If you're dead set on Tulsa, rather than going to another archaic job fair or shady job site with MLM schemes left, right and sideways,
click on this linkIt's the Tulsa Chamber of Commerce list of the largest employers in Tulsa, OK with their websites.
Homework
1. Make a spreadsheet with three columns: Company Name, Job Title, URL
2. Visit the corporate website of every company, even Verizon and Pepsi, and do a job search on their corporate job/career site for the state of Oklahoma. Save the URL for every posting you think you are capable of doing, both CAD and non-CAD. Then in the end go down the spreadsheet and apply for every job in order of how much you want the job.
Get the spreadsheet done in the next day. Then spend the rest of the weekend applying for as many jobs a day as you can on that list. Your goal should be to apply to EVERY job you think you capable of and hope you catch a fish.
Oh and NO CALL CENTERS.