A second U.S. exit from the Paris Climate Agreement will have profound implications for the United States’ efforts to reduce its own emissions,” an Exxon spokesperson told ESG Dive.

Exxon Mobil CEO Darren Woods told the Wall Street Journal that the U.S. should stay in the Paris climate agreement under the incoming Trump administration.

President-elect Donald Trump campaigned on a platform to significantly ramp up U.S. oil production and bring down the cost of energy, but the head of the nation’s largest energy company is doubtful he can make good on that promise.