You should be able to access the Oklahoma Statutes, session laws, court rules and constitution, as well as a number of other types of codes and rules. This is a good option if you don't have access to other legal databases such as Lexis or Westlaw.
If you were to use this resource a good example of how to use it is below.
Example: Researcher wants to find Oklahoma statutes regarding animal bites and liability. So that user would select search link to the right of Title 4: Animals. See below.
Next, we come to a search page for that Title. The researcher makes a simple search with the term "bite."
The results should like the screenshot below (if needed, you can also do an advanced search):
