OPERATORS · TEXAS · P-5 NUMBER 802302

Sonterra Operating, Inc.

2 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Nov 15, 2008	672829	Recompletion	Calhoun	State Tract 150-1 #1ST	10,320	Final completion	05731600	—
Jun 5, 2001	509867	Recompletion	Calhoun	Aquamarine Unit #1	13,000	Final completion	05731600	Acquired from Union Oil Company of California