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Inventories | 12 Months Ended
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Dec. 31, 2018
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Inventories |
10. | INVENTORIES
|  | 2018 |  |  | 2017 |  |  | 2016 |
Refined products |  |  | 33,583 |  |  |  | 16,260 |  |  |  | 13,390 |
Crude oil and natural gas |  |  | 14,571 |  |  |  | 8,474 |  |  |  | 6,551 |
Products in process |  |  | 1,177 |  |  |  | 640 |  |  |  | 411 |
Raw materials, packaging materials and others |  |  | 3,993 |  |  |  | 1,775 |  |  |  | 1,456 |
|  |  | 53,324 | (1) |  |  | 27,149 | (1) |  |  | 21,808 | (1)
(1) | As of December 31, 2018, 2017 and 2016, the cost of inventories does not exceed their net realizable value.

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- Definition The entire disclosure for inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2018-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=2&date=2018-03-01&anchor=sect_Disclosure&doctype=Standard -URIDate 2018-03-16 + Details
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