OPERATORS · TEXAS · P-5 NUMBER 774719

Shell Western E&P

WindowAll time 90 days 1 year 3 years 10 years

TypeDrill 1168 Recompletion 94 Field transfer 11 Other 5 Reenter 1

28 FILINGS · 23 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Jul 10, 2006	622247	Drill	Zapata	Leyendecker, G. L. #9	18,442	Final completion	50535640	Now NI Energy LLC
Apr 7, 2006	617183	Drill	Zapata	Hinojosa, G. G. #16	18,315	Final completion	50535555	Now NI Energy LLC
Dec 27, 2005	611564	Drill	Zapata	Zachry, H. B. Company #9	18,400	Final completion	50535452	Now STX Operating Company
Oct 6, 2005	607453	Drill	Zapata	Muzza, G. P. #12	15,300	Final completion	50535383	Now NI Energy LLC
Jun 21, 2005	602359	Drill	Zapata	Leyendecker, G.L. #8	15,500	Final completion	50535307	Now NI Energy LLC
Apr 11, 2005	560272	Recompletion	Zapata	Leyendecker, G.L. #2	16,900	—	50531597	Now STX Operating Company
Mar 15, 2005	559036	Recompletion	Zapata	Zachry, H.B. Company #2ST	18,075	—	50531567	Now Comstock Oil & Gas LP
Jul 19, 2004	548400	Recompletion	Zapata	Leyendecker, G. L. #4	14,000	Final completion	50533454	Now NI Energy LLC
Jan 8, 2004	540480	Drill	Zapata	Zachary,h.b. Company #8	16,300	Plugged dry hole (P&A)	50534903	—
Apr 9, 2003	530504	Drill	Zapata	Zachry, H. B. Company #7	18,120	—	50534709	Now STX Operating Company
Apr 9, 2003	530504Amendment	Drill	Zapata	Zachry, H. B. Company #7	18,120	—	50534709	Now STX Operating Company
Apr 9, 2003	530504Amendment	Drill	Zapata	Zachry, H. B. Company #7	18,120	Final completion	50534709	Now STX Operating Company
Dec 18, 2002	526516	Drill	Zapata	Muzza, G. P. #11	17,050	Unperforated completion	50534641	—
Apr 9, 2002	518930	Drill	Zapata	Leyendecker, G. L. #7	17,970	—	50534522	Now STX Operating Company
Apr 9, 2002	518930Amendment	Drill	Zapata	Leyendecker, G. L. #7	17,970	Final completion	50534522	Now STX Operating Company
Jan 23, 2002	517029	Drill	Zapata	Zachry, H. B. Company #6	18,700	Final completion	50534481	Now STX Operating Company
Dec 19, 2001	516295	Recompletion	Zapata	Leyendecker, G. L. #4	14,400	Unperforated completion	50533454	Now NI Energy LLC
Sep 6, 2001	513386	Drill	Zapata	Leyendecker, G. L. #6	17,150	—	50534409	Now NI Energy LLC
Sep 6, 2001	513386Amendment	Drill	Zapata	Leyendecker, G. L. #6	17,150	Unperforated completion	50534409	Now NI Energy LLC
Mar 23, 2001	506899	Drill	Zapata	Trevino, Shell A. #2	16,400	Final completion	50534319	Now STX Operating Company
Nov 1, 2000	501450	Drill	Zapata	G. G. Hinojosa #15	20,450	Final completion	50534239	Now STX Operating Company
Jul 5, 2000	496893	Drill	Zapata	Muzza, G. P. #10	17,800	—	50534167	Now STX Operating Company
Jul 5, 2000	496893Amendment	Drill	Zapata	Muzza, G. P. #10	17,800	Final completion	50534167	Now STX Operating Company
Apr 18, 2000	494232	Drill	Zapata	Trevino, Shell A. #1	15,550	Final completion	50534122	Now NI Energy LLC
Feb 17, 1998	473383	Recompletion	Zapata	Hinojosa, G.G. #8	11,650	Final completion	50531450	Acquired from Shell Western E&P Inc.
Feb 25, 1983	187056	Recompletion	Zapata	Muzza, G. P. #1	15,262	Final completion	50531092	Acquired from Shell Oil Company
Dec 10, 1981	143622	Drill	Zapata	Hinojosa, G.G. #8	19,500	Final completion	50531450	Acquired from Shell Oil Company
May 23, 1979	49119	Drill	Zapata	Muzza, G. P. #1	21,500	Final completion	50531092	Acquired from Shell Oil Company