As exploration and reserve replacement being major drivers for the company,[111] Eni boosts for production additions in its core oil field areas (North and Sub-Saharan Africa,[112][113][114] Venezuela,[115][116] Barents Sea,[117][118] Yamal Peninsula,[119][120] Kazakhstan,[121][122] Iraq[123] and the Far East).[124][125] Eni has about 130 exploration and production subsidiaries,[126] such as Eni Norge.[127]