My understanding is that the CY flights will earn nothing in CO/NW/DL. I intend to credit the AZ operated flights to CO, and the rest to AZ.
I also think this is not officially permitted by CO...they say you must credit an entire trip to a single program....but think I will get away with this so long as all eligible CO flights (AZ op) have my CO number on them, and all CY flights have my AZ #.