| At December 31, 2013, future minimum payments due under capital leases were: | ||
| Millions | ||
| of Dollars | ||
| 2014 | $ | 127 |
| 2015 | 80 | |
| 2016 | 80 | |
| 2017 | 80 | |
| 2018 | 80 | |
| Remaining years | 769 | |
| Total | 1,216 | |
| Less: portion representing imputed interest | (294) | |
| Capital lease obligations | $ | 922 |