Northwest Natural Holding Company (NWN) operates primarily through its subsidiary, Northwest Natural Gas Company, delivering regulated natural gas to a diverse clientele including residential, commercial, industrial, and transportation customers across Oregon and Southwest Washington. Beyond its core distribution business, the company manages the Mist gas storage facility, which holds 5.7 billion cubic feet and is leased to other utilities and third-party energy marketers. It also provides natural gas asset management solutions and maintains an appliance retail outlet.