Blue Bell Ice Cream to begin phase two on November 2, areas include north central Texas and north central and southern Oklahoma. Brenham, Texas, October 1, 2015 â Blue Bell Ice Cream will enter phase two of its five phase market re-entry plan on Monday, Nov. 2. Phase two includes north central Texas (Dallas, Fort Worth and Waco areas) and north central and southern Oklahoma (Tulsa and Oklahoma City areas).