Northwest Natural Holding Company, through its subsidiary, Northwest Natural Gas Company, provides regulated natural gas distribution services to residential, commercial, industrial, and transportation customers in Oregon and Southwest Washington. The company also operates 5.7 billion cubic feet of the Mist gas storage facility contracted to other utilities and third-party marketers; offers natural gas asset management services; and operates an appliance retail center. In addition, it engages in the gas storage, water, non-regulated renewable natural gas, and other investments and activities.