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BALANCES AND TRANSACTIONS WITH RELATED COMPANIES (Details) $ in Thousands, $ in Millions |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Oct. 05, 2011 USD ($) | Dec. 31, 2017 ARS ($) | Dec. 31, 2016 ARS ($) | Dec. 31, 2015 ARS ($) | Dec. 31, 2017 USD ($) | Aug. 08, 2017 ARS ($)
Technical, financial and operational assistance agreement [abstract] |  |  |  |  |  |  |  |  |
Compensation for key management member |  |  | $ 52,643 |  | $ 39,409 |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 24,679 |  | 117,716 |  |  |  |
Accounts payable |  |  | 994,024 |  | 889,546 |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 182,560 |  | 277,603 |  | $ 153,467 |  |
Compensation for technical assistance |  |  | 354,518 |  | 168,008 |  | 52,481 |  |
Revenue for administrative services |  |  | 1,489 |  | 122 |  | 122 |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 65,076 |  | 24,464 |  |  |  |
Interest earned |  |  |  |  |  |  | 11,348 |  |
Other Operating Income [Abstract] |  |  |  |  |  |  |  |  |
Acquisition of the rights of the arbitration proceeding |  |  | 0 |  | 0 |  | 324,390 |  |
Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 49,977 |  | 37,484 |  | 28,857 |  |
Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 57,234 |  | 368,528 |  | 337,782 |  |
Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 76,281 |  | 182,185 |  | 102,598 |  |
Compania Mega S.A. [Member] |  |  |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  |  |  | 0 | [1] | 0 |  |
Compensation for technical assistance |  |  |  |  | 0 | [1] | 0 |  |
Revenue for administrative services |  |  |  |  | 0 | [1] | 0 |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses | [1] |  |  |  | 0 |  |  |  |
Interest earned |  |  |  |  |  |  | 0 |  |
Other Operating Income [Abstract] |  |  |  |  |  |  |  |  |
Acquisition of the rights of the arbitration proceeding |  |  |  |  |  |  | 0 |  |
Compania Mega S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 1,641 | [1] | 1,176 |  |
Compania Mega S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 82,590 | [1] | 63,591 |  |
Compania Mega S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 17 | [1] | 30 |  |
Petrobras Global Trading BV [Member] |  |  |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  |  |  |  |  | 0 |  |
Compensation for technical assistance |  |  |  |  |  |  | 0 |  |
Revenue for administrative services |  |  |  |  |  |  | 0 |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest earned |  |  |  |  |  |  | 0 |  |
Other Operating Income [Abstract] |  |  |  |  |  |  |  |  |
Acquisition of the rights of the arbitration proceeding |  |  |  |  |  |  | 0 |  |
Petrobras Global Trading BV [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  | 0 |  |
Petrobras Global Trading BV [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  | 44,058 |  |
Petrobras Global Trading BV [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  | 0 |  |
Braskem Netherlands B.V. [Member] |  |  |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  |  |  | 0 | [1] | 0 |  |
Compensation for technical assistance |  |  |  |  | 0 | [1] | 0 |  |
Revenue for administrative services |  |  |  |  | 0 | [1] | 0 |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses | [1] |  |  |  | 0 |  |  |  |
Interest earned |  |  |  |  |  |  | 0 |  |
Other Operating Income [Abstract] |  |  |  |  |  |  |  |  |
Acquisition of the rights of the arbitration proceeding |  |  |  |  |  |  | 0 |  |
Braskem Netherlands B.V. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 0 | [1] | 0 |  |
Braskem Netherlands B.V. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 19,511 | [1] | 132,101 |  |
Braskem Netherlands B.V. [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 0 | [1] | 0 |  |
Petroleo Brasileiro [Member] |  |  |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  |  |  | 0 | [1] | 0 |  |
Compensation for technical assistance |  |  |  |  | 0 | [1] | 0 |  |
Revenue for administrative services |  |  |  |  | 0 | [1] | 0 |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses | [1] |  |  |  | 0 |  |  |  |
Interest earned |  |  |  |  |  |  | 0 |  |
Other Operating Income [Abstract] |  |  |  |  |  |  |  |  |
Acquisition of the rights of the arbitration proceeding |  |  |  |  |  |  | 0 |  |
Petroleo Brasileiro [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 0 | [1] | 0 |  |
Petroleo Brasileiro [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 265,236 | [1] | 95,618 |  |
Petroleo Brasileiro [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 0 | [1] | 0 |  |
Petrolera Pampa S.A. [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 0 |  | 0 |  |  |  |
Accounts payable |  |  | 0 |  | 2,634 |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 24,850 |  | 165,771 |  | 41,332 |  |
Compensation for technical assistance |  |  | 0 |  | 0 |  | 0 |  |
Revenue for administrative services |  |  | 0 |  | 0 |  | 0 |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 0 |  | 0 |  |  |  |
Interest earned |  |  |  |  |  |  | 0 |  |
Other Operating Income [Abstract] |  |  |  |  |  |  |  |  |
Acquisition of the rights of the arbitration proceeding |  |  |  |  |  |  | 0 |  |
Petrolera Pampa S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  | 0 |  |
Petrolera Pampa S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  | 0 |  |
Petrolera Pampa S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  | 0 |  |
Refinor S.A. [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 0 |  | 0 |  |  |  |
