CLOUD PEAK ENERGY INC.

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

1.01,1.02,2.01,2.03,3.02,3.03,5.02,5.03,9.01

8.01

Certification of termination of registration of a class of securities (Section 12(b))

1.03,9.01

Correspondence with the SEC

For applications for qualification of indentures under the Trust Indenture Act of 1939 (amendment)

7.01,9.01

Letter from the SEC

1.03,9.01

Notice of Effectiveness

For applications for qualification of indentures under the Trust Indenture Act of 1939

1.01,1.02,2.01,5.02,9.01

1.01,9.01

Post Effective Amendment to S-8

Post-effective amendment to a registration statement

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

General form for quarterly reports under Section 13 or 15(d)

1.03

1.01,1.03,9.01

1.01,9.01

General form for quarterly reports under Section 13 or 15(d)

1.01,9.01

1.01,9.01

1.01,9.01

1.01,9.01

1.01,9.01

1.01,7.01,9.01

1.01,9.01

Notification of late filing of Form 10-Q

7.01

1.01,9.01

1.01,1.03,2.03,7.01,8.01,9.01

General form for quarterly reports under Section 13 or 15(d)

Notification of removal from listing and/or registration on a national securities exchange

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Annual report pursuant to Section 13 or 15(d)

Letter from the SEC

Correspondence with the SEC

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Registration of Securities on Exchange

Correspondence with the SEC

Letter from the SEC

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Annual report pursuant to Section 13 or 15(d)

Notice of Effectiveness

Correspondence with the SEC

Letter from the SEC

Registration statement under Securities Act of 1933

General form for quarterly reports under Section 13 or 15(d)

Correspondence with the SEC

For applications for qualification of indentures under the Trust Indenture Act of 1939 (amendment)

Letter from the SEC

Letter from the SEC

For applications for qualification of indentures under the Trust Indenture Act of 1939

Correspondence with the SEC

Letter from the SEC

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Preliminary Proxy Statement

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

Shareholder Letter

Additional Information for Proxy Statement/ Votes

Annual Report Scanned (Paper)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Preliminary Proxy Statement

No description available

Letter from the SEC

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

MARSHALL COLIN

HILL HEATH A.

Clemetson Amy

MYERS TODD A

Carbone Kendall K

Pechersky Bryan J

Jones Bruce E

MARSHALL COLIN

Clemetson Amy

Jones Bruce E

Carbone Kendall K