OPERATORS · TEXAS · P-5 NUMBER 677885

Primrose Operating Company

WindowAll time 90 days 1 year 3 years 10 years

TypeDrill 233 Recompletion 37 Reenter 2 Field transfer 2

57 PERMITS · PAGE 1 OF 2 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
May 17, 2005	600765	Recompletion	Refugio	O'Connor, Thomas #8	5,590	—	39132572	Now Dorchester Operating Company LLC
Feb 15, 2005	557758	Recompletion	Refugio	Obrien, J. M. #109	4,400	—	39132512	Now Acock/Anaqua Operating Co. LP
Feb 15, 2005	557758	Recompletion	Refugio	Obrien, J. M. #109	5,755	Spudded	39132512	Now Acock/Anaqua Operating Co. LP
Feb 15, 2005	557758	Recompletion	Refugio	O'Brien, J. M. #109	5,755	Final completion	39132512	Now Acock/Anaqua Operating Co. LP
Feb 4, 2005	557281	Drill	Refugio	Heard, F.V.W. #36	7,000	—	39132653	—
Oct 27, 2004	552913	Recompletion	Refugio	Heard, F. V. W. #37	6,300	Final completion	39132595	Now Dorchester Operating Company LLC
Oct 11, 2004	552120	Recompletion	Refugio	Heard Fannie V W #29	4,505	Final completion	39131758	Now Acock/Anaqua Operating Co. LP
Jun 10, 2004	546671	Drill	Refugio	Heard, F.V.W. #37	6,300	Spudded	39132595	Now Dorchester Operating Company LLC
Jun 10, 2004	546671	Drill	Refugio	Heard, F.V.W. #37	6,300	Final completion	39132595	Now Dorchester Operating Company LLC
Mar 3, 2004	542776	Drill	Refugio	O'Connor, Thomas #8	9,000	Spudded	39132572	Now Dorchester Operating Company LLC
Mar 3, 2004	542776	Drill	Refugio	O'Connor, Thomas #8	9,000	Final completion	39132572	Now Dorchester Operating Company LLC
Aug 18, 2003	535469	Recompletion	Refugio	O'Connor, Thomas #7	6,300	—	39131731	—
Jul 21, 2003	534423	Recompletion	Refugio	F. V. W. Heard #17	5,300	—	39100836	Now Dorchester Operating Company LLC
Jul 21, 2003	534423	Recompletion	Refugio	F. V. W. Heard #17	5,300	Final completion	39100836	Now Dorchester Operating Company LLC
May 13, 2003	531231	Drill	Refugio	O'Brien, J. M. #109	7,000	Final completion	39132512	Now Acock/Anaqua Operating Co. LP
Apr 28, 2003	531230	Drill	Refugio	Heard, F. V. W. #35	8,500	—	39132511	Now Dorchester Operating Company LLC
Apr 28, 2003	531230	Drill	Refugio	Heard, F. V. W. #35	8,500	—	39132511	Now Dorchester Operating Company LLC
Apr 28, 2003	531230	Drill	Refugio	Heard, F. V. W. #35	8,500	Final completion	39132511	Now Dorchester Operating Company LLC
Feb 26, 2003	528878	Recompletion	Refugio	Heard, Fannie V.W. #24	4,450	—	39130390	Now Dorchester Operating Company LLC
Sep 24, 2002	524011	Recompletion	Refugio	Heard, Fannie V. W. #29	6,500	—	39131758	Now Acock/Anaqua Operating Co. LP
Jul 16, 2002	521918	Drill	Refugio	Heard, Fannie V. W. #34	6,500	—	39132478	Now Dorchester Operating Company LLC
Jul 16, 2002	521918	Drill	Refugio	Heard, Fannie V. W. #34	6,500	—	39132478	Now Dorchester Operating Company LLC
Jul 16, 2002	521918	Drill	Refugio	Heard, Fannie V. W. #34	8,500	Spudded	39132478	Now Dorchester Operating Company LLC
Jul 16, 2002	521918	Drill	Refugio	Heard, Fannie V. W. #34	8,500	Final completion	39132478	Now Dorchester Operating Company LLC
