Public utilities provide electric, gas, water or telephone service to customers in a specified area. Utilities have a duty to provide safe and adequate service on reasonable terms to anyone who lives within the service area on without discriminating between customers. Because most utilities operate in near monopolistic conditions, they can be heavily regulated by local, state, and federal authorities. Generally, the local and state agencies are called Public Service Commissions (PSC) or Public Utility Commissions (PUC). Municipal Utilities and Rural Electric Cooperatives may be unregulated though.
Denniston is an unincorporated community in Menifee County, Kentucky, United States. It lies along U.S. Route 460 and Kentucky Route 746 southeast of the city of Frenchburg, the county seat of Menifee County. Its elevation is 1,106 feet (337 m). Although it is unincorporated, it has a post office, with the ZIP code of 40316. Denniston is part of the Mount Sterling Micropolitan Statistical Area.