Earlier in the day, Gazprom CEO Alexei Miller had a meeting with Iran's Petroleum Minister Gholam Hossein Nozari, to discuss in particular cooperation between Gazprom and Iranian oil and gas companies.
"Prospecting, development and operation of Iranian oil and gas deposits was cited among the main lines of cooperation. The parties reiterated their interest in strengthening mutually beneficial long-term partnerships in the energy sphere," the Russian company said in a statement.
Gazprom has been involved in a project to develop and operate South Pars (reportedly the world's largest gas field with reserves of 14 trillion cubic meters) since 1997.
On July 13, 2008, Gazprom and the National Iranian Oil Company (NIOC) signed a memorandum of mutual understanding.