6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16

OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2016

Commission File Number: 001-35866

KNOT OFFSHORE PARTNERS LP

(Translation of registrant’s name into English)

2 Queen’s Cross,

Aberdeen, Aberdeenshire

AB15 4YB

United Kingdom

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ☒                    Form 40-F   ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Yes  ☐                     No  ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Yes  ☐                     No  ☒

KNOT OFFSHORE PARTNERS LP

REPORT ON FORM 6-K FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2016

Table of Contents

	Page
Unaudited Condensed Consolidated Statements of Operations for the Three and Nine Months Ended September 30, 2016 and 2015		3
Unaudited Condensed Consolidated Statements of Comprehensive Income for the Three and Nine Months Ended September 30, 2016 and 2015		4
Unaudited Condensed Consolidated Balance Sheets as of September  30, 2016 and December 31, 2015		5
Unaudited Condensed Consolidated Statements of Changes in Partners’ Capital for the Nine Months Ended September 30, 2016 and 2015		7
Unaudited Condensed Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2016 and 2015		8
Notes to Unaudited Condensed Consolidated Financial Statements		9
Management’s Discussion and Analysis of Financial Condition and Results of Operations		25
Forward-Looking Statements		38
Exhibits		40
Signature		41

THIS REPORT ON FORM 6-K IS HEREBY INCORPORATED BY REFERENCE INTO THE REGISTRATION STATEMENT ON FORM F-3 (NO. 333-195976) ORIGINALLY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 15, 2014.

2

KNOT OFFSHORE PARTNERS LP

Unaudited Condensed Consolidated Statements of Operations

For the Three and Nine Months Ended September 30, 2016 and 2015

(U.S. Dollars in thousands, except per unit amounts)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Operating revenues: (Notes 3 and 9)
Time charter and bareboat revenues	$	43,390		$	39,281		$	128,080		$	112,333
Other income		197			3			596			154
Total revenues		43,587			39,284			128,676			112,487
Operating expenses: (Note 9)
Vessel operating expenses		7,588			5,936			23,210			19,907
Depreciation		13,920			12,420			41,725			35,380
General and administrative expenses		908			1,180			3,164			3,232
Goodwill impairment charge (Note 4)		—			—			—			6,217
Total operating expenses		22,416			19,536			68,099			64,736
Operating income		21,171			19,748			60,577			47,751
Finance income (expense) (Note 9):
Interest income		6			0			9			3
Interest expense		(5,129	)		(4,322	)		(15,213	)		(12,720	)
Other finance expense		(315	)		(79	)		(916	)		(178	)
Realized and unrealized gain (loss) on derivative instruments (Note 5)		3,613			(6,470	)		(2,747	)		(11,840	)
Net gain (loss) on foreign currency transactions		13			(75	)		(104	)		(135	)
Total finance expense		(1,812	)		(10,946	)		(18,971	)		(24,870	)
Income before income taxes		19,360			8,802			41,607			22,881
Income tax expense (Note 8)		(3	)		—			(9	)		(6	)
Net income		19,357			8,802			41,598			22,875
General Partner’s interest in net income		390			164			891			428
Limited Partners’ interest in net income		18,967			8,638			40,707			22,447
Earnings per unit (Note 11):
Common unit (basic and diluted)	$	0.697		$	0.294		$	1.563		$	0.850
Subordinated unit (basic and diluted)	$	—		$	0.362		$	1.154		$	1.033
General Partner unit (basic and diluted)	$	0.697		$	0.294		$	1.594		$	0.915
Cash distributions declared and paid per unit (Note 11)	$	0.520		$	0.510		$	0.520		$	1.510

The accompanying notes are an integral part of the unaudited condensed consolidated interim financial statements.

3

KNOT OFFSHORE PARTNERS LP

Unaudited Condensed Consolidated Statements of Comprehensive Income

for the Three and Nine Months Ended September 30, 2016 and 2015

(U.S. Dollars in thousands)

	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
Net income	$	19,357	$	8,802	$	41,598	$	22,875
Other comprehensive income, net of tax		—		—		—		—
Comprehensive income		19,357		8,802		41,598		22,875

The accompanying notes are an integral part of the unaudited condensed consolidated interim financial statements.

4

KNOT OFFSHORE PARTNERS LP

Unaudited Condensed Consolidated Balance Sheets

As of September 30, 2016 and December 31, 2015

(U.S. Dollars in thousands)

	At September 30, 2016			At December 31, 2015
ASSETS
Current assets:
Cash and cash equivalents (Note 6)	$	27,382		$	23,573
Amounts due from related parties (Note 9)		69			58
Inventories		758			849
Derivative assets (Notes 5 and 6)		1,645			—
Other current assets*		1,455			1,800
Total current assets		31,309			26,280
Long-term assets:
Vessels and equipment:
Vessels		1,352,165			1,351,219
Less accumulated depreciation		(197,518	)		(158,292	)
Net property, plant, and equipment		1,154,647			1,192,927
Derivative assets (Notes 5 and 6)		—			695
Accrued income		921			—
Total assets	$	1,186,877		$	1,219,902
LIABILITIES AND PARTNERS’ EQUITY
Current liabilities:
Trade accounts payable	$	1,453		$	1,995
Accrued expenses		3,967			3,888
Current portion of long-term debt* (Notes 6 and 7)		48,877			48,535
Current portion of derivative liabilities (Notes 5 and 6)		2,621			5,138
Income taxes payable (Note 8)		21			249
Current portion of contract liabilities		1,518			1,518
Prepaid charter and deferred revenue		8,954			3,365
Amount due to related parties (Note 9)		765			848
Total current liabilities		68,176			65,536
Long-term liabilities:
Long-term debt* (Notes 6 and 7)		586,332			619,187
Derivative liabilities (Notes 5 and 6)		4,132			1,232
Contract liabilities		8,619			9,757
Deferred tax liabilities (Note 8)		957			877
Other long-term liabilities		1,427			2,543
Total liabilities		669,643			699,132
Commitments and contingencies (Note 10)
Equity:
Partners’ capital:
Common unitholders		507,045			411,317
Subordinated unitholders		—			99,158
General partner interest		10,189			10,295
Total partners’ capital		517,234			520,770
Total liabilities and equity	$	1,186,877		$	1,219,902

5

* Effective January 1, 2016, the Partnership implemented ASU 2015-03, Interest – Imputation of Interest (Subtopic 835-30), Simplifying the Presentation of Debt Issuance Costs, which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability rather than as an asset. The recognition and measurement guidance for debt issuance costs is not affected. Therefore, these costs will continue to be amortized as interest expense using the effective interest method. The new guidance is applied retrospectively for all periods presented. As of September 30, 2016 and December 31, 2015 the carrying amount of the deferred debt issuance cost was $3.3 million and $4.0 million, respectively.

The accompanying notes are an integral part of the unaudited condensed consolidated interim financial statements.

6

KNOT OFFSHORE PARTNERS LP

Unaudited Condensed Consolidated

Statements of Changes in Partners’ Capital

for the Nine Months Ended September 30, 2016 and 2015

(U.S. Dollars in thousands)

	Partners’ Capital									Accumulated Other Comprehensive Income		Total Partners’ Capital
	Common Units			Subordinated Units			General Partner
Consolidated balance at December 31, 2014		307,544			103,680			8,141			—		419,365
Net income		13,596			8,851			428			—		22,875
Other comprehensive income		—			—			—			—		—
Cash distributions		(23,399	)		(14,120	)		(742	)		—		(38,261	)
Proceeds from public offering (5,000,000 common units), net of underwriters’ discount of $4,300 (Note 13)		114,500			—			2,424					116,924
Offering cost (Note 13)		(288	)		—			(5	)				(293	)
Consolidated balance at September 30, 2015	$	411,953		$	98,411		$	10,246		$	—	$	520,610
Consolidated balance at December 31, 2015		411,317			99,158			10,295			—		520,770
Net income		35,655			5,052			891			—		41,598
Other comprehensive income		—			—			—			—		—
Cash distributions		(34,049	)		(10,088	)		(997	)		—		(45,134	)
Conversion of subordinated units to common units		94,123			(94,123	)		—			—		—
Consolidated balance at September 30, 2016	$	507,045		$	—		$	10,189		$	—	$	517,234

The accompanying notes are an integral part of the unaudited condensed consolidated interim financial statements.

