"The oil and gas will belong to the National Iranian Oil Co (NIOC)… They have the marketing rights and we have requested them to allocate the gas to us for converting it into LNG," the source said, adding that Iran had not responded to the plan submitted this month.
The Indian companies would liquefy the gas and ship it to India if a contract is signed and the consortium gets development rights.
Major European firms Total and Royal Dutch Shell have delayed or scrapped plans for multi-billion-dollar natural gas export projects in Iran, which is under U.N. and U.S. sanctions over its disputed nuclear work.
Iran, the world's fourth-largest crude producer, sits on the world's second-largest gas reserves after Russia but U.S. sanctions hindering access to technology have slowed development of gas exports.
LNG is gas cooled to liquid for transportation in special tankers. Iran has not yet exported any LNG but says it will be able to produce 77 million tonnes a year by 2014.
The Farzad gas field forms part of the Farsi block in the Gulf. In November 2008, a senior source at an Indian company holding a stake in the block said Iran had approved the commercial viability of natural gas production at the Farsi block operated by Indian firms.
ONGC and Indian Oil each hold a 40 percent interest in the block, while Oil India has the rest of the block, estimated to hold recoverable gas reserves of 12.8 trillion cubic feet.
Iran is drawing interest from Indian and Chinese firms keen to tap the world's second-largest reserves of oil and gas and are less susceptible than many other companies to Western pressure over Tehran's nuclear programme. (Reporting by Daniel Fineren, editing by Anthony Barker)
