You can't read, and you are wasting the time of myself and other readers here by constantly repeating the same idiocy you could get answered from info I posted.
How many times do you need it spelled out?
Is this clear enough that they are "driving up the price of oil"?
Emphasis added.
How much are they doing? The Koch company said it's one of the world's top five oil speculators; data shows it's among the top traders.
They don't release specifics; Bernie Sanders released leaked documents showing some of the biggest traders.
These parasites make money on the speculation market going up and down.
What part do you not understand that people taking many billions of dollars out of the oil market in a zero-sum game are raising the costs, which consumers pay?
You can't click a link and read, but in case you learn, related links:
http://thinkprogress.org/economy/2011/04/13/153206/koch-industries-price-gouging/
http://thinkprogress.org/report/koch-oil-speculation/