You would be able to vote, since the only prohibitions are on CASTING more than one vote, but moving does seem to be more problematic.
There is no cutoff date for updating your address, but you can't cast a vote unless your voter ID card or other documented information matches the name and address on their registration database, and I don't see anything on the site that allows for at the polling location updates or registration.
Changing Your Registration
If you need to change your name, your address or your political affiliation, you must fill out another voter registration application form, or you can update your voter registration information online. You may change your registration at any time with one exception. You may not change your political affiliation during the period from April 1 through August 31, inclusive, in any even-numbered year. The last day on which you may change your political affiliation before the closed period is March 31; the first day on which you may change your political affiliation after the closed period is September 1.
Voter Identification Card
You do not become a registered voter until the county election board in the county where you reside has approved your application. When your application is approved, the county election board will mail a voter identification card to you. Your voter identification card lists your name, address, political affiliation and the polling place for your voting precinct. When you receive your voter identification card, look at it carefully and report any errors to the county election board immediately. Keep your voter identification card in a safe place and always take it with you when you go to vote.
If your voter registration application cannot be approved, you will receive a letter from the county election board. The letter will tell you why your application was not approved and explain the steps you need to take to become registered. You may be able to return the letter with some additional information, or you may need to fill out and send in another voter registration application form.
Oklahoma Elections: Voter Registration in Oklahoma
You should contact your County elections office to see if you can come in personally and get your address updated on their database, and then ask how you can vote, since the rolls at the polling station won't have you on them. It will probably be a provisional ballot, if you are able to do this, which is not certain.