Okla. Stat. tit. 52, § 52-570.3: Application of act

The Production Revenue Standards Act shall apply to all owners

and shall apply to all producing wells, regardless of the date

pooled, drilled or of the date of the underlying leases; provided,

however, that Sections 4, 5, 6, 7 and 8 of this act shall not apply

to wells in common sources of supply under unitized management

pursuant to Section 287.1 of Title 52 of the Oklahoma Statutes or

where royalty remittance is otherwise provided by written agreement

among all owners in a well.