OPERATORS · TEXAS · P-5 NUMBER 517060

Lyon Operating Company Inc.(iii)

8 FILINGS · 7 PERMITS · PAGE 1 OF 1 · BY ISSUE DATE

IssuedPermitTypeCountyLease / wellDepthStatusAPIOperator change
Jul 7, 2008664661RecompletionClaySparkman -C- #16,470Final completion07782109Now Oakridge Oil and Gas LP
Sep 20, 2002523506RecompletionClayHill #16,600—07720364Now Oakridge Oil and Gas LP
Sep 22, 1998479498RecompletionYoungSewell #122,693—50335242Now Erwin Operating
Sep 22, 1998479498AmendmentRecompletionYoungSewell #122,693Final completion50335242Now Erwin Operating
Oct 11, 1995439265RecompletionYoungHazelton #23,695Final completion50336838Now Thunderbird Operating L.L.C.
Aug 28, 1995439264RecompletionClayOlsen #36,468—07720248—
Sep 19, 1994427774RecompletionClayScott, R- B #28,300Final completion07702256—
Aug 24, 1989362699RecompletionYoungGilmore #1DC4,615Final completion50337685—