| The following summarizes our stock-settled Performance Share Program activity for the year ended December 31, 2013. | |||||||
| Weighted-Average | Millions of Dollars | ||||||
| Stock Units | Grant-Date Fair Value | Total Fair Value | |||||
| Outstanding at December 31, 2012 | 5,184,284 | $ | 51.54 | ||||
| Granted | 7,650 | 60.00 | |||||
| Forfeited | - | - | |||||
| Issued | (290,748) | $ | 18 | ||||
| Outstanding at December 31, 2013 | 4,901,186 | $ | 51.60 | ||||
| Not Vested at December 31, 2013 | 1,150,628 | $ | 52.83 | ||||
| The following summarizes our cash-settled Performance Share Program activity for the year ended December 31, 2013: | |||||||
| Weighted-Average | Millions of Dollars | ||||||
| Stock Units | Grant-Date Fair Value | Total Fair Value | |||||
| Outstanding at December 31, 2012 | - | $ | - | ||||
| Granted | 128,567 | 58.08 | |||||
| Forfeited | - | - | |||||
| Settled | (3,791) | $ | - | ||||
| Outstanding at December 31, 2013 | 124,776 | $ | 58.08 | ||||
| Not Vested at December 31, 2013 | 82,793 | $ | 58.08 | ||||