Great Prices on Beer & Wine by Suzann S. at InsiderPages
Parkhill is about $2 cheaper per bottle on wine, and about $1 cheaper a 6 pack on beer. Probably not worth driving out of your way if you're just picking up one bottle, but if you're buying for a wedding, party, etc... you can save quite a bit.
Read more at tulsa.citysearch.com
One more thing I like... if you buy 12 items or more, they give you 10% off your entire purchase. So it pays to stock up!