Okla. Stat. tit. 74 § 872
In those instances where in an industrial development agency not holding title to real estate comprising the industrial development project, but desiring the Oklahoma Industrial Finance Authority to participate in the financing of such project, joins a responsible industrial buyer in making application for a loan from said Authority for such purpose, the said industrial development agency itself contributing funds to the financing of such project, whether secured or not, the said Oklahoma Industrial Finance Authority is hereby authorized and empowered, subject to all other provisions of Sections 851 through 868 of this title, and in supplementation thereof, to participate in the financing of such industrial development project not to exceed sixty-six and two-thirds percent (66 2/3%) of the cost thereof, taking as security for its loan a first mortgage lien on such approved industrial development project or thirty-three and one-third percent (33 1/3%) of the cost thereof, taking as security a second mortgage lien on such approved industrial development project; provided, however, that in such case the mortgage lien securing funds loaned by the local industrial development agency shall be inferior to the lien of said Authority, and provided, further, that the local industrial development agency shall be jointly and severally liable upon the note or notes given the said Authority as one of the principal makers thereof.
Okla. Stat. tit. 74, § 872