The Board of Directors of Northwest Natural Gas Company (NYSE:NWN), dba NW Natural, has declared a quarterly dividend of 41.5 cents a share on the company's common stock. The dividends will be paid Aug. 13, 2010, to shareholders of record on July 30, 2010. The indicated annual dividend rate is $1.66 per share. About NW Natural NW Natural is headquartered in Portland, Ore., and serves approximately 668,000 customers in Oregon and southwest Washington. It is the largest independent natural gas utility in the Pacific Northwest. The company has about $2.4 billion in total assets, which includes approximately 16 Bcf of underground gas storage capacity within its service territory at Mist, Ore. The company also is building an underground gas storage facility in California and a natural gas pipeline in Oregon. NW Natural has increased its dividends paid on common stock for 54 consecutive years.