OPERATORS · TEXAS · P-5 NUMBER 712833

Rio Operating Company

0 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
May 2, 1988	345911	Drill	Stephens	Cobb, S. C. #11	3,500	Final completion	42935029	Now Echols Oil Company L.L.C.
Mar 23, 1987	328133	Drill	Stephens	Cobb, S. C. #10	3,500	Final completion	42934854	Now Echols Oil Company L.L.C.
Dec 31, 1982	182505	Drill	Shackelford	Grant "A" #1	5,000	Final completion	41734933	Acquired from TXO Production Corp.
Feb 11, 1982	151380	Drill	Nolan	Morris, J.C. Est. #2	6,600	Final completion	35331263	Acquired from Vaughn Petroleum, Inc.
Oct 23, 1981	137913	Drill	Nolan	Morris, J.C. Est. #1	6,700	Final completion	35331211	Acquired from Vaughn Petroleum, Inc.
Aug 26, 1981	131692	Drill	Nolan	Sears #1	6,300	Final completion	35331184	Acquired from Texas Oil & Gas Corp.