The study assumes the moratorium is not lifted until 2012. It also assumes that development will be similar to the rate seen in the western gulf even though that development took place decades ago with inferior technology. The report also appears to be written before the rapid increase in oil prices we have seen in 2008 and may underestimate the economic viability of smaller fields. The report also does not include ANWR because is it obviously "onshore". Finally, it also fails to recognize the economic benefit of creating jobs and keeping more oil money in the US rather than sending it overseas.