United States Short Oil Fund Inactive 10-K26 Mar 142013 FY Annual reportFinancial data

Company Profile

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
Document And Entity Information (USD $)	Dec. 31, 2013	Mar. 24, 2014	Jun. 30, 2013
Document Information [Line Items]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'DNO	'	'
Entity Common Stock, Shares Outstanding	'	350,000	'
Entity Registrant Name	'United States Short Oil Fund, LP	'	'
Entity Central Index Key	'0001439567	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Non-accelerated Filer	'	'
Entity Public Float	'	'	$18,065,000

Condensed_Statements_of_Financ

Condensed Statements of Financial Condition (USD $)	Dec. 31, 2013	Dec. 31, 2012
Assets	'	'
Cash and cash equivalents (Notes 2 and 5)	$9,739,154	$12,561,552
Equity in trading accounts:	'	'
Cash and cash equivalents	616,338	1,461,676
Unrealized loss on open commodity futures contracts	-49,320	-735,330
Receivable from General Partner (Note 3)	78,799	107,023
Dividend receivable	51	103
Directors' fees receivable	429	655
Other assets	255	73
Total assets	10,385,706	13,395,752
Liabilities and Partners' Capital	'	'
Professional fees payable	110,203	125,232
General Partner management fees payable (Note 3)	5,787	7,007
Brokerage commissions payable	372	512
Other liabilities	606	415
Total liabilities	116,968	133,166
Commitments and Contingencies (Notes 3, 4 and 5)	'	'
Partners' Capital	'	'
General Partner	0	0
Limited Partners	10,268,738	13,262,586
Total Partners' Capital	10,268,738	13,262,586
Total liabilities and partners' capital	$10,385,706	$13,395,752
Limited Partners' shares outstanding	300,000	350,000
Net asset value per share	$34.23	$37.89
Market value per share	$34.19	$37.88

Condensed_Schedule_of_Investme

Condensed Schedule of Investments (USD $)	Dec. 31, 2013		Dec. 31, 2012
Unrealized Loss on Open Commodity Contracts	($49,320)		($735,330)
Open Futures Contracts, Short [Member] \| United States [Member] \| NYMEX WTI Crude Oil Futures CL February 2014 contracts, expiring January 2014 [Member]	'		'
Number of Contracts	104	[1]	'
Unrealized Loss on Open Commodity Contracts	-49,320	[1]	'
% of Partners' Capital	-0.48%	[1]	'
Open Futures Contracts, Short [Member] \| United States [Member] \| NYMEX Crude Oil Futures CL February 2013 contracts, expiring January 2013 [Member]	'		'
Number of Contracts	'		144	[2]
Unrealized Loss on Open Commodity Contracts	'		-735,330	[2]
% of Partners' Capital	'		-5.54%	[2]
Cash Equivalents [Member]	'		'
Market Values	5,509,185		4,009,494
% of Partners' Capital	53.65%		30.23%
Cash Equivalents [Member] \| US Treasury Securities [Member] \| U.S. Treasury Bill [Member]	'		'
Principal Amount	2,000,000		500,000
Market Values	1,999,670		499,979
% of Partners' Capital	19.47%		3.77%
Cash Equivalents [Member] \| United States [Member] \| Money Market Funds [Member]	'		'
Market Values	3,509,515		3,509,515
% of Partners' Capital	34.18%		26.46%
Cash Equivalents [Member] \| United States [Member] \| Money Market Funds [Member] \| Fidelity Institutional Government Portfolio, Class I [Member]	'		'
Principal Amount	3,453		3,453
Market Values	3,453		3,453
% of Partners' Capital	0.04%		0.03%
Cash Equivalents [Member] \| United States [Member] \| Money Market Funds [Member] \| Goldman Sachs Financial Square Funds, Government Fund, Class FS [Member]	'		'
Principal Amount	1,502,673		1,502,673
Market Values	1,502,673		1,502,673
% of Partners' Capital	14.63%		11.33%
Cash Equivalents [Member] \| United States [Member] \| Money Market Funds [Member] \| Morgan Stanley Institutional Liquidity Fund, Government Portfolio [Member]	'		'
Principal Amount	1,003,334		1,003,334
Market Values	1,003,334		1,003,334
% of Partners' Capital	9.77%		7.56%
Cash Equivalents [Member] \| United States [Member] \| Money Market Funds [Member] \| Wells Fargo Advantage Government Money Market Fund Class I [Member]	'		'
Principal Amount	1,000,055		1,000,055
Market Values	$1,000,055		$1,000,055
% of Partners' Capital	9.74%		7.54%

[1]	Collateral amounted to $616,338 on open futures contracts.
[2]	Collateral amounted to $1,461,692 on open futures contracts.

Condensed_Schedule_of_Investme1

Condensed Schedule of Investments (Parenthetical) (USD $)	12 Months Ended
Condensed Schedule of Investments (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Collateral Amount On Open Futures Contracts	616,338	1,461,692
NYMEX WTI Crude Oil Futures CL February 2014 contracts, expiring January 2014 [Member] \| Open Cleared Swap and Futures Contract [Member] \| Open Futures Contracts, Short [Member]	'	'
Expiration date	'January 2014	'
NYMEX WTI Crude Oil Futures CL August 2013 contracts, expiring October 2013 [Member] \| Open Cleared Swap and Futures Contract [Member] \| Open Futures Contracts, Short [Member]	'	'
Expiration date	'	'January 2013
U.S. Treasury Bill [Member] \| US Treasury Securities [Member] \| Cash Equivalents [Member]	'	'
Interest rate	0.07%	0.10%
Expiration date	'3/27/2014	'1/17/2013

Condensed_Statements_of_Operat

Condensed Statements of Operations (USD $)	12 Months Ended
Condensed Statements of Operations (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Gain (loss) on trading of commodity futures contracts:	'	'	'
Realized gain (loss) on closed positions	($3,569,140)	$3,819,590	($1,332,380)
Change in unrealized gain (loss) on open positions	686,010	-739,490	210,020
Dividend income	731	1,501	674
Interest income	5,477	2,118	1,264
Other income	8,400	5,250	5,700
Total income (loss)	-2,868,522	3,088,969	-1,114,722
Expenses	'	'	'
Professional fees	110,203	125,232	131,449
General Partner management fees (Note 3)	125,784	72,821	61,594
Brokerage commissions	21,444	13,770	12,335
Other expenses	7,052	3,485	3,485
Total expenses	264,483	215,308	208,863
Expense waiver (Note 3)	-78,799	-107,023	-121,023
Net expenses	185,684	108,285	87,840
Net income (loss)	($3,054,206)	$2,980,684	($1,202,562)
Net income (loss) per limited partnership share	($3.66)	$1.73	($4.26)
Net income (loss) per weighted average limited partnership share	($5.04)	$9.23	($4.61)
Weighted average limited partnership shares outstanding	606,027	322,951	260,822

Condensed_Statement_of_Changes

Condensed Statement of Changes in Partners' Capital (USD $)	Total	General Partner [Member]	Limited Partner [Member]
Balances at Dec. 31, 2010	$8,083,801	$0	$8,083,801
Net asset value, beginning of period at Dec. 31, 2010	$40.42	'	'
Addition of partnership shares	16,038,193	0	16,038,193
Redemption of partnership units	-12,072,267	0	-12,072,267
Net Income (Loss)	-1,202,562	0	-1,202,562
Balances at Dec. 31, 2011	10,847,165	0	10,847,165
Net asset value, end of period at Dec. 31, 2011	$36.16	'	'
Addition of partnership shares	25,088,526	0	25,088,526
Redemption of partnership units	-25,653,789	0	-25,653,789
Net Income (Loss)	2,980,684	0	2,980,684
Balances at Dec. 31, 2012	13,262,586	0	13,262,586
Net asset value, end of period at Dec. 31, 2012	$37.89	'	'
Addition of partnership shares	45,194,080	0	45,194,080
Redemption of partnership units	-45,133,722	0	-45,133,722
Net Income (Loss)	-3,054,206	0	-3,054,206
Balances at Dec. 31, 2013	$10,268,738	$0	$10,268,738
Net asset value, end of period at Dec. 31, 2013	$34.23	'	'

