Thanks to D.L.:
The American Public Media show “Marketplace” is doing a series on coal, and two of their stories have focused on Indian tribes. The first, about coal mining on the Crow Reservation, is more about the tribal economy; but the second, about a proposed coal shipping terminal in Washington state, has some legal issues (whether treaty fishing rights might be used to defeat the proposed coal terminal).
Both stories can be found at http://www.marketplace.org/topics/sustainability/coal-play