OPERATORS · TEXAS · P-5 NUMBER 337106

Gruy Petroleum Management Co.

WindowAll time 90 days 1 year 3 years 10 years

CountyGray 258 Mitchell 96 Cooke 36 Roberts 33 Sutton 26 Cochran 26 Winkler 23 Wilbarger 18 Collingsworth 17 Fisher 17

TypeDrill 481 Recompletion 105 Reclass 4 Reenter 3 Field transfer 2

738 FILINGS · 661 PERMITS · PAGE 2 OF 15 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Feb 7, 2006	613757	Drill	Gray	Lewis #4051	3,200	—	17932549	—
Jan 20, 2006	612764	Drill	Gray	Hibler "A" #4	3,200	Final completion	17932548	Now Bce-Mach III LLC
Jan 20, 2006	612689	Drill	Gray	Moreman #4	3,200	Final completion	17932547	Now Bce-Mach III LLC
Jan 20, 2006	612688	Drill	Gray	Goldstone #4	3,200	Final completion	17932546	Now Bce-Mach III LLC
Jan 20, 2006	612687	Drill	Gray	Johnson "C" #2	3,200	—	17932545	—
Jan 18, 2006	612606	Drill	Gray	Dwyer #4	3,200	Spudded	17932544	Now Bce-Mach III LLC
Jan 18, 2006	612606Amendment	Drill	Gray	Dwyer #4	3,200	Final completion	17932544	Now Bce-Mach III LLC
Jan 17, 2006	612481	Drill	Reagan	Rocker B '18' #4	8,200	Final completion	38335695	Now Pioneer Natural Res. USA Inc.
Jan 17, 2006	612402	Drill	Gray	Willis "A" #4	3,200	Final completion	17932543	Now Bce-Mach III LLC
Jan 9, 2006	612073	Drill	Reagan	Rocker B '21' #2	8,200	Final completion	38335691	Now Pioneer Natural Res. USA Inc.
Jan 9, 2006	612071	Drill	Reagan	Rocker B '4' #125	8,200	Final completion	38335690	Now Pioneer Natural Res. USA Inc.
Jan 6, 2006	611983	Drill	Irion	Rocker B '15' #6	8,500	Final completion	23533945	Now Discovery Natural Resources LLC
Jan 6, 2006	611982	Drill	Irion	Rocker B '15' #5	8,500	Spudded	23533946	Now Discovery Natural Resources LLC
Jan 6, 2006	611982Amendment	Drill	Irion	Rocker B '15' #5	8,500	Final completion	23533946	Now Discovery Natural Resources LLC
Jan 6, 2006	611981	Drill	Reagan	Rocker B '12' #2	8,500	Spudded	38335687	Now Pioneer Natural Res. USA Inc.
Jan 6, 2006	611935	Drill	Gray	Yoes "A" #2	3,200	Final completion	17932542	Now Bce-Mach III LLC
Jan 6, 2006	611934	Drill	Gray	Yoes "A" #3	3,200	Final completion	17932541	Now Bce-Mach III LLC
Jan 6, 2006	611932	Drill	Gray	Yoes "A" #4	3,200	Spudded	17932540	Now Bce-Mach III LLC
Jan 6, 2006	611932Amendment	Drill	Gray	Yoes "A" #4	3,200	Final completion	17932540	Now Bce-Mach III LLC
Jan 6, 2006	611931	Drill	Gray	Johnson "C" #3	3,200	Spudded	17932539	Now Bce-Mach III LLC
Jan 6, 2006	611931Amendment	Drill	Gray	Johnson "C" #3	3,200	Final completion	17932539	Now Bce-Mach III LLC
Dec 30, 2005	611669	Drill	Roberts	Byrum #604	11,300	Final completion	39331785	Now Bce-Mach III LLC
Dec 30, 2005	611654	Drill	Roberts	Osborne #8035	10,600	Spudded	39331784	Now Bce-Mach III LLC
Dec 30, 2005	611654Amendment	Drill	Roberts	Osborne #8035	11,200	Final completion	39331784	Now Bce-Mach III LLC
Dec 30, 2005	611647	Drill	Roberts	Marion Osborne #1826	11,300	Final completion	39331783	Now Bce-Mach III LLC
