Michel Reybier, owner of Chateau Cos d'Estournel is in discussions to acquire the Chateau Montelena Winery in Napa Valley.

Chateau Montelena's founder, Jim Barrett and Reybier have been in talks to merge the two companies, which Reybier said "will continue to improve over time".

Financial details have not been disclosed.

Chateau Montelena was established in 1882. After going through a number of owners, the estate had been abandoned when the Barrett family acquired it in 1972.