Condensed_Statement_of_Changes1

Condensed Statement of Changes in Partners' Capital (Parenthetical)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Addition partnership shares, shares	1,350,000	700,000	400,000
Redemption partnership shares, shares	1,400,000	650,000	300,000

Condensed_Statements_of_Cash_F

Condensed Statements of Cash Flows (USD $)	12 Months Ended
Condensed Statements of Cash Flows (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash Flows from Operating Activities:	'	'	'
Net income (loss)	($3,054,206)	$2,980,684	($1,202,562)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:	'	'	'
(Increase) decrease in commodity futures trading account - cash and cash equivalents	845,338	-11,656	-605,340
Unrealized (gain) loss on futures contracts	-686,010	739,490	-210,020
Decrease in receivable from General Partner	28,224	14,000	54,424
(Increase) decrease in dividend receivable	52	-38	136
(Increase) decrease in directorsâ€™ fees receivable	226	-26	-629
(Increase) decrease in interest receivable	0	4	-4
(Increase) decrease in other assets	-182	-45	803
Increase (decrease) in investment payable	0	-5	5
Decrease in professional fees payable	-15,029	-6,217	-68,417
Increase (decrease) in General Partner management fees payable	-1,220	1,452	1,338
Increase (decrease) in brokerage commissions payable	-140	125	45
Increase (decrease) in other liabilities	191	-174	2
Net cash provided by (used in) operating activities	-2,882,756	3,717,594	-2,030,219
Cash Flows from Financing Activities:	'	'	'
Addition of partnership shares	45,194,080	25,088,526	16,038,193
Redemption of partnership shares	-45,133,722	-25,653,789	-12,072,267
Net cash provided by (used in) financing activities	60,358	-565,263	3,965,926
Net Increase (Decrease) in Cash and Cash Equivalents	-2,822,398	3,152,331	1,935,707
Cash and Cash Equivalents, beginning of year	12,561,552	9,409,221	7,473,514
Cash and Cash Equivalents, end of year	$9,739,154	$12,561,552	$9,409,221

Organization_and_Business

Organization and Business	12 Months Ended
Organization and Business	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
ORGANIZATION AND BUSINESS	'
	NOTE 1 - ORGANIZATION AND BUSINESS

	The United States Short Oil Fund, LP (“DNO”) was organized as a limited partnership under the laws of the state of Delaware on June 30, 2008. DNO is a commodity pool that issues limited partnership shares (“shares”) that may be purchased and sold on the NYSE Arca, Inc. (the “NYSE Arca”). DNO will continue in perpetuity, unless terminated sooner upon the occurrence of one or more events as described in its Second Amended and Restated Agreement of Limited Partnership dated as of March 1, 2013 (the “LP Agreement”). The investment objective of DNO is for the daily changes in percentage terms of its shares’ net asset value (“NAV”) to inversely reflect the daily changes in percentage terms of the spot price of West Texas Intermediate (“WTI”) light, sweet crude oil delivered to Cushing, Oklahoma, as measured by the daily changes in the price of the futures contract for light, sweet crude oil traded on the New York Mercantile Exchange (the “NYMEX”) that is the near month contract to expire, except when the near month contract is within two weeks of expiration, in which case the futures contract will be the next month contract to expire (the “Benchmark Futures Contract”), less DNO’s expenses. It is not the intent of DNO to be operated in a fashion such that the per share NAV will equal, in dollar terms, the inverse of the spot price of WTI light, sweet crude oil or any particular futures contract based on WTI light, sweet crude oil. It is not the intent of DNO to be operated in a fashion such that its NAV will reflect the inverse of the percentage change of the price of any particular futures contract as measured over a time period greater than one day. United States Commodity Funds LLC (“USCF”), the general partner of DNO, believes that it is not practical to manage the portfolio to achieve such an investment goal when investing in Futures Contracts (as defined below) and Other Crude Oil-Related Investments (as defined below). DNO accomplishes its objective through investments in short positions in futures contracts for WTI light, sweet crude oil and other types of crude oil, diesel-heating oil, gasoline, natural gas and other petroleum-based fuels that are traded on the NYMEX, ICE Futures or other U.S. and foreign exchanges (collectively, “Futures Contracts”) and other crude oil-related investments such as cash-settled options on Futures Contracts, forward contracts for oil, cleared swap contracts and over-the-counter transactions that are based on the price of crude oil, diesel-heating oil, gasoline, natural gas and other petroleum-based fuels, Futures Contracts and indices based on the foregoing (collectively, “Other Crude Oil-Related Investments”). For convenience, and unless otherwise specified, Futures Contracts and Other Crude Oil-Related Investments are collectively referred to as “Crude Oil Interests.” As of December 31, 2013, DNO held short positions in 104 Crude Oil Futures CL Contracts traded on the NYMEX. DNO did not hold short positions on ICE Futures as of December 31, 2013.

	DNO commenced investment operations on September 24, 2009 and has a fiscal year ending on December 31. USCF is responsible for the management of DNO. USCF is a member of the National Futures Association (the “NFA”) and became a commodity pool operator registered with the Commodity Futures Trading Commission (the “CFTC”) effective December 1, 2005. USCF is also the general partner of the United States Oil Fund, LP (“USO”), the United States Natural Gas Fund, LP (“UNG”), the United States 12 Month Oil Fund, LP (“USL”), the United States Gasoline Fund, LP (“UGA”) and the United States Diesel-Heating Oil Fund, LP (“UHN”), which listed their limited partnership shares on the American Stock Exchange (the “AMEX”) under the ticker symbols “DNO” on April 10, 2006, “UNG” on April 18, 2007, “USL” on December 6, 2007, “UGA” on February 26, 2008 and “UHN” on April 9, 2008, respectively. As a result of the acquisition of the AMEX by NYSE Euronext, each of USO’s, UNG’s, USL’s, UGA’s and UHN’s shares commenced trading on the NYSE Arca on November 25, 2008. USCF is also the general partner of the United States 12 Month Natural Gas Fund, LP (“UNL”) and the United States Brent Oil Fund, LP (“BNO”), which listed their limited partnership shares on the NYSE Arca under the ticker symbols “UNL” on November 18, 2009 and “BNO” on June 2, 2010, respectively. USCF is also the sponsor of the United States Commodity Index Fund (“USCI”), the United States Copper Index Fund (“CPER”), the United States Agriculture Index Fund (“USAG”) and the United States Metals Index Fund (“USMI”), each of which is a series of the United States Commodity Index Funds Trust. USCI, CPER, USAG and USMI listed their shares on the NYSE Arca under the ticker symbol “USCI” on August 10, 2010, “CPER” on November 15, 2011, “USAG” on April 13, 2012 and “USMI” on June 19, 2012, respectively. All funds listed previously are referred to collectively herein as the “Related Public Funds.” USCF has also filed registration statements to register shares of the United States Sugar Fund (“USSF”), the United States Natural Gas Double Inverse Fund (“UNGD”), the United States Gasoil Fund (“USGO”) and the United States Asian Commodities Basket Fund (“UAC”), each a series of the United States Commodity Funds Trust I, and the US Golden Currency Fund (“HARD”), a series of the United States Currency Funds Trust. On December 30, 2013, USCF withdrew the registration statement for USSF, UNGD, USGO and UAC effective December 31, 2013. On January 27, 2014, USCF withdrew the registration statement for HARD. HARD was never available to the public and at the time of withdrawal, HARD was still in the process of review by various regulatory agencies which have regulatory authority over USCF and HARD.

