OPERATORS · TEXAS · P-5 NUMBER 72682

Black River Operating LLC

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101 FILINGS · 89 PERMITS · PAGE 2 OF 3 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Mar 23, 2000	493345	Drill	Sterling	Herrell East Queen Sand Unit #311WI	2,600	Final completion	43132987	Acquired from Marathon Oil Company
Mar 23, 2000	493344	Drill	Sterling	Herrell East Queen Sand Unit #310WI	2,600	Final completion	43132986	Acquired from Marathon Oil Company
Oct 14, 1999	488494	Recompletion	Sterling	Herrell East Queen Sand Unit #308	2,600	Final completion	43132816	Acquired from Marathon Oil Company
Dec 11, 1997	471090	Drill	Sterling	Herrell East Queen Sand Unit #505	2,600	Final completion	43132913	Acquired from Marathon Oil Company
Dec 11, 1997	471089	Drill	Sterling	Herrell East Queen Sand Unit #405	2,600	Final completion	43132910	Acquired from Marathon Oil Company
Dec 11, 1997	471088	Drill	Sterling	Herrell East Queen Sand Unit #404	2,600	Final completion	43132911	Acquired from Marathon Oil Company
Dec 11, 1997	471087	Drill	Sterling	Herrell East Queen Sand Unit #504	2,600	Final completion	43132912	Acquired from Marathon Oil Company
Mar 13, 1996	444792	Drill	Sterling	TXL "C" #20	3,300	Final completion	43132819	Acquired from Marathon Oil Company
Feb 14, 1996	444798	Drill	Sterling	Glass, J. L. Estate "B" #4	2,600	Final completion	43132814	Acquired from Marathon Oil Company
Feb 14, 1996	444797	Drill	Sterling	TXL "D" #9	3,300	Final completion	43132815	Acquired from Marathon Oil Company
Feb 14, 1996	444796	Drill	Sterling	TXL "D" #8	3,300	Final completion	43132816	Acquired from Marathon Oil Company
Feb 14, 1996	444795	Drill	Sterling	TXL "C" #22	3,300	—	43132817	Acquired from Marathon Oil Company
Feb 14, 1996	444795Amendment	Drill	Sterling	TXL "C" #22	5,100	Final completion	43132817	Acquired from Marathon Oil Company
Feb 14, 1996	444793	Drill	Sterling	Herrell East Queen Sand Unit #403	1,540	Final completion	43132818	Acquired from Marathon Oil Company
Jan 30, 1995	431924	Reclass	Sterling	Herrell, East (Queen Sand) Unit #214	1,714	Final completion	43131796	Acquired from Marathon Oil Company
Sep 19, 1994	428065	Drill	Sterling	Glass, Roy -A- #6	1,500	Final completion	43132773	Acquired from Southwest Royalties, Inc.
Aug 1, 1994	426469	Drill	Sterling	Herrell East Queen Sand Unit #221W	1,800	Final completion	43132767	Acquired from Marathon Oil Company
Aug 1, 1994	426468	Drill	Sterling	Herrell East Queen Sand Unit #220W	1,800	Final completion	43132766	Acquired from Marathon Oil Company
Aug 1, 1994	426466	Drill	Sterling	Herrell East Queen Sand Unit #119W	1,800	Final completion	43132765	Acquired from Marathon Oil Company
Aug 1, 1994	426465	Drill	Sterling	Herrell East Queen Sand Unit #118W	1,800	Final completion	43132764	Acquired from Marathon Oil Company
Aug 1, 1994	426464	Drill	Sterling	Herrell East Queen Sand Unit #117W	1,800	Final completion	43132763	Acquired from Marathon Oil Company
Aug 1, 1994	426462	Drill	Sterling	Herrell East Queen Sand Unit #116W	1,800	Final completion	43132762	Acquired from Marathon Oil Company
Aug 1, 1994	426461	Drill	Sterling	Herrell East Queen Sand Unit #115W	1,800	Final completion	43132761	Acquired from Marathon Oil Company
Jul 19, 1994	425932	Drill	Sterling	Glass, Roy, -A- #5	1,500	Final completion	43132760	Acquired from Southwest Royalties, Inc.
