During September of last year, The Wall Street Journal reported that a Texas-based billionaire owner of a pipeline company named Kelcy Warren filed a lawsuit against Greenpeace USA that could up shutting down the environmentalist group.

Warren’s company, Energy Transfer, is pursuing legal action against Greenpeace USA under racketeering statutes (i.e. RICO) that were used against organized crime syndicates. The energy company says that during 2016, their various groups affiliated with Greenpeace financed attacks on the Dakota Access Pipeline resulting from false information Greenpeace spread about the company and its project.

Energy Transfer alleges that eco-terrorists gathered at the North Dakota pipeline construction site to prevent the $3.8 billion Standing Rock pipeline from proceeding, leading to occasional violent confrontations between protesters and law enforcement. Until now, Greenpeace had remained silent about the legal action against them.