Rio Tinto PLC — Director's Dealing 2009

Nov 19, 2009

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: CLOUD PEAK ENERGY INC. (CLD)
CIK: 0001441849
Period of Report: 2009-11-19

Reporting Person: RIO TINTO PLC (Director, 10% Owner)
Reporting Person: RIO TINTO EUROPEAN HOLDINGS LTD (Director, 10% Owner)
Reporting Person: RIO TINTO WESTERN HOLDINGS LTD (Director, 10% Owner)
Reporting Person: RIO TINTO AMERICA HOLDINGS INC (Director, 10% Owner)
Reporting Person: RTAH LLC (Director, 10% Owner)
Reporting Person: RIO TINTO AMERICA INC (Director, 10% Owner)
Reporting Person: RIO TINTO ENERGY AMERICA INC (Director, 10% Owner)
Reporting Person: KENNECOTT MANAGEMENT SERVICES CO (Director, 10% Owner)

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Common Membership Units	$		Common Stock of Cloud Peak Energy Inc., par value $.01/share (60000000)		Indirect

Footnotes

F1: For text of Footnote 1, see Exhibit 99.1.

F2: For text of Footnote 2, see Exhibit 99.1.