7

KNOT OFFSHORE PARTNERS LP

Unaudited Condensed Consolidated Statements of Cash Flows

for the Nine Months Ended September 30, 2016 and 2015

(U.S. Dollars in thousands)

	Nine Months Ended September 30,
	2016			2015
Cash flows provided by operating activities:
Net income	$	41,598		$	22,875
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation		41,725			35,380
Amortization of contract intangibles / liabilities		(1,138	)		(1,138	)
Amortization of deferred revenue		(1,257	)		(1,436	)
Amortization of deferred debt issuance cost		883			859
Drydocking expenditure		(2,595	)		—
Goodwill impairment charge		—			6,217
Income tax expense		9			6
Income taxes paid		(241	)		(336	)
Unrealized loss (gain) on derivative instruments		(568	)		5,254
Unrealized loss (gain) on foreign currency transactions		30			18
Changes in operating assets and liabilities
Decrease (increase) in amounts due from related parties		(11	)		915
Decrease (increase) in inventories		90			248
Decrease (increase) in other current assets		344			(2,239	)
Increase (decrease) in trade accounts payable		(565	)		(554	)
Increase (decrease) in accrued expenses		79			730
Decrease (increase) in accrued revenue		(921	)		—
Increase (decrease) in prepaid revenue		5,730			(1,503	)
Increase (decrease) in amounts due to related parties		(82	)		(1,526	)
Net cash provided by operating activities		83,110			63,770
Cash flows from investing activities:
Disposals (additions) to vessel and equipment		(849	)		(1,193	)
Acquisition of Dan Sabia (net of cash acquired)		—			(36,843	)
Net cash used in investing activities		(849	)		(38,036	)
Cash flows from financing activities:
Proceeds from long-term debt		5,000			—
Repayment of long-term debt		(38,221	)		(55,439	)
Repayment of long-term debt from related parties		—			(12,000	)
Payments of debt issuance cost		(174	)		(8	)
Cash distribution		(45,134	)		(38,261	)
Proceeds from public offering, net of underwriters’ discount		—			116,924
Offering cost		—			(293	)
Net cash provided by (used in) financing activities		(78,529	)		10,923
Effect of exchange rate changes on cash		77			(206	)
Net increase in cash and cash equivalents		3,732			36,451
Cash and cash equivalents at the beginning of the period		23,573			30,746
Cash and cash equivalents at the end of the period	$	27,382		$	67,197

The accompanying notes are an integral part of the unaudited condensed consolidated interim financial statements.

8

KNOT OFFSHORE PARTNERS LP

Notes to Unaudited Condensed Consolidated Financial Statements

1) Description of Business

KNOT Offshore Partners LP (the “Partnership”) is a publicly traded Marshall Islands limited partnership initially formed for the purpose of acquiring 100% ownership interests in four shuttle tankers owned by Knutsen NYK Offshore Tankers AS (“KNOT”) in connection with the Partnership’s initial public offering of common units (the “IPO”), which was completed in April 2013.

As of September 30, 2016, the Partnership had a fleet of ten shuttle tankers, the Windsor Knutsen, the Bodil Knutsen, the Recife Knutsen, the Fortaleza Knutsen, the Carmen Knutsen, the Hilda Knutsen, the Torill Knutsen, the Dan Cisne, the Dan Sabia and the Ingrid Knutsen, each referred to as a “Vessel” and, collectively, as the “Vessels.” The Vessels operate under fixed charter contracts to charterers. The time charter for the Windsor Knutsen expires in 2017 and the charterer has six one-year extension options. The time charter for the Bodil Knutsen expires in 2019 and contains customer options for extension through 2024. The Recife Knutsen and the Fortaleza Knutsen are under bareboat charter contracts that expire in 2023. The time charter for the Carmen Knutsen expires in 2023 and contains customer options for extension through 2026. The time charters for the Hilda Knutsen and the Torill Knutsen each expire in 2018 and contain a customer option for extension through 2023. The Dan Cisne and the Dan Sabia are under bareboat charter contracts that expire in 2023 and 2024, respectively. The time charter for the Ingrid Knutsen expires in 2024 and contains customer options for extension through 2029.

2) Summary of Significant Accounting Policies

(a) Basis of Preparation

The accompanying unaudited condensed consolidated interim financial statements are prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”) for interim financial information. All intercompany balances and transactions are eliminated. The unaudited condensed consolidated financial statements do not include all the disclosures and information required for a complete set of annual financial statements; and, therefore, these unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2015, which are included in the Partnership’s Annual Report on Form 20-F (the “2015 20-F”).

Under the Partnership’s First Amended and Restated Agreement of Limited Partnership (the “Partnership Agreement”), KNOT Offshore Partners GP LLC, a wholly owned subsidiary of KNOT, and the general partner of the Partnership (the “General Partner”), has irrevocably delegated to the Partnership’s board of directors the power to oversee and direct the operations of, manage and determine the strategies and policies of the Partnership. During the period from the Partnership’s IPO in April 2013 until the time of the Partnership’s first annual general meeting (“AGM”) on June 25, 2013, the General Partner retained the sole power to appoint, remove and replace all members of the Partnership’s board of directors. From the first AGM, four of the seven board members became electable by the common unitholders and accordingly, from this date, KNOT, as the owner of the General Partner, no longer retains the power to control the Partnership’s board of directors and, hence, the Partnership. As a result, the Partnership is no longer considered to be under common control with KNOT and as a consequence, the Partnership will not account for any vessel acquisitions from KNOT after June 25, 2013 as a transfer of equity interests between entities under common control.

(b) Significant accounting policies

The accounting policies adopted in the preparation of the unaudited condensed consolidated interim financial statements are consistent with those followed in the preparation of the Partnership’s audited consolidated financial statements for the year ended December 31, 2015, as contained in the Partnership’s 2015 20-F.

(c) Accounting pronouncement not yet adopted

In February 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-02, Leases (Topic 842). The update requires an entity to recognize right-of-use assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. It also offers specific accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing and uncertainty of cash flows arising from leases. The guidance will be effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years and early adoption is permitted. The Partnership is in the process of evaluating the impact of this standard update on its consolidated financial statements and related disclosures.

9

In May 2014, the FASB and the International Accounting Standards Board (IASB) issued a comprehensive revenue recognition standard that will supersede existing revenue guidance under US GAAP and IFRS, ASU 2014-09, Revenue from Contracts with Customers, (or ASU 2014-09) for U.S. GAAP. ASU 2014-09 will require an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update creates a five-step model that requires an entity to exercise judgment when considering the terms of the contract(s) which include (i) identifying the contract(s) with the customer, (ii) identifying the separate performance obligations in the contract, (iii) determining the transaction price, (iv) allocating the transaction price to the separate performance obligations, and (v) recognizing revenue when each performance obligation is satisfied. In August 2015, FASB issued an ASU (ASU 2015-14) to defer by one year the effective dates of its new revenue recognition standard for public and non-public entities reporting under US GAAP. As a result, the standard (ASU 2014-09) will be effective for public entities for annual reporting periods beginning after December 15, 2017 (2018 for calendar-year public entities) and interim periods therein. ASU 2014-09 shall be applied retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. Early adoption is not permitted under U.S. GAAP. The Partnership is evaluating the effect of adopting this new accounting guidance.

In August 2014, FASB issued Presentation of Financial Statements – Going Concern (Subtopic 205-40), Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (ASU 2014-15). ASU 2014-15 requires management to evaluate whether there are conditions and events that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the financial statements are issued (or available to be issued when applicable) and, if so, disclose that fact. Management will be required to make this evaluation for both annual and interim reporting periods, if applicable. Management also is required to evaluate and disclose whether its plans alleviate that doubt. The standard is effective for annual periods after December 15, 2016 and interim periods within annual periods beginning after December 15, 2016. Early adoption is permitted. The Partnership does not expect the adoption of this standard to have a material impact on the consolidated financial statements.

3) Segment Information

The Partnership has not presented segment information as it considers its operations to occur in one reportable segment, the shuttle tanker market. As of September 30, 2016, the Partnership’s fleet consisted of ten vessels and operated under six time charters and four bareboat charters. As of September 30, 2015, the Partnership’s fleet consisted of nine vessels and operated under five time charters and four bareboat charters. Under the time charters and bareboat charters, the charterer, not the Partnership, controls the choice of which trading areas the applicable Vessel will serve. Accordingly, the Partnership’s management, including the chief operating decision makers, does not evaluate performance according to geographical region.

The following table presents revenues and percentage of consolidated revenues for customers that accounted for more than 10% of the Partnership’s consolidated revenues during the nine months ended September 30, 2016 and 2015. All of these customers are subsidiaries of major international oil companies, except KNOT, which was chartering the Windsor Knutsen until she was redelivered to Royal Dutch Shell (“Shell”), formerly BG Group, in October 2015.

