Much of Monday's meeting focused on possible beneficial uses of land flattened by mountaintop removal.
Dana Davis, director of the state Development Office, said his agency believes such mine sites should be left flattened "to make them an economic asset to the state and its people."
Under federal law, mountaintop removal permits are supposed to be issued only when companies have concrete plans for developing the land after mining.
A federal court lawsuit filed by environmental groups alleges that the state Division of Environmental Protection has established a "pattern and practice" of issuing illegal mountaintop removal permits without land development plans.
Carter's council and his company tried unsuccessfully to intervene in that lawsuit earlier this month.
Carter told task force committee members that his company would prefer the term "full-seam extraction method" to mountaintop removal mining.
Like other speakers, Carter said mountaintop removal is the only way coal in Southern West Virginia can be mined profitably.
"You can't force economics," Carter said. "If you could, we would have every ton of our coal mined tomorrow and be done with it."
Carter said regulators need to allow "interim land uses" for mountaintop removal mining. That way, he said, that land could be mined and flattened so that it's ready whenever someone comes up with a plan to develop it.
Carter also appeared to disagree with Davis, saying that the demand for flattened, vacant sites with infrastructure doesn't exist.
"Again, you can't force the economics," Carter said. "If the demand is there, the infrastructure will show up.
"It would be a terrible waste of taxpayers' money to put infrastructure into a site that doesn't have demand for it."