Okla. Stat. tit. 43, § 43-601-615: Modification of order made by foreign country that

lacks or does not exercise jurisdiction

A. Except as otherwise provided in Section 601-711 of this

title, if a foreign country lacks or refuses to exercise

jurisdiction to modify its child support order pursuant to its laws,

a tribunal of this state may assume jurisdiction to modify the child

support order and bind all individuals subject to the personal

jurisdiction of the tribunal whether the consent to modification of

a child support order otherwise required of the individual pursuant

to Section 601-611 of this title has been given or whether the

individual seeking modification is a resident of this state or of

the foreign country.

B. An order issued by a tribunal of this state modifying a

foreign child support order pursuant to this section is the

controlling order.