X0306 4 2019-03-29 0 0001346980 Chaparral Energy, Inc. CHAP 0001747232 Reynolds Kermit Earl 701 CEDAR LAKE BLVD OKLAHOMA CITY OK 73114 1 1 0 0 Chief Executive Officer Class A Common Stock 2019-03-29 4 P 0 7100 5.6388 A 446057 D Represents a weighted average purchase price for the shares of Class A Common Stock - the high price was $5.7000 and the low price was $5.5100. The holder undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. /s/ Dasha K. Hodge, Attorney-in-Fact 2019-04-02