Herbert Smith and Linklaters have advised on a $2bn (£1.3bn) oil exploration financing agreement between Russian oil giant Rosneft and Italian energy company Eni.

Herbert Smith led for Eni with a team including Moscow corporate partner Danila Logofet and finance partner Ed Baring, while Linklaters acted for Rosneft with Moscow corporate partner Grigory Gadzhiev and Moscow managing partner Matthew Keats in the lead.