Energy Minister Edson Lobao said : "I received the ambassador of Iran, and he invited Brazil to become part of OPEC. It wasn't a suggestion but a formal invitation," he told a media conference.
But Lobao said he told ambassador Moshen Shaterzadeh in the meeting two weeks ago that Brazil "does not envisage that possibility" right now.
Brazil in November 2007 announced it had discovered a new oil field 250 kilometers (155 miles) off its coast that could contain up to eight billion barrels of oil.
Early this year, it said other nearby fields could contain another 40 billion barrels of light crude.
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Published by Mike Hitchen, Mike Hitchen Consulting