Okla. Stat. tit. 18, § 381.24e

Upon written notice to the State Banking Commissioner, any association may establish one or more operations centers on property owned or leased by the association. For purposes of this section, "operations center" means an association facility separated from the main office of the association at which only the following association operations are conducted: computer processing, information systems, electronic communications, loan payment processing, bookkeeping, item processing, currency and coin processing and storage, data processing, and all support functions related thereto.