Yes, I'm sure that demand for West Virginia's coal is perfectly elastic between US power plants also located in the Midwest and ones in India and Africa that haven't been built yet.
Fossil fuels are priced on a global futures markets. Did you think Canadian oil producers exist in a vacuum where Qatari production, or Indian demand, has no effect on them? Whether Canadian oil actually makes it to India doesn't matter.
If you know more than someone else, that's great, but in that case please share some of what you know—without putdowns or snark—so the rest of us can learn: