OPERATORS · RRC 532988

Mastodon Operating Company, LLC

WindowAll time 90 days 1 year 3 years 10 years

CountyFort Bend 4 DE Witt 2 Austin 1

Type

7 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

Issued	Permit	Type	County	Lease / well	Depth	Status	API	Operator change
Nov 5, 2004	553256	Recompletion	DE Witt	Atoka-Gohlke #1	10,050	Final completion	12331286	Acquired from Ness Operating of Texas, Inc.
Oct 5, 1998	479599	Drill	Austin	F. Bollinger G. U. #1	5,000	Final completion	01530718	Acquired from Costilla Energy, Inc.
Mar 14, 1984	232379	Drill	Fort Bend	Grigar - A #1	8,700	Final completion	15731527	Acquired from Partners Oil Company
Dec 31, 1982	184007	Drill	DE Witt	Gohlke, Leeroy #1	10,200	—	12331286	Acquired from Atoka Energy Corporation
Sep 10, 1982	172335	Drill	Fort Bend	Buckalew #2	9,100	Final completion	15731374	Acquired from Daniel Oil Co.
Jul 14, 1982	166205	Drill	Fort Bend	Alma Buckalew Oil Unit #1	8,803	Final completion	15731356	Acquired from Daniel Oil Co.
Dec 31, 1981	148161	Drill	Fort Bend	Losack #1	9,200	Final completion	15731291	Acquired from Partners Oil Company