Okla. Stat. tit. 84, § 84-105: Revocation by subsequent will

A prior will is not revoked by a subsequent will, unless the

latter contains an express revocation, or provisions wholly

inconsistent with the terms of the former will; but in other cases

the prior will remains effectual so far as consistent with the

provisions of the subsequent will. R.L. 1910, Sec. 8362.