FAIR VALUE OF FINANCIAL INSTRUMENTS

12 Months Ended

Dec. 31, 2012

Fair Value Of Financial Instruments [Abstract]

Fair Value of Financial Instruments

NOTE 8 - FAIR VALUE OF FINANCIAL INSTRUMENTS

US12NG values its investments in accordance with Accounting Standards Codification 820 – Fair Value Measurements and Disclosures (“ASC 820”). ASC 820 defines fair value, establishes a framework for measuring fair value in generally accepted accounting principles, and expands disclosures about fair value measurement. The changes to past practice resulting from the application of ASC 820 relate to the definition of fair value, the methods used to measure fair value, and the expanded disclosures about fair value measurement. ASC 820 establishes a fair value hierarchy that distinguishes between: (1) market participant assumptions developed based on market data obtained from sources independent of US12NG (observable inputs) and (2) US12NG’s own assumptions about market participant assumptions developed based on the best information available under the circumstances (unobservable inputs). The three levels defined by the ASC 820 hierarchy are as follows:

Level I – Quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.

Level II – Inputs other than quoted prices included within Level I that are observable for the asset or liability, either directly or indirectly. Level II assets include the following: quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability, and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market-corroborated inputs).

Level III – Unobservable pricing input at the measurement date for the asset or liability. Unobservable inputs shall be used to measure fair value to the extent that observable inputs are not available.

In some instances, the inputs used to measure fair value might fall within different levels of the fair value hierarchy. The level in the fair value hierarchy within which the fair value measurement in its entirety falls shall be determined based on the lowest input level that is significant to the fair value measurement in its entirety.

The following table summarizes the valuation of US12NG’s securities at December 31, 2012 using the fair value hierarchy:

At December 31, 2012	Total			Level I			Level II		Level III
Short-Term Investments	$	23,922,430		$	23,922,430		$	—	$	—
Exchange-Traded Futures Contracts
United States Contracts		(906,580	)		(906,580	)		—		—

During the year ended December 31, 2012, there were no transfers between Level I and Level II.

The following table summarizes the valuation of US12NG’s securities at December 31, 2011 using the fair value hierarchy:

At December 31, 2011	Total			Level I			Level II		Level III
Short-Term Investments	$	12,278,369		$	12,278,369		$	—	$	—
Exchange-Traded Futures Contracts
United States Contracts		(8,583,320	)		(8,583,320	)		—		—

During the year ended December 31, 2011, there were no transfers between Level I and Level II.

Effective January 1, 2009, US12NG adopted the provisions of Accounting Standards Codification 815 – Derivatives and Hedging (“ASC 815”), which require presentation of qualitative disclosures about objectives and strategies for using derivatives, quantitative disclosures about fair value amounts and gains and losses on derivatives.

Fair Value of Derivative Instruments

Derivatives not Accounted for as Hedging Instruments	Statements of Financial Condition Location	Fair Value At December 31, 2012			Fair Value At December 31, 2011
Futures - Commodity Contracts	Assets	$	(906,580	)	$	(8,583,320	)

The Effect of Derivative Instruments on the Statements of Operations

		For the year ended December 31, 2012					For the year ended December 31, 2011						For the year ended December 31, 2010
Derivatives not Accounted for as Hedging Instruments	Location of Gain or (Loss) on Derivatives Recognized in Income	Realized Gain or (Loss) on Derivatives Recognized in Income			Change in Unrealized Gain or (Loss) on Derivatives Recognized in Income		Realized Gain or (Loss) on Derivatives Recognized in Income			Change in Unrealized Gain or (Loss) on Derivatives Recognized in Income			Realized Gain or (Loss) on Derivatives Recognized in Income			Change in Unrealized Gain or (Loss) on Derivatives Recognized in Income
Futures - Commodity Contracts	Realized loss on closed positions	$	(12,161,650	)			$	(7,653,100	)				$	(9,574,510	)
	Change in unrealized gain (loss) on open positions				$	7,676,740				$	(6,408,260	)				$	(3,837,730	)