US may soon become world's top oil producer
'Fracking' a major factor driving domestic production higher
While expanded use of the method has unlocked enormous reserves of oil and gas, it has also raised concerns that contaminated water produced in the process could leak into drinking water.
The surge in oil production has other roots, as well:
— A long period of high oil prices has given drillers the cash and the motivation to spend the large sums required to develop new techniques and search new places for oil. Over the past decade, oil has averaged $69 a barrel. During the previous decade, it averaged $21.
— Production in the Gulf of Mexico, which slowed after BP's 2010 well disaster and oil spill, has begun to climb again. Huge recent finds there are expected to help growth continue.
— A natural gas glut forced drillers to dramatically slow natural gas exploration beginning about a year ago. Drillers suddenly had plenty of equipment and workers to shift to oil.
The most prolific of the new shale formations are in North Dakota and Texas. Activity is also rising in Oklahoma, Colorado, Ohio and other states.
Production from shale formations is expected to grow from 1.6 million barrels per day this year to 4.2 million barrels per day by 2020, according to Wood Mackenzie, an energy consulting firm. That means these new formations will yield more oil by 2020 than major oil suppliers such as Iran and Canada produce today.
U.S. oil and liquids production reached a peak of 11.2 million barrels per day in 1985, when Alaskan fields were producing enormous amounts of crude, then began a long decline. From 1986 through 2008, crude production fell every year but one, dropping by 44 percent over that period. The United States imported nearly 60 percent of the oil it burned in 2006.
By the end of this year, U.S. crude output will be at its highest level since 1998 and oil imports will be lower than at any time since 1992, at 41 percent of consumption.
"It's a stunning turnaround," Burkhard says.
Whether the U.S. supplants Saudi Arabia as the world's biggest producer will depend on the price of oil and Saudi production in the years ahead. Saudi Arabia sits on the world's largest reserves of oil, and it raises and lowers production to try to keep oil prices steady. Saudi output is expected to remain about flat between now and 2017, according to the International Energy Agency.
But Saudi oil is cheap to tap, while the methods needed to tap U.S. oil are very expensive. If the price of oil falls below $75 per barrel, drillers in the U.S. will almost certainly begin to cut back.
The International Energy Agency forecasts that global oil prices, which have averaged $107 per barrel this year, will slip to an average of $89 over the next five years — not a big enough drop to lead companies to cut back on exploration deeply.
Nor are they expected to fall enough to bring back the days of cheap gasoline. Still, more of the money that Americans spend at filling stations will flow to domestic drillers, which are then more likely to buy equipment here and hire more U.S. workers.
"Drivers will have to pay high prices, sure, but at least they'll have a job," Verleger says.
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