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v3.19.1

Basis of Preparation of the Consolidated Financial Statements (Tables) | 12 Months Ended
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Dec. 31, 2018
Text block [abstract] |
Detailed Information About Property, Plant and Equipment | Property, plant and equipment, other than those related to oil and gas exploration and production activities, are depreciated using the straight-line method, over the years of estimated useful life of the assets, as follows:
|  | Years of Estimated Useful Life |
Buildings and other constructions |  |  | 50 |
Refinery equipment and petrochemical plants |  |  | 20-25 |
Infrastructure of natural gas distribution |  |  | 20-50 |
Transportation equipment |  |  | 5-25 |
Furniture, fixtures and installations |  |  | 10 |
Selling equipment |  |  | 10 |
Electric power generation facilities |  |  | 15-20 |
Other property |  |  | 10 |
Schedule of Reclassification of Contract Assets and Liabilities | The Group has adopted the standard’s terminology, identifying “Contract Assets” and “Contract Liabilities”. Thus, certain reclassifications have been made in the comparative amounts of the statements of financial position for the fiscal year ended December 31, 2017 and 2016, as shown below:
|  | Amounts as of December 31, 2017 |  |  | Reclassifications IFRS 15 |  |  | Amounts restated as of December 31, 2017 |
|  | Noncurrent |  |  | Current |  |  | Noncurrent |  |  | Current |  |  | Noncurrent |  |  | Current |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventories |  |  | — |  |  |  | 27,291 |  |  |  | — |  |  |  | (142 | ) |  |  | — |  |  |  | 27,149 |
Contract Assets |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 142 |  |  |  | — |  |  |  | 142 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts Payable |  |  | 1,655 |  |  |  | 47,371 |  |  |  | (1,470 | ) |  |  | (1,460 | ) |  |  | 185 |  |  |  | 45,911 |
Contract Liabilities |  |  | — |  |  |  | — |  |  |  | 1,470 |  |  |  | 1,460 |  |  |  | 1,470 |  |  |  | 1,460 |
|  | Amounts as of December 31, 2016 |  |  | Reclassifications IFRS 15 |  |  | Amounts restated as of December 31, 2016 |
|  | Noncurrent |  |  | Current |  |  | Noncurrent |  |  | Current |  |  | Noncurrent |  |  | Current |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventories |  |  | — |  |  |  | 21,820 |  |  |  | — |  |  |  | (12 | ) |  |  | — |  |  |  | 21,808 |
Contract Assets |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 12 |  |  |  | — |  |  |  | 12 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts Payable |  |  | 2,187 |  |  |  | 41,595 |  |  |  | — |  |  |  | (14 | ) |  |  | 2,187 |  |  |  | 41,581 |
Contract Liabilities |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 14 |  |  |  | — |  |  |  | 14 |

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- Definition The explanation of the significant changes in the contract assets and the contract liabilities. [Refer: Contract assets; Contract liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2018-01-01 -Paragraph 118 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=15&date=2018-03-01&anchor=para_118&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The tabular disclosure of property plant and equipment estimated useful life. + References No definition available. + Details
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- Definition Text block [abstract] + References No definition available. + Details
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