Okla. Stat. tit. 51, § 51-68: Trial after adjournment - Per diem of Senators - How paid

In case the court of impeachment shall sit and hold its sessions

after the Legislature has adjourned, the Senators composing such

court and the managers representing the House of Representatives

shall be paid the same per diem and mileage as is prescribed for

members of the Legislature when convened in regular session. The

clerk, marshal, stenographers, and other employees shall receive the

same compensation as is prescribed for like officers and employees

in the Senate. The members, officers and employees of the court

shall be paid upon certificates signed by the presiding Justice of

the court, attested by its clerk.