Okla. Stat. tit. 84, § 84-906: Power to revoke

A. An electronic will may revoke all or part of a previous

will.

B. All or part of an electronic will is revoked by:

1. A subsequent will that revokes all or part of the electronic

will expressly or by inconsistency; or

2. A physical act, if it is established by a preponderance of

the evidence that the testator, with the intent of revoking all or

part of the will, performed the act or directed another individual

who performed the act in the testator’s physical presence.