>>20059715Warrior Met and Arch Coal's Leer and Leer South Mines are the biggest and most efficient (using longwalls) producers of met coal in the USA. And Warrior is biggest, especially when the Blue Creek Mine comes online in two years.
Also, Warrior is a pure met coal producer while Arch is diversified between thermal and met. So Warrior is likely a better hold. But, it must be said, Arch is trying to get into the met coal game, hence opening Leer South, and they will likely be looking for more opportunities in the future. So they could be a good longer-term hold as well.
