NW Natural is Oregon's largest natural gas utility. It serves customers along the Oregon Coast, in the Willamette Valley, the Columbia River Gorge, and the Portland metropolitan area. The company operates an underground natural gas storage facility near Mist, Oregon, in the Northern Oregon Coast Range utilizing depleted gas wells, as well as a facility near Fresno, California. These former wells allow the company to purchase the gas when prices are lower and store until needed during peak consumption times during the winter.