	Three Months Ended September 30,								Nine Months Ended September 30,
(U.S. Dollars in thousands)	2016				2015				2016				2015
Fronape International Company, a subsidiary of Petrobras Transporte S.A.	$	11,368	26	%		11,368	29	%	$	33,866	27	%		29,250	26	%
Eni Trading and Shipping S.pA		11,816	27	%		11,810	30	%		35,191	27	%		35,000	31	%
Statoil ASA		5,809	13	%		5,864	15	%		16,038	13	%		17,345	15	%
Repsol Sinopec Brasil, S.A., a subsidiary of Repsol Sinopec Brasil, B.V.		4,793	11	%		5,126	13	%		14,553	11	%		15,212	14	%
Brazil Shipping I Limited, a subsidiary of Shell		5,210	13	%		—	—			15,344	12	%		—	—
Standard Marine Tønsberg, a subsidiary of ExxonMobil		4,394	10	%		—	—			13,087	10	%		—	—
Knutsen NYK Offshore Tankers AS		—	—			5,113	13	%		—	—			15,526	14	%

10

4) Goodwill Impairment Charge

During the three months ended June 30, 2015, the Partnership concluded that indicators of impairment were present due to a significant reduction in the price of the Partnership’s common units during the quarter. Consequently, the Partnership performed an interim vessel and goodwill impairment analysis as of June 30, 2015 on its fleet, concluding that there was no impairment to the vessels’ values. However, the Partnership determined that the carrying value of the goodwill exceeded its fair value. The impairment charge relates mainly to capitalized goodwill which arose in 2008 when the Partnership’s predecessor acquired the Windsor Knutsen and three other vessels then under construction, in a transaction that was then accounted for as a step transaction. As a result, a goodwill impairment charge of $6.2 million was recognized in the condensed consolidated financial statements for the three and six months ended June 30, 2015. The fair value was determined using the present value of the expected future cash flows discounted at a rate equivalent to a market participant’s weighed average cost of capital. The estimates and assumptions regarding expected future cash flows and appropriate discount rates are in part based upon existing contracts, future shuttle tanker rates, historical experience, financial forecasts and industry trends and conditions. This non-cash impairment charge, which does not affect the Partnership’s operations, cash flows, liquidity, or any of its loan covenants, reduced the Partnership’s remaining goodwill balance to zero as of June 30, 2015.

5) Derivative Instruments

The unaudited condensed consolidated interim financial statements include the results of interest rate swap contracts to manage the Partnership’s exposure related to changes in interest rates on its variable rate debt instruments and the results of foreign exchange forward contracts to manage its exposure related to changes in currency exchange rates on its operating expenses, mainly crew expenses, in currency other than U.S. Dollars and on its contract obligations. The Partnership does not apply hedge accounting for derivative instruments. The Partnership does not speculate using derivative instruments.

By using derivative financial instruments to economically hedge exposures to changes in interest rates, the Partnership exposes itself to credit risk and market risk. Derivative instruments that economically hedge exposures are used for risk management purposes, but these instruments are not designated as hedges for accounting purposes. Credit risk is the failure of the counterparty to perform under the terms of the derivative instrument. When the fair value of a derivative instrument is positive, the counterparty owes the Partnership, which creates credit risk for the Partnership. When the fair value of a derivative instrument is negative, the Partnership owes the counterparty, and, therefore, the Partnership is not exposed to the counterparty’s credit risk in those circumstances. The Partnership minimizes counterparty credit risk in derivative instruments by entering into transactions with major banking and financial institutions. The derivative instruments entered into by the Partnership do not contain credit risk-related contingent features. The Partnership has not entered into master netting agreements with the counterparties to its derivative financial instrument contracts.

Market risk is the adverse effect on the value of a derivative instrument that results from a change in interest rates, currency exchange rates or commodity prices. The market risk associated with interest rate contracts is managed by establishing and monitoring parameters that limit the types and degree of market risk that may be undertaken.

The Partnership assesses interest rate risk by monitoring changes in interest rate exposures that may adversely impact expected future cash flows and by evaluating economical hedging opportunities.

The Partnership’s variable interest rate mortgage debt obligations expose the Partnership to variability in interest payments due to changes in interest rates. The Partnership believes that it is prudent to limit the variability of a portion of its interest payments. To meet this objective, the Partnership entered into London Interbank Offered Rate (“LIBOR”)-based interest rate swap contracts to manage fluctuations in cash flows resulting from changes in the benchmark interest rate of LIBOR. These swaps change the variable rate cash flow exposure on the mortgage debt obligations to fixed cash flows. Under the terms of the interest rate swap contracts, the Partnership receives LIBOR-based variable interest rate payments and makes fixed interest rate payments, thereby creating the equivalent of fixed rate debt for the notional amount of its debt hedged.

As of September 30, 2016, the Partnership had entered into various interest swap agreements for a total notional amount of $407.7 million to hedge against the interest rate risks of its variable rate borrowings. Under the terms of the interest rate swap agreements, the Partnership receives interest based on three or six month LIBOR and pays a weighted average interest rate of 1.54%.

As of September 30, 2016 and December 31, 2015, the total notional amount of the Partnership’s outstanding interest rate swap contracts that were entered into in order to hedge outstanding or forecasted debt obligations were $407.7 million and $410.0 million, respectively. As of September 30, 2016 and December 31, 2015, the carrying amount of the interest rate swaps contracts were net liabilities of $6.8 million and $3.6 million, respectively. See Note 6 —Fair Value Measurements.

11

Changes in the fair value of interest rate swap contracts are reported in realized and unrealized gain (loss) on derivative instruments in the same period in which the related interest affects earnings.

The Partnership and its subsidiaries utilize the U.S. Dollar as their functional and reporting currency, because all of their revenues and the majority of their expenditures, including the majority of their investments in vessels and their financing transactions, are denominated in U.S. Dollars. Payment obligations in currencies other than the U.S. Dollar, and in particular operating expenses in Norwegian Kroner (NOK), expose the Partnership to variability in currency exchange rates. The Partnership believes that it is prudent to limit the variability of a portion of its currency exchange exposure. To meet this objective, the Partnership entered into foreign exchange forward contracts to manage fluctuations in cash flows resulting from changes in the exchange rates towards the U.S. Dollar. The agreements change the variable exchange rate to fixed exchange rates at agreed dates.

As of September 30, 2016 and December 31, 2015, the total contract amount in foreign currency of the Partnership’s outstanding foreign exchange forward contracts that were entered into to economically hedge outstanding future payments in currencies other than the U.S. Dollar were NOK 293.8 million and NOK 289.8 million, respectively. As of September 30, 2016 and December 31, 2015, the carrying amount of the Partnership’s foreign exchange forward contracts was an asset of $1.7 million and a liability of $2.1 million, respectively. See Note 6 —Fair Value Measurements.

The following table presents the realized and unrealized gains and losses that are recognized in earnings as net gain (loss) for derivative instruments for the three and nine months ended September 30, 2016 and 2015:

	Three Months Ended September 30,						Nine Months Ended September 30,
(US $ in thousands)	2016			2015			2016			2015
Realized (loss)
Interest rate swap contracts	$	(671	)	$	(989	)	$	(2,847	)	$	(3,348	)
Foreign exchange forward contracts		(152	)		(3,238	)		(468	)		(3,238	)
Unrealized gain (loss)
Interest rate swap contracts		2,744			(4,032	)		(3,122	)		(5,866	)
Foreign exchange forward contracts		1,692			1,789			3,690			612
Total realized and unrealized (loss) gain		3,613			(6,470	)		(2,747	)		(11,840	)

6) Fair Value Measurements

(a) Fair Value of Financial Instruments

The following table presents the carrying amounts and estimated fair values of the Partnership’s financial instruments as of September 30, 2016 and December 31, 2015. Fair value is defined as the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.

	September 30, 2016				December 31, 2015
(U.S. Dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial assets:
Cash and cash equivalents	$	27,382	$	27,382	$	23,573	$	23,573
Non-current derivative assets:
Interest rate swap contracts		—		—		695		695
Foreign exchange forward contracts		1,645		1,645		—		—
Financial liabilities:
Current derivative liabilities:
Interest rate swap contracts		2,621		2,621		3,799		3,799
Foreign exchange forward contracts		—		—		1,339		1,339
Non-current derivative liabilities:
Interest rate swap contracts		4,132		4,132		527		527
Foreign exchange forward contracts		—		—		705		705
Long-term debt, current and non-current		635,209		635,209		667,772		667,772

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The carrying amounts shown in the table above are included in the condensed consolidated balance sheets under the indicated captions. The carrying value of trade accounts receivable, trade accounts payable and receivables/payables to owners and affiliates approximate their fair value.

The fair values of the financial instruments shown in the above table as of September 30, 2016 and December 31, 2015 represent the amounts that would be received to sell those assets or that would be paid to transfer those liabilities in an orderly transaction between market participants at that date. Those fair value measurements maximize the use of observable inputs. However, in situations where there is little, if any, market activity for the asset or liability at the measurement date, the fair value measurement reflects the Partnership’s own judgment about the assumptions that market participants would use in pricing the asset or liability. Those judgments are developed by the Partnership based on the best information available in the circumstances, including expected cash flows, appropriately risk-adjusted discount rates and available observable and unobservable inputs.

The following methods and assumptions were used to estimate the fair value of each class of financial instruments:

• Cash and cash equivalents and restricted cash: The fair value of the Partnership’s cash balances approximates the carrying amounts due to the current nature of the amounts.

• Foreign exchange forward contracts: The fair value is calculated using mid-rates (excluding margins) as determined by counterparties based on available market rates as of the balance sheet date. The fair value is discounted from the value at expiration to the current value of the contracts.

• Interest rate swap contracts: The fair value of interest rate swap contracts is determined using an income approach using the following significant inputs: the term of the swap, the notional amount of the swap, discount rates interpolated based on relevant LIBOR swap curves and the rate on the fixed leg of the swap.

