Ronald Kuehn, recently named chairman and CEO of El Paso Corp., has resigned from Transocean Inc., effective Monday. Kuehn apparently told Transocean management that his resignation would allow him to devote additional time to his El Paso duties. He said the move also would avoid the appearance of conflicts of interest that could arise with the recent appointment of J. Michael Talbert, Transocean's chairman. Kuehn had served on the offshore drilling contractor's board and its predecessor companies since 1975.