Linked here is a detailed quantitative analysis of Northwest Natural Gas Co. (NWN). Below are some highlights from the above linked analysis:
Company Description: Northwest Natural Gas Co. is a natural gas utility that provides service to some 611,000 residential, 62,000 commercial and 1,000 industrial customers in Oregon and southwestern Washington.
Fair Value: In calculating fair value, I consider the NPV MMA Differential Fair Value along with these four calculations of fair value, see page 2 of the linked PDF for a detailed description: