Simplify the following text for a Grade 10 native English-speaking person.
Original: In the inaugural 1992 â `` 93 season the league had six teams , including the Oklahoma City Blazers , the Tulsa Oilers , the Wichita Thunder , the Memphis RiverKings , the Dallas Freeze and the Fort Worth Fire .
Simplified: It started with six teams , including the Oklahoma City Blazers , the Tulsa Oilers , the Wichita Thunder , the Memphis RiverKings , the Dallas Freeze and the Fort Worth Fire .