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BALANCES AND TRANSACTIONS WITH RELATED COMPANIES (Details) $ in Thousands, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 ARS ($) | Dec. 31, 2020 ARS ($) | Dec. 31, 2019 ARS ($) | Dec. 31, 2021 USD ($)
Technical, financial and operational assistance agreement [abstract] |  |  |  |  |  |  |
Compensation for key management member |  | $ 205,773 |  | $ 208,885 |  | $ 292,039 |
Balances and transactions with related parties [Abstract] |  |  |  |  |  |  |
Accounts receivable |  | 357,140 |  | 626,368 |  |  |
Accounts payable |  | 3,541,211 |  | 4,432,205 |  |  |
Other receivables |  | 0 |  | 127,147 |  |  |
Other financial assets at fair value through profit or loss |  | 13,267,914 |  | 3,201,152 |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  | 2,889,311 |  | 241,608 |  | 1,224,607 |
Compensation for technical assistance |  | 2,181,985 |  | 2,159,162 |  | 2,352,434 |
Revenue for administrative services |  | 142 |  | 211 |  | 300 |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  | 291,753 |  | 365,787 |  | 400,596 |
Interest gain / Gain / (loss) on fair value |  | 248,511 |  |  |  |  |
Selling expenses | [1] | 1,169 |  |  |  |  |
Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 1,030,764 |  | 1,485,321 |  | 2,018,962 |
Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 2,564,882 |  | 1,584,836 |  | 553,826 |
Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 1,256,137 |  | 971,297 |  | 581,676 |
Private Debt Bonds with Related Parties [Member] |  |  |  |  |  |  |
Balances and transactions with related parties [Abstract] |  |  |  |  |  |  |
Other financial assets at fair value through profit or loss |  | 712,837 |  | 0 |  |  |
CT Barragan S.A. [Member] |  |  |  |  |  |  |
Balances and transactions with related parties [Abstract] |  |  |  |  |  |  |
Accounts receivable |  | 3,791 |  | 2,706 |  |  |
Accounts payable |  | 0 |  | 0 |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  | 0 |  |  |  |  |
Compensation for technical assistance |  | 0 |  |  |  |  |
Revenue for administrative services |  | 0 |  |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  | 0 |  |  |  |  |
Interest gain / Gain / (loss) on fair value |  | 248,511 |  |  |  |  |
Selling expenses | [1] | 0 |  |  |  |  |
CT Barragan S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  |  |  |  |
CT Barragan S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  |  |  |  |
CT Barragan S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 13,686 |  |  |  |  |
CT Barragan S.A. [Member] | Private Debt Bonds with Related Parties [Member] |  |  |  |  |  |  |
Balances and transactions with related parties [Abstract] |  |  |  |  |  |  |
Other financial assets at fair value through profit or loss |  | $ 712,837 |  |  |  |  |
Accrue annual rate |  | 4.00% |  |  |  |  | 4.00%
Fundacion TGS [Member] |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  | $ 0 |  |  |  |  |
Compensation for technical assistance |  | 0 |  |  |  |  |
Revenue for administrative services |  | 0 |  |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  | 0 |  |  |  |  |
Interest gain / Gain / (loss) on fair value |  | 0 |  |  |  |  |
Selling expenses | [1] | 1,169 |  |  |  |  |
Fundacion TGS [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  |  |  |  |
Fundacion TGS [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  |  |  |  |
Fundacion TGS [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  |  |  |  |
Petrolera Entre Lomas S.A. [Member] |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  |  |  | 0 |  |  |
Compensation for technical assistance |  |  |  | 0 |  |  |
Revenue for administrative services |  |  |  | 0 |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  |  |  | 0 |  |  |
Petrolera Entre Lomas S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  |  |  | 3,736 |  |  |
Petrolera Entre Lomas S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  |  |  | 0 |  |  |
Petrolera Entre Lomas S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  |  |  | 13,485 |  |  |
