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DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Disaggregation of Revenues by Business Segment (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Revenues [Abstract] |  |  |
Revenues | $ 48,561,494 | $ 52,399,423 | $ 30,694,588
Reportable Segments [Member] | Natural Gas Transportation [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 22,620,423 | 23,785,660 | 11,469,824
Reportable Segments [Member] | Natural Gas Transportation [Member] | Firm [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 18,521,215 | 18,834,776 | 8,971,393
Reportable Segments [Member] | Natural Gas Transportation [Member] | Access and Charge [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 835,721 | 870,398 | 666,979
Reportable Segments [Member] | Natural Gas Transportation [Member] | Interruptible and Others [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 3,263,487 | 4,080,486 | 1,831,452
Reportable Segments [Member] | Production and Commercialization of Liquids [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 23,138,182 | 25,578,373 | 17,189,194
Reportable Segments [Member] | Production and Commercialization of Liquids [Member] | Product [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 21,708,919 | 23,867,702 | 15,776,153
Reportable Segments [Member] | Production and Commercialization of Liquids [Member] | Services [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 1,226,814 | 1,084,994 | 878,235
Reportable Segments [Member] | Production and Commercialization of Liquids [Member] | Government Grants [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 202,449 | 625,677 | 534,806
Reportable Segments [Member] | Other Services [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 2,526,643 | 2,784,534 | 1,844,712
Reportable Segments [Member] | Other Services [Member] | Conditioning and Treatment [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 1,273,070 | 1,130,820 | 841,091
Reportable Segments [Member] | Other Services [Member] | Operation and Maintenance [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 651,665 | 738,568 | 637,752
Reportable Segments [Member] | Other Services [Member] | Steam Sales [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 231,565 | 210,387 | 148,582
Reportable Segments [Member] | Other Services [Member] | Construction [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 11,899 | 32,799 | 213,270
Reportable Segments [Member] | Other Services [Member] | UT Construction [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 187,686 | 666,402 | 0
Reportable Segments [Member] | Other Services [Member] | Transportation and conditioning of Natural Gas in Vaca Muerta [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 165,725 | 0 | 0
Reportable Segments [Member] | Other Services [Member] | Others [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | 5,033 | 5,558 | 4,017
Reportable Segments [Member] | Telecommunications [Member] |  |  |
Revenues [Abstract] |  |  |
Revenues | $ 276,246 | $ 250,856 | $ 190,858

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