Okla. Stat. tit. 58, § 84

If before or during the pendency of an application to prove a lost or destroyed will, letters of administration are granted on the estate of the testator, or letters testamentary of any previous will of the testator are granted, the court may restrain the administrators or executors so appointed from any acts or proceedings which would be injurious to the legatees or devisees claiming under the lost or destroyed will.