Accounts payable |  |  | 3,534 |  | 0 |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 3,534 |  |  |  |  |  |
Compensation for technical assistance |  |  | 0 |  |  |  |  |  |
Revenue for administrative services |  |  | 0 |  |  |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 0 |  |  |  |  |  |
Refinor S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  |  |  |  |  |
Refinor S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  |  |  |  |  |
Refinor S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  |  |  |  |  |
Pampa Comercializadora S.A. [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 1,882 |  | 943 |  |  |  |
Accounts payable |  |  | 0 |  | 0 |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 0 |  | 0 |  |  |  |
Compensation for technical assistance |  |  | 0 |  | 0 |  |  |  |
Revenue for administrative services |  |  | 0 |  | 0 |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 0 |  | 0 |  |  |  |
Pampa Comercializadora S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 6,647 |  | 3,603 |  |  |  |
Pampa Comercializadora S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  |  |  |
Pampa Comercializadora S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  |  |  |
Petrolera Entre Lomas S.A. [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 0 |  | 17 |  |  |  |
Accounts payable |  |  | 0 |  | 0 |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 11,017 |  | 24,740 |  |  |  |
Compensation for technical assistance |  |  | 0 |  | 0 |  |  |  |
Revenue for administrative services |  |  | 0 |  | 0 |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 0 |  | 0 |  |  |  |
Petrolera Entre Lomas S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  |  |  |
Petrolera Entre Lomas S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  |  |  |
Petrolera Entre Lomas S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 188 |  |  |  |
WEB S.A. [Member] |  |  |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  |  |  | 3,325 |  |  |  |
Compensation for technical assistance |  |  |  |  | 0 |  |  |  |
Revenue for administrative services |  |  |  |  | 0 |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  |  |  | 0 |  |  |  |
WEB S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 0 |  |  |  |
WEB S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 0 |  |  |  |
WEB S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 0 |  |  |  |
Oleoductos del Valle S.A. [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 1,338 |  | 297 |  |  |  |
Accounts payable |  |  | 0 |  | 0 |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 0 |  | 0 |  |  |  |
Compensation for technical assistance |  |  | 0 |  | 0 |  |  |  |
Revenue for administrative services |  |  | 0 |  | 0 |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 0 |  | 0 |  |  |  |
Oleoductos del Valle S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 4,618 |  | 2,418 |  |  |  |
Oleoductos del Valle S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  |  |  |
Oleoductos del Valle S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 958 |  | 0 |  |  |  |
Petrouruguay S.A. [Member] |  |  |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others | [1] |  |  |  | 0 |  |  |  |
Compensation for technical assistance | [1] |  |  |  | 0 |  |  |  |
Revenue for administrative services | [1] |  |  |  | 0 |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses | [1] |  |  |  | 0 |  |  |  |
Petrouruguay S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues | [1] |  |  |  | 551 |  |  |  |
Petrouruguay S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues | [1] |  |  |  | 51 |  |  |  |
Petrouruguay S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues | [1] |  |  |  | 0 |  |  |  |
Central Termica Piedrabuena S.A. [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 5,189 |  | 1,224 |  |  |  |
Accounts payable |  |  | 0 |  | 0 |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 0 |  | 0 |  |  |  |
Compensation for technical assistance |  |  | 0 |  | 0 |  |  |  |
Revenue for administrative services |  |  | 0 |  | 0 |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 0 |  | 0 |  |  |  |
Central Termica Piedrabuena S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 11,031 |  | 7,618 |  |  |  |
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 |  |  |  |
Central Temica Loma La Lata S.A. [Member] |  |  |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 0 |  |  |  |  |  |
Compensation for technical assistance |  |  | 0 |  |  |  |  |  |
Revenue for administrative services |  |  | 0 |  |  |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 0 |  |  |  |  |  |
Central Temica Loma La Lata S.A. [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  |  |  |  |  |
Central Temica Loma La Lata S.A. [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  |  |  |  |  |
Central Temica Loma La Lata S.A. [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 244 |  |  |  |  |  |
Transener S.A. [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 30 |  | 727 |  |  |  |
Accounts payable |  |  | 0 |  | 0 |  |  |  |
Experta ART [Member] |  |  |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 7,326 |  | 2,346 |  |  |  |
Compensation for technical assistance |  |  | 0 |  | 0 |  |  |  |
Revenue for administrative services |  |  | 0 |  | 0 |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 0 |  | 0 |  |  |  |
Experta ART [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  |  |  |
Experta ART [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  |  |  |
