OPERATORS · TEXAS · P-5 NUMBER 881585

Vanguard Operating, LLC

8 FILINGS · 7 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Oct 21, 2005	608205	Drill	Atascosa	Augustin Orta #17	6,200	Spudded	01334204	Acquired from Redman Operating Company
Oct 21, 2005	608205Amendment	Drill	Atascosa	Orta, Augustin #17	6,200	Final completion	01334204	Acquired from Redman Operating Company
Feb 23, 2004	542343	Recompletion	Atascosa	Nixon-Steinle #2	7,275	Final completion	01301970	Acquired from Mobil Producing TX. & N.M. Inc.
Jun 24, 2002	521328	Recompletion	Atascosa	Nixon & Steinle #2	7,412	Final completion	01301970	Acquired from Mobil Producing TX. & N.M. Inc.
Oct 21, 1996	451855	Recompletion	Atascosa	Orta, Augustin #2	7,280	Final completion	01301788	Acquired from Mobil Producing TX. & N.M. Inc.
Aug 23, 1996	451854	Drill	Atascosa	Orta, Augustin #4	7,397	Final completion	01301790	Acquired from Mobil Producing TX. & N.M. Inc.
Sep 17, 1986	320696	Recompletion	Atascosa	Orta, Augustin #2	7,280	Final completion	01301788	Acquired from Mobil Producing TX. & N.M. Inc.
Aug 13, 1986	305218	Recompletion	Atascosa	Orta, Augustin #4	7,397	Final completion	01301790	Acquired from Mobil Producing TX. & N.M. Inc.