Okla. Stat. tit. 18, § 18-424: Amendment of articles

The articles of incorporation may be amended at any time, or

from time to time, by the affirmative vote of two-thirds of the

members present at any annual meeting of the stockholders, if notice

of the proposed amendment shall have been given in the call for such

meeting. Such amendments shall be put into effect by the directors,

who shall sign and acknowledge and file, as above provided, new or

revised articles containing such amendments and superseding the

original articles.