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Capital Stock | 6 Months Ended
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Jun. 30, 2014
Capital Stock | (10) CAPITAL STOCK We have authorized capital stock of 485.0 million shares which includes 475.0 million shares of common stock and 10.0 million shares of preferred stock. We currently have no preferred stock issued or outstanding. The following is a schedule of changes in the number of common shares outstanding since the beginning of 2013:
|  | Six Months Ended June 30, 2014 |  |  | Year Ended December 31, 2013 |
Beginning balance |  |  | 163,342,894 |  |  |  | 162,514,098 |
Public offering |  |  | 4,560,000 |  |  |  | ¾ |
SARs exercised |  |  | 188,305 |  |  |  | 278,916 |
Restricted stock granted |  |  | 266,453 |  |  |  | 401,122 |
Restricted stock units vested |  |  | 237,620 |  |  |  | 119,480 |
Treasury shares issued |  |  | 15,336 |  |  |  | 29,278 |
Ending balance |  |  | 168,610,608 |  |  |  | 163,342,894 |

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