• Long-term debt: With respect to long-term debt measurements, the Partnership uses market interest rates and adjusts that rate for all necessary risks, including its own credit risk. In determining an appropriate spread to reflect its credit standing, the Partnership considered interest rates currently offered to KNOT for similar debt instruments of comparable maturities by KNOT’s and the Partnership’s bankers as well as other banks that regularly compete to provide financing to the Partnership.

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(b) Fair Value Hierarchy

The following table presents the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a recurring basis (including items that are required to be measured at fair value or for which fair value is required to be disclosed) as of September 30, 2016 and December 31, 2015:

			Fair Value Measurements at Reporting Date Using
(U.S. Dollars in thousands)	September 30, 2016		Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	27,382	$	27,382	$	—	$	—
Non-current derivative assets:
Interest rate swap contracts		—		—		—		—
Foreign exchange forward contracts		1,645		—		1,645		—
Financial liabilities:
Current derivative liabilities:
Interest rate swap contracts		2,621		—		2,621		—
Foreign exchange forward contracts		—		—		—		—
Non-current derivative liabilities:
Interest rate swap contracts		4,132		—		4,132		—
Long-term debt, current and non-current		635,209		—		635,209		—

			Fair Value Measurements at Reporting Date Using
(U.S. Dollars in thousands)	December 31, 2015		Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	23,573	$	23,573	$	—	$	—
Non-current derivative assets:
Interest rate swap contracts		695		—		695		—
Financial liabilities:
Current derivative liabilities:
Interest rate swap contracts		3,799		—		3,799		—
Foreign exchange forward contracts		1,339		—		1,339		—
Non-current derivative liabilities:
Interest rate swap contracts		527				527		—
Foreign exchange forward contract		705				705
Long-term debt, current and non-current		667,772		—		667,772		—

The Partnership’s accounting policy is to recognize transfers between levels of the fair value hierarchy on the date of the event or change in circumstances that caused the transfer. There were no transfers into or out of Level 1, Level 2 or Level 3 as of September 30, 2016 and December 31, 2015.

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7) Long-Term Debt

As of September 30, 2016 and December 31, 2015, the Partnership had the following debt amounts outstanding:

(U.S. Dollars in thousands)	Vessel	September 30, 2016		December 31, 2015
$220 million loan facility	Windsor Knutsen, Bodil Knutsen, Carmen Knutsen	$	184,643	$	196,429
$140 million loan facility	Fortaleza Knutsen & Recife Knutsen		120,313		126,875
$117 million loan facility	Hilda Knutsen		78,103		81,797
$117 million loan facility	Torill Knutsen		79,337		83,033
$172.5 million loan facility	Dan Cisne, Dan Sabia		105,139		109,339
$77.5 million loan facility	Ingrid Knutsen		70,934		74,217
Total long-term debt			638,469		671,690
Less: current installments			50,084		49,684
Less: unamortized deferred loan issuance costs			1,207		1,149
Current portion of long-term debt			48,877		48,535
Amounts due after one year			588,384		622,006
Less: unamortized deferred loan issuance costs			2,052		2,819
Long-term debt less current installments and unamortized deferred loan issuance costs		$	586,332	$	619,187

The Partnership’s outstanding debt of $638.5 million as of September 30, 2016 is repayable as follows:

(US $ in thousands)	Period repayment		Balloon repayment
Remainder of 2016	$	16,463	$	—
2017		50,084		—
2018		48,495		154,927
2019		28,582		237,678
2020		17,650		—
2021 and thereafter		71,650		12,940
Total	$	232,924	$	405,545

As of September 30, 2016, the interest rates on the Partnership’s loan agreements (other than tranche two of the $77.5 million loan facility) were the London Interbank Offered Rate (“LIBOR”) plus a fixed margin ranging from 2.125% to 2.5%. On the export credit loan of $55.1 million which is tranche two of the $77.5 million loan facility secured by the Ingrid Knutsen, the annual rate is 3.85% composed of a 2.5% bank facility rate plus a commission of 1.35% to the export credit guarantor. The guarantee commission of 1.35% is classified as other finance expense.

On June 30, 2016, the Partnership’s subsidiaries KNOT Shuttle Tankers 18 AS, KNOT Shuttle Tankers 17 AS and Knutsen Shuttle Tankers 13 AS, as borrowers, entered into an amended and restated senior secured credit facility (the “Amended Senior Secured Loan Facility”), which amended the Partnership’s existing $240 million senior syndicated secured loan facility secured by the shuttle tankers Bodil Knutsen, Carmen Knutsen and Windsor Knutsen. The Amended Senior Secured Loan Facility includes a new revolving credit facility tranche of $15 million, bringing the total revolving credit commitments under the facility to $35 million. The new revolving credit facility matures in June 2019, bears interest at LIBOR plus a fixed margin of 2.5% and has a commitment fee equal to 40% of the margin of the revolving facility tranche calculated on the daily undrawn portion of such tranche. The other material terms from the original $240 million facility remain unaltered, including the margin on the original $20 million revolving credit facility, which remains 2.125%.

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8) Income Taxes

Components of Current and Deferred Tax Expense

After the reorganization of the Partnership’s predecessor’s activities into the new group structure in February 2013, all profit from continuing operations in Norway is taxable within the Norwegian Tonnage Tax regime (“the tonnage tax regime”). The consequence of the reorganization was a one-time entrance tax into the tonnage tax regime due to the Partnership’s acquisition of the shares in the subsidiary that owns the Fortaleza Knutsen and the Recife Knutsen. Under the tonnage tax regime, the tax is based on the tonnage of the vessel and operating income is tax free. The net financial income and expense remains taxable as ordinary income tax for entities subject to the tonnage tax regime. For the portion of activities subject to the tonnage tax regime, tonnage taxes are classified as vessel operating expenses while the current and deferred taxes arising on net financial income and expense are reflected as income tax expense in the consolidated financial statements.

The total amount of the entrance tax was estimated to be approximately $3.0 million, which was recognized in the three months ended March 31, 2013. The entrance tax is payable over several years and is calculated by multiplying the tax rate by the declining balance of the gain, which will decline by 20% each year. The amount payable will be affected by the change in tax rate which was reduced to 25% in 2016 from 27% in 2014 and from 28% in 2013 and the fluctuation in currency rates. Approximately $0.2 and $0.1 million of the entrance tax was paid during the first and second quarter of 2015, respectively and $0.2 million was paid during the first quarter of 2016. UK income tax is presented as income taxes payable, while $1.0 million is presented as non-current deferred taxes payable. Profit and loss from continuing operation before income taxes was taxable to Norway and significant components of current and deferred income tax expense attributable to income from continuing operations for the three and nine months ended September 30, 2016 and 2015 as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
(US $ in thousands)	2016			2015			2016			2015
Income before income taxes	$	19,360		$	8,802		$	41,607		$	22,881
Income tax (expense)		(3	)		—			(9	)		(6	)
Effective tax rate		0	%		0	%		0	%		0	%

The Partnership records a valuation allowance for deferred tax assets when it is more likely than not that some of or all of the benefit from the deferred tax assets will not be realized. In assessing the realizability of deferred tax assets, which relates to financial loss carry forwards and other deferred tax assets within the tonnage tax regime, the Partnership considers whether it is more-likely-than-not that some portion or all of the deferred tax assets will not be realized taking into account all the positive and negative evidence available. As of September 30, 2016 and December 31, 2015 there are no deferred tax assets recognized.

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9) Related Party Transactions

(a) Related Parties

Net expenses (income) from related parties included in the unaudited condensed consolidated statements of operations for the three and nine months ended September 30, 2016 and 2015 are as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(US $ in thousands)	2016		2015		2016		2015
Statements of operations:
Time charter and bareboat revenues:
Charter revenues from KNOT (1)	$	—	$	5,113	$	—	$	15,526
Other income:
Guarantee income from KNOT to vessel(2)		196		—		577		—
Operating expenses:
Technical and operational management fee from KNOT Management to Vessels (3)		733		580		2,198		1,743
General and administrative expenses:
Administration fee from KNOT Management (4)		327		306		960		700
Administration fee from KOAS (4)		95		97		286		267
Administration fee from KOAS UK (4)		35		38		106		112
Administration and management fee from KNOT (5)		50		46		152		118
Finance income (expense):
Interest expense charged from KNOT (6)		—		—		—		(268	)
Total		1,044		4,046		3,125		12,318

(US $ in thousands)	At September 30, 2016		At December 31, 2015
Balance Sheet:
Vessels:
Drydocking supervision fee from KNOT (7)	$	38	$	—
Drydocking supervision fee from KOAS (7)		16		—
Total		54		—

(1) Charter revenues from KNOT: Pursuant to the Omnibus Agreement KNOT entered into with the Partnership at the time of the IPO, KNOT agreed to guarantee the payments of the hire rate under the initial charters of each of the Bodil Knutsen and the Windsor Knutsen for a period of five years from the closing date of the IPO. Shell, the charterer of the Windsor Knutsen , did not exercise its option to extend the Windsor Knutsen time charter after the expiration of its initial term, and on July 29, 2014 KNOT and the Partnership entered into a time charter for the vessel at a rate of hire that would have been in effect during the option period under the previous Shell time charter. This charter was effective until the Windsor Knutsen commenced in October 2015 on a new Shell time charter. See Note 9(b)—Related Party Transactions—Guarantees and Indemnifications.

