OPERATORS · TEXAS · P-5 NUMBER 255133

Etoco, L.P.

WindowAll time 90 days 1 year 3 years 10 years

CountyHarris 33 Austin 18 Goliad 14 Tyler 9 Shelby 5 Chambers 4 Milam 4 Nacogdoches 3 Jefferson 3 Zavala 2

TypeDrill 34 Recompletion 7 Reenter 1 Field transfer 1

104 FILINGS · 88 PERMITS · PAGE 2 OF 3 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Mar 16, 2005	559092	Drill	Goliad	Heard Unit #3	11,200	Spudded	17533749	Acquired from Etoco Incorporated
Mar 16, 2005	559092Amendment	Drill	Goliad	Heard Unit #3	12,500	Final completion	17533749	Acquired from Etoco Incorporated
Mar 9, 2005	558768	Drill	Goliad	Heard Unit #2	11,200	Spudded	17533746	Acquired from Etoco Incorporated
Mar 9, 2005	558768Amendment	Drill	Goliad	Heard Unit #2	12,500	—	17533746	Acquired from Etoco Incorporated
Mar 9, 2005	558768Amendment	Drill	Goliad	Heard Unit #2	12,500	Final completion	17533746	—
Mar 7, 2005	558629	Drill	Harris	Ambrose/Van Riet Unit #1	13,000	Final completion	20132713	Acquired from Etoco Incorporated
Dec 3, 2004	554360	Drill	Austin	Kaechele Unit #5	12,000	Spudded	01530885	Acquired from Etoco Incorporated
Oct 13, 2004	552246	Drill	Goliad	Heard #1	11,500	Spudded	17533666	Acquired from Etoco Incorporated
Oct 13, 2004	552246Amendment	Drill	Goliad	Heard #1	11,500	Final completion	17533666	Acquired from Etoco Incorporated
Sep 28, 2004	551624	Drill	Harris	Destec #2D	7,200	Final completion	20132701	Acquired from Etoco Incorporated
Sep 9, 2004	550742	Drill	Austin	Charles Kaechele Unit #3	12,000	Final completion	01530874	Acquired from Etoco Incorporated
Apr 14, 2004	543419	Drill	Harris	Jesse Bishop Unit #1	9,400	Final completion	20132550	Acquired from Etoco Incorporated
Mar 15, 2004	543218	Recompletion	Harris	Etoco Fee Unit #2R	11,000	Final completion	20132602	Acquired from Etoco Incorporated
Mar 8, 2004	543503	Drill	Austin	Schaer Unit #4	12,000	Final completion	01530859	Acquired from Etoco Incorporated
Mar 8, 2004	542910	Drill	Austin	Schaer Unit #4	12,000	—	01530859	Acquired from Etoco Incorporated
Sep 8, 2003	536140	Drill	Austin	Kaechele, Charles #2	12,000	Final completion	01530840	Acquired from Etoco Incorporated
Aug 12, 2003	535234	Drill	Austin	Schaer Unit #3	12,000	Final completion	01530838	Acquired from Etoco Incorporated
May 27, 2003	531320	Recompletion	Harris	Destec #1R	10,728	Final completion	20132349	Acquired from Etoco Incorporated
May 22, 2003	532221	Drill	Austin	Schaer Unit #2	12,000	Final completion	01530833	Acquired from Etoco Incorporated
Apr 30, 2003	531321	Drill	Fort Bend	Marlin #1	12,500	Final completion	15732219	Acquired from Etoco Incorporated
Oct 21, 2002	524798	Drill	Austin	Schaer #1	12,000	Final completion	01530827	Acquired from Etoco Incorporated
Jul 26, 2002	522200	Drill	Austin	Charles Kaechele Unit #1	12,000	Final completion	01530822	Acquired from Etoco Incorporated
Nov 27, 2001	514905	Drill	Harris	Bishop Unit #1ST	9,400	—	20132550	Acquired from Etoco Incorporated
Jul 13, 2001	511407	Drill	Harris	Sam Houston Unit #4	12,000	Final completion	20132625	Acquired from Etoco Incorporated
