The airline affiliates allowed for OWE fares have changed significantly.
For AA: AmericanConnection service is operated by one of the following independent carriers: Trans States Airlines, Inc., Chautauqua Airlines, Inc., and Corporate Airlines, Inc. American Eagle service includes flights operated by Executive Air.
For BA: BA Connect has rebranded some of the subs (not sure which).
For QF: Jetstar (JQ) is allowed if a QF codeshare (but not as JQ code).