| Inventories | December 31, 2017 | December 31, 2016 |
| In millions of COP | ||
| Lands and buildings | 117,339 | 90,166 |
| Vehicles | 45,741 | 50,843 |
| Machinery | 16,252 | 11,045 |
| Total inventory cost | 179,332 | 152,054 |
| Impairment | (14,816) | (11,917) |
| Total inventories, net | 164,516 | 140,137 |