Offshore oil drilling is now favored by 63 percent of the electorate. 

        How many now recall that it was offshore oil blowouts (in the Santa Barbara channel, at the end of the 1960s) that provoked the creation of the USEPA and the legislation requiring environmental impact reports?
        Offshore drilling should be prohibited altogether.  A higher priority  -  and I suppose not more expensive  -  would be 8 - 10 km holes on land (based on Gold's deep primordial gas theory).  And, as always with energy, decreasing waste is faster, cheaper, and more ecologically beneficial, than striving for new sources.