Apr 24, 2002	519412	Recompletion	Refugio	O'Brien, J. M. "B" #214	5,600	Final completion	39131910	Now Dorchester Operating Company LLC
Mar 19, 2002	518262	Recompletion	Refugio	Heard, J. F. B. #27	4,500	—	39131756	Now Dorchester Operating Company LLC
Mar 18, 2002	518259	Recompletion	Refugio	O'Brien, J. M. #302	4,500	—	39101027	Now Dorchester Operating Company LLC
Mar 14, 2002	518261	Recompletion	Refugio	Heard, F. V. W. #13	4,500	—	39100797	Now Dorchester Operating Company LLC
Mar 14, 2002	518260	Recompletion	Refugio	Heard, F. V. W. #22	4,500	—	39130183	Now Dorchester Operating Company LLC
Mar 14, 2002	518258	Recompletion	Refugio	O'Brien, J. M. #308	4,500	—	39130209	Now Dorchester Operating Company LLC
Mar 9, 2001	505142	Recompletion	Refugio	O'Connor, Thomas #7	4,500	Final completion	39131731	Acquired from Dewbre Petroleum Corporation
Aug 2, 1994	426532	Recompletion	Refugio	O'Brien, J.M. "B" #213	4,200	Unsuccessful workover	39131848	Acquired from Exxon Corp.
Aug 2, 1994	426531	Recompletion	Refugio	O'Brien, J.M. "B" #212	4,188	Final completion	39131186	Acquired from Exxon Corp.
Sep 27, 1993	415345	Recompletion	Refugio	O'Brien, J. M. "A" #103	2,796	Final completion	39131338	Acquired from Exxon Corp.
May 18, 1990	373355	Recompletion	Refugio	O'Brien, J.M. "B" #213	5,355	—	39131848	Acquired from Exxon Corp.
Aug 9, 1989	360691	Recompletion	Refugio	O'Brien, J. M. "B" #212	4,597	—	39131186	Acquired from Exxon Corp.
Jun 26, 1989	359678	Recompletion	Refugio	O'Brien, J. M. "A" #103	4,215	Final completion	39131338	Acquired from Exxon Corp.
Oct 1, 1985	286214	Recompletion	Refugio	O'Connor, Tom #5	6,030	—	39120023	Acquired from Sun Expl. & Prod. Co.-Corpus
Jun 12, 1985	278013	Recompletion	Refugio	O'Brien, J. M. 'A' #103	4,215	Final completion	39131338	Acquired from Exxon Corp.
Apr 23, 1985	273074	Drill	Refugio	O'Brien, J. M. "B" #213	6,350	Long string casing	39131848	Acquired from Exxon Corp.
Jul 12, 1984	247079	Drill	Refugio	O'Connor, Thomas #7	4,700	Final completion	39131731	Acquired from Sun Expl. & Prod. Co.-Corpus
May 24, 1984	239931	Recompletion	Refugio	Heard, J. F. B. #4	4,386	Final completion	39131490	Acquired from Exxon Corp.
Apr 16, 1984	235673	Recompletion	Refugio	O'Brien, J. M. #53	4,700	Unsuccessful workover	39101056	Acquired from Sun Expl. & Prod. Co.-Corpus
Oct 19, 1983	219530	Recompletion	Refugio	Heard, J.F.B. #4	4,386	—	39131490	Acquired from Exxon Corp.
Mar 10, 1983	191462	Recompletion	Refugio	O'Connor, Thomas #5E	3,232	—	39120023	Acquired from Sun Expl. & Prod. Co.-Houston
Feb 9, 1982	150220	Recompletion	Refugio	O'Brien, J.M. #57	1,650	Final completion	39131358	Acquired from Sun Exploration & Production Co.
Jun 5, 1981	121708	Drill	Refugio	Heard, J. F. B. #4	4,400	—	39131490	Acquired from Exxon Corp.
Jun 5, 1981	120204	Other	Refugio	Heard, J.F.B. #4	4,400	Final completion	39131490	Acquired from Exxon Corp.
Jul 16, 1980	88455	Recompletion	Refugio	O'Brien, J. M. "A" #8	940	Final completion	39131357	Acquired from Sun Expl. & Prod. Co.-Houston
Mar 4, 1980	79610	Drill	Refugio	O'Brien, J. M. "A" #103	4,450	Long string casing	39131338	Acquired from Exxon Corp.