| | 2017 | | 2016 | | ||
Transport and Logistics | | | | | | | |
Oleoducto Central S.A. | | | 683,496 | | | 683,496 | |
Exploration and Production | | | | | | | |
Hocol Petroleum Ltd. | | | 537,598 | | | 537,598 | |
Refining and Petrochemicals | | | | | | | |
Andean Chemical Ltd | | | 127,812 | | | 127,812 | |
Propilco S.A | | | 108,137 | | | 108,137 | |
| | | 1,457,043 | | | 1,457,043 | |
Less impairment Hocol Petroleum Ltd. | | | (297,121) | | | (297,121) | |
| | | 1,159,922 | | | 1,159,922 | |