Regulation

Trump and his campaign are lashing out after Twitter on Tuesday added a warning phrase to two tweets.

The bill could be debated during this winter's legislative session.

The oil and gas industry is the nation's primary source of methane emissions, according to the EPA, accounting for nearly one-third in 2016.

Under Obama, regulators concluded that having two or more crew members would be worth the extra cost even if it prevented a single accident.

The Trump administration put the rule on hold in February after mining companies challenged it in federal court.

Economists aren't so confident.

At issue is how to pay for cleaning up two Wyoming coal mines owned by Alpha Natural Resources should they close.

Alpha Natural Resources is laying off 37 workers at its Belle Ayr and Eagle Butte mines in northeast Wyoming.

It could also reduce coal use from the Powder River Basin in Wyoming by up to 50 percent and it would also affect Montana.

PacifiCorp is closing a coal plant in southwest Wyoming, abandoning plans to convert one of the Kemmerer plant's coal units to natural gas.