| Type | Name | Date |
| Acquisition / asset purchase agreement | Purchase and Sale Agreement, by and between Empire New Mexico LLC (d/b/a Green Tree New Mexico) and XTO Holdings, LLC | 07/30/2021 |
| Acquisition / asset purchase agreement | Purchase and Sale Agreement, by and between Empire New Mexico LLC and XTO Holdings, LLC | 05/17/2021 |
| Acquisition / asset purchase agreement | Purchase and Sale Agreement, by and between EnergyQuest and Empire North Dakota LLC | 03/05/2019 |
| Acquisition / asset purchase agreement | Purchase and Sale Agreement, by and between Cardinal Exploration and Production Company and Empire Louisiana LLC | 07/25/2018 |
| Acquisition / asset purchase agreement | Purchase and Sale Agreement, by and between Exodus Energy, Inc. and Empire Louisiana LLC | 07/19/2018 |
| Acquisition / asset purchase agreement | Purchase and Sale Agreement, by and among Wagon Wheel ArklaTex, LLC, Green Wheel, LLC and Empire Petroleum Corporation | 01/22/2018 |