/tags/tom-skaines Tom Skaines en-US Copyright Mon, 26 Oct 2015 14:06:40 GMT /environment/2015-10-26/duke-energy-to-buy-piedmont-natural-gas Duke Energy has announced it will buy Piedmont Natural Gas for $4.9 billion dollars in cash.Piedmont Natural Gas serves customers in almost every area of… Mon, 26 Oct 2015 14:06:40 GMT /environment/2015-10-26/duke-energy-to-buy-piedmont-natural-gas Dave DeWitt