10. INVENTORIES
| 2017 | 2016 | 2015 | ||||||||||
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Refined products |
16,260 | 13,390 | 10,709 | |||||||||
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Crude oil and natural gas |
8,474 | 6,551 | 7,155 | |||||||||
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Products in process |
640 | 411 | 169 | |||||||||
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Construction works in progress for third parties |
142 | 12 | 85 | |||||||||
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Raw materials, packaging materials and others |
1,775 | 1,456 | 1,140 | |||||||||
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| 27,291 | (1) | 21,820 | (1) | 19,258 | (1) | |||||||
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| (1) | As of December 31, 2017, 2016 and 2015, the cost of inventories does not exceed their net realizable value. |