CHARLESTON, W.Va. — Donald L. Blankenship, a titan of the nation’s coal industry whose approach to business was scrutinized and scorned after 29 workers were killed at the Upper Big Branch mine in 2010, was convicted Thursday of a federal charge of conspiring to violate mine safety standards, part of a case that emerged after the accident, the deadliest in mining in the United States in decades.
The verdict reached by a federal jury here made Mr. Blankenship, 65, the most prominent American coal executive ever to be convicted of a charge connected to the deaths of miners. He had been accused of conspiring to violate mine safety regulations, as well as of deceiving investors and regulators; prosecutors secured a conviction on only one of the three charges. Mr. Blankenship was acquitted of making false statements and securities fraud. He faces a maximum of one year in prison on the misdemeanor conspiracy charge.