OPERATORS · TEXAS · P-5 NUMBER 844081

Tesoro E&P Company, L.P.

WindowAll time 90 days 1 year 3 years 10 years

CountyHidalgo 28 Edwards 18 Zapata 17 Webb 15 Goliad 5 Live Oak 4 Anderson 4 Rusk 4 Starr 4 Val Verde 4

117 FILINGS · 100 PERMITS · PAGE 2 OF 3 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Mar 4, 1998	474039Amendment	Drill	Webb	Gonzalez, R. #9	12,500	Final completion	47936896	Now Hughes Dan A. Company L.P.
Feb 25, 1998	473807	Drill	Harrison	Durkee G. U. 1 #3	10,000	Final completion	20332500	Now T W Clemons Operating Co. LLC
Feb 24, 1998	473733	Drill	Rusk	Bertha Burton G. U. 1 #3	10,900	Final completion	40132849	Now Craton Operating LLC
Feb 17, 1998	473399	Drill	Hidalgo	La Blanca G.U. #45	9,500	Final completion	21532515	Now Green Exploration Company
Feb 11, 1998	473241	Drill	Zapata	Cuellar "A" #1	12,500	Plugged dry hole (P&A)	50533752	—
Feb 3, 1998	472886	Drill	Val Verde	Cole, B. J., B #1	12,500	Plugged dry hole (P&A)	46530574	—
Jan 28, 1998	472735	Drill	Edwards	Earwood Ranch B #2	9,500	Final completion	13731429	Now Hilcorp Energy Company
Jan 28, 1998	472734	Drill	Val Verde	Adobe Ranch "A" #1	14,000	—	46530573	—
Jan 28, 1998	472733	Drill	Edwards	Newby G. U. # 2 #1	10,000	Final completion	13731428	Now Hilcorp Energy Company
Jan 12, 1998	472076	Reenter	Anderson	Walton, E. C. #1	8,945	Plugged dry hole (P&A)	00100782	Now Texaco Inc.
Jan 9, 1998	472025	Recompletion	Anderson	Gragg, O. L. #2	10,110	Final completion	00100757	Now Trinity Gas Storage LLC
Dec 29, 1997	471644	Drill	Zapata	Lopez Mineral Trust G.U. #1	11,000	—	50533737	Now Devon Louisiana Corporation
Dec 29, 1997	471644Amendment	Drill	Zapata	Lopez Mineral Trust G.U. #1	11,500	Final completion	50533737	Now Devon Louisiana Corporation
Dec 29, 1997	471643	Drill	Hidalgo	Goldston #52	14,500	—	21532499	Now Proline Energy Resources Inc
Dec 29, 1997	471643Amendment	Drill	Hidalgo	Goldston #52	15,500	—	21532499	Now Proline Energy Resources Inc
Dec 29, 1997	471643Amendment	Drill	Hidalgo	Goldston #52	15,500	Final completion	21532499	Now Proline Energy Resources Inc
Dec 16, 1997	471304	Drill	Val Verde	Cole, B. J. "A" #1	13,000	Plugged dry hole (P&A)	46530571	—
Nov 3, 1997	469469	Drill	Hidalgo	Guerra, A. "B" #12H	11,500	Final completion	21532481	Now Orx Resources L.L.C.
Oct 28, 1997	469373	Drill	Webb	Gonzalez, R. #8	12,500	Final completion	47936799	Now Hughes Dan A. Company L.P.
Oct 21, 1997	469049	Drill	Val Verde	Lone Oak Ranch #1	15,000	Final completion	46530560	Now Patno Oil & Gas Company
Oct 8, 1997	468542	Drill	Hidalgo	Guerra, A. "B" #11	7,500	Plugged dry hole (P&A)	21532477	—
Sep 23, 1997	467935	Drill	Edwards	Newby Gas Unit 1 #1	9,800	Spudded	13731376	Now Hilcorp Energy Company
Sep 23, 1997	467935Amendment	Drill	Edwards	Newby Gas Unit 1 #1	10,100	Final completion	13731376	Now Hilcorp Energy Company
