OPERATORS · RRC 125948

Calpine Natural Gas Co

WindowAll time 90 days 1 year 3 years 10 years

CountyWebb 16 Live Oak 9 Victoria 8 Lavaca 4 Matagorda 4 Cameron 4 Goliad 2 Panola 1 Brazoria 1

TypeDrill 21 Recompletion 5 Field transfer 1

49 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Jan 23, 2002	517048	Drill	Webb	Gill, F. J. #17	11,000	Final completion	47938031	Now Arete Operating Company LLC
Jan 23, 2002	517047	Drill	Webb	Gill, F. J. #19	11,000	Plugged dry hole (P&A)	47938030	—
Jan 23, 2002	517046	Drill	Webb	Mayers #10	11,000	Final completion	47938029	—
Jan 17, 2002	516903	Drill	Webb	Mayers #7	11,400	Final completion	47938027	Now Arete Operating Company LLC
Jan 8, 2002	516672	Drill	Webb	G. & F. Ramirez Gas Unit #7	11,000	Final completion	47938019	Now Arete Operating Company III LLC
Dec 18, 2001	516260	Drill	Webb	Pena, H. L. #8	10,500	—	47938005	Now Calpine Natural Gas L.P.
Dec 18, 2001	516260	Drill	Webb	Pena, H. L. #8	10,500	—	47938005	Now Calpine Natural Gas L.P.
Dec 18, 2001	516260	Drill	Webb	Pena, H. L. #8	10,500	Final completion	47938005	Now Calpine Natural Gas L.P.
Dec 17, 2001	516091	Field transfer	Webb	Lundell Ranch #3	11,518	Final completion	47933816	Now Graham Royalty Ltd.
Dec 7, 2001	515948	Drill	Webb	Bruni-Summers #22	12,500	Final completion	47937997	Now Arete Operating Company III LLC
Oct 2, 2001	514068	Recompletion	Live Oak	Block 86 Unit #4	8,290	Final completion	29734042	Now Parker & Parsley Development L.P
Sep 26, 2001	513954	Drill	Webb	GJM Gas Unit I #2	10,850	Final completion	47937951	Now Arete Operating Company III LLC
Sep 18, 2001	513064	Recompletion	Brazoria	Lockhart Bank Unit 1 #4	9,640	Final completion	03931826	—
Sep 5, 2001	513193	Recompletion	Webb	Hubberd "E" #1	8,750	Final completion	47932621	Now Rosetta Resources Operating LP
Aug 20, 2001	512686	Recompletion	Panola	West Clayton Gas Unit #1	8,600	Final completion	36531391	Now M. E. Operating & Services Inc.
Aug 13, 2001	512526	Drill	Matagorda	St 449 #1	9,000	Plugged dry hole (P&A)	32131901	—
Jul 18, 2001	511572	Drill	Webb	Lundell Ranch #10	12,000	Final completion	47937885	Now Hilcorp Energy Company
Jun 25, 2001	510631	Drill	Matagorda	Hamill & Hamill #20	8,000	Plugged dry hole (P&A)	32131891	—
Jun 7, 2001	509997	Drill	Webb	Lundell Ranch #9	12,000	Final completion	47937845	—
Jun 1, 2001	509714	Drill	Matagorda	Hamill & Hamill #19	13,000	Spudded	32131887	—
Jun 1, 2001	509714	Drill	Matagorda	Hamill & Hamill #19	9,486	Final completion	32131887	—
May 25, 2001	509418	Drill	Webb	Lundell Ranch #8R	11,200	Final completion	47937830	Now Hilcorp Energy Company
May 16, 2001	509076	Recompletion	Lavaca	Costellow #1	3,000	—	28532821	—
May 8, 2001	508671	Drill	Webb	Lundell Ranch #8	11,200	Unperforated completion	47937806	Now Apache Corporation
Feb 27, 2001	505795	Drill	Lavaca	Hermes, Ervin #1	5,200	Plugged dry hole (P&A)	28532859	—
