The $22.5B Deal: How ConocoPhillips Won Marathon Oil in 33 Days / Latest / By mark ConocoPhillips didn’t show up until April 25, while two other unidentified public E&Ps were bidding for Marathon, according to a filing with the Securities & Exchange Commission. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Related