Duke Energy Progress, Piedmont Natural Gas post high customer satisfaction - Charlotte Business Journal
Duke Energy, Piedmont Natural Gas to build major natural gas pipeline | Energy Magazine
Piedmont Natural Gas urges seasonal customers in Tennessee to call now to restart service
Piedmont Natural Gas on Twitter: "N.C. Utilities Commission approves Duke Energy's acquisition of Piedmont Natural Gas: https://t.co/spY6Yi3xXC https://t.co/wzYWBXHn0M" / Twitter
Duke Energy completes acquisition of Piedmont Natural Gas
N.C. Regulators OK Duke's Purchase of Piedmont | WFAE 90.7 - Charlotte's NPR News Source
Duke Energy and Piedmont Natural Gas Grant - Gaston College
Duke Energy announces agreement to acquire Piedmont Natural Gas | WMTG Radio