Press Release

Chaparral Energy

Chaparral Energy Schedules Second Quarter Earnings Conference Call

Oklahoma City, August 3, 2015 — Chaparral Energy, Inc. will hold its second quarter financial and operating results conference call on Wednesday, August 12, at 9 a.m. Central. The call will follow the company’s August 12 Form 10-Q filing. To review results before the call, a copy of the 10-Q will be available on the Investor section of the company’s website at chaparralenergy.com/investors or the Securities and Exchange Commission’s website at sec.gov.

Interested parties may access the call toll-free at 888-461-2024 and ask for the Chaparral Energy conference call 10 minutes prior to the start time. The conference ID number is 8037693.

In addition, a live webcast of the call will be available through the Investor section of the company’s website. For those who cannot listen to the live call, a telephonic replay will be available through Wednesday, August 26, by calling 888-203-1112. The replay passcode is 8037693. An archive of the call will also be available shortly after its conclusion on the Investor section of the company’s website.