WMA Directory

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American Colloid Company, Division of Minerals Technology, Inc.

American Colloid Company, Division of Minerals Technology, Inc. – BELLE/COLONY MINE

Anadarko Petroleum Corporation – Rock Springs, WY Office

Anadarko Petroleum Corporation – Wyoming Operations

Arch Coal, Inc. – Arch of Wyoming, LLC.

Arch Coal, Inc. – Coal Creek Mine

Arch Coal, Inc. – St. Louis, MO Office

Arch Coal, Inc. Thunder Basin Coal Company

Arch Coal, Inc. Wright, WY Office

Bentonite Performance Minerals, LLC -Lovell Mine

Bentonite Performance Minerals, LLC. – Colony Operations

Black Butte Coal Company

Black Hills Bentonite, LLC. – Headquarters

Blackjewel Mining LLC – Belle Ayr Mine & Eagle Butte Mine

Burlington Northern Santa Fe Railway

Burlington Northern Santa Fe Railway – Littleton, CO Office

Cameco Resources – Casper Office

Cameco Resources – Smith Ranch-Highland

Ciner Wyoming, LLC

Cloud Peak Energy Resources, LLC. – Antelope Mine

Cloud Peak Energy Resources, LLC. – Colorado Office

Cloud Peak Energy Resources, LLC. – Cordero Rojo Mine

Cloud Peak Energy Resources, LLC. – Spring Creek Mine

Cloud Peak Energy Resources, LLC. – Wyoming Office

Cloud Peak Energy Resources, LLC. – Youngs Creek Mine

Energy Fuels – Casper, WY Office

Energy Fuels Resources (USA) Corporate Office

Energy Labortories

Genesis Alkali (formerly Tronox Alkali)

Horizon Wyoming Uranium, Inc. – Golden, CO Office

Kennecott Uranium Company – Sweetwater Uranium Project

Kiewit Mining Group, Inc. – Buckskin Mining Company

Kiewit Mining Group, Inc. – Omaha, NE Office

KLJ Engineering

Komatsu Equipment Company

Komatsu Mining Corp.

M-I SWACO a Schlumberger Company

M-I SWACO A Schlumberger Company- Corporate Office

PacifiCorp – Bridger Coal Company

PacifiCorp – Interwest Mining Company

PacifiCorp – Rocky Mountain Power

Peabody

Peabody – Caballo Mine

Peabody – North Antelope Rochelle Mine

Peabody – Rawhide Mine

RAMACO, LLC

Rare Element Resources LTD.

Rare Element Resources LTD. Sundance, WY Office

ROCKY MOUNTAIN POWER – Salt Lake City, UT

Solvay Chemicals – Green River Operations

Strata Energy, Inc.

Tata Chemicals (Soda Ash) Partners

TATA Chemicals North America

Tolsa USA, Inc.

Union Pacific Railroad –

UR-Energy USA Inc. – Lost Creek

UR-Energy, Inc. – Corporate Office

URANERZ ENERGY CORPORATION (AN ENERGY FUELS COMPANY)

Uranium Energy Corporation – Reno Creek Project

Uranium One Americas, Inc. – U.S. Regional Office

Uranium One Americas, Inc. – Willow Creek Mine

Westmoreland Kemmerer, Inc. – Kemmerer Mine

WYO-BEN, Inc. – Corporate Office

WYO-BEN, Inc. – Lucern Plant

WYO-BEN, Inc. – Sage Creek Plant

WYO-BEN, Inc. – Stucco Plant

WYODAK Resources Development Corp. – WYODAK Mine