(2) Guarantee income from KNOT: Pursuant to the Omnibus Agreement, KNOT agreed to guarantee the payments of the hire rate under the initial charter of the Bodil Knutsen and the Windsor Knutsen for a period of five years from the closing date of the IPO. In October 2015, the Windsor Knutsen commenced on a new Shell time charter with a hire rate below the hire rate in the initial charter. The difference between the new hire rate and the initial rate is paid by KNOT. See Note 9(b)—Related Party Transactions—Guarantees and Indemnifications.

(3) Technical and operational management fee from KNOT Management to Vessels: KNOT Management AS (“KNOT Management”) provides technical and operational management of the vessels on time charter including crewing, purchasing, maintenance and other operational services. In addition, there is also a charge for 24-hour emergency response services provided by KNOT for all vessels managed by KNOT.

(4) Administration fee from KNOT Management and Knutsen OAS Shipping AS (“KOAS”) and Knutsen OAS (UK) Ltd. (“KOAS UK”): Administration costs include the compensation and benefits of KNOT Management’s management and administrative staff as well as other general and administration expenses. Some benefits are also provided by KOAS and KOAS UK. Net administration costs are total administration cost plus a 5% margin, reduced for the total fees for services delivered by the

17

administration staffs and the estimated shareholder costs for KNOT that have not been allocated. As such, the level of net administration costs as a basis for the allocation can vary from year to year based on the administration and financing services offered by KNOT to all the vessels in its fleet each year. KNOT Management also charges each subsidiaries a fixed annual fee for the preparation of the statutory financial statement.

(5) Administration and management fee from KNOT: For bareboat charters, the shipowner is not responsible for providing crewing or other operational services and the customer is responsible for all vessel operating expenses and voyage expenses. However, each of the vessels under bareboat charters are subject to management and administration agreements with either KNOT Management or KNOT Management Denmark, pursuant to which these companies provide general monitoring services for the vessels in exchange for an annual fee.

(6) Interest expense charged from KNOT: KNOT invoiced interest (expense) income for any outstanding payables to (receivable from) owners and affiliates to the vessel-owning subsidiaries.

(7) Drydocking supervision fee from KNOT and KOAS: KNOT and KOAS provide supervision and hire out service personnel during drydocking of the vessels. The fee is calculated as a daily fixed fee.

(b) Guarantees and Indemnifications

Pursuant to the Omnibus Agreement, KNOT agreed to guarantee the payments of the hire rate under the initial charters of each of the Bodil Knutsen and the Windsor Knutsen for a period of five years from the closing date of the IPO.

In April 2014, the Partnership was notified that Shell would not exercise its option to extend the Windsor Knutsen time charter after the expiration of its initial term. The vessel was re-delivered on July 28, 2014. In order to comply with its obligations under the Omnibus Agreement, on July 29, 2014, KNOT and the Partnership entered into a time charter for the vessel at a rate of hire that would have been in effect during the option period under the previous Shell time charter. This charter was effective until the new Shell time charter commenced in October, 2015.

Under the Omnibus Agreement, KNOT has agreed to indemnify the Partnership until April 15, 2018, against certain environmental and toxic tort liabilities with respect to certain assets that KNOT contributed or sold to the Partnership to the extent arising prior to the time they were contributed or sold. However, claims are subject to a deductible of $0.5 million and an aggregate cap of $5 million.

In addition, pursuant to the Omnibus Agreement, KNOT agreed to indemnify the Partnership for any defects in title to certain assets contributed or sold to the Partnership and any failure to obtain, prior to April 15, 2013, certain consents and permits necessary to conduct the Partnership’s business, which liabilities arise within three years after the closing of the IPO on April 15, 2013.

(c) Transactions with Management and Directors

See Note 9(a) for a discussion of the allocation principles for KNOT’s administrative costs, including management and administrative staff, included in the consolidated statements of operations.

(d) Amounts Due from (to) Related Parties

Balances with related parties consisted of the following:

(U.S. Dollars in thousands)	At September 30,  2016		At December 31,  2015
Balance Sheets:
Trading balances due from KOAS	$	28	$	10
Trading balances due from KNOT and affiliates		41		48
Amount due from related parties	$	69	$	58
Trading balances due to KOAS	$	586	$	448
Trading balances due to KNOT and affiliates		179		400
Amount due to related parties	$	765	$	848

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Amounts due from (to) related parties are unsecured and intended to be settled in the ordinary course of business. They primarily relate to vessel management and other fees due to KNOT and KOAS.

(e) Trade accounts payables

Trade accounts payables to related parties are included in total trade accounts payables in the balance sheet. The balances to related parties consisted of the following:

(U.S. Dollars in thousands)	At September 30, 2016		At December 31, 2015
Balance Sheets:
Trading balances due to KOAS	$	402	$	651
Trading balances due to KNOT and affiliates		355		360
Trade accounts payables to related parties	$	757	$	1,011

(f) Acquisitions from KNOT

On June 30, 2015, the Partnership acquired KNOT’s 100% interest in KNOT Shuttle Tankers 21 AS, the company that owns and operates the Dan Sabia. This acquisition was accounted for as an acquisition of a business.

On October 15, 2015, the Partnership acquired KNOT’s 100% interest in Knutsen NYK Shuttle Tankers 16 AS, the company that owns and operates the Ingrid Knutsen. This acquisition was accounted for as an acquisition of a business.

The board of directors of the Partnership (the “Board”) and the conflicts committee of the Board (the “Conflicts Committee”) approved the purchase price for each transaction described above. The Conflicts Committee retained a financial advisor to assist with its evaluation of each of the transactions. See Note—12 Business Acquisitions.

10) Commitments and Contingencies

Assets Pledged

As of September 30, 2016 and December 31, 2015, Vessels with a book value of $1,155 million and $1,193 million, respectively, were pledged as security held as guarantee for the Partnership’s long-term debt and interest rate swap obligations. See Note 5 —Derivative Instruments and Note 7 —Long-Term Debt.

Claims and Legal Proceedings

From time to time, the Partnership is involved in various claims and legal actions arising in the ordinary course of business. In the opinion of management, the ultimate disposition of these matters will not have a material adverse effect on the consolidated financial position, results of operations or cash flows.

Insurance

The Partnership maintains insurance on all the Vessels to insure against marine and war risks, which include damage to or total loss of the Vessels, subject to deductible amounts that average $0.150 million per Vessel, and loss of hire.

Under the loss of hire policies, the insurer will pay a compensation for the lost hire rate agreed in respect of each Vessel for each day, in excess of 14 deductible days, for the time that the Vessel is out of service as a result of damage, for a maximum of 180 days. In addition, the Partnership maintains protection and indemnity insurance, which covers third-party legal liabilities arising in connection with the Vessels’ activities, including, among other things, the injury or death of third-party persons, loss or damage to cargo, claims arising from collisions with other vessels and other damage to other third-party property, including pollution arising from oil or other substances. This insurance is unlimited, except for pollution, which is limited to $1 billion per vessel per incident. The protection and indemnity insurance is maintained through a protection and indemnity association, and as a member of the association, the Partnership may be required to pay amounts above budgeted premiums if the member claims exceed association reserves, subject to certain reinsured amounts. If the Partnership experiences multiple claims each with individual deductibles, losses due to risks that are not insured or claims for insured risks that are not paid, it could have a material adverse effect on the Partnership’s results of operations and financial condition.

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11) Earnings per Unit and Cash Distributions

The calculations of basic and diluted earnings per unit (1) are presented below:

(US $ in thousands, except per unit data)	Three   Months Ended    September 30, 2016			Three   Months Ended    September 30, 2015			Nine   Months Ended    September 30, 2016			Nine   Months Ended    September 30, 2015
Net income attributable to the partners of KNOT Offshore Partners LP	$	19,357		$	8,802		$	41,598		$	22,875
Less: Distributions paid (2)		15,027			15,110			45,149			41,910
Under (over) distributed earnings		(4,330	)		(6,308	)		(3,551	)		(19,035	)
Under (over) distributed earnings attributable to:
Common unitholders (3)		(4,243	)		(4,247	)		(3,480	)		(12,816	)
Subordinated unitholders (3)		—			(1,935	)		—			(5,838	)
General Partner		(87	)		(126	)		(72	)		(381	)
Weighted average units outstanding (basic and diluted) (in thousands):
Common unitholders		27,194			18,807			22,817			16,005
Subordinated unitholders		—			8,568			4,377			8,568
General Partner		559			559			559			467
Earnings per unit (basic and diluted):
Common unitholders	$	0.697		$	0.294		$	1.563		$	0.850
Subordinated unitholders (4)		—			0.362			1.154			1.033
General Partner		0. 697			0.294			1.594			0.915
Cash distributions declared and paid in the period per unit (5)		0.520			0.510			1.560			1.510
Subsequent event: Cash distributions declared and paid per unit relating to the period (6)		0.520			0.520			0.520			0.520

(1) Earnings per unit have been calculated in accordance with the cash distribution provisions set forth in the Partnership’s Partnership Agreement.

