OPERATORS · TEXAS · P-5 NUMBER 235945

Durango Resources Corp.

WindowAll time 90 days 1 year 3 years 10 years

CountyPecos 89 Nueces 22 Tom Green 14 Polk 8 Willacy 6 San Patricio 6 Bee 4 Victoria 3 Montgomery 1

153 FILINGS · 145 PERMITS · PAGE 2 OF 4 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Jul 17, 2007	640752	Drill	Nueces	Estell, Mary King #C 31	6,500	Final completion	35533858	Now Aransas Operating Company LLC
Jun 25, 2007	639072	Recompletion	Nueces	Estell, Mary King #A 14	5,390	Final completion	35530577	Now Aransas Operating Company LLC
Apr 27, 2007	636156	Drill	Pecos	Fort Stockton South Unit #2604	4,000	Final completion	37137900	Acquired from Apache Corporation
Apr 27, 2007	636155	Drill	Pecos	Fort Stockton South Unit #903	4,000	Final completion	37137899	Acquired from Apache Corporation
Apr 3, 2007	636068	Drill	Pecos	Fort Stockton South Unit #4807	4,000	Final completion	37137898	Acquired from Apache Corporation
Apr 3, 2007	636067	Drill	Pecos	Fort Stockton South Unit #4103	4,000	Final completion	37137897	Acquired from Apache Corporation
Apr 3, 2007	636066	Drill	Pecos	Fort Stockton South Unit #3509	4,000	Final completion	37137896	Acquired from Apache Corporation
Feb 26, 2007	633527	Recompletion	Pecos	Fort Stockton South Unit #2102	3,500	Final completion	37103422	Acquired from Apache Corporation
Feb 23, 2007	633536	Recompletion	Pecos	Fort Stockton South Unit #4011	3,500	—	37105057	Acquired from Apache Corporation
Feb 12, 2007	633317	Recompletion	Pecos	Fort Stockton South Unit #803	3,500	—	37104953	Acquired from Apache Corporation
Feb 7, 2007	632959	Recompletion	Pecos	Fort Stockton South Unit #1104	3,500	Final completion	37104864	Acquired from Apache Corporation
Feb 7, 2007	632956	Recompletion	Pecos	Fort Stockton South Unit #1101	3,500	Final completion	37104861	Acquired from Apache Corporation
Jan 26, 2007	632419	Recompletion	Pecos	Fort Stockton South Unit #1401	3,500	Final completion	37101130	Acquired from Apache Corporation
May 8, 2006	618840Amendment	Drill	Nueces	King, Richard #R 5	6,450	Final completion	35533796	Now Aransas Operating Company LLC
Apr 26, 2001	508225	Recompletion	Pecos	FT Stockton South Unit #1701	3,450	Final completion	37101135	Acquired from Apache Corporation
Sep 21, 2000	499674	Recompletion	Pecos	Ft. Stockton South Unit #2811	3,250	Final completion	37135647	Acquired from Apache Corporation
Jul 3, 2000	496772	Recompletion	Pecos	FT Stockton South Unit #4102W	3,300	Final completion	37104914	Acquired from Apache Corporation
Jul 3, 2000	496771	Recompletion	Pecos	FT Stockton South Unit #4301W	3,300	Final completion	37103371	Acquired from Apache Corporation
Apr 20, 2000	493750	Drill	San Patricio	Hutto #7	5,400	Final completion	40932625	Acquired from Goodrich Petroleum Company
Feb 16, 2000	491208	Recompletion	Pecos	FT Stockton South Unit #3904	3,250	Final completion	37105060	Acquired from Apache Corporation
Jan 21, 2000	491209	Recompletion	Pecos	FT Stockton South Unit #401	3,400	—	37104746	Acquired from Apache Corporation
Dec 10, 1999	488853	Drill	Pecos	Fort Stockton South Unit #3912	3,400	Final completion	37136959	Acquired from Apache Corporation
Dec 10, 1999	488851	Drill	Pecos	Fort Stockton South Unit #2903	3,400	Final completion	37136958	Acquired from Apache Corporation
Nov 16, 1999	489507	Recompletion	Pecos	FT Stockton South Unit #2603	3,300	Final completion	37135817	Acquired from Apache Corporation
