NEW YORK ( TheStreet) -- Marathon Oil ( MRO) said Thursday it is moving forward with plans to spin off its downstream business, creating two independent energy companies.

Shares of Marathon Oil were surging by 12.3% to $45.51 in premarket trading Thursday.

Infosys ( INFY), India's second-largest exporter of software, said earnings in the third quarter rose, but the result came in weaker than expected because of a strong rupee.

Shares of the company tumbled by 6.1% to $72 in premarket trading Thursday.

American International Group ( AIG) Wednesday moved a step closer to completing its massive recapitalization at the end of this week.

Shares of AIG rose 0.6% to $58.72 in premarket trading.

Williams-Sonoma ( WSM) raised its fourth-quarter earnings and sales guidance following strong sales over the holiday period.

Williams-Sonoma shares rose 1.2% to $ 34.60 in premarket trading.

DragonWave ( DRWI) swung to a loss in its latest quarter.

No premarket quotes were available for DragonWave. The stock finished Wednesday's trading session at $8.66, down 2.3%.

EXFO ( EXFO) topped its own expectations for its fiscal first quarter.

No premarket quotes were available for EXFO. Shares of the company ended Wednesday at $7.57, up 5.3%.

American Capital Agency ( AGNC) said it expects earnings to exceed $1.20 a share for the fourth quarter; the average estimate of analysts polled by Thomson Reuters is for a profit of $1.29 a share in the December period.

Shares of the company fell 2.7% to $28.87 in premarket trading.

Portugal's successful bond sale and dividend buzz generated by a Wells Fargo analyst report and comments from JPMorgan Chase ( JPM) CEO Jamie Dimon about the bank's plans to eventually lift its payout gave sentiment about the financial sector a boost.

JPMorgan edged up 0.6% to $44.96, while Citigroup ( C) was higher by 0.4% to $5.10.

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-- Written by Andrea Tse in New York.

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