OPERATORS · TEXAS · P-5 NUMBER 232883

Dune Operating Company

WindowAll time 90 days 1 year 3 years 10 years

CountyBrazoria 50 Colorado 36 Denton 22 Jackson 12 Wise 11 Victoria 7 Karnes 2 Galveston 1 Montague 1

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

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Oct 27, 2006	628132	Drill	Denton	D.C.C. #3	9,200	Spudded	12132986	Now Eagleridge Operating LLC
Sep 8, 2006	625642	Drill	Denton	Jones, Berniece #2	9,050	Final completion	12132953	Now Expro Engineering Inc.
Aug 14, 2006	624256	Drill	Wise	Pitts "A" #2	9,500	Final completion	49736100	Now Eagleridge Operating LLC
Aug 11, 2006	624228	Drill	Denton	D.C.C. #4	9,200	Final completion	12132929	Now Eagleridge Operating LLC
Aug 11, 2006	624207	Drill	Denton	D.C.C. #5	9,200	Final completion	12132928	Now Eagleridge Operating LLC
Jul 12, 2006	622436	Drill	Denton	Foster-McPeek #1	9,050	Final completion	12132897	Now Eagleridge Operating LLC
May 25, 2006	619848	Drill	Denton	Gertrude McPeek #2	9,050	Final completion	12132863	Now Eagleridge Operating LLC
Jan 30, 2006	613222	Drill	Victoria	Vaquero 'D' #4	13,000	Spudded	46933963	—
Jan 23, 2006	612591	Drill	Victoria	Vaquero 'C' #3	13,000	Spudded	46933959	—
Dec 21, 2005	611407	Drill	Victoria	Dune Energy Rob Welder #2	6,000	Spudded	46933954	—
Dec 21, 2005	611407Amendment	Drill	Victoria	Dune Energy Rob Welder "A" #2	6,000	Unperforated completion	46933954	—
Dec 21, 2005	611330	Drill	Victoria	Dune Energy Welder Heirs #2	4,000	Final completion	46933953	—
Mar 24, 2005	559506Amendment	Drill	Victoria	Vaquero "A" #2	17,000	Spudded	46933908	Now Proline Energy Resources Inc
Mar 1, 2005	558386	Recompletion	Jackson	K.R. Miller Unit No. 1 #1ST	8,850	—	23932683	Acquired from Hilcorp Energy Company
Mar 1, 2005	558386Amendment	Recompletion	Jackson	K.R. Miller Unit No. 1 #1ST	9,500	Final completion	23932683	Acquired from Hilcorp Energy Company
Sep 22, 2004	549799	Recompletion	Jackson	Tittizer, Louis Gas Unit No. 1 #2	9,100	Final completion	23932094	Acquired from Hilcorp Energy Company
Apr 15, 2004	544493Amendment	Other	Victoria	Welder, Rob Dune Energy #1	9,121	Spudded	46933829	Now Proline Energy Resources Inc
Nov 14, 2003	538308	Recompletion	Brazoria	Wilson, R. K. Gas UT 1 #6	13,300	Final completion	03932097	Acquired from Enervest Operating, L.L.C.
Jan 9, 2002	516709	Recompletion	Jackson	Novian, A. F. Gas Unit No. 1 #2	7,900	Final completion	23933072	Acquired from Hilcorp Energy Company
May 30, 2000	495593	Drill	Jackson	Novian, A. F. Gas Unit No. 1 #2	7,850	Final completion	23933072	Acquired from Hilcorp Energy Company
Jul 22, 1999	486023	Recompletion	Colorado	Hastedt, Emma 'B' #6	9,749	—	08900046	Acquired from Quintana Pet. Corp.
Oct 19, 1998	480227	Recompletion	Colorado	Cullen, H. R. et Al #8	8,934	Final completion	08931745	Acquired from Quintana Pet. Corp.
Oct 21, 1997	468980	Recompletion	Colorado	Hastedt, Emma "B" #10D	10,000	—	08930006	Acquired from Quintana Pet. Corp.
Oct 15, 1997	468770	Recompletion	Colorado	Hastedt, Emma "B" #10F	10,000	—	08930006	Acquired from Quintana Pet. Corp.
Oct 15, 1997	468770Amendment	Recompletion	Colorado	Hastedt, Emma "B" #10	10,000	Final completion	08930006	Acquired from Quintana Pet. Corp.