Nov 16, 1999	489503	Recompletion	Pecos	FT Stockton South Unit #2701	3,300	Final completion	37104942	Acquired from Apache Corporation
Oct 27, 1999	488855	Drill	Pecos	Fort Stockton South Unit #4208R	3,400	Final completion	37136956	Acquired from Apache Corporation
Oct 27, 1999	488850	Drill	Pecos	Fort Stockton South Unit #2805R	3,400	Final completion	37136954	Acquired from Apache Corporation
Oct 6, 1999	486766	Recompletion	Pecos	Ft. Stockton South Unit #2808	3,350	Final completion	37105362	Acquired from Apache Corporation
Sep 15, 1999	486766Amendment	Recompletion	Pecos	Ft. Stockton South Unit #2808	3,350	Final completion	37105362	Acquired from Apache Corporation
Aug 27, 1999	486954	Drill	Bee	Wicker, E. H. #B 1	5,000	Final completion	02532969	Acquired from Welder-Heyer Energy, Inc.
Aug 6, 1999	486497	Recompletion	Pecos	Ft. Stockton South Unit #2807	3,250	—	37105361	Acquired from Apache Corporation
Aug 6, 1999	486497Amendment	Recompletion	Pecos	Ft. Stockton South Unit #2807	3,350	Final completion	37105361	Acquired from Apache Corporation
Aug 6, 1999	486496	Recompletion	Pecos	Ft. Stockton South Unit #3801W	3,250	—	37104883	Acquired from Apache Corporation
Aug 6, 1999	486496Amendment	Recompletion	Pecos	Ft. Stockton South Unit #3801W	3,350	—	37104883	Acquired from Apache Corporation
Aug 6, 1999	486461	Recompletion	Pecos	Ft. Stockton South Unit #3907W	3,250	—	37105053	Acquired from Apache Corporation
Aug 6, 1999	486461Amendment	Recompletion	Pecos	Ft. Stockton South Unit #3907W	3,350	Final completion	37105053	Acquired from Apache Corporation
Aug 4, 1999	486376	Recompletion	Pecos	Ft. Stockton South Unit #4202	3,250	—	37104875	Acquired from Apache Corporation
Aug 4, 1999	486376Amendment	Recompletion	Pecos	Ft. Stockton South Unit #4202	3,350	Final completion	37104875	Acquired from Apache Corporation
Aug 4, 1999	486375	Recompletion	Pecos	Ft. Stockton South Unit #4201W	3,250	—	37104874	Acquired from Apache Corporation
Aug 4, 1999	486375Amendment	Recompletion	Pecos	Ft. Stockton South Unit #4201W	3,350	Final completion	37104874	Acquired from Apache Corporation
Sep 14, 1998	478705	Recompletion	Polk	Kingsbury Co.holding Corporation #5	4,557	Final completion	37330440	Acquired from Synergy Oil & Gas, Inc. (A)
Aug 25, 1998	478971	Drill	Bee	Wicker, E. H. #1	5,100	Final completion	02532914	Acquired from Welder-Heyer Energy, Inc.
Aug 3, 1998	478374	Drill	Victoria	Pantel "B" G.U. #3	2,700	Final completion	46933357	Acquired from Marquee Corporation
Aug 3, 1998	478372	Drill	Victoria	Pantel "a" G.U. #1	3,450	Final completion	46933356	Acquired from Marquee Corporation
Jul 24, 1998	478200	Drill	Victoria	Pantel "B" G.U. #2	3,300	Final completion	46933354	Acquired from Marquee Corporation
Jun 17, 1998	477256	Recompletion	San Patricio	Hutto #3	5,200	Final completion	40931580	Acquired from Goodrich Petroleum Company
Jun 8, 1998	476122	Drill	San Patricio	Hutto #6H	6,550	Final completion	40932562	Acquired from Goodrich Petroleum Company
Dec 11, 1997	470302	Drill	Tom Green	Johnson, Willis #12	3,500	Final completion	45132391	Acquired from Cross Timbers Operating Company
Jul 3, 1997	464401	Drill	Bee	Barrow, Laura T. "B"-88 #32	5,600	Final completion	02532832	Acquired from Mueller Engineering Corp.
Mar 28, 1997	460457	Drill	San Patricio	Hutto #5	6,500	Final completion	40932519	Acquired from Goodrich Petroleum Company