Exhibit 21.1

Subsidiaries of the Registrant

1) Par Piceance Energy Equity, LLC – Delaware

2) Texadian Energy, Inc. – Delaware

3) Par Point Arguello, LLC – Delaware

4) EWI, LLC – Delaware

5) Par Washington, LLC – Delaware

6) Par Utah, LLC – Delaware

7) Par New Mexico, LLC – Delaware

8) HEWW Equipment, LLC – Delaware

9) Texadian Energy Canada Limited – Alberta, Canada

10) Piceance Energy, LLC – Delaware

11) Castle Exploration Company Inc. – Pennsylvania