Chairman

James W. Boyd

February 16, 2015

President and CEO

File: 3084.014

John T. Boyd II

Cloud Peak Energy Inc.

Managing Director and COO

505 South Gillette Avenue

Ronald L. Lewis

Gillette, WY 82716-4203

Vice Presidents

Attention:

Mr. John Trummel

Richard L. Bate

Manager Geology Services

Robert J. Farmer

James F. Kvitkovich

Russell P. Moran

Subject:

Consent of John T. Boyd Company

Donald S. Swartz

John L. Weiss

Michael F. Wick

Dear Sirs:

William P. Wolf

We hereby consent to the use by Cloud Peak Energy Inc. (the “Company”) in connection with its annual report on Form 10-K for the year ended December 31, 2014 (“Form 10-K”), and any amendments thereto, and to the incorporation by reference in the Company’s registration statement on Form S-3 (333-199177) and in the Company’s registration statements on Form S-8 (333-163295, 333-175311 and 333-175312), of information contained in our report dated January 22, 2015, addressed to the Company, relating to certain coal reserves and resources information for the Company’s Powder River Basin properties including setting forth the estimates of the Company’s coal reserves in the Form 10-K. We also consent to the reference to John T. Boyd Company in those filings and any amendments thereto.

Managing Director - Australia

Ian L. Alexander

Managing Director - China

Jisheng (Jason) Han

Managing Director – South America

Carlos F. Barrera

Assistant to the President

Mark P. Davic

Respectfully submitted,

Pittsburgh

JOHN T. BOYD COMPANY

4000 Town Center Boulevard, Suite 300

By:

/s/ Ronald L. Lewis

Canonsburg, PA 15317

Ronald L. Lewis

(724) 873-4400

Managing Director and COO

(724) 873-4401 Fax

[email protected]

Denver

(303) 293-8988

[email protected]

Brisbane

61 7 3232-5000

[email protected]

Beijing

86 10 6500-5854

[email protected]

Bogota

+57-3115382113

[email protected]

www.jtboyd.com