	Effective February 29, 2012, DNO issues shares to certain authorized purchasers (“Authorized Purchasers”) by offering baskets consisting of 50,000 shares (“Creation Baskets”) through ALPS Distributors, Inc., as the marketing agent (the “Marketing Agent”). Prior to February 29, 2012, DNO issued shares to Authorized Purchasers by offering baskets consisting of 100,000 shares through the Marketing Agent. The purchase price for a Creation Basket is based upon the NAV of a share calculated shortly after the close of the core trading session on the NYSE Arca on the day the order to create the basket is properly received.

	From July 1, 2011 through December 31, 2013 (and continuing at least through May 1, 2014), the applicable transaction fee paid by Authorized Purchasers is $350 to DNO for each order they place to create or redeem one or more baskets (“Redemption Baskets”); prior to July 1, 2011, this fee was $1,000. Shares may be purchased or sold on a nationally recognized securities exchange in smaller increments than a Creation Basket or Redemption Basket. Shares purchased or sold on a nationally recognized securities exchange are not purchased or sold at the per share NAV of DNO but rather at market prices quoted on such exchange.

	In September 2009, DNO initially registered 25,000,000 shares on Form S-1 with the U.S. Securities and Exchange Commission (the “SEC”). On September 24, 2009, DNO listed its shares on the NYSE Arca under the ticker symbol “DNO”. On that day, DNO established its initial per share NAV by setting the price at $50.00 and issued 200,000 shares in exchange for $10,000,000. DNO also commenced investment operations on September 24, 2009, by taking short positions in Futures Contracts traded on the NYMEX based on WTI light, sweet crude oil. As of December 31, 2013, DNO had registered a total of 25,000,000 shares.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
Summary of Significant Accounting Policies	Dec. 31, 2013
Summary Of Significant Accounting Policies [Abstract]	'
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

	Revenue Recognition

	Commodity futures contracts, forward contracts, physical commodities, and related options are recorded on the trade date. All such transactions are recorded on the identified cost basis and marked to market daily. Unrealized gains or losses on open contracts are reflected in the statements of financial condition and represent the difference between the original contract amount and the market value (as determined by exchange settlement prices for futures contracts and related options and cash dealer prices at a predetermined time for forward contracts, physical commodities, and their related options) as of the last business day of the year or as of the last date of the financial statements. Changes in the unrealized gains or losses between periods are reflected in the statements of operations. DNO earns interest on its assets denominated in U.S. dollars on deposit with the futures commission merchant at the 90-day Treasury bill rate. In addition, DNO earns income on funds held at the custodian or futures commission merchant at prevailing market rates earned on such investments.

	Brokerage Commissions

	Brokerage commissions on all open commodity futures contracts are accrued on a full-turn basis.

	Income Taxes

	DNO is not subject to federal income taxes; each partner reports his/her allocable share of income, gain, loss deductions or credits on his/her own income tax return.

	In accordance with accounting principles generally accepted in the United States of America (“GAAP”), DNO is required to determine whether a tax position is more likely than not to be sustained upon examination by the applicable taxing authority, including resolution of any tax related appeals or litigation processes, based on the technical merits of the position. DNO files an income tax return in the U.S. federal jurisdiction, and may file income tax returns in various U.S. states. DNO is not subject to income tax return examinations by major taxing authorities for years before 2010. The tax benefit recognized is measured as the largest amount of benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement. De-recognition of a tax benefit previously recognized results in DNO recording a tax liability that reduces net assets. However, DNO’s conclusions regarding this policy may be subject to review and adjustment at a later date based on factors including, but not limited to, on-going analysis of and changes to tax laws, regulations and interpretations thereof. DNO recognizes interest accrued related to unrecognized tax benefits and penalties related to unrecognized tax benefits in income tax fees payable, if assessed. No interest expense or penalties have been recognized as of and for the year ended December 31, 2013.

	Creations and Redemptions

	Effective February 29, 2012, Authorized Purchasers may purchase Creation Baskets or redeem Redemption Baskets only in blocks of 50,000 shares at a price equal to the NAV of the shares calculated shortly after the close of the core trading session on the NYSE Arca on the day the order is placed. Prior to February 29, 2012, Authorized Purchasers could only purchase Creation Baskets or redeem Redemption Baskets in blocks of 100,000 shares.

	DNO receives or pays the proceeds from shares sold or redeemed within three business days after the trade date of the purchase or redemption. The amounts due from Authorized Purchasers are reflected in DNO’s statements of financial condition as receivable for shares sold, and amounts payable to Authorized Purchasers upon redemption are reflected as payable for shares redeemed.

	Partnership Capital and Allocation of Partnership Income and Losses

	Profit or loss shall be allocated among the partners of DNO in proportion to the number of shares each partner holds as of the close of each month. USCF may revise, alter or otherwise modify this method of allocation as described in the LP Agreement.

	Calculation of Per Share Net Asset Value

	DNO’s per share NAV is calculated on each NYSE Arca trading day by taking the current market value of its total assets, subtracting any liabilities and dividing that amount by the total number of shares outstanding. DNO uses the closing price for the contracts on the relevant exchange on that day to determine the value of contracts held on such exchange.

	Net Income (Loss) Per Share

	Net income (loss) per share is the difference between the per share NAV at the beginning of each period and at the end of each period. The weighted average number of shares outstanding was computed for purposes of disclosing net income (loss) per weighted average share. The weighted average shares are equal to the number of shares outstanding at the end of the period, adjusted proportionately for shares added and redeemed based on the amount of time the shares were outstanding during such period. There were no shares held by USCF at December 31, 2013.

	Offering Costs

	Offering costs incurred in connection with the registration of additional shares after the initial registration of shares are borne by DNO. These costs include registration fees paid to regulatory agencies and all legal, accounting, printing and other expenses associated with such offerings. These costs are accounted for as a deferred charge and thereafter amortized to expense over twelve months on a straight-line basis or a shorter period if warranted.

	Cash Equivalents

	Cash equivalents include money market funds and overnight deposits or time deposits with original maturity dates of six months or less.

	Reclassification

	Certain amounts in the accompanying financial statements were reclassified to conform to the current presentation.

	Use of Estimates

	The preparation of financial statements in conformity with GAAP requires USCF to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of the revenue and expenses during the reporting period. Actual results may differ from those estimates and assumptions.

Fees_Paid_by_the_Fund_and_Rela

Fees Paid by the Fund and Related Party Transactions	12 Months Ended
Fees Paid by the Fund and Related Party Transactions	Dec. 31, 2013
Fees Paid and Related Party Transactions Disclosure [Abstract]	'
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS	'
	NOTE 3 - FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS

	USCF Management Fee

	Under the LP Agreement, USCF is responsible for investing the assets of DNO in accordance with the objectives and policies of DNO. In addition, USCF has arranged for one or more third parties to provide administrative, custody, accounting, transfer agency and other necessary services to DNO. For these services, DNO is contractually obligated to pay USCF a fee, which is paid monthly, equal to 0.60% per annum of average daily total net assets.

	Ongoing Registration Fees and Other Offering Expenses

	DNO pays all costs and expenses associated with the ongoing registration of its shares subsequent to the initial offering. These costs include registration or other fees paid to regulatory agencies in connection with the offer and sale of shares, and all legal, accounting, printing and other expenses associated with such offer and sale. For the years ended December 31, 2013, 2012 and 2011, DNO did not incur any registration fees or other offering expenses.

	Directors’ Fees and Expenses

	DNO is responsible for paying its portion of the directors’ and officers’ liability insurance for DNO and the Related Public Funds and the fees and expenses of the independent directors who also serve as audit committee members of DNO and the Related Public Funds organized as limited partnerships and, as of July 8, 2011, the Related Public Funds organized as a series of a Delaware statutory trust. DNO shares the fees and expenses on a pro rata basis with each Related Public Fund, as described above, based on the relative assets of each fund computed on a daily basis. These fees and expenses for the year ended December 31, 2013 were $555,465 for DNO and the Related Public Funds. DNO’s portion of such fees and expenses for the year ended December 31, 2013 was $3,907. For the year ended December 31, 2012, these fees and expenses were $540,586 for DNO and the Related Public Funds. DNO’s portion of such fees and expenses for the year ended December 31, 2012 was $1,664. For the year ended December 31, 2011, these fees and expenses were $607,582, for DNO and the Related Public Funds. DNO’s portion of such fees and expenses for the years ended December 31, 2011 was $1,099.

