One of the oldest coal companies in the U.S. filed for bankruptcy protection Tuesday to deal with more than $1.4 billion in debt amid declining demand for the fuel. Westmoreland Coal Co. filed for voluntary Chapter 11 protection in U.S. Bankruptcy Court in Houston as part of a restructuring agreement with an unnamed group of lenders. Westmoreland, which operates mines across the U.S. and Canada, is the fourth major coal company to file for bankruptcy in the past three years. Westmoreland has $770 million in assets and $1.4 billion in debt, according to the bankruptcy filing. Click here, here and here for the full story.