The top after-market NYSE gainers Thursday were Endeavor International Corp, Teekay Tankers Ltd, Dean Foods Co, Cabot Oil & Gas Corp and Gamestop Corp. The top after-market NYSE losers were Advanced Micro Devices Inc, Quicksilver Resources Inc, Office Depot, Inc, Hertz Global Holdings, Inc and Range Resources Corp.

Gainers

Endeavour International Corp. (END) shares climbed 6.31 percent to $8.97 in post-market trading. The company stock plunged nearly 6 percent in regular trading.

Teekay Tankers Ltd. (TNK) shares surged 3.38 percent to $3.67 in post-market trading. The stock has a 52-week low of $3.36, a 52-week high of $6.33 and $219.74 million in market capitalization.

Dean Foods Co. (DF) shares gained 2.39 percent to $15.00 in post-market trading. The company stock plunged more than 2 percent in regular trading after analysts’ at UBS lowered price target on shares of DF to $15.50 from $17.50 with a neutral rating.

Cabot Oil & Gas Corp. (COG) shares gained 2.25 percent to $45.35 in post-market trading. The stock has a 52-week low of $28.84, a 52-week high of $47.25 and $9.31 billion in market capitalization.

Gamestop Corp. (GME) shares rose 2.05 percent to $23.33 in post-market trading. The stock has a 52-week low of $15.32, a 52-week high of $26.66 and $2.82 billion in market capitalization.

Losers

Advanced Micro Devices, Inc. (AMD) shares tumbled 9.06 percent to $2.91 in post-market trading after lowering its third quarter revenue guidance. The company currently expects third quarter revenue to decrease approximately 10 percent sequentially compared to its earlier estimate of 1 percent, plus or minus 3 percent, sequential fall.

Quicksilver Resources Inc. (KWK) shares plunged 4.56 percent to $4.53 in post-market trading. The stock has a 52-week low of $2.93, a 52-week high of $8.87 and $821.62 million in market capitalization..

Office Depot, Inc. (ODP) shares plunged 4.50 percent to $2.26 in post-market trading. The company stock surged nearly 5 percent in regular trading.

Hertz Global Holdings, Inc. (HTZ) shares plunged 4.37 percent to $14.25 in post-market trading. The stock has a 52-week low of $9.95, a 52-week high of $16.64 and $6.26 billion in market capitalization.

Range Resources Corp. (RRC) shares fell 4.26 percent to $70.16 in post-market trading. The company stock surged more than 4.5 percent in regular trading Thursday after announcing that production volumes exceeded the upper range of guidance for the third quarter production averaging 790 Mmcfe net per day, a 47 percent increase over the prior-year quarter and 10 percent greater than second quarter 2012.

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