NEW YORK (TheStreet) -- Oil prices popped back up above $100 a barrel Tuesday on supply concerns and a rise in global sentiment thanks to feelings of real progress in the European Union.

West Texas Intermediate (WTI) light sweet crude oil for March delivery was spiking $1.15 to $99.93 a barrel after touching $100.69 earlier, as global equities rose on news that European Union leaders have agreed on a new fiscal union pact and signed off on details of a permanent bailout fund for the euro zone.

March Brent futures were rising $1.31 to $112.06 a barrel.

The earlier spike for WTI had been so sharp that at one point analysts had attributed it to a "fat finger" trade.

Vote: Where will oil prices finish in 2012?

The price rise Tuesday also came on the back of supply concerns out of South Sudan, which has shown no signs of restarting production after shutting down due to a protest of a transit-fee dispute with neighboring Sudan. Earlier, Sudan had seized South Sudan's export cargoes. Though it has released them, South Sudan didn't seem ready yet to restart output, cutting about 350,000 barrels a day of oil exports from the global markets.

Meanwhile, the Organization of the Petroleum Exporting Countrie's (OPEC) Secretary General Abdalla Salem El-Badri told CNBC that even though there is at the moment no shortage of global oil supply, the European Union's decision to ban all Iranian crude exports in response to its nuclear development plans would most certainly lead to a spike in prices.

"To take out 400-500,000 barrels a day in a matter of days, this will affect the price," he said. "Of course the price will go up."

On Tuesday, an undercurrent of worries about Portugal's still elevated ten-year government bond yield and Greece's impasse on debt swap talks with private creditors had continued to threaten the upside momentum.

Energy stocks were trading mixed.


(BP) - Get Report

was rising 1.4% to $44.75;


(XOM) - Get Report

was falling 1% to $84.60;


(APA) - Get Report

was higher by 0.6% to $99.40;


(COP) - Get Report

was up 0.5% to $69.05;


(HAL) - Get Report

was up 0.9% to $37;

Weatherford International

(WFT) - Get Report

was up 0.6% to $17.02; and

Baker Hughes


was adding 1.2% to $50.

-- Written by Andrea Tse in New York.

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