Prevent Unfair Manipulation of Prices Act of 2008

[AI summary unavailable — showing source text] Prevent Unfair Manipulation of Prices Act of 2008 - Amends the Commodity Exchange Act (CEA) to extend the regulatory authority of the Commodity Futures Trading Commission (CFTC) to certain transactions in derivatives involving specified energy commodities ("included energy transactions"), including those on foreign boards of trade. Defines "included energy transaction" as a contract, agreement, or transaction in an energy commodity for future delivery that: (1) provides for a delivery point in the United States; or (2) is transacted on a computer terminal located in the United States. Prohibits the CFTC from exempting from regulation any "included energy transaction" unless certain notice to Congress and public comment requirements are met. Declares null and void any CFTC "no-action letter" exemptions from CEA requirements for "included energy transactions." Requires the CFTC to establish uniform limits on the aggregate number of positions with respect to "included energy transactions" which may be held by any person for the prompt month, for each month, and for all months in all markets subject to CFTC jurisdiction. Exclu…