Jun 5, 2001	509860	Drill	Shelby	Patroon Bayou 147 #2H	7,350	Spudded	41930798	Acquired from Brown, Tom Inc.
Jun 5, 2001	509860Amendment	Drill	Shelby	Patroon Bayou 147 #2H	7,350	Final completion	41930798	Acquired from Brown, Tom Inc.
May 11, 2001	507538	Drill	Harris	Jones, L. #1	12,000	Final completion	20132623	Acquired from Etoco Incorporated
Mar 30, 2001	507220	Drill	Austin	Kaechele Unit #4	12,000	Final completion	01530768	Acquired from Etoco Incorporated
Jan 8, 2001	503809	Drill	Shelby	Patroon Bayou #1H	6,900	—	41930771	Acquired from Brown, Tom Inc.
Jan 8, 2001	503809Amendment	Drill	Shelby	Patroon Bayou #1H	9,000	—	41930771	Acquired from Brown, Tom Inc.
Jan 8, 2001	503809Amendment	Drill	Shelby	Patroon Bayou #1H	9,000	Final completion	41930771	Acquired from Brown, Tom Inc.
Dec 22, 2000	503376	Drill	Harris	State of Texas Shallow Unit #1R	9,300	Final completion	20132612	Acquired from Etoco Incorporated
Oct 27, 2000	501316	Drill	Harris	State of Texas Deep Unit #1	12,000	Final completion	20132610	Acquired from Etoco Incorporated
Sep 15, 2000	499662	Drill	Harris	Sam Houston Unit #2	12,000	Final completion	20132609	Acquired from Etoco Incorporated
Aug 22, 2000	498718	Drill	Austin	Kaechele Unit #3	12,000	Final completion	01530759	Acquired from Etoco Incorporated
Jul 24, 2000	497520	Drill	Harris	Etoco Fee #2	11,000	Final completion	20132602	Acquired from Etoco Incorporated
Oct 25, 1999	488788	Drill	Austin	Kaechele Unit #2	12,000	Final completion	01530746	Acquired from Etoco Incorporated
Mar 12, 1999	482755	Drill	Harris	Jackson/Peace #1	9,000	Final completion	20132568	Acquired from Etoco Incorporated
Oct 7, 1998	479375	Drill	Harris	Bishop Unit #1	9,400	Final completion	20132550	Acquired from Etoco Incorporated
Jul 27, 1998	478276	Drill	Austin	Kaechele Unit #1	12,700	Final completion	01530717	Acquired from Etoco Incorporated
May 20, 1998	476462	Drill	Harris	L. L. & E. No. 1 Unit #1	11,000	—	20132533	Acquired from Etoco Incorporated
May 20, 1998	476462Amendment	Drill	Harris	L. L. & E. No. 1 Unit #1	11,000	Final completion	20132533	Acquired from Etoco Incorporated
May 14, 1998	476295	Drill	Harris	Jones Unit #1	8,900	Final completion	20132532	Acquired from Columbus Energy Corp.
Jun 19, 1997	464018	Recompletion	Harris	Houston, Sam #1	12,000	Final completion	20132160	Acquired from Etoco Incorporated
Mar 13, 1997	459838	Drill	Harris	Campbell-Harrington #1	9,200	Spudded	20132485	Acquired from Etoco Incorporated
Mar 13, 1997	459838Amendment	Drill	Harris	Campbell-Harrington #1	9,200	Final completion	20132485	Acquired from Etoco Incorporated
Sep 23, 1996	453019	Drill	Harris	Barnhart #2	9,200	Final completion	20132467	Acquired from Etoco Incorporated
Apr 3, 1995	434462	Recompletion	Harris	Houston, Sam #1	12,000	Final completion	20132160	Acquired from Brown, J. K. Inc.
Jan 20, 1994	420207	Drill	Harris	Destec #1	10,700	—	20132349	Acquired from Amerada Hess Corporation
Jan 20, 1994	420207Amendment	Drill	Harris	Destec #1	10,700	Final completion	20132349	Acquired from Amerada Hess Corporation