| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 2 | Signal Hill Petroleum Inc. | Oil & Gas Operator | Sep 2025 | |
| 3 | Source Energy Corp. | Gas Operator | Aug 2022 | |
| 4 | Stream Energy, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2025 |
| 5 | Summit Exploration (California) LLC | Oil & Gas Operator | Feb 2018 |