the answer is in the question:
"It turns out, by the way, that oil rigs today
generally don't cause spills.", operative word being generally....which was correct, although we see that it only takes one spill to spoil a whole lot of barrels.
Obama also said this during that same announcement:
It was a compromise governed by the tough choices the country now faces, Obama said, and he urged both sides in an entrenched debate to give a little.
"This is not a decision that I've made lightly," Obama said, with an experimental jetfighter that flies on biofuels serving as a backdrop to the announcement at nearby Andrews Air Force Base.
That drilling moratorium had been lifted by President George W. Bush in 2007, but Salazar put Republican plans to allow offshore drilling on hold pending further review.
As a senator, Salazar initially opposed the Bush offshore- drilling proposal as "a phantom solution" to the country's energy problems, but later he joined a bipartisan group of senators pushing to open up the country's coastlines.
Some industry representatives said the administration's compromise may end up being judged harshly by advocates of more domestic drilling.
http://www.denverpost.com/frontpage/ci_14797310 back in 2008, then Candidate Obama said this in reference to Oil drilling:
"Like all compromises, it also includes steps that I haven't always supported," Obama said in his announcement.
"I remain skeptical that new offshore drilling will bring down gas prices in the short-term or significantly reduce our oil dependence in the long-term, though I do welcome the establishment of a process that will allow us to make future drilling decisions based on science and fact. But I've always believed that finding consensus will be essential to solving our energy crisis, and today's package represents a good faith effort at a new bipartisan beginning."
http://politifact.com/truth-o-meter/statements/2010/mar/31/barack-obama/once-wobbly-obama-not-inconsistent-latest-oil-dril/