No I don't think that it is Hurley's he would have remembered have and extreamly expensive bottle with him I would assume... Does anyone think that Jack's Dad could have given it to Ana L as part of payment for her going with to help him? I don't know reaching here... Boone had access to money easily...
Those are the only ideas I have at this moment... Did we find proof on how expensive the whiskey is? Or where it is avabile? Or if it is real or like the Apollo candy?

__________________
Please don't give up, Des. Because all we really need to survive is one person who truly loves us. And you have her. I will wait for
you. Always. I love you, Pen

DESMOND: I love you, Penny. I've always loved you. I'm so sorry. I love you!
PENNY: I love you too.
DESMOND: I don't know where I am, but--
PENNY: I'll find you, Des--
DESMOND: --I promise--
PENNY: --no matter what--
DESMOND: --I'll come back to you--
PENNY: --I won't give up--
BOTH: I promise. I love you.