Oklahoma constitution
Article XV: oath of office
Section 2

The foregoing oath shall be administered by some person
authorized to administer oaths, and in the case of State officers
and judges of the Supreme Court, shall be filed in the office of
the Secretary of State, and in case of other judicial and county
officers, in the office of the clerk of the county in which the
same is taken; any person refusing to take said oath, or
affirmation, shall forfeit his office, and any person who shall
have been convicted of having sworn or affirmed falsely, or
having violated said oath, or affirmation, shall be guilty of
perjury, and shall be disqualified from holding any office of
trust or profit within the State. The oath to members of the
Senate and House of Representatives shall be administered in the
hall of the house to which the members shall have been elected,
by one of the judges of the Supreme Court, or in case no such
judge is present, then by any person authorized to administer
oaths.