Northwest Natural Gas Company (NW Natural) is a supplier of gas service. The Company maintains operations in Oregon, Washington and California and conduct businesses through NW Natural, its subsidiaries and joint ventures. The Company operates in two business segments: Local Gas Distribution and Gas Storage. NW Natural and its direct and indirect wholly owned subsidiaries which include Gill Ranch Storage, LLC (Gill Ranch), NW Natural Energy, LLC (NWN Energy), NW Natural Gas Storage, LLC (NWN Gas Storage), and NNG Financial Corporation (NNG Financial). Its utility operations and gas storage operations at Mist depend on a single bi-directional interstate transmission pipeline to ship gas supplies. Palomar, a wholly owned subsidiary of Palomar Gas Holdings, LLC (PGH), is pursuing the development of a gas transmission pipeline that would provide an interconnection with its utility distribution system. PGH is owned 50% by its NWN Energy subsidiary.