockard Petroleum, Inc. | Hamilton, KS 66853 | Oil Operator | Dec 2019 |
| 16912 | Locke Stock & Barrel Res Inc | Calgary, AB T2P3G | Oil Operator | Nov 1998 |
| 16913 | Locke-Taylor Drilling Co | Rifle, CO 81650 | Gas Operator | Mar 2006 |
| 16914 | Lockhart Oil LLC | Neosho Falls, KS 66758 | Oil Operator | Apr 2026 |
| 16915 | Lockout Corporation | Austin, TX 78746 | Oil & Gas Operator | Sep 2026 |
| 16916 | Lockridge, John P | Denver, CO 80202 | Gas Operator | Mar 1999 |
| 16917 | Loco | Casper, WY 82602 | Oil & Gas Operator | Jul 2022 |
| 16918 | Loco Oil Company | Loco, OK 73442 | Oil Operator | Feb 1993 |
| 16919 | Locust Ridge Gas Company | | Oil Operator | Mar 2003 |
| 16920 | Lode Holdings, LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Sep 2026 |
| 16921 | Lodel Energy Resources Corporation | Houston, TX 77042 | Oil & Gas Operator | Sep 2026 |
| 16922 | Lodestone Operating | Portland, TX 78374 | Oil & Gas Operator | Jul 2026 |
| 16923 | Lodestone Operating, Inc. | Portland, TX 78374 | Oil & Gas Operator | Sep 2026 |
| 16924 | Lodi Drilling & Service Co. | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Sep 2026 |
| 16925 | Lodi Gas Storage L.L.C. | | Gas Operator | Jul 2026 |
| 16926 | Lodi Operating Company LLC | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Sep 2026 |
| 16927 | Loe Oil & Gas Corporation | | Gas Operator | Dec 1977 |
| 16928 | Loe Petroleum & Environmental Engineering LLC | | Oil Operator | Jul 2026 |
| 16929 | Loe Pipe Yard, Inc. | | Oil & Gas Operator | Jan 1997 |
| 16930 | Loeb Bros., LLC | Lawrenceville, IL 62439 | Oil Operator | Dec 2024 |
| 16931 | Loeb Herman L | | Oil & Gas Operator | Jan 1996 |
| 16932 | Loeb LLC* Herman L | | Oil & Gas Operator | Jun 2026 |
| 16933 | Loeb, Herman L, LLC | Lawrenceville, IL 62439 | Oil Operator | Dec 2017 |
| 16934 | Loewen E K | | Oil Operator | Mar 1986 |
| 16935 | Loewen Operator | | Oil & Gas Operator | Mar 1995 |
| 16936 | Loewen Operator, Inc. | Canton, KS 67428 | Oil & Gas Operator | Nov 2025 |
| 16937 | Lofton, W. A. | Wichita Falls, TX 76301 | Oil & Gas Operator | Jun 1998 |
| 16938 | Log Energy | MT Gilead, OH 43338 | Oil Operator | Dec 2025 |
| 16939 | Log Operating, LLC | Eagle Pass, TX 78853 | Oil & Gas Operator | Sep 2026 |
| 16940 | Logan Clay Prod Company | Logan, OH 43138 | Oil & Gas Operator | Dec 2005 |
| 16941 | Logan Gas Inc | Logan, OH 43138 | Oil & Gas Operator | Dec 2025 |
| 16942 | Logan Oil, LLC | | Oil & Gas Operator | May 2010 |
| 16943 | Logan Productions LLC | Wewoka, OK 74884 | Oil Operator | May 2025 |
| 16944 | Logas Energy, LLC | Lafayette, LA 70508 | Oil & Gas Operator | Sep 2026 |
| 16945 | Logos Operating, LLC | Farmington, NM 87401 | Oil & Gas Operator | Jun 2026 |
| 16946 | Logsdon Richard | | Oil Operator | Mar 1988 |
| 16947 | Logue And Patterson, Inc. | | Oil & Gas Operator | Nov 1991 |
| 16948 | Loil Oil LLC | Golden, CO 80402 | Oil & Gas Operator | Jul 2026 |
| 16949 | Loin Energy Corporation | La Grange, TX 78945 | Oil & Gas Operator | Sep 2026 |
| 16950 | Loki Oil LLC | Cushing, OK 74023 | Oil & Gas Operator | Mar 2026 |
| 16951 | Lokietek, Matthew & Christie | Cherry Creek, NY 14723 | Oil & Gas Operator | Dec 2025 |
| 16952 | Lola Energy Petroco LLC | Canonsburg, PA 15317 | Gas Operator | Jun 2026 |
| 16953 | Lolocav, LLC | Sonora, TX 76950 | Oil & Gas Operator | Sep 2026 |
| 16954 | Loloff Construction Inc | | Oil & Gas Operator | Apr 2016 |
| 16955 | Loma Enterprises Inc | Cortland, OH 44410 | Oil & Gas Operator | Dec 1998 |
| 16956 | Loma Oil Company | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2014 |
| 16957 | Loma VIsta Farms | Floresville, TX 78114 | Oil & Gas Operator | Jun 2019 |
