Oak is a divisive issues in wine. One way of looking at it is that if a little is good, then more is better. Not many people would actually subscribe to that theory, though.
Napa vintner John Kongsgaard has been experimenting with extended barrel aging for his Chardonnays for years, with increasingly impressive results. Not only were his two 2010s the cream of the crop in this year's roundup of California's best Chardonnays, but one wine he's been tinkering with spent four years in oak.