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The Gulf is attractive for many reasons. Its oil fields are enormous; it straddles the world's biggest consumer of oil; it's in a politically stable part of the world; and drillers can easily tap into a vast network of pipelines and refineries. Also, despite industry complaints, the cost of royalties, taxes and regulation in the U.S. are among the lowest in the world. "Everybody wants to be there," says Mohammad Rahman, the lead Gulf analyst for Wood Mackenzie. By early 2012, there will be 40 deepwater rigs in the Gulf, up from 37 before the BP spill, according to Cinnamon Odell of ODS-Petrodata. BP received its first permit to drill in late October. The Gulf produces an average of 1.5 million barrels of oil per day, according to Wood Mackenzie. That's 27 percent of U.S. output and 8 percent of U.S. demand. Thanks to more accurate imaging technologies, drillers are able to see under geologic formations that used to confound geologists. In June, ExxonMobil Corp. said it found 700 million barrels of oil
-- one of the biggest discoveries in the Gulf in last decade. In September, Chevron and BP also announced major finds, thought to be in the hundreds of millions of barrels of oil. Many of the Gulf's recent discoveries are in a geologic formation known as the Lower Tertiary, formed between 23 million and 65 million years ago. Perdido, which is operated by Shell and owned jointly by Shell, Chevron and BP, is the first to produce oil from this formation. Analysts say it could hold 15 billion barrels of oil. As the BP disaster made clear, drilling in deep water presents difficulties and dangers. Last month a Chevron well in the deep waters off of Brazil ruptured and spilled 2,400 barrels of oil into the Atlantic after Chevron underestimated the pressure of the oil field it was tapping. Perdido only recently reached its monthly production target after a year of operation because of difficulties getting oil and gas from the seabed to the platform. New devices designed to separate oil and gas on the sea floor have not performed as well as Shell hoped. It has taken months of adjustments made by underwater robots and other equipment on the platform to fix the problems. Challenges like this have helped push the average cost of producing oil in the deepwater Gulf to $60 a barrel, according to IHS CERA, near the highest level ever. But with oil close to $100 a barrel, the expense is well worth it. After all 35 wells are drilled for Perdido, its owners will likely have spent $6.2 billion on the project, according to Wood Mackenzie. But along with the risks, the Gulf offers great rewards: Perdido could ultimately generate $39 billion in revenue and $16 billion in profits.
[Associated
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