OPERATORS · TEXAS · P-5 NUMBER 613760

North Central Oil Corp.

WindowAll time 90 days 1 year 3 years 10 years

CountyZapata 271 Webb 72 Brazoria 62 Wharton 40 Brazos 26 Aransas 23 Hidalgo 12 Newton 11 San Patricio 10 Wise 9

TypeDrill 450 Recompletion 100 Field transfer 5 Other 3

624 PERMITS · PAGE 1 OF 13 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Oct 20, 2005	608108	Drill	Zapata	Haynes, L. #156	10,500	Final completion	50535398	Now Merit Energy Company
Oct 19, 2005	608104	Drill	Zapata	Haynes, L. #157	11,000	Final completion	50535397	Now Merit Energy Company
Jul 28, 2005	602604	Recompletion	Zapata	Haynes, L. #60	9,216	Final completion	50534280	Now Pogo Producing Company LLC
Jun 28, 2005	602608	Recompletion	Zapata	Haynes, L. #62	9,753	Final completion	50534426	Now Merit Energy Company
Jun 28, 2005	602603	Recompletion	Zapata	Haynes, L. #64	10,900	Final completion	50534425	Now Pogo Producing Company LLC
Feb 23, 2005	556379	Drill	Zapata	Haynes, L. #146	10,900	Final completion	50535193	Now Pogo Producing Company LLC
Feb 16, 2005	557551	Drill	Zapata	Haynes, L. #150	10,000	—	50535216	Now Merit Energy Company
Feb 16, 2005	557551	Drill	Zapata	Haynes, L. #150	11,400	Final completion	50535216	Now Merit Energy Company
Feb 15, 2005	557550	Drill	Zapata	Haynes, L. #151	10,600	Final completion	50535215	Now Merit Energy Company
Jan 27, 2005	556659	Drill	Zapata	Haynes, L #149	11,400	Final completion	50535198	Now Merit Energy Company
Jan 21, 2005	556566	Drill	Zapata	Haynes, L. #148	11,100	Final completion	50535194	Now Merit Energy Company
Jan 14, 2005	556213	Drill	Zapata	Haynes, L #142	11,000	Final completion	50535189	Now Merit Energy Company
Jan 14, 2005	554972	Drill	Zapata	Haynes, L. #144	11,000	Side one multi completion	50535170	Now Pogo Producing Company LLC
Jan 11, 2005	554780	Drill	Zapata	Haynes, L. #141	11,200	Final completion	50535165	Now Pogo Producing Company LLC
Dec 28, 2004	555319	Drill	Zapata	Haynes, L. #145	11,000	Spudded	50535176	Now Merit Energy Company
Dec 3, 2004	554353	Drill	Zapata	Haynes, L #140	11,000	Final completion	50535159	Now Merit Energy Company
Dec 3, 2004	554352	Drill	Zapata	Haynes, L #130	10,600	Final completion	50535158	Now Merit Energy Company
Nov 1, 2004	552713	Drill	Zapata	Haynes, L. #139	11,000	Final completion	50535120	Now Pogo Producing Company LLC
Oct 20, 2004	552391	Drill	Zapata	Haynes, L. #136	10,400	Final completion	50535113	Now Merit Energy Company
Oct 20, 2004	552390	Drill	Zapata	Haynes, L. #137	10,000	Final completion	50535112	Now Merit Energy Company
Oct 19, 2004	552389	Drill	Zapata	Haynes, L. #138	10,600	Final completion	50535114	Now Merit Energy Company
Aug 31, 2004	550139	Drill	Zapata	Haynes, L #132	11,000	Final completion	50535082	Now Merit Energy Company
Aug 31, 2004	550138	Drill	Zapata	Haynes, L #135	9,200	Final completion	50535083	Now Pogo Producing Company LLC
Aug 27, 2004	550137	Drill	Zapata	Haynes, L #134	10,500	Final completion	50535084	Now Merit Energy Company
Aug 27, 2004	550127	Recompletion	Zapata	Decarreon, G G #11	11,200	Final completion	50533958	Now Merit Energy Company
Aug 4, 2004	548994	Drill	Zapata	Haynes, L. #133	10,500	Final completion	50535069	Now Merit Energy Company
Aug 4, 2004	548993	Drill	Zapata	Haynes, L. #131	11,000	Final completion	50535067	Now Merit Energy Company
Jul 21, 2004	548447	Recompletion	Zapata	State- Cuatro Cattle Company #1	13,177	Final completion	50534710	Now Merit Energy Company
Jul 8, 2004	546658	Drill	Zapata	Haynes, L. #129	11,000	—	50535023	Now Merit Energy Company
Jul 8, 2004	546658	Drill	Zapata	Haynes, L. #129	10,550	Side one multi completion	50535023	Now Merit Energy Company
Jun 30, 2004	547481	Drill	Zapata	Haynes, L. #128	10,500	Final completion	50535036	Now Merit Energy Company
Jun 29, 2004	547482	Drill	Zapata	Haynes, L. #125	11,100	Final completion	50535035	Now Merit Energy Company
Jun 22, 2004	547173	Recompletion	Zapata	Cassin, E. W. et AL #2	12,500	Final completion	50534549	Now Merit Energy Company
Jun 3, 2004	546368	Drill	Zapata	Neel, Bess #6	12,500	Final completion	50535018	Now Merit Energy Company
Jun 3, 2004	546367	Drill	Zapata	Jacaman - Maldonado Gas Unit #1	13,000	Final completion	50535017	Now Pogo Producing Company LLC
May 19, 2004	544649	Drill	Zapata	Haynes, L. #122	11,300	Final completion	50534988	Now Merit Energy Company
May 5, 2004	545193	Drill	Zapata	Haynes, L. #121	10,400	Final completion	50534998	Now Pogo Producing Company LLC
Apr 28, 2004	544962	Drill	Zapata	Haynes, L. #127	11,100	Final completion	50534993	Now Merit Energy Company
Apr 28, 2004	544961	Drill	Zapata	Haynes, L. #126	11,000	Final completion	50534992	Now Merit Energy Company
Apr 5, 2004	542895	Drill	Zapata	Haynes, L. #120	9,700	Final completion	50534947	—
Mar 19, 2004	543275	Drill	Zapata	Haynes, L. #115	11,000	—	50534956	Now Pogo Producing Company LLC
Mar 19, 2004	543275	Drill	Zapata	Haynes, L. #115	10,672	Final completion	50534956	Now Pogo Producing Company LLC
Mar 19, 2004	543274	Drill	Zapata	Haynes, L. #117	11,200	Final completion	50534957	Now Merit Energy Company
Mar 9, 2004	542894	Drill	Zapata	Haynes, L. #123	11,100	Final completion	50534946	Now Merit Energy Company
Mar 9, 2004	542893	Drill	Zapata	Haynes, L. #124	11,200	Final completion	50534944	Now Merit Energy Company
Mar 5, 2004	542677	Drill	Zapata	Haynes, L. #114	11,300	—	50534942	Now Pogo Producing Company LLC
Mar 5, 2004	542677	Drill	Zapata	Haynes, L. #114	11,300	Final completion	50534942	Now Pogo Producing Company LLC
Feb 27, 2004	542580	Drill	Zapata	Haynes, L. #116	11,900	Final completion	50534940	Now Merit Energy Company
Feb 27, 2004	542579	Drill	Zapata	Haynes, L. #119	9,000	Final completion	50534939	Now Merit Energy Company
Feb 25, 2004	542313	Drill	Zapata	Haynes, L. #118	10,500	Final completion	50534936	Now Merit Energy Company