OPERATORS · TEXAS · P-5 NUMBER 458780

Keystone Oil Co., Inc.

WindowAll time 90 days 1 year 3 years 10 years

24 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Feb 11, 1983	185648	Drill	Taylor	Lake Kirby Unit #208	1,990	Final completion	44132341	Now Chan West Oil Corporation
Oct 13, 1982	174121	Drill	Taylor	Southall #1	2,022	Plugged dry hole (P&A)	44132266	—
Jul 12, 1982	166001	Other	Taylor	Lake Kirby Unit #2-1	1,990	—	44181086	Now Chan West Oil Corporation
Jul 12, 1982	165977	Drill	Taylor	Lake Kirby Unit #2-7	1,990	Final completion	44132222	Now Chan West Oil Corporation
Jun 30, 1982	165224	Drill	Taylor	City of Abilene - Taylor County #2-100	1,995	—	44132213	—
Jun 29, 1982	165063	Drill	Taylor	Lake Kirby Unit #2-6	1,990	Final completion	44132210	Now Chan West Oil Corporation
Jun 29, 1982	165061	Other	Taylor	Lake Kirby Unit #2-1	1,990	Final completion	44181086	Now Chan West Oil Corporation
Jun 28, 1982	164914	Drill	Taylor	Lake Kirby Unit #2-5	1,995	Final completion	44132211	Now Chan West Oil Corporation
Jun 14, 1982	164256	Drill	Taylor	South Caudle #1	1,915	Plugged dry hole (P&A)	44132202	—
Jun 9, 1982	163187	Drill	Taylor	City of Abilene "B" #2B	1,990	Final completion	44132193	Now Salty Lime Energy LLC
May 21, 1982	162537	Drill	Taylor	City of Abilene "B" #1-B	1,990	Final completion	44132184	Now Salty Lime Energy LLC
May 6, 1982	160056	Recompletion	Taylor	City of Abilene "S" #1-S	3,247	Plugged dry hole (P&A)	44132171	—
Apr 22, 1982	157762	Drill	Taylor	City of Abilene "A" #1-A	1,995	—	44132161	—
Apr 22, 1982	157761	Drill	Taylor	City of Abilene #5	1,995	—	44132160	—
Apr 12, 1982	156392	Drill	Taylor	House #1	4,370	Plugged dry hole (P&A)	44132152	—
Jan 25, 1982	148304	Drill	Taylor	City of Abilene #4	1,995	Final completion	44132097	Now Centurion Operating Corporation
Jan 25, 1982	148300	Drill	Taylor	City of Abilene #3	1,995	Final completion	44132098	Now Centurion Operating Corporation
Dec 31, 1981	147230	Drill	Taylor	City of Abilene #2	2,000	Final completion	44132096	Now Centurion Operating Corporation
Nov 17, 1981	140778	Drill	Taylor	Thornton, E.L. #8	2,150	Final completion	44132051	Now Quantum Investments
Nov 2, 1981	139158	Drill	Taylor	City of Abilene #1	1,999	Final completion	44132040	Now Centurion Operating Corporation
Nov 2, 1981	139150	Drill	Taylor	Thornton, E. L. #6	2,150	Final completion	44132038	Now Quantum Investments
Mar 9, 1981	111449	Drill	Taylor	City of Abilene-Taylor County #1-100	4,000	Final completion	44131841	Acquired from Abilene Chamber of Comm. Found.
Mar 2, 1981	109943	Drill	Taylor	Thornton, E. L. #5	2,150	Final completion	44131830	Now Quantum Investments
Feb 17, 1981	112762	Other	Taylor	Thornton, E.L. #2	2,100	—	44105146	—