It also is located on hilly terrain, and uneven lies are common from the fairway or rough.

The tenth hole (named after the Prairie Dunes Country Club) is a long, tight par four.

Oak Tree is the home course of several PGA Tour or PGA Tour Champions players: David Edwards, Mark Hayes, Gil Morgan, Doug Tewell, Bob Tway, Matthew Wolff, Scott Verplank, Willie Wood, Kevin Tway, and Rhein Gibson.

Female Professional Golfer: Sydney Cox[4] Bolded years are major championships on the PGA Tour.

Jeff Sluman won with a score of twelve under par 272, clinched with a final round 65.

In 2000, the PGA Club Professional Championship was held at Oak Tree; Tim Thelen won it in a playoff.

Jay Haas defeated Brad Bryant in a playoff with a final score of 279, five under par.

Oak Tree hosted the 2014 U.S. Senior Open, won by Colin Montgomerie.