High Quality Content by WIKIPEDIA articles! Petronius is a deepwater compliant tower oil platform operated by Chevron Corporation and Marathon Oil in the Gulf of Mexico, 210 km southeast of New Orleans. A compliant piled tower design, it is 609.9 meters (2,001 ft) high, and was arguably the tallest free-standing structure in the world, until surpassed by the Burj Dubai in 2008, although this claim is disputed since only 75 meters of the platform are above water. The multi-deck topsides are 64 m ...