The president of ExxonMobil Refining & Supply Co. is retiring at the beginning of August, the company said Friday.

Sherman” Glass, who is also a vice president at Exxon Mobil Corp., will be replaced by Darren Woods, the current vice president of supply and transportation at the refining company.

Woods has been with Exxon since 1992.

Glass began his career in 1972 as an engineer at the Baytown refinery in Texas and moved through a series of technical and management jobs before he became president of the refining and supply company in 2008.