Northwest Natural Holding Co. engages in the local distribution of gas and water through its subsidiaries. The company is headquartered in Portland, Oregon and currently employs 1,275 full-time employees. The firm owns Northwest Natural Gas Company (NW Natural), SiEnergy Operating (SiEnergy Gas Utility), NW Natural Water Company (NWN Water Utility), NW Natural Renewables Holdings (NWN Renewables), and other business interests. NWN Gas Utility is a local distribution company that provides natural gas services to approximately two million people in more than 140 communities through approximately 807,000 meters in Oregon and Southwest Washington. NW Natural owns and operates 21.6 Bcf of underground gas storage capacity in Oregon. SiEnergy Gas Utility is a natural gas distribution utility, serving over 73,000 meters in the greater metropolitan areas of Houston, Dallas, and Austin, Texas. NWN Water Utility provides water distribution and wastewater services. NWN Renewables provides renewable fuels.