X0306 4 2012-12-17 0000078460 PIEDMONT NATURAL GAS CO INC PNY 0001238195 YOHO FRANK H C/O PIEDMONT NATURAL GAS CO CHARLOTTE NC 28233 1 Senior Vice President Common Stock 2012-12-17 4 A 0 4100 31.42 A 66587.035 D Common Stock 2294 I By 401(k) Shares issued upon vesting of 2012 LTIP Award under registrant's Incentive Compensation Plan. Includes 9,950 equity units under a previously reported Retention Award vesting on December 15, 2013, provided that the reporting person is an employee on that date. The vested award is payable in the form of one share of common stock per equity unit. /s/ Judy Z. Mayo by limited power of attorney for Frank H. Yoho 2012-12-19