Eight new members have been elected to the board of directors of New York Mercantile Exchange (Nymex) and Nymex Holdings. Shareholders voted for Stephen Ardizzone, John McNamara, David Greenberg, Jesse Harte, Joel Faber, Scott Hess, John Conheeney and Bulkeley Griswold. Ardizzone was elected into the floor broker category. He heads Zone Energy Group. Vice president for Banc One, McNamara runs the futures commission merchant category. Greenberg starts his second term in the local category. He co-chairs the Exchange's technology and international expansion committees and vice-president of marketing. Harte enters his second term in the trade category. He works for Duke Energy. Faber begins his second term in the trade category. Hess enters his third term in the at-large category. He is a partner in...