(2) This refers to distributions made or to be made in relation to the period irrespective of the declaration and payment dates and based on the number of units outstanding at the record date. This includes cash distributions to the IDR holder (KNOT) for the three months ended September 30, 2016 and 2015 of $0.6 million and of $0.6 million, respectively, and for the nine months ended September 30, 2016 and 2015 of $1.8 million and of $1.5 million, respectively.

(3) On May 18, 2016 all subordinated units converted in to common units on a one-for-one basis.

(4) This includes the net income attributable to the IDR holder. The IDRs generally may not be transferred by KNOT until March 31, 2018. The net income attributable to IDRs for the three months ended September 30, 2016 and 2015 was $0.6 million and $0.6 million, respectively, and for the nine months ended September 30, 2016 and 2015 was $1.8 million and $1.5 million, respectively.

(5) Refers to cash distributions declared and paid during the period.

(6) Refers to cash distributions declared and paid subsequent to the period end.

As of September 30, 2016, 66.8% of the Partnership’s total number of units outstanding representing limited partner interests were held by the public (in the form of 18,536,226 common units, representing 68.2% of the Partnership’s common units) and 30.9% of such units were held by KNOT (in the form of 8,567,500 common units, representing 31.5% of the Partnership’s common units). In addition, KNOT, through its ownership of the General Partner, held the 2.01% general partner interest (in the form of 558,674 general partner units) and a 0.3% limited partner interest (in the form of 90,368 common units).

Earnings per unit is determined by dividing net income, after deducting the distribution paid or to be made in relation to the period, by the weighted-average number of units outstanding during the applicable period. The General Partner’s, common unitholders’ and subordinated unitholders’ interest in net income are calculated as if all net income was distributed according to the terms of the Partnership Agreement, regardless of whether those earnings would or could be distributed. The Partnership Agreement does not provide for the distribution of net income. Rather, it provides for the distribution of available cash, which is a contractually defined term that generally means all cash on hand at the end of each quarter less the amount of cash reserves established by the Board to provide for the proper conduct of the Partnership’s business, including reserves for maintenance and replacement capital expenditures and anticipated credit needs and capital requirements. In addition, KNOT, as the initial holder of all IDRs, has the right,

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at the time when there are no subordinated units outstanding and it has received incentive distributions at the highest level to which it is entitled (48.0% for each of the prior four consecutive fiscal quarters), to reset the initial cash target distribution levels at higher levels based on the distribution at the time of the exercise of the reset election. Unlike available cash, net income is affected by non-cash items, such as depreciation and amortization, unrealized gains and losses on derivative instruments and unrealized foreign currency gains and losses.

For a description of the provisions of the Partnership Agreement relating to cash distributions, please see Note 21 in the Partnership’s audited consolidated financial statements contained in the 2015 20-F.

12) Business Acquisitions

In June 2015 and October 2015, the Partnership acquired from KNOT equity interests in certain subsidiaries which own and operate the Dan Sabia and the Ingrid Knutsen.

The Board and the Conflicts Committee approved the purchase price for each transaction. The Conflicts Committee retained a financial advisor to assist with its evaluation of each of the transactions. The details of each transaction are as follows:

(US $ in thousands)	Final Ingrid Knutsen October 15, 2015			Final Dan Sabia June 15, 2015
Purchase consideration (1)	$	12,863		$	41,186
Less: Fair value of net assets acquired:
Vessel and equipment (2)		115,000			103,389
Cash		4,744			4,343
Inventories		144			—
Others current assets		188			25
Amounts due from related parties		1			935
Long-term debt		(84,275	)		(64,470	)
Long-term debt from related parties		(20,253	)		—
Derivatives liabilities		—			(802	)
Trade accounts payable		(94	)		(4	)
Accrued expenses		(1,555	)		(335	)
Prepaid charter and deferred revenue		(762	)		(442	)
Amounts due to related parties		(275	)		(1,453	)
Sub total		12,863			41,186
Difference between the purchase price and fair value of net assets acquired	$	—		$	—
Goodwill		—			—
Difference between the purchase price and allocated values	$	—		$	—

(1) The purchase price is comprised of the following:

(US $ in thousands)	Final Ingrid Knutsen October 15, 2015		Final Dan Sabia June 15, 2015
Cash consideration paid to KNOT	$	10,472	$	38,531
Purchase price adjustments		2,391		2,655
Total purchase consideration	$	12,863	$	41,186

(2) Vessels and equipment includes allocation to dry docking for the Ingrid Knutsen of $1,263 and for the Dan Sabia of $389.

Dan Sabia

On June 15, 2015, the Partnership’s wholly owned subsidiary, KNOT Shuttle Tankers AS, acquired KNOT’s 100% interest in KNOT Shuttle Tankers 21 AS, the company that owns and operates the Dan Sabia. The purchase price was $103.0 million less assumed bank debt of $64.5 million and other purchase price adjustments of $2.7 million. The cash portion of the purchase price was financed with the proceeds from the Partnership’s public offering of 5,000,000 common units which closed on June 2, 2015. See Note

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13 – Equity Offerings. The Partnership accounted for this acquisition as an acquisition of a business. The purchase price of the acquisition has been allocated to the identifiable assets acquired. The allocation of the purchase price to acquired identifiable assets was based on their fair values at the date of acquisition.

Revenue and profit contributions

The Dan Sabia business contributed revenues of $2.9 million and net income of $1.5 million to the Partnership for the period from June 15, 2015 to September 30, 2015.

The table below shows comparative summarized consolidated pro forma financial information for the Partnership for the nine months ended September 30, 2015, giving effect to the Partnership’s acquisition and financing of the Dan Sabia as if this acquisition had taken place on January 1, 2015.

(US $ in thousands)	Nine Months Ended      September 30, 2015
Revenue	$	116,984
Net income		23,840

Included in the pro forma adjustments are depreciation related to the purchase price allocation performed on the acquired identifiable assets as if the acquisitions had taken place on January 1, 2015. In addition, the pro forma adjustments include finance expenses related to the increased borrowings as if the acquisitions had taken place on January 1, 2015.

Ingrid Knutsen

On October 15, 2015, the Partnership’s wholly owned subsidiary, KNOT Shuttle Tankers AS, acquired KNOT’s 100% interest in Knutsen NYK Shuttle Tankers 16 AS, the company that owns and operates the Ingrid Knutsen. The purchase price was $115.0 million, less assumed bank debt of $104.5 million plus other purchase price adjustments of $2.4 million. The Partnership accounted for this acquisition as an acquisition of a business. The purchase price of the acquisition has been allocated to the identifiable assets acquired. The allocation of the purchase price to acquired identifiable assets was based on their fair values at the date of acquisition.

13) Equity Offerings

(US $ in thousands)	June 2015 Offering
Gross proceeds received (1)	$	121,224
Less: Underwriters’ discount		4,300
Less: Offering expenses		293
Net proceeds received		116,631

(1) Includes General Partner’s 2% proportional capital contribution.

On June 2, 2015, the Partnership sold 5,000,000 common units, representing limited partner interests, in an underwritten public offering (the “June 2015 Offering”). In connection with the June 2015 Offering, the General Partner contributed a total of $2.4 million in order to maintain its 2% general partner interest in the Partnership. The Partnership’s total net proceeds from the June 2015 Offering and the related General Partner’s contribution were $116.6 million.

The Partnership used the net proceeds from the June 2015 Offering to fund the cash portion of the purchase price of the Dan Sabia and to repay debt and for general partnership purposes.

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14) Unit Activity

The following table shows the movement in the number of common units, subordinated units and general partner units from December 31, 2014 until September 30, 2016.

(in units)	Common Units			Subordinated Units			General Partner Units
December 31, 2014		13,807,500			8,567,500			456,633
June 2015		5,000,000			—			102,041
Repurchase program		(180,906	)		—			—
December 31, 2015		18,626,594			8,567,500			558,674
Subordinated units converted to common units		8,567,500			(8,567,500	)		—
September 30, 2016		27,194,094			—			558,674

On August 12, 2015, the Board authorized a program for the Partnership to repurchase up to 666,667 of its common units. The board of directors of the General Partner concurrently authorized the General Partner to purchase up to 333,333 common units of the Partnership. On August 10, 2016, the Board and the board of directors of the General Partner authorized an extension of the common unit purchase program to August 31, 2017. As of December 31, 2015, the Partnership and the General Partner had purchased 180,906 and 90,368 common units, respectively, pursuant to the program at an average purchase price of $12.71 per unit. No additional common units have been purchased by the Partnership or the General Partner in 2016. The Partnership and the General Partner may therefore purchase up to an additional 485,761 and 242,965 common units, respectively, under the extended program.

