Okla. Stat. tit. 74E § 5.16
A lobbyist principal that employs or retains a legislative liaison or legislative lobbyist may provide food and beverage for any event held within the Capitol building to which all members of a committee or subcommittee of either House of the Legislature identified in the Rules or Journal of the respective House are invited and which is attended by a majority of members of the committee or subcommittee no more than once per calendar year for any such committee or subcommittee, provided the event is reported as provided by these Rules. More than one lobbyist principal may provide food and beverage for such an event, but no lobbyist principal shall participate in more than one such event per calendar year for any committee or subcommittee. The reporting provision of this section shall not include legislators who are not members of the committee or subcommittee, nor shall it include legislative staff members who do not officially or regularly provide staff services for the committee or subcommittee.
Okla. Stat. tit. 74E, § 5.16