"No BrickSteet policyholder lost money because of this crime," he said of the fraud which involved several companies owned or controlled by one family. "We will continue to cooperate and support the prosecution of any individuals or companies who may be found to be involved with this incident, to the fullest extent of the law."
Goodwin said, "Mine safety is unquestionably a priority of my office. Today's filings underscore my commitment to approach this important issue from every angle.
"Employees in the coal mining industry who cheat the workers' compensation insurance system are really only cheating the hard-working miners who risk injury to perform dangerous jobs to provide for their families," Goodwin said.
"Failing to honestly and accurately report employment information to insurance companies like BrickStreet potentially exposes those coal miners to devastating financial misfortune if they get hurt on the job," he said.
"These charges are even more disturbing because these crooked operators were able to compromise the one person entrusted to make sure the employees are properly accounted for - the insurance company's auditor," Goodwin said.
"This type of corruption has long plagued the coal mining industry in southern West Virginia and must be stopped," he said.
The FBI and the IRS are handling the investigation.
Fraud by an insider is one of the most difficult crimes to detect because the insider knows all of the rules and safeguards and deliberately circumvents them.