Okla. Stat. tit. 66, § 66-163: Time extended

Every railroad corporation organized under the laws of the

Territory of Oklahoma, or of the Indian Territory, prior to the

taking effect of the Constitution of this state and within three (3)

years before said date and that has heretofore or shall within one

(1) year from the taking effect of this act, in good faith, comply

with the provisions of the Constitution of this state, and shall, in

good faith, commence the construction of its works contemplated in

its articles of incorporation or organization is hereby declared to

be a domestic corporation under the Constitution and laws of this

state.