The Deepwater Horizon Oil Spill, the largest accidental marine oil spill in history, was most likely caused by human error, cost cutting and an insufficient safety system.
BP’s head of safety admits human error over oil spill. A pressure test which would have revealed problems in the drill “was incorrectly deemed a success by BP and Transocean rig personnel”, he said. And on three occasions, real-time monitoring data from the rig indicated that pipe pressure had increased, when it should have dropped. These indicators went “unobserved or unrecognized” for about 40 minutes, which “significantly shortened” the workers’ emergency response time.