Okla. Stat. tit. 14A, § 14A-3-207: Conversion to revolving loan account

The parties may agree to add to a revolving loan account the

unpaid balance of a consumer loan, not made pursuant to a revolving

loan account, or a refinancing, or consolidation thereof, or the

unpaid balance of a consumer credit sale, refinancing, or

consolidation. For the purpose of this section

(1) the unpaid balance of a consumer loan, refinancing, or

consolidation is an amount equal to the principal determined

according to the provisions on refinancing (Section 3-205); and

(2) the unpaid balance of a consumer credit sale, refinancing,

or consolidation is an amount equal to the amount financed

determined according to the provisions on refinancing (Section 2-

205).