VIENNA - The top oil officials of Iraq and Venezuela said on Wednesday that $75 to $80 a barrel was now a 'fair' price for oil, reflecting an emerging consensus on a possible equilibrium for volatile markets. Asked for his view while speaking at an OPEC seminar in Vienna, Iraqi oil minister Adel Abdel Mahdi said he believed $75 to $80 was fair. 'We share the same opinion of the minister of Iraq regarding this issue,' Venezuela's oil minister Asdrubal Chavez said. Iran's oil minister declined to comment.