The largest oil producer in the prolific Permian Basin of West Texas and southeastern New Mexico is ExxonMobil, following its massive strategic corporate acquisition of Pioneer Natural Resources. This multi-billion-dollar integration solidified ExxonMobil's operational dominance across the basin, giving it an unmatched inventory of low-cost, high-yield acreage and propelling its daily crude oil and natural gas production volumes well ahead of competing independent operators in the region.