Okla. Stat. tit. 58, § 58-107: Two or more personal representatives

A. When all the executors named are not appointed by the court,

those appointed have the same authority to perform all the acts and

discharge the trust required by the will, as effectually for every

purpose as if all were appointed and should act together.

B. When there are two personal representatives:

1. if one of such personal representatives is laboring under

any legal disability from serving, the act of the other shall be

effectual; or

2. if one of such personal representatives has given his

copersonal representative authority, in writing, to act for both,

the act of the copersonal representative having such authority in

writing shall be effectual.

C. When there are more than two personal representatives, the

act of a majority of them is valid.