Glendullan was founded in 1897 in Dufftown by William Williams and Sons, the seventh and last distillery to be built in the town during the great Speyside boom of the 1890s. A second, larger Glendullan was constructed alongside the original in 1972, and the two operated in parallel until the older site closed in 1985. The current distillery is the modern plant.
Glendullan has long served as a major component of the Old Parr blended Scotch, particularly popular in Latin America and Japan, and has historically released little under its own name. Diageo's Singleton relaunch in 2006 gave Glendullan its first sustained single-malt presence, and the distillery was assigned the North American market.
The 12 Year Old is the lightest in style of the three Singletons — fresher and more orchard-fruited than Glen Ord or Dufftown — and matures in a mix of European and American oak. It is, again, an approachable rather than ambitious whisky, but the brighter fruit profile gives it a slightly distinctive character among the three.