OPERATORS · TEXAS · P-5 NUMBER 254263

Esco Oil Operating Company LLC

WindowAll time 90 days 1 year 3 years 10 years

CountyMaverick 88 Motley 22 Floyd 9 Briscoe 4 Henderson 2 Galveston 1 Swisher 1

127 FILINGS · 102 PERMITS · PAGE 2 OF 3 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Nov 23, 2004	553836	Drill	Floyd	Fowler Unit #1	9,000	Unperforated completion	15330224	Acquired from Geosurveys, Inc.
Aug 11, 2004	549480	Drill	Maverick	Chittim E. #1131 HH	5,600	Final completion	32332750	Acquired from Exploration Company, The
Aug 5, 2004	549183	Drill	Motley	M. Burleson Ranch "60" #1	11,000	Unperforated completion	34530309	Acquired from Vintage Petroleum, Inc.
Jul 26, 2004	548732	Drill	Motley	Echols "2" #1	10,000	Unperforated completion	34530308	Acquired from Vintage Petroleum, Inc.
Jul 15, 2004	548190	Drill	Maverick	Chittim #2159HH	5,600	Final completion	32332730	Acquired from Exploration Company, The
Jun 25, 2004	547330	Drill	Maverick	Chittim Lease #3142 HH	5,600	Final completion	32332727	Acquired from Exploration Company, The
Jun 7, 2004	546515	Drill	Maverick	Chittim #3130HH	5,600	Final completion	32332723	Acquired from Exploration Company, The
May 12, 2004	545434	Drill	Maverick	Chittim #5128HH	5,600	Final completion	32332718	Acquired from Exploration Company, The
Mar 19, 2004	543442	Drill	Maverick	Chittim #4129 HH	5,600	Final completion	32332714	Acquired from Exploration Company, The
Mar 19, 2004	543442Amendment	Drill	Maverick	Chittim #4129 HH	5,600	Spudded	32332714	Acquired from Aroc (Texas) Inc.
Mar 12, 2004	543151	Drill	Maverick	Chittim #3129HH	5,600	Spudded	32332713	Acquired from Exploration Company, The
Mar 12, 2004	543151Amendment	Drill	Maverick	Chittim #3129 HH	5,600	Spudded	32332713	Acquired from Aroc (Texas) Inc.
Mar 12, 2004	543151Amendment	Drill	Maverick	Chittim #3129 HH	5,600	Final completion	32332713	Acquired from Southern Bay Operating, L.L.C.
Feb 23, 2004	542062	Drill	Maverick	Chittim #4128HH	9,200	Spudded	32332711	Acquired from Exploration Company, The
Feb 23, 2004	542062Amendment	Drill	Maverick	Chittim #4128 HH	9,200	Spudded	32332711	Acquired from Aroc (Texas) Inc.
Feb 23, 2004	542062Amendment	Drill	Maverick	Chittim #4128HH	9,200	Final completion	32332711	Acquired from Txco Resources Inc.
Feb 19, 2004	542170	Drill	Maverick	Chittim #2187 HH	3,600	Final completion	32332712	Acquired from Exploration Company, The
Sep 18, 2003	536501	Drill	Maverick	Chittim #2157HH	6,000	Final completion	32332699	Acquired from Exploration Company, The
Sep 9, 2003	536104	Drill	Maverick	Chittim #4143HH	6,000	Final completion	32332698	Acquired from Exploration Company, The
Aug 4, 2003	534862	Drill	Maverick	Chittim #2144HH	6,000	Final completion	32332692	Acquired from Exploration Company, The
Jul 15, 2003	534140	Drill	Maverick	Chittim #3158HH	6,000	Final completion	32332687	Acquired from Exploration Company, The
Jun 13, 2003	533069	Drill	Maverick	Chittim #1157HH	6,000	Final completion	32332685	Acquired from Exploration Company, The
Jun 10, 2003	532867	Drill	Maverick	Chittim #1160 HH	6,000	Final completion	32332684	Acquired from Exploration Company, The
Jun 10, 2003	532867Amendment	Drill	Maverick	Chittim #1160 HH	6,000	Spudded	32332684	Acquired from Aroc (Texas) Inc.
