Otter Tail Corporation Common Stock, also called Otter Tail, is a holding company, which engages in the energy, infrastructure, and production businesses. It operates through the following segments: Electric, Manufacturing, and Plastics. Read More The Electric segment generates, transmits, and distributes power and electric energy. The Manufacturing segment offers contract machining, metal parts stamping, fabrication, handling trays, and horticultural containers. The Plastics segment produces polyvinyl chloride pipes. The company was founded in 1907 and is headquartered in Fergus Falls, MN.