Indiana used 37-percent less coal for electricity generation between 2007 and 2015. Only Ohio and Pennsylvania saw a larger decrease.

A group of environmental and health advocates are especially concerned about Indiana's coal ash ponds and protecting federal legislation to clean them up.

The bankruptcy filing of the nation's biggest coal company will likely have repercussions in Indiana.

Coal industry representatives in Indiana, one of the nation's top coal-producing states, say the Supreme Court's stay of the Environmental Protection Agency's Clean Power Plan has little immediate effect on the state.

The Indiana Office of Utility Consumer Counselor is seeking public comment on a Duke Energy coal-gasification plant in southwestern Indiana.

Indianapolis Power & Light Company received approval Wednesday from the Indiana Utility Regulatory Commission to convert another portion of its Harding Street Station from coal-fired to natural gas-fired.

Hallador Energy Co. announced the layoffs Monday affecting Sunrise Coal's mines in Carlisle and Oaktown, both about 90 miles southwest of Indianapolis.