| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Eagle Operating Inc | Minot, ND 58701 | Oil & Gas Operator | Mar 2024 |
| 2 | Eddy* Harold E & Florence L | Oil Operator | Jun 2010 | |
| 3 | Encana Oil & Gas (USA) Inc. | Denver, CO 80202 | Oil & Gas Operator | Oct 2020 |
| 4 | Endeavour Operating Corp | Denver, CO 80202-2000 | Oil & Gas Operator | Sep 2015 |
| 5 | EP Energy Management LLC | Oil & Gas Operator | Jun 2006 | |
| 6 | Equity Oil Company | Salt Lake City, UT 84110-095 | Oil & Gas Operator | Aug 2004 |
| 7 | Evergreen Operating Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 8 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | May 2024 |
| 9 | Exxonmobil Oil Corp | Houston, TX 77210 | Oil & Gas Operator | Mar 2024 |