| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | East Resources MGMT LLC | Oil & Gas Operator | Dec 2010 | |
| 2 | East Resources, Inc. | Parkersburg, WV 26101-5519 | Oil & Gas Operator | Dec 2021 |
| 3 | Eastern Gas Trans & Storage Inc | Bridgeport, WV 26330-6919 | Oil & Gas Operator | Dec 2025 |
| 4 | Empire Exploration Inc | Wichita, KS 67202 | Oil & Gas Operator | Jul 1997 |
| 5 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 6 | Eqt Production Company | Pittsburg, PA 15222 | Oil & Gas Operator | Apr 2026 |
| 7 | Equitable Prod Eastern States Exploration Inc | Snow Shoe, PA 16874-0178 | Gas Operator | Dec 2001 |