Andy Contois scored for Bossier-Shreveport with 12:33 to play in overtime, forcing a decisive Game 5 as the Mud Bugs defeat the Tulsa Oilers 3-2.
The Oilers' Michael Beausoleil tied the game at two with 6:20 to play in the third period, forcing overtime.
Game 5 is scheduled to get underway at 7:05 Saturday night from Shreveport.
In the other Berry Conference Semi-Final, top seed Allen defeated Odessa 3-1. The Americans will be awaiting the winner of the Mud Bugs and Oilers in the Berry Conference Finals next week.