Okla. Stat. tit. 47, § 47-11-403

A. Preferential right-of-way at an intersection may be

indicated by stop signs or yield signs as authorized in Section 15-

108 of this title.

B. Except when directed to proceed by a police officer or

traffic control signal, every driver of a vehicle approaching a stop

intersection indicated by a stop sign shall stop as required by

subsection (d) of Section 11-703 of this title and after having

Oklahoma Statutes - Title 47. Motor Vehicles Page 484

stopped shall yield the right-of-way to any vehicle which has

entered the intersection from another highway or which is

approaching so closely on said highway as to constitute an immediate

hazard, but said driver having so yielded may proceed and the

drivers of all other vehicles approaching the intersection shall

yield the right-of-way to the vehicle so proceeding.

C. The driver of a vehicle approaching a yield sign shall in

obedience to such sign slow down to a speed reasonable for the

existing conditions, or shall stop if necessary as provided in

subsection (e) of Section 11-703 of this title, and shall yield the

right-of-way to any pedestrian legally crossing the roadway on which

the driver is driving, and to any vehicle in the intersection or

approaching on another highway so closely as to constitute an

immediate hazard. Said driver having so yielded may proceed and the

drivers of all other vehicles approaching the intersection shall

yield to the vehicle so proceeding, provided, however, that if such

driver is involved in a collision with a pedestrian in a crosswalk

or vehicle in the intersection after driving past a yield sign

without stopping, such collision shall be deemed prima facie

evidence of the driver’s failure to yield right-of-way.

D. Where two or more vehicles face stop, slow, warning or

caution signs or signals on two or more intersecting cross streets,

and are approaching so as to enter the intersection at the same

time, where each vehicle is required to stop, the vehicle coming

from the right shall have the right-of-way. Where each vehicle is

required to slow, the vehicle coming from the right shall have the

right-of-way. Where each vehicle is required to take caution, the

vehicle coming from the right shall have the right-of-way. Where

one vehicle is required to stop and the other to slow or take

caution, the one slowing or taking caution shall have the right-of-

way. Where one vehicle is required to slow and the other to take

caution, the one required to take caution shall have the right-of-

way. In any event, a vehicle which has already entered the

intersection shall have the right-of-way over one which has not so

entered the intersection.