Completed the following sentence: The rig's operator, Occidental Petroleum, bought a direct insurance policy from Lloyd's underwriters, who then passed part of their shares of the risk on to other syndicates via reinsurance. <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk>
Exxon Valdez oil spill in 1989, also went into the spiral.