Okla. Stat. tit. 63, § 63-2-428: Joinder of parties - Judgments

A. Two or more persons may join in one action under this act as

plaintiffs if their respective actions have at least one place of

illegal drug activity in common and if any portion of the period of

illegal drug use overlaps with the period of illegal drug use for

every other plaintiff.

B. Two or more persons may be joined in one action under the

Drug Dealer Liability Act as defendants if those persons are liable

to at least one plaintiff.

C. A plaintiff need not be interested in obtaining and a

defendant need not be interested in defending against all the relief

demanded. Judgment may be given for one or more plaintiffs

according to their respective liabilities.