Speaking at a public event organised yesterday (23 April) by the European Policy Centre, Orbán was asked to comment on his recent meeting with the Gazprom chief executive Alexey Miller in Budapest. Hungary is considering granting "national status" to South Stream, according to a press release.
"Nabucco is in trouble. I'm not an expert in the details, but what I have seen is that even the Hungarian company MOL is leaving the whole project," he said, speaking in English.
Orbán added that at the same time, the Russians were getting more active with their South Stream project. Both gas pipeline projects (see background) are planned to cross the Hungarian territory before reaching the Baumgarten gas hub near Vienna.
Nabucco is designed to tap other suppliers to reduce Europe's dependence on Russian natural gas.
But the Nabucco project has been under new strain since Azerbaijan, one of the expected suppliers, said its agreement would depend on Turkmenistan supplying gas as well. As the largest project among the competitors for Azeri gas, Nabucco's cost-efficiency has been raising doubts in recent months.
"The question for Hungary is very simple: whether we would like to have a South Stream which will involve in its route through Hungary, or we would like to see a South Stream running outside of the territory of Hungary," he said.
He added that "for various reasons", his government wanted South Stream to pass trough Hungarian territory.
Gazprom has been very secretive about the route of the pipeline. A Brussels promotional event for South Stream held last year was largely seen as a flop, because its representatives were unable to answer questions about the transit corridor.
The Hungarian leader sought to convince the audience that the country's energy security would not suffer even if Nabucco does not come to life.
Orbán argued that new pipeline routes were being planned to bring gas from sources other than Russia. Despite the lack of external financing, he underscored that the priority was to build a Slovakia-Hungary pipeline. He also mentioned building links to the Croatian and Italian gas network.
"My goal is that in three years Hungary could and should say we are not dependent any more on one single-country source," he said.
Orbán commended the Russians for behaving "rationally," and added that his words carried even more weight as they came from a representative of the European centre-right, which is more concerned about Moscow's supposed hidden agenda.
Mentioning the 1956 Budapest democratic revolution, which was crushed by Soviet tanks, he noted that despite the difficult historic legacy between the two countries, the present Hungarian government was able to build a "much better relationship" with Moscow than his country had had in the past 20 years.
Recently, Bulgaria and Russia have agreed that a final investment decision on the South Stream gas pipeline will be taken in November.