The contracts, worth up to 17 billion euros (USD 18.4 billion), were signed in a ceremony attended by Iranian President Hassan Rouhani and his Italian counterpart Sergio Mattarella in Rome on Monday night.

Prior to the ceremony, Reuters reported that a pipeline contract worth between 3.6-4.6 billion euros (USD 4-5 billion) for Italian oil services group Saipem was among the deals.