Spring, Texas-based Exxon Mobil Corporation (XOM) operates as the largest American oil & gas company. It engages in the exploration and production of crude oil and natural gas in the U.S. and internationally. Valued at $489 billion by market cap, Exxon operates through Upstream, Energy Products, Chemical Products, and Specialty Products segments. The energy giant is set to release its third-quarter results before the markets open on Friday, Oct. 31. Ahead of the event, analysts expect Exxon to deliver a n ...