On September 3, 2026, Northwest Natural Gas Company issued $120 million in aggregate principal amount of First Mortgage Bonds to institutional investors. The issuance consists of $60 million in 5.62% Series bonds maturing on September 3, 2036, and $60 million in 6.26% Series bonds maturing on September 3, 2056. Interest is payable semi-annually starting March 3, 2027. The company operates as a regulated natural gas utility.