All purchases are made pursuant to a single program and are allocated approximately two-thirds to the Partnership and one-third to the General Partner. There is no obligation to purchase any specific number of common units and the program may be modified, suspended, extended or terminated at any time. Common units repurchased by the Partnership under the program have been cancelled.

The subordination period for the 8,567,500 subordinated units ended on May 18, 2016. All of the subordinated units, which were owned by KNOT, converted to common units on a one-for-one basis.

15) Subsequent Events

The Partnership has evaluated subsequent events from the balance sheet date through January 4, 2017, the date at which the unaudited condensed consolidated interim financial statements were available to be issued, and determined that there are no other items to disclose, except as follows:

On November 14, 2016, the Partnership paid a quarterly cash distribution of $0.52 per unit with respect to the quarter ended September 30, 2016. The total amount of the distribution was $15.0 million.

On December 1, 2016 the Partnership’s wholly owned subsidiary, KNOT Shuttle Tankers AS, acquired 100% of the shares of Knutsen Shuttle Tankers 19 AS (“KNOT 19”), the company that owns the shuttle tanker Raquel Knutsen, from KNOT for a purchase price of $116.5 million less $103.5 million of outstanding indebtedness related to the vessel plus approximately $7.3 million of post-closing adjustments for working capital, interest rate swaps, certain intercompany balances and approximately $1.1 million of capitalized fees related to the financing of the vessel. On the closing of the Acquisition, KNOT 19 repaid approximately $29.0 million of this indebtedness, leaving an aggregate of approximately $74.5 million of debt outstanding under the secured credit facility related to the vessel (the “Raquel Facility”). The Raquel Facility is repayable in quarterly installments with a final balloon payment of $30.5 million due at maturity in March 2025. The Raquel Facility bears interest at an annual rate equal to LIBOR plus a margin of 2.0%.

The purchase price was settled by way of seller’s credit (the “Seller’s Credit”) in the amount of approximately $13.0 million. In connection with the Acquisition, KNOT provided to KNOT Shuttle Tankers AS a loan in the amount of approximately $12.0 million (the “Seller’s Loan”). The Seller’s Credit and the Seller’s Loan are non-amortizing, mature in five years and have an annual interest rate equal to LIBOR plus a margin of 4.5%.

The Raquel Knutsen was delivered in March 2015 and is operating in Brazil under a ten-year time charter with Repsol Sinopec Brasil, B.V., which will expire in the second quarter of 2025. The charterer has options to extend the charter for one three-year period and one two-year period.

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The Partnership has accounted for the acquisition of the Raquel Knutsen as an acquisition of a business. The purchase price of the acquisition has been allocated to the identifiable assets acquired. The Partnership is in the process of finalizing the accounting for the acquisition and amounts shown below are provisional. Additional business combination disclosures will be presented in the Partnership’s Form 20-F for the year ending December 31, 2016. The allocation of the purchase price to acquired identifiable assets was based on their estimated fair values at the date of acquisition. No goodwill was identified as part of the provisional purchase price allocation. The provisional fair values allocated to each class of identifiable assets of Knutsen Shuttle Tankers 19 AS and the difference between the purchase price and net assets acquired was calculated as follows:

(US $ in thousands)			December 1, 2016
Purchase consideration (1)			$	20,252
Less: Fair value of net assets acquired:
Vessel and equipment	116,500
Long-term debt	(103,519	)
Post-closing adjustments	7,271
Sub total				20,252
Difference between the purchase price and fair value of net assets acquired				—

(1) This includes the purchase consideration for the vessel less the assumed bank debt plus post-closing adjustments for working capital, interest rate swaps, certain intercompany balances and capitalized fees related to the financing of the vessel.

On December 6, 2016, the Partnership entered into a Series A Preferred Unit Purchase Agreement to issue and sell in a private placement $50 million of Series A Convertible Preferred Units (the “Preferred Units”) at a price of $24.00 per unit (the “Issue Price”), resulting in approximately 2,083,333 Preferred Units, representing limited partner interests in the Partnership, expected to be outstanding as of the closing date (the “Closing Date”) of the private placement. The Preferred Units will be perpetual and will pay cumulative, quarterly distributions in arrears at an annual rate of 8.0% of the Issue Price, on or prior to the date of payment of distributions on the Partnership’s common units. The Partnership has the option to issue and sell on the Closing Date up to an additional $49 million of Preferred Units to other purchasers at the Issue Price. The transaction is subject to customary closing conditions and is expected to close in January 2017. Assuming the Partnership issues $50 million of Preferred Units, the net proceeds, after deducting estimated fees and expenses, are expected to be approximately $48.5 million. The Partnership expects to use the net proceeds for general partnership purposes, which may include acquisitions, capital expenditures or the repayment of indebtedness.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF

FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Unless the context otherwise requires, references in this report to the “Predecessor,” the “Partnership,” “we,” “our,” “us” or like terms, when used in a historical context (periods prior to April 15, 2013), refer to our predecessor for accounting purposes. References when used in the present tense or prospectively (after April 15, 2013), refer to KNOT Offshore Partners LP and its subsidiaries, also referred to as the “Partnership” or “we.” Those statements in this section that are not historical in nature should be deemed forward-looking statements that are inherently uncertain. See “Forward-Looking Statements” on page 38 for a discussion of the factors that could cause actual results to differ materially from those projected in these statements.

This section should be read in conjunction with our unaudited condensed consolidated financial statements for the interim periods presented elsewhere in this report, as well as our historical consolidated financial statements and notes thereto included in our Annual Report on Form 20-F for the year ended December 31,2015 (the “2015 20-F”). Under our Partnership Agreement, KNOT Offshore Partners GP LLC, the general partner of the Partnership (the “General Partner”), has irrevocably delegated to the Partnership’s board of directors the power to oversee and direct the operations of, and to manage and determine the strategies and policies of, the Partnership. During the period from the Partnership’s initial public offering (“IPO”) in April 2013 until the time of the Partnership’s first annual general meeting (“AGM”) on June 25, 2013, the General Partner retained the sole power to appoint, remove and replace all members of the Partnership’s board of directors. From the first AGM, four of the seven board members became electable by the common unitholders and accordingly, from this date, the General Partner no longer retains the power to control the Partnership’s board of directors and, hence, the Partnership. As a result, the Partnership is no longer considered to be under common control with Knutsen NYK Offshore Tankers AS (“KNOT”) and as a consequence, the Partnership will not account for any vessel acquisitions from KNOT as transfer of a business between entities under common control.

General

We are a limited partnership formed to own, operate and acquire offshore shuttle tankers under long-term charters, which we define as charters of five years or more. Our fleet of shuttle tankers has been contributed to us by KNOT or purchased by us from KNOT. KNOT is jointly owned by TS Shipping Invest AS (“TSSI”) and Nippon Yusen Kaisha (“NYK”). TSSI is controlled by our Chairman and is a private Norwegian company with ownership interests in shuttle tankers, LNG tankers and product/chemical tankers. NYK is a Japanese public company with a fleet of approximately 800 vessels, including bulk carriers, containerships, tankers and specialized vessels.

As of September 30, 2016, we had a modern fleet of ten shuttle tankers that operate under long-term charters with major oil and gas companies engaged in offshore production. We intend to operate our vessels under long-term charters with stable cash flows and to grow our position in the shuttle tanker market through acquisitions from KNOT and third parties. Pursuant to the Omnibus Agreement we have entered into with KNOT in connection with the IPO (the “Omnibus Agreement”), we have the right to purchase from KNOT any shuttle tankers operating under charters of five or more years. This right will continue throughout the entire term of the Omnibus Agreement.

Recent Developments

Series A Convertible Preferred Units

On December 6, 2016, the Partnership entered into a Series A Preferred Unit Purchase Agreement to issue and sell in a private placement $50 million of Series A Convertible Preferred Units (the “Preferred Units”) at a price of $24.00 per unit (the “Issue Price”), resulting in approximately 2,083,333 Preferred Units, representing limited partner interests in the Partnership, expected to be outstanding as of the closing date (the “Closing Date”) of the private placement. The Preferred Units will be perpetual and will pay cumulative, quarterly distributions in arrears at an annual rate of 8.0% of the Issue Price, on or prior to the date of payment of distributions on the Partnership’s common units. The Partnership has the option to issue and sell on the Closing Date up to an additional $49 million of Preferred Units to other purchasers at the Issue Price. The transaction is subject to customary closing conditions and is expected to close in January 2017. Assuming the Partnership issues $50 million of Preferred Units, the net proceeds, after deducting estimated fees and expenses, are expected to be approximately $48.5 million. The Partnership expects to use the net proceeds for general partnership purposes, which may include acquisitions, capital expenditures or the repayment of indebtedness.

