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Cloud Peak Energy Inc. – ‘S-1/A’ on 10/2/09 – ‘EX-23.1’

On:  Friday, 10/2/09, at 8:35pm ET   ·   As of:  10/5/09   ·   Private-to-Public:  Document/Exhibit  –  Release Delayed   ·   Accession #:  1047469-9-8754   ·   File #:  333-161293

Previous ‘S-1’:  ‘S-1’ on 8/12/09   ·   Next:  ‘S-1/A’ on 10/26/09   ·   Latest:  ‘S-1/A’ on 12/13/10   ·   1 Reference:  By:  SEC – ‘UPLOAD’ on 10/19/09

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  As Of                Filer                Filing    For·On·As Docs:Size              Issuer               Agent

10/05/09  Cloud Peak Energy Inc.            S-1/A10/02/09    8:3.7M                                   Merrill Corp/New/FA

Pre-Effective Amendment to Registration Statement (General Form)   —   Form S-1
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: S-1/A       Pre-Effective Amendment to Registration Statement   HTML   2.27M 
                          (General Form)                                         
 8: COVER     ¶ Comment-Response or Cover Letter to the SEC         HTML      4K 
 2: EX-5.1      Opinion re: Legality                                HTML     14K 
 3: EX-23.1     Consent of Experts or Counsel                       HTML      8K 
 4: EX-23.2     Consent of Experts or Counsel                       HTML      8K 
 5: EX-24.2     Power of Attorney                                   HTML      8K 
 6: EX-24.3     Power of Attorney                                   HTML      8K 
 7: EX-24.4     Power of Attorney                                   HTML      8K 


‘EX-23.1’   —   Consent of Experts or Counsel
Exhibit Table of Contents

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11st Page  –  Filing Submission
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Exhibit 23.1


CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        We hereby consent to the use in this Registration Statement on Amendment No. 1 to Form S-1 of our reports dated August 12, 2009 relating to the financial statements of Rio Tinto Energy America Inc. and Subsidiaries and Cloud Peak Energy Inc. which appear in such Registration Statement. We also consent to the reference to us under the heading "Experts" in such Registration Statement.

/s/ PricewaterhouseCoopers LLP
Denver, Colorado
October 2, 2009


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CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Dates Referenced Herein   and   Documents Incorporated by Reference

This ‘S-1/A’ Filing    Date    Other Filings
Filed as of:10/5/09
Filed on:10/2/09CORRESP
8/12/09RW,  S-1
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1 Subsequent Filing that References this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

10/19/09  SEC                               UPLOAD10/03/17    1:54K  Cloud Peak Energy Inc.
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Filing Submission 0001047469-09-008754   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

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