When the U.S. recognized Venezuelan opposition leader Juan Guaidó as the nation’s rightful leader last year it did more than just trigger a bitter feud with socialist leader Nicolás Maduro. Increasingly, it’s also unleashing a torrent of lawsuits.

The latest came Tuesday, when the Guaidó-appointed board of Citgo, the U.S. subsidiary of Venezuela’s state oil company, filed a lawsuit in federal court in Houston against a former contractor seeking to recover millions of dollars in damages.