 "Mr. Charlie" was retired in 1986.After noticing the stability of submersible rigs when they were only partially submerged for relocation, Laborde designed and constructed the first purpose-built V-shaped semi-submersible drilling rig, "Ocean Driller", delivered in 1963.In 1982, "Ocean Ranger", one of the company's oil platforms, sank in a violent storm in Canadian waters east of Newfoundland, killing 84 people.