The double-whammy of those hurricanes has already cost the Gulf almost 7 percent of its annual oil production and 5 percent of its yearly natural gas output, according to a report Wednesday from the U.S. Minerals Management Service.
"The impact on the rigs is something that's never been seen by this country before," said Daniel Naatz, director of federal resources for the Independent Petroleum Association of America.
ODS-Petrodata, which provides data and information to the industry, reported 13 rigs already seriously damaged or destroyed by Rita. Platform damage still is being assessed, said Tom Marsh, ODS analyst.
"You may think that 13 is not a significant amount, but this is 10 percent of the contracted fleet out of service for various lengths of time or in some cases permanently," Marsh said.
Meanwhile, nine of 12 pipelines that move gas and oil onshore remain shut down or operating at less than 100 percent capacity, according to the latest report by the Association of Oil Pipelines.
Refineries in the hardest-hit area of Beaumont and Port Arthur, Texas, plus Lake Charles, La., still are not operating, costing about 1.7 million barrels a day of refined products, according to the U.S. Department of Energy.
In order to offset the damage of not just this year's hurricanes, but future storms as well, the oil industry is seeking new locations for refineries, CBS News correspondent Anthony Mason reports.
In southwest Arizona, Glenn McGinnis, chief executive officer of Arizona Clean Fuels, hopes to build a new refinery, though it will take
"The fundamental reason is that the economics of refining have been very poor. Refineries just haven't made money," oil industry analyst Malcolm Turner tells Mason.
Until recently, refineries were considered risky investments. Oil price swings cut profits and drove many smaller refiners out of business, Turner says.
In 1980, the U.S. could refine 18 million barrels a day and used only 17 million. But as demand has soared by almost 20 percent, our refining capacity has actually shrunk, Mason adds.
The slow pace of recovery for the Gulf refineries, rigs and platforms, and concerns about demand for heating oil this winter and for gasoline as the economy bounces back from Katrina and Rita, drove up oil futures Wednesday.
Light, sweet crude for November delivery rose $1.28 to $66.35 a barrel on the New York Mercantile Exchange. Natural gas futures for October rose more than $1 to $13.907 per million British thermal units.
Heating oil gained more than 7 cents to settle at $2.1411 a gallon, while gasoline gained more than 17 cents to settle at $2.3393 a gallon, an increase of about 8 percent.
Industry executives and analysts say consumers and companies should brace for an expensive winter. And natural gas prices could soar more than fuel oil because, unlike crude oil, there are no natural gas reserves to tap.
Since Katrina struck, the country has received an occasional oil injection from the Strategic Petroleum Reserve and the Paris-based International Energy Agency.
"This would be a good time to have a warm winter," said Ron Gold, vice president of the Petroleum Industry Research Foundation.
Assessing damage is taking longer than post-Katrina efforts, with some findings not expected until late this week or early next week.
Companies were still evaluating the damage wrought by Katrina when Rita bore down on the country's energy hub.
The U.S. Minerals Management Service reported that 593 platforms and 64 rigs still remain evacuated. That's 72 percent of the 819 manned platforms and 48 percent of the 134 rigs with operations in the Gulf of Mexico.
Rigs are tethered to the Gulf's floor and not nearly as secure in storms. They typically are evacuated before platforms, which are used to pump the oil once the well has been drilled.
"I hate to say with absolute certainty that this is the worst storm damage we've seen, but we have had more rigs reported with severe damage than any other storm I can recall in the last 15 years," said Marsh of ODS-Petrodata.
Marsh said the company's pre-hurricane projections had already called for a rig shortage by early next year, but the back-to-back storms could push that shortage to as early as November.