Standing 60 feet above sea level on this oil platform 130 miles southeast of New Orleans, Rab Bruce pointed to where the huge wave slammed into a tangle of grated steel and multicolor pipes. The Petronius deep-water platform, which was hit by a 90-foot wave during Hurricane Ivan last September, is now back on line. "I was just in shock at the damage," said Mr. Bruce, a longtime field coordinator on Chevron's Petronius deepwater platform, which was hit by a 90-foot wave during Hurricane Ivan last September. "I had never seen anything like this. Everything was busted, dangling and messed...