Last month when I was researching the new Jim Beam six-grain bourbon, the folks at Beam hinted that the next new product would be something in the Knob Creek line. Then word came (not from Beam) that a Knob Creek Single Barrel is presently on the shelves in Virginia. From another source (also not from Beam) I learned that Beam has built a single barrel bottling line at the distillery in Clermont, Kentucky.
Also from Kentucky comes a report that retailers there have been offered a Knob Creek Single Barrel but they have to buy the contents of an entire barrel to get it. (That's 200+ bottles.) Several brands offer such a 'buy a barrel" program to retailers. Buffalo Trace has been the leader in this.
With the Buffalo Trace program the retailer gets to pick the barrel, usually from a pre-screened selection of three or four. Beam is not giving retailers that option, at least according to the report from Kentucky. In Virginia, the bottles come with a neck hanger that says the barrel was specially selected for them by Fred Noe.
Beam is unwilling to officially confirm or deny any of this, but it seems increasingly likely that a national roll-out of some kind of Knob Creek Single Barrel is imminent.