Line 229 - energy markets Volatile in comparison to what index? Dow Jones has VIX to measure volatility, there is no such measure for Energy Markets.

Replaced sentence with Both the supply and the use of energy products, and therefore the market value, are time dependent, so precise communication of time of delivery is a significant component of product definition. Second occurrence of "volatile:" in document, beginning of section 2, replaced with: EMIX describes the Terms (EMIX Terms) of tenders and transactions for products whose market value varies with time of delivery