May 13, 2003	531378	Drill	Motley	Cogdell, D. M. Jr Est. #1001	10,000	Final completion	34530306	Acquired from Legacy Exploration, LLC
May 12, 2003	531784	Drill	Maverick	Chittim #3143HH	6,000	Final completion	32332679	Acquired from Exploration Company, The
Apr 22, 2003	530921	Drill	Maverick	Chittim #3141HH	5,600	Spudded	32332667	Acquired from Exploration Company, The
Apr 22, 2003	530921Amendment	Drill	Maverick	Chittim #3141HH	5,600	Final completion	32332667	Acquired from Exploration Company, The
Mar 28, 2003	530070	Drill	Maverick	Chittim #1159H	5,600	Final completion	32332664	Acquired from Exploration Company, The
Mar 3, 2003	529010	Drill	Maverick	Chittim #2141H	5,600	Final completion	32332658	Acquired from Exploration Company, The
Jan 6, 2003	526941	Drill	Maverick	Chittim #1144HH	5,600	Final completion	32332649	Acquired from Exploration Company, The
Nov 13, 2002	525345	Drill	Maverick	Chittim #2140H	5,700	Spudded	32332647	Acquired from Exploration Company, The
Nov 13, 2002	525345Amendment	Drill	Maverick	Chittim #2140H	5,700	Final completion	32332647	Acquired from Exploration Company, The
Oct 14, 2002	524554	Drill	Maverick	Chittim #1140H	5,700	Final completion	32332643	Acquired from Exploration Company, The
Aug 20, 2002	522797	Drill	Maverick	Chittim #3128H	5,700	Final completion	32332630	Acquired from Exploration Company, The
Jul 24, 2002	522134	Drill	Maverick	Chittim #1127H	5,700	—	32332626	Acquired from Exploration Company, The
Jul 24, 2002	522134Amendment	Drill	Maverick	Chittim #1127H	5,700	Final completion	32332626	Acquired from Exploration Company, The
Apr 8, 2002	518815	Drill	Maverick	Chittim #2128H	5,700	Final completion	32332608	Acquired from Exploration Company, The
Apr 2, 2002	518719	Drill	Maverick	Chittim #2143H	5,700	Final completion	32332606	Acquired from Exploration Company, The
Jan 31, 2002	517228	Drill	Maverick	Chittim #1142H	5,700	Final completion	32332600	Acquired from Exploration Company, The
Nov 12, 2001	515045	Recompletion	Maverick	Chittim #1187	6,230	Final completion	32332534	Acquired from Exploration Company, The
Mar 27, 2001	507089	Reenter	Briscoe	Hamilton, M. J. #1	8,942	Final completion	04530548	Acquired from Enexco, Inc.
Mar 9, 2001	506306	Drill	Maverick	Chittim Ranch 141 #1H	5,500	Spudded	32332577	Acquired from Aroc (Texas) Inc.
Mar 9, 2001	506306Amendment	Drill	Maverick	Chittim #1141H	5,500	Final completion	32332577	Acquired from Exploration Company, The
Sep 1, 2000	499150	Drill	Maverick	Chittim #2130	6,500	Final completion	32332556	Acquired from Exploration Company, The
Mar 30, 2000	493616	Drill	Maverick	Chittim #1130	6,500	Final completion	32332541	Acquired from Exploration Company, The
Jan 25, 2000	491391	Recompletion	Maverick	Chittim #1102H	5,020	Unperforated completion	32332529	Acquired from Exploration Company, The
Oct 7, 1999	488258	Drill	Maverick	Chittim #1187	6,250	Final completion	32332534	Acquired from Exploration Company, The
Jan 28, 1999	482312	Drill	Maverick	Chittim #1102	6,000	Spudded	32332529	Acquired from Exploration Company, The
Jan 28, 1999	482312Amendment	Drill	Maverick	Chittim #1102	5,950	Final completion	32332529	Acquired from Exploration Company, The