The EC-155 has had it's share of problems in the oil patch....supposed to be an internal audit going on in Nigeria about the 155/Dornier Jet decision and the subsequent performance of the two "new" types. Shell Oil may be catching on to the questions lots of others have been asking about the two programs....but there it seems to be more of why the decision was made to buy the particular models/types for the operations being conducted. Race horses don't pull plows very well kind of thing!