You are welcome There is a Swedish company called XO Wines & Spirits AB, that potentially could claim rights to the name (not sure if they would have a good or bad case.) They are of cause also a potential end-user, but since they have not registered the domain earlier they are probably not interested.
I don't see a high reseller interest, but the domain does have some development potential. Since XO is somewhat generally used in relation to spirits, a portal with affiliate links, a list of cognac reviews etc. are options for development.
I disagree on the tm infringement. XO and VSOP etc are generic terms used by multiple producers of Cognac. Spirits doesn't really work for this though. XOCognac.com would be much better but again, it's too specific because no company is going to exclusively sell XOCognac (it's undeveloped and listed for sale).
They would sell a wide range. You might find a company interested in forwarding the domain based on search volume/traffic (xocognac that is) for brand expsosure but you'd be dealing with the French market which is a tough sell at the best of times.