Paul Foster

Oil refiner Tesoro bought Paul Foster's Western Refining for $6.4 billion in 2017; the combined company was renamed Andeavor. In April 2018, Marathon announced it would buy Andeavor for $23.3 billion; the deal later closed in October.As a teenager Paul Foster got his start in the oil fields, welding pipes, digging ditches, and cleaning tanks.A graduate of Baylor University and a registered CPA, Foster handled the books for small oil refineries across the Southwest. He and partners took over bankrupt El Paso Refining in 1992. Five years later he bought out his partners.