Okla. Stat. tit. 11, § 11-49-101: Right to pension - Amount

A. All retired volunteer firefighters who qualify for

retirement shall be entitled to a monthly pension. The monthly

pension of a volunteer firefighter shall be in the amount retired

volunteer firefighters are receiving at the time the volunteer

firefighter begins to receive a pension for each year of credited

service not to exceed thirty (30) years. In determining the number

of years of credited service, a fractional year of six (6) months or

more shall be counted as one (1) full year and a fractional year of

less than six (6) months shall not be counted in such determination.

Retired volunteer firefighters of a municipality shall receive a

pension of not less than that which retired volunteer firefighters

of such municipality were receiving on June 30, 1985.

B. A volunteer firefighter who terminates service after

completing ten (10) years of credited service, but less than twenty

(20) years of credited service, shall be entitled to receive a

vested benefit commencing on the date the firefighter reaches fifty

(50) years of age or the date the firefighter would have had twenty

(20) years of credited service had the firefighter's service

continued uninterrupted, whichever is later. The monthly amount of

such retirement benefit shall be the amount being paid to volunteer

firefighters at the time the member vests multiplied by the number

of years of credited service. Credited service must be established

at the time of the volunteer firefighter's termination. If a

volunteer firefighter who terminated employment and elected, or was

eligible to elect, a vested benefit dies prior to being eligible to

receive benefits, the volunteer firefighter's beneficiary, as

defined in paragraph 16 of Section 49-100.1 of this title, shall be

entitled to the volunteer firefighter's normal monthly retirement

benefit on the date the deceased volunteer firefighter would have

been eligible to receive the benefit.