On January 2, the Pipeline and Hazardous Materials Safety Administration (PHMSA) issued a major safety alert, declaring oil obtained via hydraulic fracturing (“fracking”) in the Bakken Shale may be more chemically explosive than the agency or industry previously admitted publicly.

This alert came three days after the massive Casselton, ND explosion of a freight rail train owned by Warren Buffett‘s Burlington Northern Santa Fe (BNSF) and was the first time the U.S. Department of Transportation agency ever made such a statement about Bakken crude.