Oklahoma Public Legal Research System: contains unpublished court decisions.
Google Scholar: Many state court decisions can also be found using Google Scholar. For more options, select the advanced scholar search which will allow you to narrow down your search by jurisdiction and date.
Oklahoma cases are available on Lexis and Westlaw within the Oklahoma databases. Current students should access these databases through the Law Library Databases page.
Oklahoma Bar Association members can also use their membership-included subscription to Fastcase to find case law.