	Licensing Fees

	As discussed in Note 4 below, DNO entered into a licensing agreement with the NYMEX on May 22, 2009, as amended on October 20, 2011. Pursuant to the agreement, through October 19, 2011, DNO and the Related Public Funds, other than BNO, USCI, CPER, USAG and USMI, paid a licensing fee that was equal to 0.04% for the first $1,000,000,000 of combined net assets of the funds and 0.02% for combined net assets above $1,000,000,000. On and after October 20, 2011, DNO and the Related Public Funds, other than BNO, USCI, CPER, USAG and USMI, pay a licensing fee that is equal to 0.015% on all net assets. During the years ended December 31, 2013, 2012 and 2011, DNO incurred $3,145, $1,821 and $2,387, respectively, under this arrangement.

	Investor Tax Reporting Cost

	The fees and expenses associated with DNO’s audit expenses and tax accounting and reporting requirements are paid by DNO. These costs were approximately $140,000, $75,000 and $45,000, respectively, for the years ended December 31, 2013, 2012 and 2011.

	Other Expenses and Fees and Expense Waivers

	In addition to the fees described above, DNO pays all brokerage fees and other expenses in connection with the operation of DNO, excluding costs and expenses paid by USCF as outlined in Note 4 below. USCF has voluntarily agreed to pay certain expenses typically borne by DNO, to the extent that such expenses exceed 0.15% (15 basis points) of DNO’s NAV, on an annualized basis, through at least June 30, 2014. USCF has no obligation to continue such payments into subsequent periods. For the year ended December 31, 2013, USCF waived $78,799, of DNO’s expenses. This voluntary expense waiver is in addition to those amounts USCF is contractually obligated to pay as described in Note 4.

Contracts_and_Agreements

Contracts and Agreements	12 Months Ended
Contracts and Agreements	Dec. 31, 2013
Contracts and Agreements [Abstract]	'
CONTRACTS AND AGREEMENTS	'
	NOTE 4 - CONTRACTS AND AGREEMENTS

	DNO is party to a marketing agent agreement, dated as of June 8, 2009, as amended from time to time, with the Marketing Agent and USCF, whereby the Marketing Agent provides certain marketing services for DNO as outlined in the agreement. The fee of the Marketing Agent, which is borne by USCF, is equal to 0.06% on DNO’s assets up to $3 billion; and 0.04% on DNO’s assets in excess of $3 billion.

	The above fee does not include the following expenses, which are also borne by USCF: the cost of placing advertisements in various periodicals; website construction and development; or the printing and production of various marketing materials.

	DNO is also party to a custodian agreement, dated October 7, 2008, as amended from time to time, with Brown Brothers Harriman & Co. (“BBH&Co.”) and USCF, whereby BBH&Co. holds investments on behalf of DNO. USCF pays the fees of the custodian, which are determined by the parties from time to time. In addition, DNO is party to an administrative agency agreement, dated October 7, 2008, as amended from time to time, with USCF and BBH&Co., whereby BBH&Co. acts as the administrative agent, transfer agent and registrar for DNO. USCF also pays the fees of BBH&Co. for its services under such agreement and such fees are determined by the parties from time to time.

	Currently, USCF pays BBH&Co. for its services, in the foregoing capacities, a minimum amount of $75,000 annually for its custody, fund accounting and fund administration services rendered to DNO and each of the Related Public Funds, as well as a $20,000 annual fee for its transfer agency services. In addition, USCF pays BBH&Co. an asset-based charge of (a) 0.06% for the first $500 million of the Related Public Funds’ combined net assets, (b) 0.0465% for the Related Public Funds’ combined net assets greater than $500 million but less than $1 billion, and (c) 0.035% once the Related Public Funds’ combined net assets exceed $1 billion. The annual minimum amount will not apply if the asset-based charge for all accounts in the aggregate exceeds $75,000. USCF also pays transaction fees ranging from $7 to $15 per transaction.

	On October 8, 2013, DNO entered into a brokerage agreement with RBC Capital Markets, LLC (“RBC Capital” or “RBC”) to serve as DNO’s futures commission merchant (“FCM”), effective October 10, 2013. Prior to October 10, 2013, the FCM was UBS Securities LLC (“UBS Securities”). The agreements require RBC Capital and UBS Securities to provide services to DNO in connection with the purchase and sale of Futures Contracts and Other Crude Oil-Related Investments that may be purchased and sold by or through RBC Capital and/or UBS Securities for DNO’s account. In accordance with each agreement, RBC Capital and UBS Securities charge DNO commissions of approximately $7 to $8 per round-turn trade, including applicable exchange and NFA fees for Futures Contracts and options on Futures Contracts. Such fees include those incurred when purchasing Futures Contracts and options on Futures Contracts when DNO issues shares as a result of a Creation Basket, as well as fees incurred when selling Futures Contracts and options on Futures Contracts when DNO redeems shares as a result of a Redemption Basket. Such fees are also incurred when Futures Contracts and options on Futures Contracts are purchased or redeemed for the purpose of rebalancing the portfolio. DNO also incurs commissions to brokers for the purchase and sale of Futures Contracts, Other Crude Oil-Related Investments or short-term obligations of the United States of two years or less (“Treasuries”). During the year ended December 31, 2013, total commissions accrued to brokers amounted to $21,444. Of this amount, approximately $18,763, or 87.50%, was a result of rebalancing costs and approximately, $2,681 or 12.50% was the result of trades necessitated by creation and redemption activity. By comparison, during the year ended December 31, 2012, total commissions accrued to brokers amounted to $13,770. Of this amount, approximately $12,010, or 87.22%, was a result of rebalancing costs and approximately $1,760, or 12.78%, was the result of trades necessitated by creation and redemption activity. By comparison, during the year ended December 31, 2011, total commissions accrued to brokers amounted to $12,335. Of this amount, approximately $11,421, or 92.59%, was a result of rebalancing costs and approximately $914, or 7.41%, was the result of trades necessitated by creation and redemption activity. The increase in the total commissions accrued to brokers for the year ended December 31, 2013 as compared to the year ended December 31, 2012 was primarily a function of increased brokerage fees due to a higher number of futures contracts being held and traded as a result of the increase in DNO’s total net assets during the year ended December 31, 2013. The increase in total net assets required DNO to sell short a greater number of Futures Contracts and incur a greater amount of commissions. The increase in the total commissions accrued to brokers for the year ended December 31, 2012, as compared to the year ended December 31, 2011, was primarily a function of increased brokerage fees due to a higher number of futures contracts being held and traded as a result of the increase in DNO’s total net assets during the year ended December 31, 2012. As an annualized percentage of average daily total net assets, the figure for the year ended December 31, 2013 represents approximately 0.10% of average daily total net assets. By comparison, the figure for the year ended December 31, 2012 represented approximately 0.11% of average daily total net assets and the figure for the year ended December 31, 2011 represented approximately 0.12% of average daily total net assets. However, there can be no assurance that commission costs and portfolio turnover will not cause commission expenses to rise in future quarters.

	DNO and the NYMEX entered into a licensing agreement on May 22, 2009, as amended on October 20, 2011, whereby DNO was granted a non-exclusive license to use certain of the NYMEX’s settlement prices and service marks. Under the licensing agreement, DNO and the Related Public Funds, other than BNO, USCI, CPER, USAG and USMI, pay the NYMEX an asset-based fee for the license, the terms of which are described in Note 3. DNO expressly disclaims any association with the NYMEX or endorsement of DNO by the NYMEX and acknowledges that “NYMEX” and “New York Mercantile Exchange” are registered trademarks of the NYMEX.

