India�s�Oil and Natural Gas�Corp.�is in talks with Iranian state company Pars Oil and Gas Co. to return to a $10 billion gas project that it abandoned because of American pressure, a top official in Tehran said Wednesday.

The Indian company, known as ONGC, approached the Iranians last week during an energy conference in Tehran, said�Ali-Akbar Shabanpour,�the managing director of Pars Oil and Gas Co., in an interview.

ONGC is interested in returning to Farzad B, a giant natural gas concession in the Persian Gulf overseen by Mr. Shabanpour�s company.

ONGC discovered gas in the field in 2008, but left the project after 2010 as the U.S. pressured countries to quit doing business with Iran because of its nuclear program.

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