Transportadora de Gas del Sur S.A. (NYSE: TGS) reported comprehensive income of Ps. 133,145 million for the second quarter of 2026, against Ps. 53,780 million a year earlier. The gain came from its liquids business rather than from the regulated pipelines that carry roughly 60% of the natural gas consumed in Argentina. The company describes its transportation network as more than 5,700 miles of pipelines with firm capacity of 92.7 MMm3 per day.
The quarter in the accounts
Per share, the result works out at Ps. 176.88, or Ps. 884.38 per American depositary share, compared with Ps. 71.44 and Ps. 357.22 respectively in the second quarter of 2025. The company had 752,761,058 shares outstanding at June 30, 2026, and each ADS represents five ordinary shares.
Operating profit reached Ps. 216,327 million, an increase of Ps. 52,661 million on the same quarter of 2025. Revenues were Ps. 535,522 million against Ps. 464,147 million, a rise of Ps. 71,375 million. Cost of sales together with administrative and selling expenses rose Ps. 42,266 million, driven mainly by Ps. 30,690 million of additional natural gas costs for liquids production, Ps. 8,483 million more in taxes, fees and contributions and Ps. 5,127 million more in depreciation, partly offset by an Ps. 11,194 million fall in impairment charges on financial assets.
Financial results improved by Ps. 60,191 million, moving from a loss of Ps. 79,313 million to a loss of Ps. 19,122 million. The company attributes that to Ps. 130,125 million of higher gains on financial assets and instruments, offset by a larger negative foreign exchange result of Ps. 46,691 million, Ps. 15,228 million more interest on liabilities and a Ps. 7,573 million larger loss on the net monetary position.
All figures are presented in millions of constant Argentine pesos as of June 30, 2026, restated under IAS 29 as required for a hyperinflationary economy by the Comision Nacional de Valores.
Where the money came from
The liquids production and commercialisation segment did the work. Its revenues reached Ps. 238,904 million against Ps. 160,761 million, and its operating profit rose to Ps. 77,934 million from Ps. 29,790 million. Volumes sold increased by 118,879 tons, or 56%, while production rose by 78,172 tons to 302,425 tons. The segment accounted for about 45% of total revenues in the quarter, against 35% a year earlier.
Much of that growth is a comparison effect. A weather event on March 7, 2025 interrupted production at the Cerri Complex until the middle of April 2025, which depressed the base quarter. The company also cites better quality in the natural gas processed at Cerri as a source of sustained higher liquids output.
Natural gas transportation went the other way. Segment revenues fell Ps. 7,138 million, as tariff increases of Ps. 50,200 million failed to cover a Ps. 48,617 million negative effect from constant currency restatement and Ps. 9,644 million of lower transportation service revenues. Segment operating profit still rose Ps. 11,869 million to Ps. 95,485 million, helped by the drop in impairment charges. Transportation fell to about 36% of consolidated revenues from 43%, with firm contracted capacity accounting for around 80% of segment revenues against 81%.
Midstream and telecommunications, which covers the Vaca Muerta services, contributed about 19% of revenues against 22%, and its operating profit fell Ps. 7,352 million as costs rose Ps. 6,246 million.
The investment decision behind the numbers
The quarter carried three items with longer reach than the results themselves.
The company reached a final investment decision on its Integrated NGLs Project, an estimated US$ 3.0 billion programme expected to generate annual exports of about US$ 1.2 billion. The build covers a 100 km segregation pipeline, an expansion at the Tratayen Plant, a multi product pipeline to Bahia Blanca, a fractionation plant, storage and a marine terminal for dispatch, over roughly four years, with operations expected to start in March 2030. The company’s own project announcement puts the build across four provinces with a 45 month execution period, and estimates the work will create 4,000 direct jobs and 15,000 indirect jobs.
On May 12, 2026 the Ministry of Economy approved, through Resolution 676/2026, the adherence to the Incentive Regime for Large Investments of the expansion of section one of the Perito Francisco Pascasio Moreno gas pipeline, submitted by a dedicated branch of the company, with the adherence date set at April 30, 2026.
The credit also moved. S&P Global Ratings raised the long term local and foreign currency debt ratings to B from B- on June 11, 2026, and on July 23, 2026 Moody’s upgraded the notes rating to B1 from B2, in a separate material fact the company filed that day which ties the action to the upgrade of Argentina’s sovereign rating.
Analysis: a liquids quarter inside an inflation accounting frame
The headline is a comprehensive income figure that more than doubled, and almost none of it comes from the business the company is named after.
Pipeline transportation is where the regulated revenue sits, and in constant pesos it shrank. Tariff increases of Ps. 50,200 million were more than consumed by a Ps. 48,617 million restatement charge and lower service revenues. That is the arithmetic of a tariff regime adjusting behind inflation rather than a demand problem, and the six month figures show the same shape, with segment revenues of Ps. 402,444 million against Ps. 417,179 million and the segment’s share of consolidated revenues falling from 45% to 38%.
The liquids gain, meanwhile, is only partly a run rate. The company itself identifies the March 7, 2025 Cerri outage as the reason the comparison base is low, and volumes dispatched over six months rose by 230,903 tons, more than 50%, against a period that included the interruption. A reader working out what the business earns in a clean quarter would set the base effect aside and look at the incremental gas cost, which rose Ps. 30,689 million in the segment, and at international reference prices, which the six month discussion describes as lower even as quarterly revenues benefited from higher prices.
The balance sheet moved more than the income statement suggests. Net debt rose to Ps. 497,604 million at June 30, 2026 from Ps. 120,098 million at December 31, 2025, while new financial debt taken in the quarter was only Ps. 20,769 million, or US$ 14.4 million, with no repayments. Cash used in investing reached Ps. 500,732 million against Ps. 115,371 million provided a year earlier, reflecting both financial asset placements and property, plant and equipment. Financing activities provided Ps. 20,582 million where the prior year quarter used Ps. 270,925 million, a swing explained almost entirely by the absence of the Ps. 270,657 million of dividends paid in the second quarter of 2025.
That combination is the thing to watch. A company that has just committed to a US$ 3.0 billion project has stopped paying dividends in the comparable quarter, borrowed very little, and is building financial assets while net debt climbs on a constant currency basis. The pipeline tender data point sits alongside it: requests above 32 MMm3/d were received in the February 2026 public tender for incremental Perito Moreno capacity, almost three times what was offered, and 5.4 MMm3/d was awarded on April 15, 2026. Demand for capacity is evidently there. Whether the regulated tariff, redefined by Secretariat of Energy Resolution No. 66/2026 in March 2026 and closed out by ENARGAS Resolution No. 409/2026 on April 14, 2026, allows that capacity to be paid for in real terms is the question the transportation segment keeps posing and these accounts do not answer.
