UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: December 20, 2016 12:00 P.M.
Form: S-3
CIK: 0001441849
Company Name: CLOUD PEAK ENERGY INC.
File Number: 333-214869
CIK: 0001493144
Company Name: Cloud Peak Energy Resources LLC
File Number: 333-214869-27
CIK: 0001496425
Company Name: CLOUD PEAK ENERGY FINANCE CORP.
File Number: 333-214869-26
CIK: 0001496459
Company Name: ANTELOPE COAL LLC
File Number: 333-214869-25
CIK: 0001599187
Company Name: Arrowhead I LLC
File Number: 333-214869-24
CIK: 0001599162
Company Name: Arrowhead II LLC
File Number: 333-214869-23
CIK: 0001599186
Company Name: Arrowhead III LLC
File Number: 333-214869-22
CIK: 0001599161
Company Name: Big MEtal Coal Co. LLC
File Number: 333-214869-21
CIK: 0001496427
Company Name: CABALLO ROJO HOLDINGS LLC
File Number: 333-214869-20
CIK: 0001496426
Company Name: CABALLO ROJO LLC
File Number: 333-214869-19
CIK: 0001599180
Company Name: Cloud Peak Energy Logistics LLC
File Number: 333-214869-18
CIK: 0001684366
Company Name: Cloud Peak Energy Logistics I LLC
File Number: 333-214869-17
CIK: 0001496424
Company Name: CLOUD PEAK ENERGY SERVICES Co
File Number: 333-214869-16
CIK: 0001496691
Company Name: CORDERO MINING HOLDINGS LLC
File Number: 333-214869-15
CIK: 0001496692
Company Name: CORDERO MINING LLC
File Number: 333-214869-14
CIK: 0001599175
Company Name: Cordero Oil & Gas LLC
File Number: 333-214869-13
CIK: 0001496693
Company Name: KENNECOTT COAL SALES LLC
File Number: 333-214869-12
CIK: 0001496695
Company Name: NERCO COAL LLC
File Number: 333-214869-11
CIK: 0001496696
Company Name: NERCO COAL SALES LLC
File Number: 333-214869-10
CIK: 0001496694
Company Name: NERCO LLC
File Number: 333-214869-09
CIK: 0001496651
Company Name: PROSPECT LAND & DEVELOPMENT LLC
File Number: 333-214869-08
CIK: 0001496664
Company Name: RESOURCE DEVELOPMENT LLC
File Number: 333-214869-07
CIK: 0001496663
Company Name: Sequatchie Valley Coal Corp
File Number: 333-214869-06
CIK: 0001496662
Company Name: SPRING CREEK COAL LLC
File Number: 333-214869-05
CIK: 0001496661
Company Name: WESTERN MINERALS LLC
File Number: 333-214869-04
CIK: 0001599166
Company Name: Youngs Creek Holdings I LLC
File Number: 333-214869-03
CIK: 0001599163
Company Name: Youngs Creek Holdings II LLC
File Number: 333-214869-02
CIK: 0001398283
Company Name: YOUNGS CREEK MINING CO LLC
File Number: 333-214869-01