v2.4.0.6

Stockholder's Equity (Tables) | 12 Months Ended
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Dec. 31, 2012
Notes To Financial Statements [Abstract] |
Common stock activity | The following summarizes Common Stock activity for each of the years ended December 31, 2010, 2011 and 2012 (in thousands):
|  | Common Shares
|  | Issued |  | Treasury |  | Outstanding
Balance at December 31, 2009 |  | 252,627 |  | (118) |  | 252,509
| Common Stock Issued Under Equity Compensation Plans |  | 1,482 |  | - |  | 1,482
| Treasury Stock Purchased (1) |  | - |  | (115) |  | (115)
| Common Stock Issued Under Employee Stock Purchase Plan |  | 114 |  | - |  | 114
| Treasury Stock Issued Under Other Equity Compensation Plans |  | - |  | 87 |  | 87
Balance at December 31, 2010 |  | 254,223 |  | (146) |  | 254,077
| Common Stock Issued Under Equity Compensation Plans |  | 1,395 |  | - |  | 1,395
| Treasury Stock Purchased (1) |  | - |  | (267) |  | (267)
| Common Stock Issued Under Employee Stock Purchase Plan |  | 135 |  | - |  | 135
| Treasury Stock Issued Under Other Equity Compensation Plans |  | - |  | 109 |  | 109
| Common Stock Sold |  | 13,570 |  | - |  | 13,570
Balance at December 31, 2011 |  | 269,323 |  | (304) |  | 269,019
| Common Stock Issued Under Equity Compensation Plans |  | 2,471 |  | - |  | 2,471
| Treasury Stock Purchased (1) |  | - |  | (575) |  | (575)
| Common Stock Issued Under Employee Stock Purchase Plan |  | 164 |  | - |  | 164
| Treasury Stock Issued Under Other Equity Compensation Plans |  | - |  | 553 |  | 553
Balance at December 31, 2012 |  | 271,958 |  | (326) |  | 271,632
(1) | Represents shares that were withheld by, or returned to, EOG in satisfaction of tax withholding obligations that arose upon the exercise of employee stock options or stock-settled stock appreciation rights, the vesting of restricted stock or restricted stock unit grants or in payment of the exercise price of employee stock options.

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