david j. dzuricky piedmont natural gas company, inc. maximum # of shares to sell under the plan : 9, 000 rule 10b5 - 1 sales plan and client representations i, david j. dzuricky, as of the date below, establish this sales plan ( “ plan ” ) in order to sell shares of the common stock ( “ shares ” ) of piedmont natural gas company, inc. ( “ issuer ” ) pursuant to the requirements of rule 10b5 - 1 under the securities exchange act of 1934, as amended ( “ exchange act ” ). i request that merrill lynch, pierce, fenner & smith incorporated ( “ merrill lynch ” ) execute the plan as follows : 1. sales instructions for sales starting on december 1, 2006 and ending on december 31, 2006, 1. 1. for owned shares you are authorized to sell pursuant to the attached sec rule 10b5 - 1 sales instruction and notice provision — annex : 2. execution, average pricing and pro rata allocation of sales 2. 1. i agree and acknowledge that : 1. if my order to sell shares pursuant to the plan, whether market or limit, is handled by a merrill lynch trading desk, my order shall be handled as “ not held ”. a “ not held ” or “ working order ” permits a merrill lynch trader to use reasonable brokerage judgment, exercising price and time discretion, as to when to execute the order. 2. merrill lynch may execute my order : ( a ) in a single transaction or multiple transactions during the course of the trading day, or ( b ) it may aggregate my order with other orders for other sellers of the issuer ’ s securities that may or may not have been accepted pursuant to a rule 10b5 - 1 sales plan, execute them as a block or in multiple smaller transactions, and allocate an average price to each seller. 3. when orders are aggregated, merrill lynch shall allocate the proceeds of shares sold pro rata among the sellers, based on the ratio of ( x ) the shares to be sold and ( y ) the sum of the proceeds of all shares sold, and merrill lynch will provide each seller an “ average price confirmation ” that identifies the amount of securities sold for the applicable seller together with an average price for sales. 3. stock splits / reincorporation / reorganizations 3. 1 in the event of a stock split or reverse stock split, the quantity and price