By Houston Business Journal

Shares of Flotek Industries Inc. were among the biggest gainers on the New York Stock Exchange Wednesday.

Houston-based Flotek (NYSE: FTK) shares gained more than 15 percent, or 80 cents, to close at $6.07 in heavy volume of more than 4 million shares, after reaching as high as $6.23 during the trading session. It was the third-highest percentage gain on the exchange that day.

Shares of the drilling services company were one of the biggest movers on the NYSE in 2010, gaining more than 400 percent for the year when the stock closed at $5.45.

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