OPERATORS · TEXAS · P-5 NUMBER 920480

Whiting Petroleum Corporation

CountyLeon 1

1 PERMIT · PAGE 1 OF 1 · BY ISSUE DATE

IssuedPermitTypeCountyLease / wellDepthStatusAPIOperator change
Oct 14, 2002524546ReenterLeonVann Unit #3H15,425—28931247Now STS Petroleum LLC