The trader placed orders for personal profit ahead of trades intended for Delta, according to the CME Group.
Production outages and a drop in U.S. oil production have been more than offset by the flow of oil from Iran.
Global oil output surges in January, and the IEA says 'short-term risk to the downside has increased.'
Oil company cutbacks will cause a drop in output in May, but it may take until the second half for oil prices to be affected.
