Speculators and traders have tried to corner the commodities markets since futures trading began thousands of years ago. In my blogs I am posting from time to time a selection of notable or high-profile trading plays.

Propane pain
BP was in 2004 alleged to have bought nearly all the propane in the Mont Belvieu storage fields in advance, then held onto it until the end of the month, when other companies who needed the gas on a northern pipeline would pay up for it.
In 2007, BP agreed to pay $303m in civil and criminal penalties for attempting to corner the US propane market, the biggest CFTC fine in history. In return, the government agreed to end criminal probes related to propane, gasoline, crude and other commodity trade. BP also agreed to pay $52m to settle a class action lawsuit brought by customers who said they paid inflated prices in April 2003 and the first half of 2004.