Dec 29, 2005	611698	Field transfer	Pecos	Blackstone Slaughter 25 #1	10,248	Final completion	37136936	Now Cimarex Energy Co. of Colorado
Dec 29, 2005	611554	Drill	Roberts	Byrum #0606	11,300	Final completion	39331782	Now Bce-Mach III LLC
Dec 27, 2005	611486	Drill	Mitchell	Westbrook Southwest Unit #2015	3,600	Final completion	33534537	Now Grayrock Energy II LLC
Dec 22, 2005	611491	Drill	Mitchell	Westbrook Southwest Unit #128	3,600	Final completion	33534538	Now Grayrock Energy II LLC
Dec 22, 2005	611490	Drill	Mitchell	Westbrook Southwest Unit #218	3,600	Final completion	33534539	Now Grayrock Energy II LLC
Dec 22, 2005	611489	Drill	Mitchell	Westbrook Southwest Unit #236	3,600	Final completion	33534534	Now Grayrock Energy II LLC
Dec 22, 2005	611485	Drill	Mitchell	Westbrook Southwest Unit #451	3,600	Final completion	33534547	Now Grayrock Energy II LLC
Dec 22, 2005	611484	Drill	Mitchell	Westbrook Southwest Unit #450	3,600	Final completion	33534544	Now Grayrock Energy II LLC
Dec 22, 2005	611483	Drill	Mitchell	Westbrook Southwest Unit #449	3,600	Final completion	33534531	Now Grayrock Energy II LLC
Dec 22, 2005	611482	Drill	Mitchell	Westbrook Southwest Unit #448	3,600	Final completion	33534548	Now Grayrock Energy II LLC
Dec 22, 2005	611481	Drill	Mitchell	Westbrook Southwest Unit #2012	3,600	Final completion	33534546	Now Grayrock Energy II LLC
Dec 22, 2005	611480	Drill	Mitchell	Westbrook Southwest Unit #310	3,600	Final completion	33534543	Now Grayrock Energy II LLC
Dec 22, 2005	611479	Drill	Mitchell	Westbrook Southwest Unit #1111	3,600	Final completion	33534545	Now Grayrock Energy II LLC
Dec 22, 2005	611478	Drill	Mitchell	Westbrook Southwest Unit #39	3,600	Final completion	33534542	Now Grayrock Energy II LLC
Dec 22, 2005	611477	Drill	Mitchell	Westbrook Southwest Unit #38	3,600	Final completion	33534541	Now Grayrock Energy II LLC
Dec 22, 2005	611476	Drill	Mitchell	Westbrook Southwest Unit #37	3,600	Final completion	33534540	Now Grayrock Energy II LLC
Dec 22, 2005	611475	Drill	Mitchell	Westbrook Southwest Unit #137	3,600	Final completion	33534536	Now Grayrock Energy II LLC
Dec 22, 2005	611474	Drill	Mitchell	Westbrook Southwest Unit #131	3,600	Final completion	33534530	Now Grayrock Energy II LLC
Dec 22, 2005	611471	Drill	Mitchell	Westbrook Southwest Unit #133	3,600	Final completion	33534535	Now Grayrock Energy II LLC
Dec 22, 2005	611470	Drill	Mitchell	Westbrook Southwest Unit #126	3,600	Final completion	33534533	Now Grayrock Energy II LLC
Dec 22, 2005	611468	Drill	Mitchell	Westbrook Southwest Unit #125	3,600	Final completion	33534532	Now Grayrock Energy II LLC
Dec 9, 2005	610313	Drill	McMullen	Baker, Earl #13	12,750	Spudded	31133866	Now Rutherford Oil Corporation
Nov 30, 2005	610174	Drill	Roberts	Mother Bear #3028	10,500	Spudded	39331770	Now Bce-Mach III LLC
Nov 30, 2005	610174Amendment	Drill	Roberts	Mother Bear #3028	11,300	Final completion	39331770	Now Bce-Mach III LLC
Nov 30, 2005	610172	Drill	Roberts	Marion Osborne #1726	10,600	Final completion	39331768	Now Bce-Mach III LLC