The oil projects are mainly in connection with South Pars and West Karoun oil fields and could fetch $40 billion worth of investment.
A National Iranian Oil Company (NIOC) official said Iran is to introduce 40 grand oil projects at a London Conference due in March 2015.
Moshtaq Ali Gohari who is the deputy chief of the company told reporters on Monday that the NIOC will unveil over 40 oil industry projects during the conference.
Most of the projects are related to South Pars and West Karoun oil fields, he said.
The official noted that they are mainly conducted in upstream oil industry as well as exploration and development activities.
He anticipated that disclosure of projects will fetch about $40 billion worth of investment for the projects.