Interview Help - Looking for any advice from someone in a similar role?

Hey all, have an interview coming up, with Gibson Energy. I am very excited and feel this is a great position to break into the oil/gas/energy industry. I am looking for any advice from someone with a similar role.
http://www.jobpath.com/Jobs/Gibson-Energy/Marketi… The title of the position has me slightly confused

Does this position pretty much act as an "observer" for the operations and scheduling and what not? Try to cut back costs where-ever available and ensure proper amounts of oil being moved?

I don't see where the "marketing" aspect comes in, but then again when I hear marketing my head wants to think "ads, billboards, commercials etc..."

Any words of wisdom would be greatly appreciated. Just looking for a better more thorough understanding for my interview so I can do my research to the best of my ability! Thanks all!