ORGANIZATION@1 was founded in NUMBER@1 as a partnership between ORGANIZATION@2 -LRB- now ORGANIZATION@3 -RRB- and the PERSON@1 family of LOCATION@1 , LOCATION@2 .

History Arch Mineral Corporation began in NUMBER@1 , as a partnership between ORGANIZATION@2 -LRB- now ORGANIZATION@3 -RRB- and the PERSON@1 family of LOCATION@1 .
