U.S. refiners that turned to cheaper, dirtier crude oil in recent years in a bid to boost profits are seeing the strategy backfire as supplies of the oil dwindle.
For full story, click here
Heavy Oil
U.S. refiners that turned to cheaper, dirtier crude oil in recent years in a bid to boost profits are seeing the strategy backfire as supplies of the oil dwindle.
For full story, click here
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