Workers extracting oil from oil wells in the Permian Basin in Midland, Texas on May 1, 2018.

U.S. oil jumped more than 23% on Thursday for its best day on record, as it clawed back more than half of the losses from Wednesday's swoon.

U.S. West Texas Intermediate crude gained 23.8%, or $4.85, to settle at $25.22 per barrel. Given WTI's 60% decline this year, a smaller gain, of course, now accounts for a much larger percentage move. International benchmark Brent crude rose 14.4%, or $3.59, to settle at $28.47 per barrel. Prices continued to climb even higher in extended trading.