MARSHALL, Mich. — A company responsible for one of the largest inland oil spills in U.S. history will restore or create 300 acres of wetlands as part of a sweeping agreement with the state to improve the Kalamazoo River watershed in southwestern Michigan.A settlement filed Tuesday in Calhoun County court requires Enbridge Energy to keep monitoring the impacts of the spill, which released more than 800,000 gallons of oil from a broken pipeline in 2010. The company also agreed to spend $75 million, much of it on …