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Provision for Asset Retirement Obligation - Fuel Tanks | 12 Months Ended
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Dec. 31, 2019
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Provision for Asset Retirement Obligation - Fuel Tanks | 21. Provision for Asset Retirement Obligation – Fuel Tanks The provision corresponds to the legal obligation to remove the subsidiary IPP’s underground fuel tanks located at Ipiranga-branded service stations after a certain use period (see Note 2.n). Changes in the provision for asset retirement obligation are as follows:
Balance as of December 31, 2016 |  |  | 77,564 |
Additions (new tanks) |  |  | 537 |
Expense with tanks removed |  |  | (15,432 | )
Accretion expense |  |  | 2,105 |
Balance as of December 31, 2017 |  |  | 64,774 |
Additions (new tanks) |  |  | 264 |
Expense with tanks removed |  |  | (12,752 | )
Accretion expense |  |  | 2,381 |
Balance as of December 31, 2018 |  |  | 54,667 |
Additions (new tanks) |  |  | 290 |
Expense with tanks removed |  |  | (5,456 | )
Accretion expense |  |  | 1,741 |
Balance as of December 31, 2019 |  |  | 51,242 |
Current |  |  | 3,847 |
Non-current |  |  | 47,395 |

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