Okla. Stat. tit. 12, § 12-952

(a) The Supreme Court may reverse, vacate or modify judgments of

the district court for errors appearing on the record, and in the

reversal of such judgment may reverse, vacate or modify any

intermediate order involving the merits of the action, or any

portion thereof.

(b) The Supreme Court may reverse, vacate or modify any of the

following orders of the district court, or a judge thereof:

1. A final order;

2. An order that discharges, vacates or modifies or refuses to

vacate or modify a provisional remedy which affects the substantial

rights of a party; or grants, refuses, vacates, modifies or refuses

to vacate or modify an injunction; grants or refuses a new trial; or

vacates or refuses to vacate a final judgment;

3. Any other order, which affects a substantial part of the

merits of the controversy when the trial judge certifies that an

immediate appeal may materially advance the ultimate termination of

the litigation; provided, however, that the Supreme Court, in its

discretion, may refuse to hear the appeal. If the Supreme Court

assumes jurisdiction of the appeal, it shall indicate in its order

whether the action in the trial court shall be stayed or shall

continue.

The failure of a party to appeal from an order that is

appealable under either subdivision 2 or 3 of subsection (b) of this

section shall not preclude him from asserting error in the order

after the judgment or final order is rendered.

R.L. 1910, § 5236. Amended by Laws 1955, p. 135, § 1; Laws 1968, c.

290, § 1, eff. Jan. 13, 1969.