XML 32 R3.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Condensed Schedule of Investments (USD $) | Jun. 30, 2014
--- | ---
Cash Equivalents [Member] |  |
% of Partners' Capital | 47.79% |
Market Values | $ 26,008,078 |
Cash Equivalents [Member] | US Treasury Securities [Member] |  |
% of Partners' Capital | 33.07% |
Market Values | 17,997,306 |
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bill,0.03%, 8/28/2014 [Member] |  |
% of Partners' Capital | 9.19% |
Principal Amount | 5,000,000 |
Market Values | 4,999,758 |
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,0.04%, 10/30/2014 |  |
% of Partners' Capital | 9.18% |
Principal Amount | 5,000,000 |
Market Values | 4,999,328 |
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,0.05%, 12/26/2014 |  |
% of Partners' Capital | 14.70% |
Principal Amount | 8,000,000 |
Market Values | 7,998,220 |
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] |  |
% of Partners' Capital | 14.72% |
Market Values | 8,010,772 |
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] | Morgan Stanley Institutional Liquidity Fund - Government Portfolio [Member] |  |
% of Partners' Capital | 6.45% |
Principal Amount | 3,510,274 |
Market Values | 3,510,274 |
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] | Wells Fargo Advantage Government Money Market Fund - Class I [Member] |  |
% of Partners' Capital | 8.27% |
Principal Amount | 4,500,498 |
Market Values | 4,500,498 |
Open Futures Contracts - Long [Member] | United States [Member] | ICE Brent Crude Oil Futures CO August 2014 contracts, expiring July 2014 [Member] |  |
Number of Contracts | 484 | [1]
Unrealized Gain On Open Commodity Contracts | $ 1,699,100 | [1]
% of Partners' Capital | 3.12% | [1]
[1] | Collateral amounted to $1,573,065 on open future contracts.

X
- Definition Percentage of Partners Capital. + References No definition available. + Details
Name: | bno_PercentageOfPartnersCapital
Namespace Prefix: | bno_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Unrealized gain (loss) on open commodity futures and cleared swap contracts. + References No definition available. + Details
Name: | bno_UnrealizedGainLossOnOpenCommodityFuturesAndClearedSwapContracts
Namespace Prefix: | bno_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Balance held at close of period in number of contracts. + 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.Column B) -URI http://asc.fasb.org/extlink&oid=34726532&loc=d3e611225-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14.Column B) -URI http://asc.fasb.org/extlink&oid=34726532&loc=d3e611322-123010 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.Column B) -URI http://asc.fasb.org/extlink&oid=34726532&loc=d3e611133-123010 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12C -Paragraph Column B -Article 12 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Paragraph Column B -Article 12 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 14 -Paragraph Column B -Article 12 + Details
Name: | us-gaap_InvestmentOwnedBalanceContracts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition For investments which are quantified by principal amount, the principle balance held at close of period. + 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.Column B) -URI http://asc.fasb.org/extlink&oid=34726532&loc=d3e611225-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14.Column B) -URI http://asc.fasb.org/extlink&oid=34726532&loc=d3e611322-123010 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.Column B) -URI http://asc.fasb.org/extlink&oid=34726532&loc=d3e611133-123010 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12C -Paragraph Column B -Article 12 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Paragraph Column B -Article 12 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 14 -Paragraph Column B -Article 12 + Details
Name: | us-gaap_InvestmentOwnedBalancePrincipalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Nominal or face amount on the investment owned. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Underlying -URI http://asc.fasb.org/extlink&oid=6527499 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 10 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6431724&loc=d3e32938-113948 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 20 -Section 10 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6438156&loc=d3e57880-113973 + Details
Name: | us-gaap_InvestmentOwnedUnderlyingFaceAmountAtMarketValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant