Okla. Stat. tit. 68 § 311
For the purpose of allowing compensation for the costs necessarily incurred in affixing the proper tax stamp to each package of cigarettes and tobacco before making a sale of such cigarettes and tobacco, each person purchasing cigarette or tobacco tax stamps from the Oklahoma Tax Commission as required by law may purchase stamps from the Tax Commission at a reduction of one and one-half cents ($0.015) per stamp, provided that such discount or reduction shall not be applicable on purchases of less than One Hundred Dollars ($100.00) at any one time; and provided, further, that no discount shall be allowed to out-of-state purchasers which reside in the states that do not give discounts on cigarette stamps purchased from State of Oklahoma cigarette dealers. The discount herein provided shall be the only discount allowed to purchasers from the Tax Commission; provided, that if a purchaser refuses to comply with the laws of the State of Oklahoma, the Tax Commission shall require the full face value for stamps purchased until such time as the person has complied with the provisions of the law. The Tax Commission may authorize the use of a metering device for the impress of the tax stamp.
Okla. Stat. tit. 68, § 311