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Condensed Schedule of Investment | 9 Months Ended
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Sep. 30, 2012
Condensed Schedule of Investments | United States 12 Month Natural Gas Fund, LP Condensed Schedule of Investments (Unaudited) At September 30, 2012
|  | Number of Contracts |  |  | Unrealized Gain (Loss) on Open Commodity Contracts |  |  | % of Partners' Capital |
Open Futures Contracts - Long
United States Contracts |  |  |  |  |  |  |  |  |  |  |  |
NYMEX Natural Gas Futures NG November 2012 contracts, expiring October 2012 |  |  | 114 |  |  | $ | (48,210 | ) |  |  | (0.09 | )
NYMEX Natural Gas Futures NG December 2012 contracts, expiring November 2012 |  |  | 114 |  |  |  | 26,790 |  |  |  | 0.05 |
NYMEX Natural Gas Futures NG January 2013 contracts, expiring December 2012 |  |  | 115 |  |  |  | 137,520 |  |  |  | 0.27 |
NYMEX Natural Gas Futures NG February 2013 contracts, expiring January 2013 |  |  | 114 |  |  |  | 239,670 |  |  |  | 0.46 |
NYMEX Natural Gas Futures NG March 2013 contracts, expiring February 2013 |  |  | 115 |  |  |  | 223,020 |  |  |  | 0.43 |
NYMEX Natural Gas Futures NG April 2013 contracts, expiring March 2013 |  |  | 115 |  |  |  | 352,680 |  |  |  | 0.69 |
NYMEX Natural Gas Futures NG May 2013 contracts, expiring April 2013 |  |  | 114 |  |  |  | 488,380 |  |  |  | 0.95 |
NYMEX Natural Gas Futures NG June 2013 contracts, expiring May 2013 |  |  | 114 |  |  |  | 261,050 |  |  |  | 0.51 |
NYMEX Natural Gas Futures NG July 2013 contracts, expiring June 2013 |  |  | 115 |  |  |  | 538,640 |  |  |  | 1.05 |
NYMEX Natural Gas Futures NG August 2013 contracts, expiring July 2013 |  |  | 114 |  |  |  | 223,310 |  |  |  | 0.43 |
NYMEX Natural Gas Futures NG September 2013 contracts, expiring August 2013 |  |  | 114 |  |  |  | 338,310 |  |  |  | 0.66 |
NYMEX Natural Gas Futures NG October 2013 contracts, expiring September 2013 |  |  | 115 |  |  |  | 184,020 |  |  |  | 0.36 |
Total Open Futures Contracts |  |  | 1,373 |  |  | $ | 2,965,180 |  |  |  | 5.77 |
|  | Principal Amount |  |  | Market Value |  |  |  |
Cash Equivalents
United States Treasury Obligation |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury Bill, 0.09%, 10/11/2012 |  | $ | 3,000,000 |  |  | $ | 2,999,926 |  |  |  | 5.84 |
United States - Money Market Funds |  |  |  |  |  |  |  |  |  |  |  |
Fidelity Institutional Government Portfolio - Class I |  |  | 2,509,053 |  |  |  | 2,509,053 |  |  |  | 4.88 |
Goldman Sachs Financial Square Funds - Government Fund - Class SL |  |  | 1,502,134 |  |  |  | 1,502,134 |  |  |  | 2.93 |
Morgan Stanley Institutional Liquidity Fund - Government Portfolio |  |  | 6,509,874 |  |  |  | 6,509,874 |  |  |  | 12.67 |
Wells Fargo Advantage Government Money Market Fund - Class I |  |  | 10,000,167 |  |  |  | 10,000,167 |  |  |  | 19.46 |
Total Money Market Funds |  |  |  |  |  |  | 20,521,228 |  |  |  | 39.94 |
Total Cash Equivalents |  |  |  |  |  | $ | 23,521,154 |  |  |  | 45.78 |

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- Definition The entire disclosure for the information required in the supplementary schedule applicable to management investment companies summarizing the listing of holdings of unaffiliated investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-12C) -URI http://asc.fasb.org/extlink&oid=6955306&loc=d3e611225-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12C -Article 12 + Details
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