The price of crude oil has surged past $120 a barrel.
Supply concerns from Opec members
Threats to pipelines in
"People are piling back up on crude oil due to the weakness of the dollar and production issues in Nigeria," Phil Flynn, an analyst at Alaron Trading in Chicago, told Reuters.
"But it also looks like momentum play after Friday's positive reaction to the unemployment report."
This development helped counter concerns that the weaker
And a Monday report from the Institute for Supply Management showed the
The cost of oil
The dollar fell broadly on Monday, however, as foreign exchange investors decided the world's biggest economy was still struggling.
Further support for oil came from
In
Skirmishes between Kurdish and Turkish fighters in northern
Opec nations have refused to be persuaded by consumer nations to increase production, blaming speculators for swelling prices.
'Perfect storm'
Fadel Gheit, a senior energy analyst at Oppenheimer and Company, told Al Jazeera that it was the "perfect storm".
"Everything that could push oil prices higher has taken place in the last 12 months, and more so in the last six months.
"Excessive speculation, increased demand, fear of potential supply disruption and lack of access to resources."
Gheit said that it was surprising that the rising price had not led to a greater slowdown in the global economy.
"This is a commodity that is driven basically by speculation.
"As long as governments let this continue, I think oil prices could go much higher."
PHOTO CAPTION:
Crude oil price hits $120
Al-Jazeera