Under consideration is the oil under the so-called Abadan Plain, which extends from the general area of the Abadan refinery to the northern tip of the Persian Gulf.

The amount of crude involved could be very large, probably dwarfing the 6 billion barrels of proven reserves at the recently-discovered Azadegan field, according to experts.

Oil companies hope the National Iranian Oil Company (NIOC) will issue an exploration tender within a year.

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