Jul 5, 1994	424626	Recompletion	Sterling	TXL "C" #9	1,600	—	43110056	Acquired from Marathon Oil Company
Apr 1, 1994	422641	Recompletion	Sterling	Ray, Jennie #2	1,420	Final completion	43110123	Acquired from Southwest Royalties, Inc.
Mar 28, 1994	422524	Drill	Sterling	Herrell East Queen Sand Unit #114 W	1,800	Final completion	43132741	Acquired from Marathon Oil Company
Jul 20, 1993	414051	Drill	Sterling	Herrell East Queen Sand Unit #218W	1,800	Final completion	43132692	Acquired from Marathon Oil Company
Jul 20, 1993	414050	Drill	Sterling	Herrell East Queen Sand Unit #307W	1,800	Final completion	43132691	Acquired from Marathon Oil Company
Jul 20, 1993	414049	Drill	Sterling	Herrell East Queen Sand Unit #219W	1,800	Final completion	43132690	Acquired from Marathon Oil Company
May 20, 1992	399347	Drill	Sterling	Herrell East Queen Sand Unit #217W	1,800	Final completion	43132406	Acquired from Marathon Oil Company
Feb 2, 1988	341068	Drill	Sterling	TXL #16	1,700	Final completion	43131909	Acquired from Beach Exploration, Inc.
Feb 1, 1988	341999	Drill	Sterling	TXL #14	1,600	Final completion	43131914	Acquired from Beach Exploration, Inc.
Feb 1, 1988	341998	Drill	Sterling	TXL #13	1,600	Final completion	43131913	Acquired from Beach Exploration, Inc.
Feb 1, 1988	341997	Drill	Sterling	TXL #12	1,600	Final completion	43131912	Acquired from Beach Exploration, Inc.
Jul 1, 1987	332376	Drill	Sterling	Herrell, East (Queen Sand) Unit #112	2,413	Final completion	43131856	Acquired from Marathon Oil Company
Jul 1, 1987	332369	Drill	Sterling	Herrell, East (Queen Sand ) Unit #113	2,592	Final completion	43131855	Acquired from Marathon Oil Company
Nov 10, 1986	322934	Drill	Sterling	Herrell, East (Queen Sand) Unit #216	1,604	Final completion	43131834	Acquired from Marathon Oil Company
Apr 16, 1986	301113	Drill	Sterling	Herrell, East (Queen Sand) Unit #215	1,551	Final completion	43131811	Acquired from Marathon Oil Company
Apr 16, 1986	301109	Drill	Sterling	Herrell, East (Queen Sand) Unit #212	1,672	Final completion	43131810	Acquired from Marathon Oil Company
Apr 15, 1986	301117	Drill	Sterling	Herrell, East (Queen Sand) Unit #110	1,666	Final completion	43131812	Acquired from Marathon Oil Company
Feb 14, 1986	297749	Drill	Sterling	Herrell, East (Queen Sand) Unit #109	1,540	Final completion	43131792	Acquired from Marathon Oil Company
Feb 14, 1986	297752	Drill	Sterling	Herrell, East (Queen Sand) Unit #111	1,491	Final completion	43131793	Acquired from Marathon Oil Company
Feb 14, 1986	297756	Drill	Sterling	Herrell, East (Queen Sand) Unit #213	1,562	Final completion	43131795	Acquired from Marathon Oil Company
Feb 14, 1986	297759	Drill	Sterling	Herrell, East (Queen Sand) Unit #214	1,657	Final completion	43131796	Acquired from Marathon Oil Company
Feb 14, 1986	297760	Drill	Sterling	Herrell, East (Queen Sand) Unit #108	1,610	Final completion	43131797	Acquired from Marathon Oil Company
Feb 14, 1986	297753	Drill	Sterling	Herrell, East (Queen Sand)unit #WS1	2,400	Final completion	43131794	Acquired from Marathon Oil Company
Jun 17, 1983	199571	Recompletion	Sterling	TXL "C" #1	2,445	Final completion	43100148	Acquired from Marathon Oil Company
Nov 9, 1982	176965	Drill	Sterling	TXL #15	2,700	Final completion	43131248	Acquired from Enoc Petroleum Company
Oct 2, 1980	94521	Drill	Sterling	TXL -D- #6	1,580	Final completion	43130909	Acquired from Marathon Oil Company