The United States has set preliminary anti-dumping duties ranging from 36.53 percent to 99.14 percent on Chinese-made steel pipe used in wells to extract oil from the earth, a source familiar with the situation said on Thursday.

Oil prices fell 1 percent on Thursday, as doubts about the pace of economic recovery dented optimism toward a rebound in fuel demand.

Crude oil has replaced the dollar as the new reserve currency, according to Kevin Kerr, president & chief trading officer for Kerr Trading International.

The International Energy Agency will "substantially" downgrade its long-term oil demand forecast in its annual energy outlook next week, the second cut in a row, the Wall Street Journal reported on Wednesday.

Oil prices rose 1 percent on Wednesday, extending the previous session's gain, after a U.S. government report showed a surprise decline in crude stocks in the world's largest consumer.

Few people have been as vocal as former vice president Al Gore about the urgency of global warming and the need to reinvent the way the world produces and consumes energy. And few have put as much money behind their advocacy as Mr. Gore and are as well positioned to profit from this green transformation, if and when it comes.

Chesapeake Energy said on Monday its quarterly profit fell sharply from a year ago as lower natural gas prices hurt results and the year-ago period was boosted by a large gain related to hedging.

The United Auto Workers union had given local unions until Monday to complete voting. But a person briefed on the voting said Saturday that the contract changes have been rejected by large margins.

Oil rose nearly 2 percent Tuesday after data showed U.S. factory orders in September expanded at a quicker pace than expected, signaling potential for more fuel demand in the world's biggest energy consumer.

Denbury Resources  has agreed to buy Encore Acquisition for $3.2 billion to create one of North America's largest oil production and exploration companies.

Stocks tumbled Friday, giving back all of the gains from the prior session, as worries about the recovery escalated after a pair of reports on the consumer and as the dollar rallied. The Dow shed 250 points, or 2.5 percent, but finished flat for the month.

Stocks tumbled Friday, giving back all of the gains from the prior session, as worries about the recovery escalated after a pair of reports on the consumer.

Stocks opened lower Friday after reports showed consumer sentiment and spending have declined.

Duke Energy reported Friday that sales to industrial customers has begun to stabilize, another signal that better economic conditions have led to growing power consumption.

Futures indicated a lower open for Wall Street on Friday, the last trading day of October, after the Dow experienced its best day in 3 months Thursday after GDP data showed the world's biggest economy exited recession in the third quarter.