[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/07/30/art.gasprices.gi.jpg caption="Most Americans are for offshore drilling but are split on whether it will change gas prices."](CNN) - Most Americans favor an increase in offshore oil drilling but the public is split over whether or not it would result in lower gas prices in the next year, according to a just-released CNN/Opinion Research Corporation poll.
More than two thirds of Americans say they favor increasing drilling efforts off America's costs while only 30 percent disapprove of such action. Those numbers come the same day President Bush publicly scolded Democratic congressional leaders for not putting his proposal to expand domestic oil drilling, specifically on the outer continental shelf, to a vote.
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The issue has become a divisive one on the campaign trail, with John McCain in favor of lifting a congressional ban on offshore drilling while Barack Obama is opposed to such a proposal.
McCain has said such increases in drilling efforts could ease prices at the pump within a "matter of months." But Obama has said there is little evidence that drilling offshore would have any positive effect on American consumers and is instead pushing energy rebates.
The poll also shows Americans are divided when it comes to the effect of offshore drilling. Just over 50 percent think it will reduce gas prices while 49 percent say it will not.