Under the deal reached with Italy's Eni, the other co-shareholder in a joint venture to build the pipeline, South Stream's capacity was increased from the initially planned 31 billion cubic metres of gas a year to 63 billion cubic metres.
Prema sporazumu sa italijanskom firmom Eni, koja je drugi partner u zajedničkom ulaganju da se sagradi gasovod, kapacitet Južnog toka povećan je sa prvobitno planiranih 31 milijardi kubnih metara gasa godišnje na 63 milijarde kubnih metara.