The top aftermarket NYSE gainers Wednesday were: Qihoo 360 Technology, Gol Linhas Aereas Inteligentes, Exterran Holdings, Maidenform Brands, Kodiak Oil & Gas Corp, Wabco Holdings, Trinity Industries, HollyFrontier Corp, Berry Petroleum and Oasis Petroleum.

Qihoo 360 Technology Co. Ltd. (NYSE:QIHU) shares surged 5.02 percent to $19.87 in post market trading session as its fourth quarter and fiscal 2011 revenue guidance topped estimates.

The company expects fourth quarter revenues to be in the range of $55 to $56 million fiscal 2011 revenues to be in the range of $160 to $161 million, while analysts’ are expecting the company to report fourth revenues of $47 million and fiscal 2011 revenues of $147 million.

Gol Linhas Aereas Inteligentes S.A. (NYSE:GOL) shares surged 4.72 percent to $8.21 in aftermarket trading session. The company stock plunged more than 3 percent in regular trading session.

Exterran Holdings, Inc. (NYSE:EXH) shares gained 3.1 percent to $11.99 in aftermarket trading session. The stock has a 52-week low of $8.07, a 52-week high of $25.42 and $744.90 million in market capitalization.

Maidenform Brands, Inc. (NYSE:MFB) shares advanced 2.88 percent to $17.86 in post market trading session.

Kodiak Oil & Gas Corp. (NYSE:KOG) shares gained 2.83 percent to $8.35 in post market trading after gaining more than 3 percent in regular trading session.

Wabco Holdings Inc. (NYSE:WBC) shares advanced 2.63 percent to $1.878 in post market trading session. The company stock plunged more than 5 percent in regular trading session.

Trinity Industries, Inc. (NYSE:TRN) shares gained 2.5 percent to $29.85 in aftermarket trading session.

HollyFrontier Corp. (NYSE:HFC) shares gained 2.34 percent to $25.40 in aftermarket trading session. The company stock plunged along with other U.S. refiners in regular trading session on the news that the Seaway pipeline would be reversed, which may boost the costs of crude and undermine some profitable operating margins from making fuel.

Berry Petroleum Co. (NYSE:BRY) shares advanced 2.32 percent to $43.26 in post market trading session.

Oasis Petroleum Inc. (NYSE:OAS) shares advanced 2.25 percent to $31.47 in post market trading session.

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