DALLAS, Texas, Aug. 16 -- Hunton Andrews Kurth, a law firm, issued the following news: Hunton Andrews Kurth LLP advised Piedmont Natural Gas Company, Inc. (the "Company") on an SEC-registered offering of $375 million aggregate principal amount of its 5.10% Senior Notes due February 15, 2035. The Company, a North Carolina corporation and a direct, wholly-owned subsidiary of Duke Energy Corporation, is a regulated public utility primarily engaged in the distribution of natural gas to over 1.2 mi  more