Financial_Instruments_OffBalan

Financial Instruments, Off-Balance Sheet Risks and Contingencies	12 Months Ended
	Dec. 31, 2013
Disclosure Of Fair Value Off Balance Sheet Risks [Abstract]	'
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES	'
	NOTE 5 - FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES

	DNO engages in the trading of futures contracts, options on futures contracts and may engage in cleared swaps (collectively, “derivatives”). DNO is exposed to both market risk, which is the risk arising from changes in the market value of the contracts, and credit risk, which is the risk of failure by another party to perform according to the terms of a contract.

	DNO may enter into futures contracts, options on futures contracts and cleared swaps to gain exposure to changes in the value of an underlying commodity. A futures contract obligates the seller to deliver (and the purchaser to accept) the future delivery of a specified quantity and type of a commodity at a specified time and place. Some futures contracts may call for physical delivery of the asset, while others are settled in cash. The contractual obligations of a buyer or seller may generally be satisfied by taking or making physical delivery of the underlying commodity or by making an offsetting sale or purchase of an identical futures contract on the same or linked exchange before the designated date of delivery.

	The purchase and sale of futures contracts, options on futures contracts and cleared swaps require margin deposits with a futures commission merchant. Additional deposits may be necessary for any loss on contract value. The Commodity Exchange Act requires a futures commission merchant to segregate all customer transactions and assets from the futures commission merchant’s proprietary activities.

	Futures contracts and cleared swaps involve, to varying degrees, elements of market risk (specifically commodity price risk) and exposure to loss in excess of the amount of variation margin. The face or contract amounts reflect the extent of the total exposure DNO has in the particular classes of instruments. Additional risks associated with the use of futures contracts are an imperfect correlation between movements in the price of the futures contracts and the market value of the underlying securities and the possibility of an illiquid market for a futures contract.

	All of the futures contracts held by DNO were exchange-traded through December 31, 2013. The risks associated with exchange-traded contracts are generally perceived to be less than those associated with over-the-counter transactions since, in over-the-counter transactions, a party must rely solely on the credit of its respective individual counterparties. When DNO enters into non-exchange traded contracts including Exchange for Risk or EFR transactions, it is subject to the credit risk associated with counterparty non-performance. The credit risk from counterparty non-performance associated with such instruments is the net unrealized gain, if any, on the transaction. DNO has credit risk under its futures contracts since the sole counterparty to all domestic and foreign futures contracts is the clearinghouse for the exchange on which the relevant contracts are traded. In addition, DNO bears the risk of financial failure by the clearing broker.

	DNO’s cash and other property, such as Treasuries, deposited with a futures commission merchant are considered commingled with all other customer funds subject to the futures commission merchant’s segregation requirements. In the event of a futures commission merchant’s insolvency, recovery may be limited to a pro rata share of segregated funds available. It is possible that the recovered amount could be less than the total of cash and other property deposited. The insolvency of a futures commission merchant could result in the complete loss of DNO’s assets posted with that futures commission merchant; however, the majority of DNO’s assets are held in cash and/or cash equivalents with DNO’s custodian and would not be impacted by the insolvency of a futures commission merchant. The failure or insolvency of DNO’s custodian, however, could result in a substantial loss of DNO’s assets.

	USCF invests a portion of DNO’s cash in money market funds that seek to maintain a stable per share NAV. DNO is exposed to any risk of loss associated with an investment in such money market funds. As of December 31, 2013 and December 31, 2012, DNO held investments in money market funds in the amounts of $3,509,515 and $3,509,515, respectively. DNO also holds cash deposits with its custodian. Pursuant to a written agreement with BBH&Co., uninvested overnight cash balances are swept to offshore branches of U.S. regulated and domiciled banks located in Toronto, Canada; London, United Kingdom; Grand Cayman, Cayman Islands; and Nassau, Bahamas; which are subject to U.S. regulation and regulatory oversight. As of December 31, 2013 and December 31, 2012, DNO held cash deposits and investments in Treasuries in the amounts of $6,845,977 and $10,513,713, respectively, with the custodian and futures commission merchant. Some or all of these amounts may be subject to loss should DNO’s custodian and/or futures commission merchant cease operations.

	For derivatives, risks arise from changes in the market value of the contracts. Theoretically, DNO is exposed to market risk equal to the value of futures contracts purchased and unlimited liability on such contracts sold short. As both a buyer and a seller of options, DNO pays or receives a premium at the outset and then bears the risk of unfavorable changes in the price of the contract underlying the option.

	DNO’s policy is to continuously monitor its exposure to market and counterparty risk through the use of a variety of financial, position and credit exposure reporting controls and procedures. In addition, DNO has a policy of requiring review of the credit standing of each broker or counterparty with which it conducts business.

	The financial instruments held by DNO are reported in its statements of financial condition at market or fair value, or at carrying amounts that approximate fair value, because of their highly liquid nature and short-term maturity.

Financial_Highlights

Financial Highlights	12 Months Ended
Financial Highlights	Dec. 31, 2013
Supplemental Financial In Formation Disclosure [Abstract]	'
FINANCIAL HIGHLIGHTS	'
	NOTE 6 - FINANCIAL HIGHLIGHTS

	The following table presents per share performance data and other supplemental financial data for the years ended December 31, 2013, 2012 and 2011. This information has been derived from information presented in the financial statements.

		Year ended			Year ended			Year ended
		December 31,			December 31,			December 31,
		2013			2012			2011
	Per Share Operating Performance:

	Net asset value, beginning of year	$	37.89		$	36.16		$	40.42
	Total income (loss)		-3.35			2.07			-3.92
	Total expenses		-0.31			-0.34			-0.34
	Net increase (decrease) in net asset value		-3.66			1.73			-4.26
	Net asset value, end of year	$	34.23		$	37.89		$	36.16

	Total Return		-9.66	%		4.78	%		-10.54	%

	Ratios to Average Net Assets
	Total income (loss)		-13.68	%		25.45	%		-10.86	%
	Management fees		0.6	%		0.6	%		0.6	%
	Total expenses excluding management fees		0.66	%		1.17	%		1.43	%
	Expenses waived		-0.38	%		-0.88	%		-1.18	%
	Net expenses excluding management fees		0.29	%		0.29	%		0.25	%
	Net income (loss)		-14.57	%		24.56	%		-11.71	%

	Total returns are calculated based on the change in value during the period. An individual shareholder’s total return and ratio may vary from the above total returns and ratios based on the timing of contributions to and withdrawals from DNO.

Quarterly_Financial_Data_Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
Quarterly Financial Data (Unaudited)	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
QUARTERLY FINANCIAL DATA (Unaudited)	'
	NOTE 7 - QUARTERLY FINANCIAL DATA (Unaudited)

	The following summarized (unaudited) quarterly financial information presents the results of operations and other data for the three-month periods ended March 31, June 30, September 30 and December 31, 2013 and 2012.

		First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
		2013		2013		2013		2013
	Total Income (Loss)	$	-631,658	$	-184,793	$	-2,917,733	$	865,662
	Total Expenses		58,986		66,806		88,236		50,455
	Expense Waivers		-25,557		-23,926		-13,634		-15,682
	Net Expenses		33,429		42,880		74,602		34,773
	Net Income (Loss)	$	-665,087	$	-227,673	$	-2,992,335	$	830,889
	Net Income (Loss) per Share	$	-1.81	$	0.03	$	-3.07	$	1.19

		First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
		2012		2012		2012		2012
	Total Income (Loss)	$	-188,888	$	3,964,326	$	-447,027	$	-239,442
	Total Expenses		40,087		56,904		45,188		73,129
	Expense Waivers		-17,810		-14,354		-26,872		-47,987
	Net Expenses		22,277		42,550		18,316		25,142
	Net Income (Loss)	$	-211,165	$	3,921,776	$	-465,343	$	-264,584
	Net Income (Loss) per Share	$	-1.6	$	6.78	$	-3.51	$	0.06

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments

12 Months Ended

Dec. 31, 2013

Fair Value Of Financial Instruments [Abstract]

FAIR VALUE OF FINANCIAL INSTRUMENTS

NOTE 8 - FAIR VALUE OF FINANCIAL INSTRUMENTS

DNO 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 DNO (observable inputs) and (2) DNO’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 DNO’s securities at December 31, 2013 using the fair value hierarchy:

At December 31, 2013

Total

Level I

Level II

Level III

Short-Term Investments

5,509,185

Exchange-Traded Futures Contracts

United States Contracts

-49,320

During the year ended December 31, 2013, there were no transfers between Level I and Level II.

