Okla. Stat. tit. 68, § 500.30

A. The final report required by Section 40 of this act shall be accompanied by payment of the liability of the final month except as otherwise provided in this section. B. Any motor fuel vendor who possessed a license to sell motor fuel at wholesale or at retail prior to the effective date of this act who is ineligible to elect eligible purchaser status, or who otherwise does not apply for or does not receive eligible purchaser status under Section 23 of this act, may in the alternative elect to make payment of the tax calculated pursuant to the final report provided in Section 40 of this act if the tax is paid in two equal installments beginning twelve (12) months after the effective date of this act and subject to regulations promulgated by the Commission. C. If a person elects under subsection B of this section to defer payment, the person shall not be eligible to claim eligible purchaser status under Section 23 of this act for a period of thirty-six (36) months following the election under subsection B of this section.