President Donald Trump throws a hat into the crowd as he arrives at a campaign rally at Lubbock Memorial Civic Center, Tuesday, Oct. 27, 2026, in Lubbock, Texas. Annie Rice/AP hide caption

Annie Rice/AP

BILLINGS, Mont. — President Donald Trump said Tuesday that his administration is "terminating" a Biden-era rule that aimed to cut planet-warming emissions of methane from oil and gas drilling.

Trump said during a campaign rally in Texas that the change would save companies and consumers billions of dollars and unlock 210 million barrels of oil. That's equivalent to about 10 days of U.S. petroleum consumption.

The move aims to encourage more domestic drilling as Trump faces criticism over high fuel prices amid the war in Iran.

Methane is responsible for about a third of planet-warming greenhouse gas emissions, scientists estimate.

FILE - A flare burns off methane and other hydrocarbons as oil pumpjacks operate in the Permian Basin in Midland, Texas, on Oct. 12, 2021.…