Okla. Stat. tit. 12, § 12-990.1: Jurisdiction of certain appeals - Time limit for

counter-appeals and cross-appeals.

When a petition in error is timely filed, the Supreme Court

shall have jurisdiction of the entire action that is the subject of

the appeal. No additional jurisdictional steps shall be necessary

to enable the Supreme Court to rule upon any errors made in the

trial of the action which are asserted by any party to the appeal

and involve any other party to the appeal.

The Supreme Court may prescribe by rule the time limits for

filing counter-appeals and cross-appeals.