Iran’s Oil Minister Gholamhossein Nozari hosted the meeting in Tehran on 21 October with Qatar’s Energy Minister Abdullah bin Hamad Al-Attiyah and Gazprom chairman Alexei Miller.

Nozari says the group has already decided to co-operate to develop gas field but did not give further details.

The Gazprom head said the group would be beneficial for exporting and consuming countries.

“We have agreed to create a technical committee and one of its missions will be to review projects that can be implemented in a trilateral way,” Miller told Iran’s official energy news agency, Shana. “We can say today that a major gas troika was formed.”

The three countries have the world’s largest natural gas reserves, with Russia holding 1,576 trillion cubic feet (tcf), Iran second with 981 tcf and Qatar third with 900 tcf.