In some states, a domestic partnership is a legally recognized relationship between members of a same-sex couple, with rights similar to those of a marriage relationship.
As of my knowledge cutoff in early 2023, Oklahoma does not legally recognize domestic partnerships. Oklahoma law defines marriage as a union between one man and one woman, and the state does not offer a legal status similar to marriage for same-sex couples or any couples outside of marriage. This means that in Oklahoma, couples who are in a domestic partnership do not have the same state-granted legal rights, protections, and benefits that are afforded to married couples. It's important for individuals in domestic partnerships in Oklahoma to seek alternative legal arrangements, such as powers of attorney or healthcare directives, to secure some of the rights and responsibilities typically associated with marriage.