Pampa Comercializadora S.A. [Member] |  |  |  |  |  |  |
Balances and transactions with related parties [Abstract] |  |  |  |  |  |  |
Accounts receivable |  | 12,406 |  | 10,492 |  |  |
Accounts payable |  | 18,446 |  | 0 |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  | 0 |  | 0 |  | 0 |
Compensation for technical assistance |  | 0 |  | 0 |  | 0 |
Revenue for administrative services |  | 0 |  | 0 |  | 0 |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  | 0 |  | 0 |  | 0 |
Interest gain / Gain / (loss) on fair value |  | 0 |  |  |  |  |
Selling expenses | [1] | 0 |  |  |  |  |
Pampa Comercializadora S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 148,753 |  | 170,223 |  | 106,962 |
Pampa Comercializadora S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  | 0 |
Pampa Comercializadora S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  | 0 |
Oleoductos del Valle S.A. [Member] |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  | 0 |  | 0 |  | 0 |
Compensation for technical assistance |  | 0 |  | 0 |  | 0 |
Revenue for administrative services |  | 0 |  | 0 |  | 0 |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  | 0 |  | 0 |  | 0 |
Interest gain / Gain / (loss) on fair value |  | 0 |  |  |  |  |
Selling expenses | [1] | 0 |  |  |  |  |
Oleoductos del Valle S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 26,460 |  | 38,895 |  | 11,239 |
Oleoductos del Valle S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  | 0 |
Oleoductos del Valle S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  | 0 |
Central Termica Piedrabuena S.A. [Member] |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  |  |  | 0 |  | 0 |
Compensation for technical assistance |  |  |  | 0 |  | 0 |
Revenue for administrative services |  |  |  | 0 |  | 0 |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  |  |  | 0 |  | 0 |
Central Termica Piedrabuena S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  |  |  | 2,634 |  | 249,401 |
Central Termica Piedrabuena S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  |  |  | 0 |  | 0 |
Central Termica Piedrabuena S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  |  |  | 0 |  | 0 |
Transener S.A. [Member] |  |  |  |  |  |  |
Balances and transactions with related parties [Abstract] |  |  |  |  |  |  |
Accounts receivable |  | 0 |  | 45 |  |  |
Accounts payable |  | 32 |  | 50 |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  | 0 |  | 0 |  |  |
Compensation for technical assistance |  | 0 |  | 0 |  |  |
Revenue for administrative services |  | 0 |  | 0 |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  | 0 |  | 0 |  |  |
Interest gain / Gain / (loss) on fair value |  | 0 |  |  |  |  |
Selling expenses | [1] | 0 |  |  |  |  |
Transener S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  |  |
Transener S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  |  |
Transener S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 360 |  | 531 |  |  |
Experta ART [Member] |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  |  |  |  |  | 41,263 |
Compensation for technical assistance |  |  |  |  |  | 0 |
Revenue for administrative services |  |  |  |  |  | 0 |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  |  |  |  |  | 0 |
Experta ART [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  |  |  |  |  | 0 |
Experta ART [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  |  |  |  |  | 0 |
Experta ART [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  |  |  |  |  | 0 |
Link [Member] |  |  |  |  |  |  |
Balances and transactions with related parties [Abstract] |  |  |  |  |  |  |
Accounts receivable |  | 2,612 |  | 6,220 |  |  |
Accounts payable |  | 0 |  | 0 |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  | 0 |  | 0 |  | 0 |
Compensation for technical assistance |  | 0 |  | 0 |  | 0 |
Revenue for administrative services |  | 0 |  | 0 |  | 0 |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  | 0 |  | 0 |  | 0 |
Interest gain / Gain / (loss) on fair value |  | 0 |  |  |  |  |
