LONDON — The price of oil has fallen sharply as investors bet that President Donald Trump’s decision to pull the United States out of the Paris climate agreement will increase the country’s oil and gas production.

The cost of a barrel of crude slumped 2.4 percent, or $1.18, to $47.18 in electronic trading in New York today, hours after Trump said the U.S. would immediately stop implementing the Paris deal. He said his administration could try to renegotiate the existing agreement or try to create a new one that is more favorable to the U.S.

The deal would have required the U.S. to reduce polluting emissions by more than a quarter below 2005 levels by 2025, potentially limiting the growth of high-emissions industries like oil and gas production.

Economists, however, say that the climate deal would likely help create about as many jobs in renewable energy as it might cost in polluting industries.

U.S. oil production has already been increasing in recent months since the price of crude came off lows last year, making expensive shale oil extraction more economically viable.