However, many Russian-Iranian agreements allow Russian energy giant Gazprom to join the European project, which is aimed at lowering Europe's dependence on Russian energy supplies.
Conflicts between Iran and Russia are unlikely, as evidenced by a recent economic rapprochement between the two countries.

Gazprom is speedily drafting an agreement on the establishment of one or several joint ventures with Iran's state companies. It is to be signed with Iran's Oil Ministry in Teheran early next week.

According to the Iranian media, Gazprom will participate in the development of several phases of the South and North Pars gas deposits and the Kish gas deposit, with reserves of more than 1 trillion cubic meters (35.3 trillion cubic feet).

Gazprom also plans to build a gas storage facility in Iran and an oil refinery with a capacity of 7 million tons (51.45 million bbl) on Iran's border with Armenia.

The implementation of these agreements will allow Gazprom to join the Nabucco project.
In January, the Russian gas monopoly signed an agreement with Austria's OMV to buy a 50% stake in the Central European Gas Hub (CEGH) in Baumgarten, Austria, a key element of the Nabucco project.
The CEGH was established as a logistics and commercial trading platform by OMV and has a capacity of 1.3 billion cubic meters (45.89 billion cu f) per month.

The agreement allows Gazprom to influence gas distribution from the Nabucco pipeline.
In other words, Iran joining the project has not weakened, but, quite the opposite, will strengthen the global powers' struggle for export transportation routes.

Gazeta.ru - Via RIA Novosti