Global drinks giant Diageo PLC said Thursday that it has signed a sale and leaseback deal involving some of its land and facilities in Napa Valley, California, valued at approximately $260 million, part of the global drinks firm's ongoing review of its wine operations.The assets will be purchased and leased back to Diageo by Realty Income Corp. under a 20 year lease, with Diageo holding options to extend the lease for up to 80 years in total.