| Name of Subsidiary | Jurisdiction of Incorporation or Organization | |||||||
| Evolution Royalties, Inc. | Delaware | |||||||
| Evolution Petroleum West, Inc. | Delaware | |||||||
| NGS Sub Corp. | Delaware | |||||||
| NGS Technologies, Inc. | Delaware | |||||||
| Evolution Operating Co., Inc. | Texas | |||||||
| Evolution Petroleum OK, Inc. | Texas | |||||||
| Tertiaire Resources Company | Texas | |||||||
| ARKLA Petroleum, LLC (Subsidiary of NGS Sub. Corp.) | Louisiana | |||||||
| NGS Resources, LLC (Subsidiary of NGS Technologies, Inc.) | Texas | |||||||