| 1 | L & R Energy Corporation | Spearman, TX 79081 | Oil & Gas Operator | Nov 2014 |
| 2 | La VIda Energy Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 1993 |
| 3 | Laddex, LTD. | Amarillo, TX 79102 | Oil & Gas Operator | Dec 2024 |
| 4 | Laredo Petroleum, Inc. | Tulsa, OK 74120 | Oil & Gas Operator | Mar 2023 |
| 5 | Latex Petroleum Corp. | Houston, TX 77090 | Oil & Gas Operator | Aug 2012 |
| 6 | Latigo Petroleum Texas, LP | Houston, TX 77002 | Oil & Gas Operator | Feb 2009 |
| 7 | Latigo Petroleum, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2024 |
| 8 | Latigo Petroleum, LLC | Pampa, TX 79066 | Oil & Gas Operator | Dec 2024 |
| 9 | LDX Operating Company, LLC. | Amarillo, TX 79102 | Oil & Gas Operator | Dec 2024 |
| 10 | Le Norman Operating LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Nov 2019 |
| 11 | Lease Holders Acquisitions LLC | Yukon, OK 73099 | Gas Operator | Dec 2024 |
| 12 | Legacy Reserves Operating LP | Denver, CO 80201 | Oil & Gas Operator | Dec 2024 |
| 13 | Lera | Borger, TX 79007 | Oil & Gas Operator | Dec 2024 |
| 14 | Lime Rock Resources II-A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Sep 2024 |
| 15 | Linn Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2017 |
| 16 | Live Oak Gas Company | Dallas, TX 75251 | Oil & Gas Operator | Dec 2024 |
| 17 | Lomak Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 1998 |
| 18 | Lone Tree Oil & Gas LLC | Greenwood VLG, CO 80111 | Oil & Gas Operator | Dec 2024 |
| 19 | Luxor Oil & Gas, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2017 |
| 20 | Lytle Creek Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Dec 2024 |