Sep 4, 1997	467131	Drill	Edwards	Earwood Ranch Gas Unit 2 #1	9,500	Final completion	13731364	Now Hilcorp Energy Company
Aug 12, 1997	466139	Drill	Zapata	Cuellar 277 #1	15,000	—	50533662	—
Aug 12, 1997	466139Amendment	Drill	Zapata	Cuellar 277 #1	15,000	Plugged dry hole (P&A)	50533662	—
Jun 25, 1997	464122	Drill	Hidalgo	Guerra, A. "B" #10	11,500	Unperforated completion	21532444	Now Orx Resources L.L.C.
Jun 24, 1997	464207	Drill	Hidalgo	Guerra A. "B" #8	11,500	Final completion	21532445	Now Orx Resources L.L.C.
Jun 23, 1997	464164	Drill	Starr	Guerra, A. "A" #11	7,500	—	42733014	Now Orx Resources L.L.C.
Jun 23, 1997	464164Amendment	Drill	Starr	Guerra, A. "A" #11	7,500	Final completion	42733014	Now Orx Resources L.L.C.
Jun 5, 1997	462844	Drill	Hidalgo	Goldston, W. L. #51	14,500	—	21532428	Now Newfield Exploration Company
Jun 5, 1997	462844Amendment	Drill	Hidalgo	Goldston, W. L. #51	16,000	—	21532428	Now Newfield Exploration Company
Jun 5, 1997	462844Amendment	Drill	Hidalgo	Goldston, W. L. #51	16,000	Final completion	21532428	Now Newfield Exploration Company
May 20, 1997	461375	Drill	Edwards	Earwood Ranch "A" #2	10,000	Final completion	13731319	Now Newfield Exploration Company
May 14, 1997	461897	Drill	Zapata	Cuellar Gas Unit #2771	14,000	Final completion	50533602	—
May 7, 1997	461898	Drill	Hidalgo	Guerra, A. "B" #9	7,500	Final completion	21532420	Now Orx Resources L.L.C.
May 2, 1997	461693	Recompletion	Goliad	Funk Gas Unit #1A	13,500	Final completion	17531765	Now Vaquero Operating
Apr 14, 1997	461008	Drill	Starr	Guerra, F.B. "B" #14	8,000	Unperforated completion	42732985	Now Orx Resources L.L.C.
Apr 11, 1997	460894	Drill	Goliad	Albrecht, W.D. #1	10,000	Plugged dry hole (P&A)	17532976	—
Dec 19, 1996	456394	Drill	Edwards	Earwood Ranch #2	10,000	Final completion	13731305	Now Hilcorp Energy Company
Nov 12, 1996	455006	Recompletion	Live Oak	Houdmann, Ike #1A	15,000	—	29734186	—
Nov 12, 1996	455006Amendment	Recompletion	Live Oak	Houdmann, Ike #1A	15,000	Final completion	29734186	—
Oct 8, 1996	453472	Drill	Webb	Longoria #3	11,000	Final completion	47936584	Now Chevron U. S. A. Inc.
Sep 11, 1996	452543	Drill	Webb	Gonzalez, Ruben #7	13,000	—	47936567	Now Hughes Dan A. Company L.P.
Sep 11, 1996	452543Amendment	Drill	Webb	Gonzalez, Ruben #7	12,165	—	47936567	Now Hughes Dan A. Company L.P.
Sep 11, 1996	452543Amendment	Drill	Webb	Gonzalez, Ruben #7	12,400	Final completion	47936567	Now Hughes Dan A. Company L.P.
Sep 6, 1996	452368	Drill	Goliad	Pittman #2	13,000	Final completion	17532940	Now Legend Natural Gas II LP
Sep 4, 1996	452095	Recompletion	Webb	Gonzalez, Elia #1	11,676	—	47933448	Now Newfield Exploration Company
Jul 17, 1996	450470	Drill	Edwards	Earwood Ranch #1	9,800	Final completion	13731280	Now Hilcorp Energy Company
Jul 17, 1996	450166	Recompletion	Webb	Gonzalez, Ruben #4	14,600	—	47934517	Now Hughes Dan A. Company L.P.