In 2005 North Dakota produced a total of about 100, 000 barrels of oil per day, while today the daily output is running at 250, 000 barrels from the Bakken deposit alone.

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Second, the average daily output of steel climbed 2.2% from the previous month.

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Rather than build a new factory elsewhere, the firm has tried to squeeze the most out of its existing investment at Betim: total daily output from the factory reached a record of 2, 345 cars in April this year (of which almost 1, 500 were Palios), up from only 750 a day in 1991.

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In fact, it's about five percent of daily output of all the OPEC producing countries.

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Also thanks to CemexNet, Zambrano can use a laptop or the IBM 770 ThinkPad computer in his office in the ten-story concrete-and-glass Cemex headquarters in downtown Monterrey to check on the daily production, kiln conditions, crushing, bagging and shipping output at any Cemex operation around the world.

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Daily output this month, according to the analysts at Mirae Assets Securities, could be as low as 1.85 million tons.

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Even so, many now worry that a series of attacks just might staunch the country's 8m bpd or so of daily output or disable its spare capacity.

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In its most recent earnings, Exxon, currently the largest producer, revealed 4.282 million barrels of daily output.

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Over the course of the past months, ethnically-based militias have targeted the industry by kidnapping foreign workers and destroying critical infrastructure, shutting down up to 20 percent Nigeria's total daily output.

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