Dennis Smiley, President Arvest Bank Benton County tells us, "Yes we can confirm that our systems are down and we are working to rectify the situation and expect to have them up and running very soon."
As of 8:37pm Arvest Bank's website was back up, but you still could not log in to your account. Later Thursday night the company alerted customers via Twitter, their online system was back up and running. The company is currently working to restore all services as quickly as possible.
Arvest will post via social media once the issues are resolved.