/news/tags/ohio-sierra-club Ohio Sierra Club en-US Copyright Tue, 29 Oct 2019 22:39:34 GMT /news/economy/2019-10-29/coal-producer-murray-energy-files-for-bankruptcy Murray Energy, one of the nation's largest producers of coal, has filed for bankruptcy. The Ohio-based coal mining company also announced that its… Tue, 29 Oct 2019 22:39:34 GMT /news/economy/2019-10-29/coal-producer-murray-energy-files-for-bankruptcy Andy Chow