T. Boone Pickens -- the super charismatic billionaire known as the "Oracle of Oil" -- has died at age 91, a spokesperson confirms.
Pickens reportedly died peacefully Wednesday of natural causes at his home in Texas.
You may know T. Boone for being one of the successful oil tycoons in history. You may know him for the BILLIONS he donated to charity.
And, if you're a college football fan, you might know him because the stadium at Oklahoma State University is NAMED after him! In fact, over the years, T. Boone raved about OSU to TMZ Sports!