The following table summarizes the valuation of DNO’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

4,009,494

—

Exchange-Traded Futures Contracts

United States Contracts

-735,330

—

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

Effective January 1, 2009, DNO adopted the provisions of Accounting Standards Codification 815 – Derivatives and Hedging, 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

Fair Value

Statements of Financial

Derivatives not Accounted for as Hedging Instruments

Condition Location

December 31, 2013

December 31, 2012

Futures - Commodity Contracts

Assets

-49,320

-735,330

The Effect of Derivative Instruments on the Statements of Operations

For the year ended

December 31, 2013

December 31, 2012

December 31, 2011

Location of

Change in

Gain or

Realized

Unrealized

Realized

Unrealized

Realized

Unrealized

Derivatives not

(Loss) on

Gain or (Loss)

Accounted for as

Derivatives

on Derivatives

Hedging

Recognized

Instruments

in Income

Futures -

Realized gain (loss) on closed positions

-3,569,140

3,819,590

-1,332,380

Commodity Contracts

Change in unrealized gain (loss) on open positions

686,010

-739,490

210,020

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	12 Months Ended
Recent Accounting Pronouncements	Dec. 31, 2013
Recent Accounting Pronouncements [Abstract]	'
RECENT ACCOUNTING PRONOUNCEMENTS	'
	NOTE 9 - RECENT ACCOUNTING PRONOUNCEMENTS

	In December 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2011-11, “Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities.” The amendments in ASU No. 2011-11 require an entity to disclose information about offsetting and related arrangements to enable users of its financial statements to understand the effect of those arrangements on its financial position. ASU No. 2011-11 is effective for annual reporting periods beginning on or after January 1, 2013, and interim periods within those annual periods.

Subsequent_Events

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2013
Subsequent Events [Abstract]	'
SUBSEQUENT EVENTS	'
	NOTE 10 - SUBSEQUENT EVENTS

	DNO has performed an evaluation of subsequent events through the date the financial statements were issued. This evaluation did not result in any subsequent events that necessitated disclosures and/or adjustments.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 31, 2013
Summary Of Significant Accounting Policies [Abstract]	'
Revenue Recognition	'
	Revenue Recognition

	Commodity futures contracts, forward contracts, physical commodities, and related options are recorded on the trade date. All such transactions are recorded on the identified cost basis and marked to market daily. Unrealized gains or losses on open contracts are reflected in the statements of financial condition and represent the difference between the original contract amount and the market value (as determined by exchange settlement prices for futures contracts and related options and cash dealer prices at a predetermined time for forward contracts, physical commodities, and their related options) as of the last business day of the year or as of the last date of the financial statements. Changes in the unrealized gains or losses between periods are reflected in the statements of operations. DNO earns interest on its assets denominated in U.S. dollars on deposit with the futures commission merchant at the 90-day Treasury bill rate. In addition, DNO earns income on funds held at the custodian or futures commission merchant at prevailing market rates earned on such investments.

Brokerage Commissions	'
	Brokerage Commissions

	Brokerage commissions on all open commodity futures contracts are accrued on a full-turn basis.

Income Taxes	'
	Income Taxes

	DNO is not subject to federal income taxes; each partner reports his/her allocable share of income, gain, loss deductions or credits on his/her own income tax return.

	In accordance with accounting principles generally accepted in the United States of America (“GAAP”), DNO is required to determine whether a tax position is more likely than not to be sustained upon examination by the applicable taxing authority, including resolution of any tax related appeals or litigation processes, based on the technical merits of the position. DNO files an income tax return in the U.S. federal jurisdiction, and may file income tax returns in various U.S. states. DNO is not subject to income tax return examinations by major taxing authorities for years before 2010. The tax benefit recognized is measured as the largest amount of benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement. De-recognition of a tax benefit previously recognized results in DNO recording a tax liability that reduces net assets. However, DNO’s conclusions regarding this policy may be subject to review and adjustment at a later date based on factors including, but not limited to, on-going analysis of and changes to tax laws, regulations and interpretations thereof. DNO recognizes interest accrued related to unrecognized tax benefits and penalties related to unrecognized tax benefits in income tax fees payable, if assessed. No interest expense or penalties have been recognized as of and for the year ended December 31, 2013.

Creations and Redemptions	'
	Creations and Redemptions

	Effective February 29, 2012, Authorized Purchasers may purchase Creation Baskets or redeem Redemption Baskets only in blocks of 50,000 shares at a price equal to the NAV of the shares calculated shortly after the close of the core trading session on the NYSE Arca on the day the order is placed. Prior to February 29, 2012, Authorized Purchasers could only purchase Creation Baskets or redeem Redemption Baskets in blocks of 100,000 shares.

	DNO receives or pays the proceeds from shares sold or redeemed within three business days after the trade date of the purchase or redemption. The amounts due from Authorized Purchasers are reflected in DNO’s statements of financial condition as receivable for shares sold, and amounts payable to Authorized Purchasers upon redemption are reflected as payable for shares redeemed.

Partnership Capital and Allocation of Partnership Income and Losses	'
	Partnership Capital and Allocation of Partnership Income and Losses

	Profit or loss shall be allocated among the partners of DNO in proportion to the number of shares each partner holds as of the close of each month. USCF may revise, alter or otherwise modify this method of allocation as described in the LP Agreement.

Calculation of Per Unit Net Asset Value	'
	Calculation of Per Share Net Asset Value

	DNO’s per share NAV is calculated on each NYSE Arca trading day by taking the current market value of its total assets, subtracting any liabilities and dividing that amount by the total number of shares outstanding. DNO uses the closing price for the contracts on the relevant exchange on that day to determine the value of contracts held on such exchange.

Net Income (Loss) Per Unit	'
	Net Income (Loss) Per Share

	Net income (loss) per share is the difference between the per share NAV at the beginning of each period and at the end of each period. The weighted average number of shares outstanding was computed for purposes of disclosing net income (loss) per weighted average share. The weighted average shares are equal to the number of shares outstanding at the end of the period, adjusted proportionately for shares added and redeemed based on the amount of time the shares were outstanding during such period. There were no shares held by USCF at December 31, 2013.

Offering Costs	'
	Offering Costs

	Offering costs incurred in connection with the registration of additional shares after the initial registration of shares are borne by DNO. These costs include registration fees paid to regulatory agencies and all legal, accounting, printing and other expenses associated with such offerings. These costs are accounted for as a deferred charge and thereafter amortized to expense over twelve months on a straight-line basis or a shorter period if warranted.

Cash Equivalents	'
	Cash Equivalents

	Cash equivalents include money market funds and overnight deposits or time deposits with original maturity dates of six months or less.

Reclassification	'
	Reclassification

	Certain amounts in the accompanying financial statements were reclassified to conform to the current presentation.

Use of Estimates	'
	Use of Estimates

	The preparation of financial statements in conformity with GAAP requires USCF to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of the revenue and expenses during the reporting period. Actual results may differ from those estimates and assumptions.

