Exxon Mobil Corp. is convinced its interpretation of intent in a Guyanese oil contract signed a decade ago will prevail in a landmark arbitration case against Chevron Corp.

Hess Corp. signaled its $53 billion agreement to be bought by Chevron Corp. may be delayed after ExxonMobil filed for arbitration to preserve its rights to a massive oil discovery off Guyana.

Exxon Mobil’s third-quarter profit declined compared with last year when the oil giant put up record numbers as oil prices soared, but net income jumped 15% compared with Q2.

Exxon Mobil is buying Pioneer Natural Resources in an all-stock deal valued at $59.5 billion, its largest buyout since acquiring Mobil two decades ago, creating a colossal fracking operator in West Texas.

Exxon Mobil Corp. is in talks to acquire Pioneer Natural Resources Co., according to a person familiar with the matter, nearing its largest takeover in more than two decades.

Exxon Mobil Corp. fell short of analysts’ expectations with a third straight drop in profit amid weaker natural gas prices and shrinking returns from fuel sales.

Exxon Mobil Corp. is betting that a better way to frack will double the amount of oil it can pump from shale fields.

SANTA MARIA, Calif. — A bid by Exxon Mobil to restart offshore oil wells shut down in 2015 after a pipeline leak caused the worst coastal spill in 25 years was rejected March 8 amid lingering environmental concerns.

NEW YORK — Exxon Mobil is restructuring its business into three divisions and moving its headquarters 250 miles south from Irving, Texas, to its campus north of Houston.

ExxonMobil Corp. said it will adjust its rates following a Dec. 23 fire at its Baytown, Texas, refinery that injured four people.