Oct 15, 1997	468770Amendment	Recompletion	Colorado	Hastedt, Emma "B" #10	10,000	—	08930006	Acquired from Quintana Pet. Corp.
Oct 7, 1997	468210	Recompletion	Colorado	Cullen, H. R. et Al #8	10,810	Final completion	08931745	Acquired from Quintana Pet. Corp.
Aug 6, 1997	465892	Recompletion	Brazoria	Wilson, R. F. Gas Unit No. 1 #6	11,300	Final completion	03932097	Acquired from Texaco E & P Inc.
May 15, 1997	462473	Recompletion	Brazoria	Wilson, R. K. Gas Unit No. 1 #9	12,552	—	03932495	Acquired from Texaco E & P Inc.
May 15, 1997	462473Amendment	Recompletion	Brazoria	R. K. Wilson Gas Unit No. 1 #9	12,552	Final completion	03932495	Acquired from Texaco E & P Inc.
Mar 18, 1997	460045	Recompletion	Brazoria	Wilson, R. K. Gas Unit No. 1 #6	13,300	Final completion	03932097	Acquired from Texaco E & P Inc.
Feb 3, 1997	458158	Recompletion	Brazoria	Wilson, R.K. Gas Unit No. 1 #8	12,900	Final completion	03932444	Acquired from Texaco E & P Inc.
Apr 19, 1996	447213	Recompletion	Brazoria	R. K. Wilson Gas Unit No. 1 #7	12,000	Final completion	03932405	Acquired from Texaco E & P Inc.
Oct 19, 1995	441072	Recompletion	Brazoria	Wilson, R.K. GU No. 1 #1	10,500	Final completion	03900987	Acquired from Texaco E & P Inc.
Oct 18, 1995	441032	Recompletion	Brazoria	Wilson, R.K. Gas Unit No. 1 #8	11,728	Final completion	03932444	Acquired from Texaco E & P Inc.
Jul 5, 1995	437350	Recompletion	Brazoria	Wieting, A.M. GS Unit O/A #17	9,150	Final completion	03900932	Acquired from Texaco E & P Inc.
Mar 3, 1995	433432	Recompletion	Brazoria	Wilson, R. K. -A- #2	9,500	—	03900995	Acquired from Texaco E & P Inc.
Aug 22, 1994	427204	Recompletion	Colorado	Emma Hastedt "B" #13UT	8,030	Final completion	08931743	Acquired from Quintana Pet. Corp.
May 12, 1994	423780	Recompletion	Brazoria	R. K. Wilson Gas Unit NO.1 #8	12,900	Final completion	03932444	Acquired from Texaco E & P Inc.
May 6, 1994	423571	Recompletion	Colorado	Hastedt, Emma #10F	10,000	—	08930006	Acquired from Quintana Pet. Corp.
Apr 12, 1994	422886	Recompletion	Brazoria	R. K. Wilson Gas Unit No. 1 #9	11,892	Final completion	03932495	Acquired from Texaco E & P Inc.
Dec 20, 1993	419109	Other	Jackson	K. R. Miller Unit No. 1 #M 1UP	9,200	Final completion	23932683	Acquired from Lower Colorado River Authority
Oct 28, 1993	415890	Recompletion	Colorado	Cullen, H. R. et Al #6	7,425	—	08900804	Acquired from Quintana Pet. Corp.
Oct 12, 1993	416819	Recompletion	Colorado	Cullen, H. R. et Al #8	10,140	Final completion	08931745	Acquired from Quintana Pet. Corp.
Aug 27, 1993	415385	Recompletion	Colorado	Hastedt, Emma #10F	10,000	—	08930006	Acquired from Cody Energy, Inc.
Aug 27, 1993	415385Amendment	Recompletion	Colorado	Hastedt, Emma #10F	10,000	Final completion	08930006	Acquired from Quintana Pet. Corp.
Jun 21, 1993	412251	Recompletion	Colorado	Cullen, H. R. et Al #6L	8,040	—	08900804	Acquired from Quintana Pet. Corp.
Jun 21, 1993	412251Amendment	Recompletion	Colorado	Cullen, H. R. et Al #6L	8,040	Final completion	08900804	Acquired from Quintana Pet. Corp.
May 19, 1993	411865	Drill	Brazoria	Wilson, R. K. G.u.no. 1 #9	15,000	Final completion	03932495	Acquired from Texaco E & P Inc.
Mar 10, 1993	409711	Drill	Jackson	Louis Tittizer Gas Unit #1A	9,200	Intermediate string casing	23932692	Acquired from Lower Colorado River Authority