Okla. Stat. tit. 47, § 47-7-214: Authority of Department to decrease amount of security

The Department of Public Safety may reduce the amount of

security ordered in any case within one (1) year after the date of

the accident if in its judgment the amount ordered is excessive. In

case the security originally ordered has been deposited, the excess

deposit over the reduced amount ordered shall be returned forthwith

to the depositor or the personal representative of the depositor.