ExxonMobil Corp. has named Moses W. Dunning Americas base stock manager, replacing Erwin R. Erv Burbach, who moved to a new position.

Dunning has been with the company for 22 years, most recently in global marketing for lubricants and including a previous stint heading Exxons petroleum specialties business. Burbach, who has been with the company for 23 years, is now global supply manager for base stocks and specialties.