 Shipley Group, the York-based company comprising Shipley Energy, Shipley Fuels Marketing, Shipley Propane, Tom’s Gas Station Convenience Stores and Yowza Coffee & Water, provides service to 15 counties throughout Pennsylvania.The company is in its fourth generation of family ownership.Shipley traces its origin back to 1929 when Thomas Shipley founded the Roosevelt Garage and Supply Company as a convenient place for people to fill their gasoline tanks and service their automobiles.