keywords: irs oklahoma oklahomans refund federal
text: More Than 1,000 Federal Income Tax Refund Checks Returned &lt;b&gt;...&lt;/b&gt; Oklahoma City - The Internal Revenue Service is looking for more than 950 Oklahomans whose federal income tax refund checks totaling more than \$741,000 were returned to the IRS as undeliverable by the Postal Service.