Exxon Mobil XOM.N on Friday beat Wall Street's third quarter profit estimate, boosted by strong oil output in its first full quarter that includes volumes from U.S. shale producer Pioneer Natural Resources.

Oil industry earnings have been squeezed this year by slowing demand and weak margins on gasoline and diesel. But Exxon's year-over-year profit fell 5%, a much smaller drop than at rivals BP BP.L and TotalEnergies TTEF.PA, which posted sharply lower quarterly results.

The U.S. oil producer reported income of $8.61 billion, down from $9.07 billion a year ago. Its $1.92 per share profit topped Wall Street's outlook of $1.88 per share, on higher oil and gas production and spending constraints.

"We had a number of production records" in the quarter, said finance chief Kathryn Mikells, citing an about 25% year-on-year increase in oil and gas output, to 4.6 million barrels per day.