Source of Picture: www.autospies.com
Not an easy answer and not one much suited to a few paragraphs of blogging.
But here's one thought as the competitive environment becomes a great deal more difficult due to new Middle East capacity and the potential for China to move towards self-sufficiency in polyethylene and polypropylene: Have a chat with one of those poor old European refiners facing big naphtha surpluses.
Perhaps the refiners will be willing to do deals on long-term offtake deals at very preferential rates in order to keep operating. While gasoline might be falling in value in Europe for both local consumption and exports, diesel certainly isn't.