Offshore drilling should be banned once we have the technology to use more ecofriendly things like electric cars, clean energy, ect.
Although having our own source and supply may be a good thing, if we get rid of this, we could have better relations with foreign countries that we get oil from and we could even get help from them to find better ways to be ecofriendly.
Even if we end up saving money using offshore oilrigs, it cost alot to build them and alot more to clean up after them. If we have to drill, drill onshore.