The seat, which surpasses the $3.1 million record sale set on October 27, is also the highest currently traded on any exchange — futures or equity — in the world.
Ownership of a seat on the NYMEX Division also represents a share of common stock in NYMEX Holdings, Inc.
Exchange President James E. Newsome said, "It is gratifying to see the value of our seats continue to grow. This recent seat sale is a reflection of the confidence the energy and financial communities have in the Exchange's risk management tools."