has the same preventers, cameron ones on top and bottom. only difference it has one more ram for a little more redundancy than the deepwater horizon. one change. other than that, pretty much the same. control system is the same, everything else is the same. do we know anything about this drill ship s safety record? it is interesting. this drill ship received mms, predecessor to bme, mre safety ou ihaemy is dionctthe me oe 2002, once in 2004, and again in 2007. the 2002 and 2004 incidents were caused by weather. this is a dynamically positioned ship held in place by gps and thrusters. in severe weather can be pushed off location. that happened twice in those years. in 2007, it was operator error. operator error.