Exterior of convenience store A KwikShop in Wichita, KS, one of 784 convenience stores operated by Kroger. (Photo: Vantage Point Properties)

CINCINNATI—The nation’s largest grocery operator by revenue is exploring a sale of its convenience store business. The Kroger Co. said Wednesday it had hired Goldman Sachs to identify, review and evaluate options for its 784 C-store properties, which operate under five different banners in 18 states.