Selling expenses | [1] | 0 |  |  |  |  |
Link [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  | 0 |
Link [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  | 0 |
Link [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 27,744 |  | 29,527 |  | 28,919 |
TGU [Member] |  |  |  |  |  |  |
Balances and transactions with related parties [Abstract] |  |  |  |  |  |  |
Accounts receivable |  | 0 |  | 0 |  |  |
Accounts payable |  | 16,350 |  | 20,217 |  |  |
Pampa Energia [Member] |  |  |  |  |  |  |
Balances and transactions with related parties [Abstract] |  |  |  |  |  |  |
Accounts receivable | [2] | 338,331 |  | 606,905 |  |  |
Accounts payable |  | 3,506,383 | [2] | 4,411,938 | [2] |  | $ 0.5
Other receivables |  |  |  | 127,147 |  |  |
Financial lease |  | 3,022,513 |  | 4,366,261 |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  | 2,889,311 |  | 241,608 |  | 1,183,345 |
Compensation for technical assistance |  | 2,181,985 |  | 2,159,162 |  | 2,352,434 |
Revenue for administrative services |  | 0 |  | 0 |  | 0 |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  | 291,753 |  | 365,787 |  | 400,596 |
Interest gain / Gain / (loss) on fair value |  | 0 |  |  |  |  |
Selling expenses | [1] | $ 0 |  |  |  |  |
Pampa Energia [Member] | From 12/28/2019 to 12/27/2020 [Member] |  |  |  |  |  |  |
Technical, financial and operational assistance agreement [abstract] |  |  |  |  |  |  |
Percentage of annual comprehensive income before results and income taxes |  | 6.50% |  |  |  |  |
Pampa Energia [Member] | From 12/28/2020 to 12/27/2021 [Member] |  |  |  |  |  |  |
Technical, financial and operational assistance agreement [abstract] |  |  |  |  |  |  |
Percentage of annual comprehensive income before results and income taxes |  | 6.00% |  |  |  |  |
Pampa Energia [Member] | From 12/28/2021 to 12/27/2022 [Member] |  |  |  |  |  |  |
Technical, financial and operational assistance agreement [abstract] |  |  |  |  |  |  |
Percentage of annual comprehensive income before results and income taxes |  | 5.50% |  |  |  |  |
Pampa Energia [Member] | From 12/28/2022 to 12/27/2023 [Member] |  |  |  |  |  |  |
Technical, financial and operational assistance agreement [abstract] |  |  |  |  |  |  |
Percentage of annual comprehensive income before results and income taxes |  | 5.00% |  |  |  |  |
Pampa Energia [Member] | From 12/28/2023 to 12/27/2024 and onwards [Member] |  |  |  |  |  |  |
Technical, financial and operational assistance agreement [abstract] |  |  |  |  |  |  |
Percentage of annual comprehensive income before results and income taxes |  | 4.50% |  |  |  |  |
Pampa Energia [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | $ 855,551 |  | 1,269,833 |  | 1,651,360 |
Pampa Energia [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 2,564,882 |  | 1,584,836 |  | 553,826 |
Pampa Energia [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 1,214,347 |  | 927,754 |  | 552,757 |
CIESA [Member] |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |
Gas purchase and others |  | 0 |  | 0 |  | 0 |
Compensation for technical assistance |  | 0 |  | 0 |  | 0 |
Revenue for administrative services |  | 142 |  | 211 |  | 300 |
Financial Results [Abstract] |  |  |  |  |  |  |
Interest expense |  | 0 |  | 0 |  | 0 |
Interest gain / Gain / (loss) on fair value |  | 0 |  |  |  |  |
Selling expenses | [1] | 0 |  |  |  |  |
CIESA [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  | 0 |
CIESA [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | 0 |  | 0 |  | 0 |
CIESA [Member] | Other Services [Member] |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |
Revenues |  | $ 0 |  | $ 0 |  | $ 0 |
[1] | Corresponds to donations expenses.
[2] | Accounts receivables includes Ps. 127,147 recorded as “Other receivables” as of December 31, 2020. Accounts payable includes Ps. 3,022,513 and Ps. 4,366,261 corresponding to the financial leasing recorded as “Loans” as of December 31, 2021 and 2020, respectively.

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