OmniAmerican Bank announced it has promoted T.L. Arnold to senior executive vice president and chief credit officer. In this new role, Arnold will oversee all of the bank’s credit administration activities and will be responsible for planning, directing and evaluating underwriting programs offered through the consumer, mortgage and commercial banking groups.

Arnold joined OmniAmerican Bank in 2008. Previously, he served as vice president and senior credit officer with Marquette Financial Companies and was executive vice president for portfolio administration with its subsidiary, Marquette Commercial Finance. Prior to his tenure with Marquette, Arnold worked for KBK Financial and Texas Commerce Bank.