Allegiance Coal Limited, together with its subsidiaries, engages in the acquisition, exploration, and development of coal tenements. It holds 100% equity interests in the New Elk metallurgical coal project located in Las Animas County in southeast Colorado; and Black Warrior coal mine situated in Alabama. The company also holds a 90% equity interest in the Telkwa metallurgical coal project located in British Columbia, Canada; Tenas Project situated in northwest British Columbia; and Short Creek mine assets located west of Birmingham, Alabama. Allegiance Coal Limited was incorporated in 2011 and is headquartered in Sydney, Australia.