It is interesting that Alabama has such a softball following. In the only year that I can find attendance, 2013, they had about 2900 fans per game. Next best was Arizona with 2200. OU was ninth with about 1100. They have a lot more fans at games than most schools. I wonder how much of it is weather.
Bama also gets about 12-13 K attendance in women's gymnastics.
They have a really nice softball facility and a family atmosphere is why they draw so well.
http://www.rolltide.com/facilities/rhoads-stadium.html
http://www.rolltide.com/sports/w-gym/recaps/012315aaa.html
I think OU would draw big if the Softball stadium was expanded.