Cahill Represents J.P. Morgan, BOA, and Greenwich Capital in Rule 144A by Chaparral Energy

January 18, 2007

Cahill represented J.P. Morgan Securities Inc., Banc of America Securities LLC and Greenwich Capital Markets, Inc. as Initial Purchasers in a Rule 144A/Regulation S Offering by Chaparral Energy, Inc. of $325,000,000 8-7/8 Senior Notes due 2017.