On April 22, 2010, three Oceaneering ROV crews aboard the Oceaneering vessel "Ocean Intervention III", the DOF ASA "Skandi Neptune" and the Boa International "Boa Sub C" began to map the seabed and assess the wreckage from the "Deepwater Horizon" oil spill. The crews reported "large amounts of oil that flowed out." Oceaneering ROV Technician Tyrone Benton was later called as a witness to provide information on the leaks associated with BOP stack investigation, but gave no reason why he later failed to appear in court.