The Trump administration made a dramatic move Tuesday, ceasing an important operating license the American oil giant Chevron needed to operate in Venezuela. The decision follows Washington’s condemnation of President Nicolás Maduro’s government for not making concrete advances on key electoral reforms.

The Trump administration formally revoked on Tuesday the license that allows oil giant Chevron Corp. to sell Venezuelan oil in the United States, giving the U.S. company only 30 days to wind down its operations in the South American country.

The U.S. Treasury just gave Chevron Corp. a short 30-day eviction notice from Venezuela, cutting off its ability to pump and sell crude from the sanctioned country