October 12, 2023--Researched by Industrial Info Resources (Sugar Land, Texas)--Exxon Mobil Corporation (NYSE:XOM) (Irving, Texas) has agreed to acquire Pioneer Natural Resources (NYSE:PXD) (Irving, Texas) in an all-stock deal worth $59.5 billion, the companies announced Wednesday. The deal will make ExxonMobil the largest oil and gas producer in the Permian Basin.