Financial_Highlights_Tables

Financial Highlights (Tables)	12 Months Ended
Financial Highlights (Tables)	Dec. 31, 2013
Supplemental Financial In Formation Disclosure [Abstract]	'
Per Unit Performance Data and Other Supplemental Financial Data	'
	The following table presents per share performance data and other supplemental financial data for the years ended December 31, 2013, 2012 and 2011. This information has been derived from information presented in the financial statements.

		Year ended			Year ended			Year ended
		December 31,			December 31,			December 31,
		2013			2012			2011
	Per Share Operating Performance:

	Net asset value, beginning of year	$	37.89		$	36.16		$	40.42
	Total income (loss)		-3.35			2.07			-3.92
	Total expenses		-0.31			-0.34			-0.34
	Net increase (decrease) in net asset value		-3.66			1.73			-4.26
	Net asset value, end of year	$	34.23		$	37.89		$	36.16

	Total Return		-9.66	%		4.78	%		-10.54	%

	Ratios to Average Net Assets
	Total income (loss)		-13.68	%		25.45	%		-10.86	%
	Management fees		0.6	%		0.6	%		0.6	%
	Total expenses excluding management fees		0.66	%		1.17	%		1.43	%
	Expenses waived		-0.38	%		-0.88	%		-1.18	%
	Net expenses excluding management fees		0.29	%		0.29	%		0.25	%
	Net income (loss)		-14.57	%		24.56	%		-11.71	%

Quarterly_Financial_Data_Unaud1

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
Quarterly Financial Data (Unaudited) (Tables)	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Quarterly Financial Information Data (Unaudited)	'
	The following summarized (unaudited) quarterly financial information presents the results of operations and other data for the three-month periods ended March 31, June 30, September 30 and December 31, 2013 and 2012.

		First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
		2013		2013		2013		2013
	Total Income (Loss)	$	-631,658	$	-184,793	$	-2,917,733	$	865,662
	Total Expenses		58,986		66,806		88,236		50,455
	Expense Waivers		-25,557		-23,926		-13,634		-15,682
	Net Expenses		33,429		42,880		74,602		34,773
	Net Income (Loss)	$	-665,087	$	-227,673	$	-2,992,335	$	830,889
	Net Income (Loss) per Share	$	-1.81	$	0.03	$	-3.07	$	1.19

		First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
		2012		2012		2012		2012
	Total Income (Loss)	$	-188,888	$	3,964,326	$	-447,027	$	-239,442
	Total Expenses		40,087		56,904		45,188		73,129
	Expense Waivers		-17,810		-14,354		-26,872		-47,987
	Net Expenses		22,277		42,550		18,316		25,142
	Net Income (Loss)	$	-211,165	$	3,921,776	$	-465,343	$	-264,584
	Net Income (Loss) per Share	$	-1.6	$	6.78	$	-3.51	$	0.06

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Of Financial Instruments [Abstract]

Valuation of Securities Using Fair Value Hierarchy

The following table summarizes the valuation of DNO’s securities at December 31, 2013 using the fair value hierarchy:

At December 31, 2013

Total

Level I

Level II

Level III

Short-Term Investments

5,509,185

Exchange-Traded Futures Contracts

United States Contracts

-49,320

During the year ended December 31, 2013, there were no transfers between Level I and Level II.

The following table summarizes the valuation of DNO’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

4,009,494

—

Exchange-Traded Futures Contracts

United States Contracts

-735,330

—

Fair Value of Derivative Instruments

Fair Value

Statements of Financial

Derivatives not Accounted for as Hedging Instruments

Condition Location

December 31, 2013

December 31, 2012

Futures - Commodity Contracts

Assets

-49,320

-735,330

Effect of Derivative Instruments on the Condensed Statements of Operations

The Effect of Derivative Instruments on the Statements of Operations

For the year ended

December 31, 2013

December 31, 2012

December 31, 2011

Location of

Change in

Gain or

Realized

Unrealized

Realized

Unrealized

Realized

Unrealized

Derivatives not

(Loss) on

Gain or (Loss)

Accounted for as

Derivatives

on Derivatives

Hedging

Recognized

Instruments

in Income

Futures -

Realized gain (loss) on closed positions

-3,569,140

3,819,590

-1,332,380

Commodity Contracts

Change in unrealized gain (loss) on open positions

686,010

-739,490

210,020

Organization_and_Business_Addi

Organization and Business (Additional Information) (Detail) (USD $)	1 Months Ended
	Sep. 24, 2009	Sep. 30, 2009	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Feb. 29, 2012	Dec. 31, 2013	Feb. 29, 2012	Dec. 31, 2013
			Contract				Creation Baskets [Member]	Prior to July 1, 2011 [Member]	Prior to February 29, 2012 [Member]	Open Futures Contracts, Short [Member]
									Creation Baskets [Member]	United States [Member]
										NYMEX Crude Oil Futures CL November 2013 contracts, expiring October 2013 [Member]
										Contract
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]	'	'	'	'	'	'	'	'	'	'
Number of Contracts	'	'	'	'	'	'	'	'	'	104	[1]
Number of units per basket	'	'	'	'	'	'	50,000	'	100,000	'
Fee paid by Authorized Purchasers for each order placed to create one or more Creation Baskets or to redeem one or more baskets	'	'	350	'	'	'	'	1,000	'	'
Number of initially registered units on Form S-1 with the U.S. Securities and Exchange Commission	'	25,000,000	'	'	'	'	'	'	'	'
Net asset value per unit	$50	'	$34.23	$37.89	$36.16	$40.42	'	'	'	'
Number of units issued	200,000	'	'	'	'	'	'	'	'	'
Value of units issued	$10,000,000	'	'	'	'	'	'	'	'	'
Commenced investment operations date	24-Sep-09	'	'	'	'	'	'	'	'	'
Number of registered units	'	'	25,000,000	'	'	'	'	'	'	'

[1]	Collateral amounted to $616,338 on open futures contracts.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Additional Information) (Detail)	Dec. 31, 2013	Dec. 31, 2013	Feb. 29, 2012	Feb. 29, 2012
		Maximum [Member]	Redemption Baskets [Member]	Prior to February 29, 2012 [Member]
				Redemption Baskets [Member]
Significant Accounting Policies [Line Items]	'	'	'	'
Percentage Of Income Tax Examination Minimum Likelihood Of Tax Benefits Being Realized Upon Settlement	50.00%	'	'	'
Number of units per basket	'	'	50,000	100,000
Cash equivalents maturity period	'	'6 months	'	'

Fees_Paid_by_the_Fund_and_Rela1

Fees Paid by the Fund and Related Party Transactions (Additional Information) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fees Paid and Related Party Transactions [Line Items]	'	'	'
USCF Management Fee	'DNO is contractually obligated to pay USCF a fee, which is paid monthly, equal to 0.60% per annum of average daily total net assets	'	'
Percentage of average daily net assets	0.60%	'	'
Estimated directors' fees and expenses	$555,465	$540,586	$607,582
Licensing fee incurred	3,145	1,821	2,387
Estimated investor tax reporting cost	140,000	75,000	45,000
Expense Waivers	78,799	'	'
Maximum [Member]	'	'	'
Fees Paid and Related Party Transactions [Line Items]	'	'	'
Costs and expenses annual limit for reimbursement	0.15%	'	'
DNO and the Related Public Funds [Member]	'	'	'
Fees Paid and Related Party Transactions [Line Items]	'	'	'
Estimated directors' fees and expenses	3,907	1,664	1,099
Licensing Agreements [Member] \| First $1,000,000,000 of combined net assets of the funds [Member]	'	'	'
Fees Paid and Related Party Transactions [Line Items]	'	'	'
Fee percentage	0.04%	'	'
Licensing Agreements [Member] \| First $1,000,000,000 of combined net assets of the funds [Member] \| Maximum [Member]	'	'	'
Fees Paid and Related Party Transactions [Line Items]	'	'	'
Combined assets basis for determining fee percentage	1,000,000,000	'	'
Licensing Agreements [Member] \| Combined net assets above $1,000,000,000 [Member]	'	'	'
Fees Paid and Related Party Transactions [Line Items]	'	'	'
Fee percentage	0.02%	'	'
Licensing Agreements [Member] \| Combined net assets above $1,000,000,000 [Member] \| Minimum [Member]	'	'	'
Fees Paid and Related Party Transactions [Line Items]	'	'	'
Combined assets basis for determining fee percentage	$1,000,000,000	'	'
Licensing Agreements [Member] \| On and after October 20, 2011 [Member]	'	'	'
Fees Paid and Related Party Transactions [Line Items]	'	'	'
Fee percentage	0.02%	'	'
Assets basis for determining fee percentage	'on all net assets	'	'

