Every university and college will have their own scholarship opportunities, so you should look at the school website for each school you are interested in , and find out about their specific academic and merit-based scholarships. There are also private scholarships available, and below are some great links to get you started on your search. Make sure you check with your parents' employers, often there are scholarships available through businesses.
Oklahoma City Community Foundation - many local scholarships available here. Fill out the general application first, then apply for specific ones after. HIGHLY RECOMMEND THIS SITE FOR ALL.