Okla. Stat. tit. 74E § 2.43
Contributions to a candidate committee may be used to make expenditures for ordinary and necessary campaign expenses, for contributions to another candidate committee, for operating expenses of the committee or for other purposes not otherwise prohibited by law or these Rules. "Ordinary and necessary campaign expenses" as used in this section are those that would not exist but for the candidate's campaign, including but not limited to staff salaries, campaign consulting fees, rent (other than for the candidate's residence or part of a residence), travel, advertising, telephones, office supplies and equipment, fundraising, individual memberships in political organizations, individual memberships in civic or charitable organizations, legal fees for the campaign, payment for campaign accounting or bookkeeping services or campaign finance reporting services and repayment of the principal and interest on a loan as permitted by these Rules. Expenditures made to a family member of the candidate for services provided to the campaign shall be no more than customary compensation for those services.
Expenditures made to reimburse a candidate for personal expenditures made on behalf of the candidate committee must be made within ninety (90) days of the original expenditure and must be reported in detail as required by Rule 2.106.
Okla. Stat. tit. 74E, § 2.43