Contracts_and_Agreements_Addit

Contracts and Agreements (Additional information) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Annual Fee for transfer agency services	$20,000	'	'
Brokerage commissions	21,444	13,770	12,335
Rebalancing Cost	18,763	12,010	11,421
Creation and Redemption Activity Costs	2,681	1,760	914
Percentage Of Average Daily Assets Net Total	0.10%	0.11%	0.12%
Rebalancing Cost Percentage	87.50%	87.22%	92.59%
Creation and Redemption Activity Percentage	12.50%	12.78%	7.41%
Maximum [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Transaction fees per transaction	15	'	'
Commissions per round-turn trade, including applicable exchange and NFA fees for Oil Futures Contracts and options on Oil Futures Contracts	8	'	'
Minimum [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Annual Fee for custody, fund accounting and fund administration services	75,000	'	'
Transaction fees per transaction	7	'	'
Commissions per round-turn trade, including applicable exchange and NFA fees for Oil Futures Contracts and options on Oil Futures Contracts	7	'	'
First 500 million of DNO's, USOF's, USNG's, US12OF's, UGA's, USHO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Fee percentage	0.06%	'	'
First 500 million of DNO's, USOF's, USNG's, US12OF's, UGA's, USHO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets [Member] \| Maximum [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Base amount for determining fee percentage	500,000,000	'	'
DNO's, USOF's, USNG's, US12OF's, UGA's, USHO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets greater than 500 million but less than 1 billion[Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Fee percentage	0.05%	'	'
DNO's, USOF's, USNG's, US12OF's, UGA's, USHO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets greater than 500 million but less than 1 billion[Member] \| Maximum [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Base amount for determining fee percentage	1,000,000,000	'	'
DNO's, USOF's, USNG's, US12OF's, UGA's, USHO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets greater than 500 million but less than 1 billion[Member] \| Minimum [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Base amount for determining fee percentage	500,000,000	'	'
DNO's, USOF's, USNG's, US12OF's, UGA's, USHO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets exceed 1 billion [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Fee percentage	0.04%	'	'
DNO's, USOF's, USNG's, US12OF's, UGA's, USHO's, US12NG's, USBO's, USCI's, CPER's, USAG's and USMI's combined net assets exceed 1 billion [Member] \| Minimum [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Base amount for determining fee percentage	1,000,000,000	'	'
Marketing Agreement [Member] \| DNObs assets up to 3 billion [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Fee percentage	0.06%	'	'
Marketing Agreement [Member] \| DNObs assets up to 3 billion [Member] \| Maximum [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Base amount for determining fee percentage	3,000,000,000	'	'
Marketing Agreement [Member] \| DNObs assets in excess of 3 billion [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Fee percentage	0.04%	'	'
Marketing Agreement [Member] \| DNObs assets in excess of 3 billion [Member] \| Minimum [Member]	'	'	'
Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items]	'	'	'
Base amount for determining fee percentage	$3,000,000,000	'	'

Financial_Instruments_OffBalan1

Financial Instruments, Off-Balance Sheet Risks and Contingencies (Additional Information) (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Carrying Amounts and Fair Values of Financial Instruments or Liabilities [Line Items]	'	'
Cash investments in money market funds	$3,509,515	$3,509,515
Deposits in domestic and foreign financial institutions	$6,845,977	$10,513,713

Financial_Highlights_Per_Unit_

Financial Highlights (Per Unit Performance Data and Other Supplemental Financial Data) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 24, 2009
Per Share Operating Performance:	'	'	'	'
Net asset value, beginning of period	$37.89	$36.16	$40.42	$50
Total income (loss)	($3.35)	$2.07	($3.92)	'
Total expenses	($0.31)	($0.34)	($0.34)	'
Net increase (decrease) in net asset value	($3.66)	$1.73	($4.26)	'
Net asset value, end of period	$34.23	$37.89	$36.16	$50
Total Return	-9.66%	4.78%	-10.54%	'
Ratios to Average Net Assets	'	'	'	'
Total income (loss)	-13.68%	25.45%	-10.86%	'
Management fees	0.60%	0.60%	0.60%	'
Total expenses excluding management fees	0.66%	1.17%	1.43%	'
Expenses waived	-0.38%	-0.88%	-1.18%	'
Net expenses excluding management fees	0.29%	0.29%	0.25%	'
Net income (loss)	-14.57%	24.56%	-11.71%	'

Quarterly_Financial_Data_Unaud2

Quarterly Financial Data (Unaudited) (Components of Quarterly Financial Data) (Detail) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quaterly Financial Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Total Income (Loss)	$865,662	($2,917,733)	($184,793)	($631,658)	($239,442)	($447,027)	$3,964,326	($188,888)	($2,868,522)	$3,088,969	($1,114,722)
Total Expenses	50,455	88,236	66,806	58,986	73,129	45,188	56,904	40,087	264,483	215,308	208,863
Expense Waivers	-15,682	-13,634	-23,926	-25,557	-47,987	-26,872	-14,354	-17,810	-78,799	-107,023	-121,023
Net Expenses	34,773	74,602	42,880	33,429	25,142	18,316	42,550	22,277	185,684	108,285	87,840
Net Income (Loss)	$830,889	($2,992,335)	($227,673)	($665,087)	($264,584)	($465,343)	$3,921,776	($211,165)	($3,054,206)	$2,980,684	($1,202,562)
Net Income (Loss) per Share	$1.19	($3.07)	$0.03	($1.81)	$0.06	($3.51)	$6.78	($1.60)	($3.66)	$1.73	($4.26)

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments (Valuation of Securities Using Fair Value Hierarchy) (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Short-Term Investments [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Securities, fair value	$5,509,185	$4,009,494
Exchange-Traded Futures Contracts [Member] \| United States [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Securities, fair value	-49,320	-735,330
Fair Value, Inputs, Level 1 [Member] \| Short-Term Investments [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Securities, fair value	5,509,185	4,009,494
Fair Value, Inputs, Level 1 [Member] \| Exchange-Traded Futures Contracts [Member] \| United States [Member]	'	'
Schedule of Trading Securities and Other Trading Assets [Line Items]	'	'
Securities, fair value	($49,320)	($735,330)

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments (Fair Value of Derivative Instruments) (Detail) (Commodity Contracts [Member], Futures [Member], Assets [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
Commodity Contracts [Member] \| Futures [Member] \| Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivatives not accounted for as hedging instruments	($49,320)	($735,330)

Fair_Value_of_Financial_Instru4

Fair Value of Financial Instruments (Effect of Derivative Instruments on Condensed Statements of Operations) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Realized Gain or (Loss) on Derivatives Recognized in Income	($3,569,140)	$3,819,590	($1,332,380)
Change in Unrealized Gain or (Loss) on Derivatives Recognized in Income	686,010	-739,490	210,020
Commodity Contracts [Member] \| Futures [Member] \| Realized gain (loss) on closed positions [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Realized Gain or (Loss) on Derivatives Recognized in Income	-3,569,140	3,819,590	-1,332,380
Commodity Contracts [Member] \| Futures [Member] \| Change in unrealized gain (loss) on open positions [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Change in Unrealized Gain or (Loss) on Derivatives Recognized in Income	$686,010	($739,490)	$210,020