| 1 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 2 | Lagoon Water Logistics LLC | | Oil Operator | Feb 2023 |
| 3 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | Apr 2024 |
| 4 | Lake Country Disposal II LLC | | Oil Operator | Jan 2024 |
| 5 | Lake Country Disposal LLC | | Oil Operator | Jan 2024 |
| 6 | Lancer Petroleum Corporation | Irving, TX 75014 | Oil & Gas Operator | Feb 2014 |
| 7 | Landmark Exploration Co | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2013 |
| 8 | Langham Petroleum Expl. Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 2009 |
| 9 | Lariat Petroleum Inc | Tulsa, OK 74119 | Oil & Gas Operator | Sep 2023 |
| 10 | Latex Petroleum Corp. | Houston, TX 77090 | Oil & Gas Operator | Aug 2012 |
| 11 | Latigo Oil And Gas Inc | Woodward, OK 73802-1208 | Oil & Gas Operator | Feb 2024 |
| 12 | Latigo Petroleum, LLC | Pampa, TX 79066 | Oil & Gas Operator | Apr 2024 |
| 13 | LCB Resources LLC | | Oil & Gas Operator | Feb 2024 |
| 14 | Le Norman Energy Corporation | Duncan, OK 73534 | Oil & Gas Operator | Nov 2014 |
| 15 | Legacy Reserves Operating LP | Denver, CO 80202 | Oil & Gas Operator | Apr 2024 |
| 16 | Likins-Foster Honolulu Corp | Foster City, CA 94404 | Oil & Gas Operator | Feb 2015 |
| 17 | Lime Rock Resources A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Jan 2024 |
| 18 | Lime Rock Resources II-A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Jan 2024 |
| 19 | Lincoln Rock Corporation | Northfield, IL 60093 | Oil & Gas Operator | Jul 2003 |
| 20 | Lindenmuth & Associates Inc | Austin, TX 78703 | Oil & Gas Operator | Feb 2024 |
| 21 | Lobo Exploration Company | Yukon, OK 73099 | Oil & Gas Operator | Jan 2024 |
| 22 | Locators Oil And Gas Inc | Guthrie, OK 73044-0130 | Oil & Gas Operator | Oct 2022 |
| 23 | Locin Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Apr 2024 |
| 24 | Lorentz Oil & Gas LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2024 |
| 25 | Louis Dreyfus Gas Marketing | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2018 |
| 26 | LVM Oil Production LLC | Yale, OK 74085-6688 | Oil & Gas Operator | Jul 2021 |
| 27 | LX4 LLC | | Oil Operator | Jan 2024 |
| 28 | Lyon Energy, Inc. | Plano, TX 75075 | Oil & Gas Operator | Feb 2000 |