| 16958 | Lomak Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 1998 |
| 16959 | Loman Linda Gann | Norman, OK 73069-6548 | Oil Operator | Apr 2011 |
| 16960 | Lomax Exploration Company | Roosevelt, UT 84066 | Oil & Gas Operator | Jun 1995 |
| 16961 | Lomax Operating Company, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Jun 2011 |
| 16962 | London Petroleum Corporation | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 16963 | London William W | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2015 |
| 16964 | London William W Inc | Oklahoma City, OK 73116-5116 | Oil & Gas Operator | Apr 2016 |
| 16965 | Lone Eagle LLC | | Oil & Gas Operator | Dec 2003 |
| 16966 | Lone Jack Oil Co. | | Oil Operator | Apr 2026 |
| 16967 | Lone Mountain Prod | | Oil Operator | Dec 2018 |
| 16968 | Lone Mountain Production Company | | Oil & Gas Operator | Jan 2016 |
| 16969 | Lone MTN Production Co | Billings, MT 59108-0965 | Oil & Gas Operator | Jul 2019 |
| 16970 | Lone Oak Energy Inc | Kyle, TX 78640 | Oil & Gas Operator | Sep 2026 |
| 16971 | Lone Pine Operating Company, Inc. | Salem, WV 26426 | Oil & Gas Operator | Dec 2021 |
| 16972 | Lone Pine Production Assoc.,Inc. | Houston, TX 77056 | Oil & Gas Operator | Apr 1993 |
| 16973 | Lone Star Gas Co. | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 16974 | Lone Star Interests, Inc. | Chanute, KS 66720 | Oil Operator | Sep 2001 |
| 16975 | Lone Star Land And Energy II LLC | Dallas, TX 75214 | Oil & Gas Operator | Jan 2020 |
| 16976 | Lone Star Oil & Gas | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 16977 | Lone Star Oil & Gas, Inc. | Greenville, KY 42345 | Oil & Gas Operator | Dec 2024 |
| 16978 | Lone Star Oil Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2026 |
| 16979 | Lone Star Operating Company | Pearsall, TX 78061 | Oil & Gas Operator | Sep 2026 |
| 16980 | Lone Star Operations LLC | Sweetwater, TX 79556 | Oil & Gas Operator | Sep 2026 |
| 16981 | Lone Star Pipeline Company | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 16982 | Lone Star Production | Lawn, TX 79530 | Oil & Gas Operator | Sep 2026 |
| 16983 | Lone Star Resources Company | Keyes, OK 73947 | Oil & Gas Operator | Mar 2015 |
| 16984 | Lone Star Services | Pecos, TX 79772 | Oil & Gas Operator | Sep 2026 |
| 16985 | Lone Tree Oil & Gas LLC | Greenwood VLG, CO 80111 | Oil & Gas Operator | Sep 2026 |
| 16986 | Lone Wolf Oil & Gas Co., LLC | Moline, KS 67353 | Oil & Gas Operator | Apr 2026 |
| 16987 | Lone Wolf Oil LLC | Wellsville, KS 66092 | Oil Operator | Dec 2009 |
| 16988 | Lone Wolf Operating Company | Denver, CO 80202 | Oil & Gas Operator | Nov 2005 |
| 16989 | Lone Wolf Operating Company, LP | Haxtun, CO 80731 | Oil & Gas Operator | Sep 2009 |
| 16990 | Lonesome B, LLC | Monahans, TX 79756 | Oil & Gas Operator | Sep 2026 |
| 16991 | Lonestar Foundation Inc. | | Oil Operator | Dec 2008 |
| 16992 | Lonestar Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
| 16993 | Lonestar Petroleum Services, LLC | Artesia, NM 88210 | Oil Operator | Jun 2026 |
| 16994 | Lonestar Production Services | Graham, TX 76450 | Oil Operator | Sep 2026 |
| 16995 | Lonewolf Operating, LLC | Billings, MT 59108 | Oil & Gas Operator | Apr 2026 |
| 16996 | Long Acres Prod. Co., Inc. | | Oil & Gas Operator | Aug 1986 |
| 16997 | Long And Ware Oil, A General Partnership | Pawhuska, OK 74056 | Oil Operator | Jan 2021 |
| 16998 | Long Beach Oil Development Co | Glendale, CA 91203 | Oil & Gas Operator | Jun 2004 |
| 16999 | Long Bros. Oil Co. | | Oil Operator | Jul 2015 |
| 17000 | Long Drilling Company, LLC | Hamilton, KS 66853 | Oil Operator | Apr 2026 |