Exhibit 21.1

List of Subsidiaries

Evolution Petroleum Corporation — A Nevada Corporation
	Officers:
	Robert S. Herlin, President and Chief Executive Officer
	Sterling H. McDonald, Vice President, Chief Financial Officer and Treasurer
	Daryl V. Mazzanti, Vice President, Operations
	David Joe, Secretary
	Directors:
	Robert S. Herlin, Chairman
	Laird Q. Cagan
	Jed DiPaolo
	Gene Stoever
	William Dozier
	Kelly Loyd
NGS Sub. Corp. — A Delaware Corporation
	Officers:
	Robert S. Herlin, President and Chief Executive Officer
	Sterling H. McDonald, Chief Financial Officer and Treasurer
	David Joe, Secretary
	Directors:
	Robert S. Herlin
	Sterling H. McDonald
Arkla Petroleum, L.L.C. — A Louisiana Corporation
	NGS Sub Corp, Member
	Robert S. Herlin, Manager
	Sterling H. McDonald, Manager
NGS Technologies, Inc. — A Delaware Corporation
	Officers:
	Robert S. Herlin, President and Chief Executive Officer
	Sterling H. McDonald, Chief Financial Officer and Treasurer
	David Joe, Secretary
	Directors:
	Robert S. Herlin
Evolution Operating Co. Inc. — A Texas Corporation
	Officers:
	Robert S. Herlin, President and Chief Executive Officer
	Sterling H. McDonald, Vice President, Chief Financial Officer, Treasurer and Secretary
	Daryl V. Mazzanti, Vice President, Operations
	David Joe, Controller
	Directors:
	Robert S. Herlin
	Sterling H. McDonald
Tertiaire Resources Company — A Texas Corporation
	Officers:
	Robert S. Herlin, President and Chief Executive Officer
	Sterling H. McDonald, Vice President, Chief Financial Officer, Treasurer and Secretary
	Daryl V. Mazzanti, Vice President, Operations
	Directors:
	Robert S. Herlin
	Sterling H. McDonald
	Daryl V. Mazzanti