These include heat from the partial combustion, a gaseous mixture called syngas that can be burned as fuel, and a heavy oil.
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Zhong Yu of Greenpeace told the BBC's Chinese service there was a heavy layer of oil covering the coastline.
Prior to the "Special Period" Cuba had been a heavy user of oil-based chemical fertilizers, and much of the land was heavily degraded, requiring years of careful manuring to restore fertility.
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There's also a call for the G20 this autumn to co-ordinate action in a bid to bring down inflationary pressures, which looks like a heavy hint that the oil price and speculation in other commodities should be constrained.
In November, a US-led decision saw Kedo announcing a suspension of the heavy fuel oil shipments, prompting some humanitarian worries about the impact inside North Korea of electricity cuts.
Heat the olive oil in a large heavy-bottomed skillet over high heat.
High oil prices, a heavy dose of government largesse and the gathering interest among consumers and politicians in weaning America from its petroleum habit have combined to set off a craze for ethanol among investors--from BillGatesBill Gates and Richard Branson on down.
Much of Venezuelan oil is also heavy oil, which is a lower grade.
Pour oil into a large, heavy-bottomed pot to a depth of 3 inches.
In a large, heavy skillet, warm the oil over medium-high heat.
Some thought he used magnets, others said heavy oil or porcelain chips or a substance he found in beehives.
But a strike by oil workers in Norway and heavy maintenance at North Sea fields has exacerbated the shortage this year and sent the price of Brent for immediate delivery much higher.
It will be hard to ignore the compelling symbiotic relationship between a glut of cheap North American gas and abundant heavy oil.
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The solar steam is being injected into wells to make it easier to extract heavy crude from a 120-year-old oil field in the Central Valley town of Coalinga.
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And a shelter in Lafayette, an inland city heavy with oil workers, got 200 more calls in the eight weeks after the oil disaster started than it did in the eight weeks before.
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That's the first step toward booting him and adopting a sensible plan for developing the country's enormous heavy oil reserves.
He added that the new partnership with oil and gas companies comes with "a heavy dose of trust but verify" reality.
The cuts in proven reserves that will result are a heavy price for a company that is already short of oil.
It could be a region where there was heavy extraction of resources, particularly oil, or ferrous metals as in the case of Chukotka.
Summarising his report, he said energy efficiency was "undervalued" and Northern Ireland needed a clear strategy to reduce its "heavy dependence on heating oil".
It avoided substituting Venezuelan heavy-tar oil used in Gulf Coast refineries with a similar product from near-by Canadian friends.
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Alberta, Canada is site of the world's largest extraction operations from oil sands, heavy earth laden with bitumen, a hydrocarbon-rich mineral.
The maker of tractors and other heavy equipment said that higher oil and commodity prices and a sluggish recovery in developed markets will remain challenges in 2011.
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The North says it is reactivating the mothballed nuclear plant to make up for a shortfall in electricity caused by the ending of aid shipments of heavy oil.
Meanwhile, the implementation of a 1994 agreement that ended North Korea's plutonium production in return for two new western-designed nuclear reactors and interim supplies of heavy fuel oil is badly behind schedule, largely as a result of North Korea's obstructive behaviour: the two new reactors were meant to start producing electricity by 2003, but the first concrete will not be poured before the end of next year.
Energy conservation, a shift to other fuels and a decline in the importance of heavy, energy-intensive industries have reduced oil consumption.
It's pitching its electric transmission systems and its electricity-sparing motors to the dirtiest industries--utilities, mining, oil and gas, and heavy manufacturing--as a way of becoming a little bit cleaner and more efficient.
Meantime, crude oil prices were sharply lower in a late sell off Monday on heavy profit taking.
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