The First National Bank of Chicago One First National Plaza Chicago, Illinois 60670 Dated as of June 22, 1999 Petroleum Development Corporation 103 E. Main Street P.O. Box 26 Bridgeport, West Virginia 26330 Attention: Mr. Dale C. Rettinger Re: First...Credit Agreement • March 17th, 2000 • Petroleum Development Corp • Drilling oil & gas wells • Michigan
