Amid soaring oil prices the Commodity Futures Trading Commission (CFTC) is looking into manipulation of the oil market—withholding oil in an attempt to drive prices higher. The CFTC has found such evidence in the past and it’s likely it will find evidence again. But it is unlikely that a single player acting alone would be able to run the price up from $90 to $135.

What type of market does the news clip imply best describes the U.S. oil market?