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FINANCIAL RISK MANAGEMENT, Foreign Exchange Risk (Details) - Foreign Exchange Risk [Member] - ARS ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Foreign exchange risk [Abstract]
Percentage of funds denominated in US dollars to mitigate foreign exchange risk	88.00%
Percentage appreciation (depreciation) of US Dollar against Argentine Peso	10.00%
Pretax income	$ 2,564,896	$ 1,138,128	$ 399,846
U.S. Dollars [Member] | Liquids Production and Commercialization [Member]
Foreign exchange risk [Abstract]
Percentage of revenue	87.00%	77.00%	76.00%
Argentine Pesos [Member] | Liquids Production and Commercialization [Member]
Foreign exchange risk [Abstract]
Percentage of revenue	53.00%	59.00%	51.00%

X

- Definition

The percentage of the entity's revenue. [Refer: Revenue]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 8
-IssueDate 2019-01-01
-Paragraph 34
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2019-en-r&anchor=para_34&doctype=Standard
-URIDate 2019-03-27

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X

- Definition

Refers to decrease in the amount of profit (loss) due to foreign exchange transaction.

+ References

No definition available.

+ Details

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- References

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- Definition

Refers to the percentage increase (decrease) in US dollar rate against argentine peso.

+ References

No definition available.

+ Details

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- Definition

Refers to the percentage of funds denominated in US dollars to mitigate the foreign exchange risk.

+ References

No definition available.

+ Details

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- Details

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- Details

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