Jan 19, 2001	504229	Drill	Lavaca	Costellow #2	6,000	Spudded	28532848	—
Sep 21, 2000	499838	Drill	Lavaca	Costellow #1	6,000	Final completion	28532821	—
Feb 1, 2000	491605	Recompletion	Live Oak	Block 86 Unit #3	8,250	Final completion	29732187	Acquired from Sheridan Energy,inc.
May 12, 1999	484438	Recompletion	Live Oak	Block 86 Unit #3	7,330	Final completion	29732187	Acquired from Sheridan Energy,inc.
Mar 9, 1999	483163	Recompletion	Live Oak	Block 86 Unit #2	7,600	Final completion	29730529	Acquired from Sheridan Energy,inc.
Nov 16, 1998	480343	Recompletion	Live Oak	Block 86 Unit #2	7,950	Final completion	29730529	Acquired from Sheridan Energy,inc.
May 18, 1998	476290	Recompletion	Live Oak	Block 86 Unit #3	8,450	Final completion	29732187	Acquired from Sheridan Energy,inc.
Feb 24, 1998	473561	Recompletion	Cameron	Lerman G. U. 2 #1	8,950	—	06130481	Acquired from Sheridan Energy,inc.
Feb 24, 1998	473561	Recompletion	Cameron	Lerma G. U. 2 #1	8,580	Final completion	06130481	Acquired from Sheridan Energy,inc.
Mar 3, 1993	409442	Drill	Victoria	R. C. Scherer G. U. #2	8,000	—	46932961	Acquired from Bridge Oil Production Co., Inc.
Mar 3, 1993	409442	Drill	Victoria	R. C. Scherer G. U. #2	9,500	—	46932961	Acquired from Bridge Oil Production Co., Inc.
Mar 3, 1993	409442	Drill	Victoria	R. C. Scherer G. U. #2	9,500	Final completion	46932961	Acquired from Bridge Oil Production Co., Inc.
Nov 27, 1991	394514	Drill	Goliad	Connor Ranch G. U. 1 #2	1,600	Final completion	17532636	Acquired from Bridge Oil Production Co., Inc.
Apr 23, 1991	387087	Drill	Goliad	O'Connor Ranch Gas Unit #1	4,300	Final completion	17532604	Acquired from Bridge Oil Production Co., Inc.
Feb 7, 1991	385304	Drill	Cameron	Lerma G. U. 2 #1	9,700	—	06130481	Acquired from Bridge Oil Company, L. P.
Feb 7, 1991	385304	Drill	Cameron	Lerma G. U. 2 #1	9,700	Final completion	06130481	Acquired from Bridge Oil Company, L. P.
Mar 12, 1990	370604	Drill	Victoria	Zdansky Unit #1	9,500	Final completion	46932737	Acquired from Bridge Oil Company, L. P.
Mar 12, 1990	370604	Drill	Victoria	Zdansky Unit #1	8,800	—	46932737	Acquired from Bridge Oil Company, L. P.
Sep 17, 1987	335861	Recompletion	Live Oak	Block 86 Unit #3	8,450	—	29732187	Acquired from Mobil Producing TX. & N.M. Inc.
Sep 17, 1987	335861	Recompletion	Live Oak	Block 86 Unit #3	8,450	Final completion	29732187	Acquired from Mobil Producing TX. & N.M. Inc.
Jul 29, 1986	304765	Recompletion	Victoria	Nelson Gas Unit "H" #1	10,100	Final completion	46932336	Acquired from TXO Production Corp.
Dec 11, 1984	260889	Drill	Victoria	Nelson Gas Unit "H" #1	10,500	Final completion	46932336	Acquired from TXO Production Corp.
Aug 27, 1984	249538	Drill	Victoria	Scherer #1A	10,000	Final completion	46932284	Acquired from TXO Production Corp.
Feb 6, 1980	71929	Drill	Live Oak	Block 86 Unit #3	8,500	Final completion	29732187	Acquired from Mobil Producing TX. & N.M. Inc.