Originally Posted by doctajay
The statement wording is slightly confusing to me ..... due to the wording about "codeshare equivalent"
Elite Qualifying Fare Classes (or codeshare equivalent) on Delta-coded, Delta-operated flights (except where noted)
The key is Operated. So let's say you are on a CO coded NW operated flight, you get whatever mileage you would have gotten if it was a NW coded flight. The rules of WP's are that you get whatever miles the rules are for that particular operating carrier. So coded means very little.