Arvest Completes Purchase of National Bank of Arkansas by Lance Turner Posted 12/9/2013 07:36 am Updated 2 years ago Arvest Bank on Saturday said its acquisition of National Bank of Arkansas of North Little Rock is complete. The companies announced the deal in October. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 15 days. Purchase Now Already have archive access? Login to view this article.