Experta ART [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  | 0 |  |  |  |
Link [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 520 |  | 425 |  |  |  |
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 expenses |  |  | 0 |  | 0 |  |  |  |
Interest earned |  |  |  |  |  |  | 0 |  |
Other Operating Income [Abstract] |  |  |  |  |  |  |  |  |
Acquisition of the rights of the arbitration proceeding |  |  |  |  |  |  | 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 |  |  | 4,587 |  | 3,924 |  | 3,087 |  |
EGS [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 0 |  | 0 |  |  |  |
Accounts payable |  |  | 460 |  | 602 |  |  |  |
TGU [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 0 |  | 0 |  |  |  |
Accounts payable |  |  | $ 2,968 |  | 2,529 |  |  |  |
CTG [Member] |  |  |  |  |  |  |  |  |
Technical, financial and operational assistance agreement [abstract] |  |  |  |  |  |  |  |  |
Cash payments for acquisition |  |  |  |  |  |  |  |  | $ 100
Petrobras Argentina [Member] |  |  |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  |  |  |  |  | 112,135 |  |
Compensation for technical assistance |  |  |  |  |  |  | 52,481 |  |
Revenue for administrative services |  |  |  |  |  |  | 0 |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest earned |  |  |  |  |  |  | 0 |  |
Other Operating Income [Abstract] |  |  |  |  |  |  |  |  |
Acquisition of the rights of the arbitration proceeding |  |  |  |  |  |  | 0 |  |
Petrobras Argentina [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  | 27,681 |  |
Petrobras Argentina [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  | 2,414 |  |
Petrobras Argentina [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
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Pampa Energia [Member] |  |  |  |  |  |  |  |  |
Technical, financial and operational assistance agreement [abstract] |  |  |  |  |  |  |  |  |
Technical assistance agreement term renewal |  |  | 3 years |  |  |  |  |  |
Percentage of annual comprehensive profits for providing operation and maintenance services |  |  | 7.00% |  |  |  |  |  |
Loan granted to related party |  | $ 26.0 |  |  |  |  |  |  |
Automatic renewal period of additional term |  |  | 1 year |  |  |  |  |  |
Interest rate |  |  | 6.80% |  |  |  |  | 6.80% |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | $ 15,681 |  | 114,039 |  |  |  |
Accounts payable |  |  | 987,062 | [2] | 883,781 | [2] |  | $ 3.0 |
Financial lease |  |  | 891,365 |  | 848,181 |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 135,833 |  | 81,421 | [3] | 0 |  |
Compensation for technical assistance |  |  | 354,518 |  | 168,008 | [3] | 0 |  |
Revenue for administrative services |  |  | 0 |  | 0 | [3] | 0 |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 65,076 |  | 24,464 | [3] |  |  |
Interest earned |  |  |  |  |  |  | 11,348 |  |
Other Operating Income [Abstract] |  |  |  |  |  |  |  |  |
Acquisition of the rights of the arbitration proceeding | [4] |  |  |  |  |  | 324,390 |  |
Pampa Energia [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 27,681 |  | 21,653 | [3] | 0 |  |
Pampa Energia [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 57,234 |  | 1,140 | [3] | 0 |  |
Pampa Energia [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 70,492 |  | 178,056 | [3] | 0 |  |
UT [Member] |  |  |  |  |  |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 0 |  |  |  |  |  |
Compensation for technical assistance |  |  | 0 |  |  |  |  |  |
Revenue for administrative services |  |  | 1,397 |  |  |  |  |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 0 |  |  |  |  |  |
UT [Member] | Natural Gas Transportation [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
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UT [Member] | Production and Commercialization of Liquids [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  |  |  |  |  |
UT [Member] | Other Services [Member] |  |  |  |  |  |  |  |  |
Detail of Significant Transactions with Related Parties [abstract] |  |  |  |  |  |  |  |  |
Revenues |  |  | 0 |  |  |  |  |  |
CIESA [Member] |  |  |  |  |  |  |  |  |
Balances and transactions with related parties [abstract] |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | 39 |  | 44 |  |  |  |
Accounts payable |  |  | 0 |  | 0 |  |  |  |
Costs [Abstract] |  |  |  |  |  |  |  |  |
Gas purchase and others |  |  | 0 |  | 0 |  | 0 |  |
Compensation for technical assistance |  |  | 0 |  | 0 |  | 0 |  |
Revenue for administrative services |  |  | 92 |  | 122 |  | 122 |  |
Financial Results [Abstract] |  |  |  |  |  |  |  |  |
Interest expenses |  |  | 0 |  | 0 |  |  |  |
Interest earned |  |  |  |  |  |  | 0 |  |
Other Operating Income [Abstract] |  |  |  |  |  |  |  |  |
Acquisition of the rights of the arbitration proceeding |  |  |  |  |  |  | 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] | As of July 27, 2016, those companies are not considered as related parties due to the acquisition of P etrobras Argentina shares by P ampa Energia as described in Note 1.
[2] | Accounts payable includes Ps. 891,365 and Ps. 848,181 corresponding to the financial leasing recorded as "Loans" as of December 31, 2017 and 2016, respectively.
[3] | Until July, 27, 2016 includes transactions with P etrobras Argentina S.A. From that date, as a consequence of the merger between P ampa Energia and P etrobras Argentina, includes transactions with both parties.
[4] | See Note 17.a).

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