Raquel Knutsen Acquisition

On December 1, 2016 the Partnership’s wholly owned subsidiary, KNOT Shuttle Tankers AS, acquired Knutsen Shuttle Tankers 19 AS (“KNOT 19”), the company that owns the shuttle tanker Raquel Knutsen, from KNOT for a purchase price of $116.5 million less

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$103.5 million of outstanding indebtedness related to the vessel plus approximately $7.3 million of post-closing adjustments for working capital, interest rate swaps, certain intercompany balances and approximately $1.1 million of capitalized fees related to the financing of the vessel. On the closing of the Acquisition, KNOT 19 repaid approximately $29.0 million of this indebtedness, leaving an aggregate of approximately $74.5 million of debt outstanding under the secured credit facility related to the vessel (the “Raquel Facility”). The Raquel Facility is repayable in quarterly installments with a final balloon payment of $30.5 million due at maturity in March 2025. The Raquel Facility bears interest at an annual rate equal to LIBOR plus a margin of 2.0%.

The purchase price was settled by way of seller’s credit (the “Seller’s Credit”) in the amount of approximately $13.0 million. In connection with the Acquisition, KNOT provided to KNOT Shuttle Tankers AS a loan in the amount of approximately $12.0 million (the “Seller’s Loan”). The Seller’s Credit and the Seller’s Loan are non-amortizing, mature in five years and have an annual interest rate equal to LIBOR plus a margin of 4.5%.

The Raquel Knutsen was delivered in March 2015 and is operating in Brazil under a ten-year time charter with Repsol Sinopec Brasil, B.V., which will expire in the second quarter of 2025. The charterer has options to extend the charter for one three-year period and one two-year period.

Conversion of Subordinated Units

The subordination period for the 8,567,500 subordinated units ended on May 18, 2016. All of the subordinated units, which were owned by KNOT, converted to common units on a one-for-one basis.

Cash Distributions

On August 15, 2016, we paid a quarterly cash distribution of $0.52 per unit with respect to the quarter ended June 30, 2016. This cash distribution amounted to $15.0 million

On November 14, 2016, we paid a quarterly cash distribution of $0.52 per unit with respect to the quarter ended September 30, 2016. This cash distribution amounted to $15.0 million

Annual Meeting

On August 10, 2016, we held our 2016 annual meeting of limited partners at which Simon Bird was elected as a Class III director of the Partnership whose term will expire at the 2020 annual meeting of limited partners.

Common Unit Purchase Program

On August 10, 2016, the boards of directors of the Partnership and the General Partner each authorized an extension of the common unit purchase program. Originally approved on August 12, 2015, the program authorized the Partnership to repurchase up to 666,667 of its common units and the General Partner to purchase up to 333,333 common units of the Partnership. The program was originally scheduled to expire on August 31, 2016, and the extended program will conclude on August 31, 2017. As of December 31, 2015, the Partnership and the General Partner had purchased 180,906 and 90,368 common units, respectively, pursuant to the program at an average purchase price of $12.71 per unit. No additional common units have been purchased by the Partnership or the General Partner in 2016. The Partnership and the General Partner may therefore purchase up to an additional 485,761 and 242,965 common units, respectively, under the extended program.

Extension of Bodil Knutsen Charter

On September 13, 2016, Statoil ASA exercised its option to extend the time charter of the vessel Bodil Knutsen for two additional years in accordance with the existing time charter, thereby extending the firm contract period for the time charter from May 2017 to May 2019. The Partnership also granted five additional one-year options to Statoil ASA to extend the time charter.

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Results of Operations

Three Months Ended September 30, 2016 Compared with the Three Months Ended September 30, 2015

	Three Months Ended September 30,
(US $ in thousands)	2016			2015			Change			% Change
Time charter and bareboat revenues	$	43,390		$	39,281		$	4,109			10	%
Other income		197			3			194			6,467	%
Vessel operating expenses		7,588			5,936			1,652			28	%
Depreciation		13,920			12,420			1,500			12	%
General and administrative expenses		908			1,180			(272	)		(23	)%
Interest expense		(5,129	)		(4,322	)		(807	)		19	%
Other finance expense		(315	)		(79	)		(236	)		299	%
Realized and unrealized gain (loss) on derivative instruments		3,613			(6,470	)		10,083			(156	)%
Net gain (loss) on foreign currency transactions		13			(75	)		88			(117	)%
Income tax benefit (expense)		(3	)		—			3			0	%
Net income		19,357			8,802			10,555			120	%

Time Charter and Bareboat Revenues: Time charter and bareboat revenues increased by $4.1 million to $43.4 million for the three months ended September 30, 2016 compared to $39.3 million for the three months ended September 30, 2015. This was mainly due to increased time charter earnings of $4.4 million from the Ingrid Knutsen being included in our results of operations from October 15, 2015. The increase was partially offset by a $0.3 million reduction in time charter earnings due to a reduction in the charter rate after extending the duration of the time charter for the Carmen Knutsen for five years effective October 1, 2015.

Other income: Other income for the three months ended September 30, 2016 was $197,000 compared to $3,000 for the three months ended September 30, 2015. Pursuant to the Omnibus Agreement, KNOT agreed to guarantee the payment of the hire rate that is equal to or greater than the hire rate payable under the initial charters of the Bodil Knutsen and Windsor Knutsen for a period of five years from the closing date of the IPO. In October 2015, the Windsor Knutsen commenced operating under a new Shell time charter. The hire rate for the new charter is below the initial charter hire rate and the difference between the new hire rate and the initial rate is paid by KNOT. During the three months ended September 30, 2016, $197,000 was recognized as income pursuant to this guarantee.

Vessel operating expenses: Vessel operating expenses for the three months ended September 30, 2016 were $7.6 million, an increase of $1.7 million from $5.9 million in the three months ended September 30, 2015. The increase is mainly attributable to the increase of $1.2 million due to Ingrid Knutsen being included our results of operations from October 15, 2015 and an increase of $0.4 million mainly due to an increase of operating expense due to receipt of insurance proceeds in the third quarter of 2015.

Depreciation: Depreciation expense for the three months ended September 30, 2016 was $13.9 million, an increase of $1.5 million from $12.4 million in the three months ended September 30, 2015. This increase was mainly due to the Ingrid Knutsen being included in our results of operations from October 15, 2015.

General and administrative expenses: General and administrative expenses for the three months ended September 30, 2016 were $0.9 million, compared to $1.2 million for the same period in 2015.

Interest expense: Interest expense for the three months ended September 30, 2016 was $5.1 million, an increase of $0.8 million from $4.3 million for the three months ended September 30, 2015. The increase is principally due to increased indebtedness related to the acquisition of the Ingrid Knutsen and higher LIBOR during the three months ended September 30, 2016 compared to the three months ended September 30, 2015.

27

Other finance expense: Other finance expense was $0.3 million for the three months ended September 30, 2016 and $0.1 million for the three months ended September 30, 2015. Other finance expense is primarily related to bank fees and guarantee commissions. The increase of $0.2 million is mainly due to the guarantee commission for the outstanding amount under Guarantee Institute for Export Credits (GIEC) guarantee for the Ingrid Knutsen facility

Realized and unrealized gain (loss) on derivative instruments: Realized and unrealized gain (loss) on derivative instruments for the three months ended September 30, 2016 was a gain of $3.6 million, compared to a loss of $6.5 million for the three months ended September 30, 2015, as set forth in the table below:

	Three Months Ended September 30,
(US $ in thousands)	2016			2015			$ change
Realized (loss)
Interest rate swap contracts	$	(671	)	$	(989	)	$	318
Foreign exchange forward contracts		(152	)		(3,238	)		3,086
Unrealized gain (loss)
Interest rate swap contracts		2,744			(4,032	)		6,776
Foreign exchange forward contracts		1,692			1,789			(97	)
Total realized and unrealized gain (loss)	$	3,613		$	(6,470	)	$	10,083

As of September 30, 2016, the total notional amount of the Partnership’s outstanding interest rate swap contracts that were entered into in order to hedge outstanding or forecasted debt obligations was $407.7 million. The increased unrealized gain on interest rate swap contracts was due to an increase in long-term interest rates during the three months ended September 30, 2016 compared to the three months ended September 30, 2015. As of September 30, 2016, we had entered into foreign exchange forward contracts, selling a total notional amount of $35.0 million against NOK at an average exchange rate of NOK 8.4 per 1.0 U.S. Dollar, which are economic hedges for certain vessel operating expenses and general expenses in NOK. During the three months ended September 30, 2016, the Partnership executed foreign exchange forward contracts which resulted in a realized loss of $0.2 million and the Partnership entered into new foreign exchange forward contracts with the same notional amount. During the three months ended September 30, 2015, the Partnership executed foreign exchange forward contracts which resulted in a realized loss of $3.2 million

Net loss on foreign currency transactions: Net gain on foreign currency transactions for the three months ended September 30, 2016 was $13,000 compared to a loss of $75,000 for the three months ended September 30, 2015.

Income tax benefit (expense): Income tax expense for the three months ended September 30, 2016 was $3,000 and $nil for the three months ended September 30, 2015.

Net income: As a result of the foregoing, we earned net income of $19.4 million for the three months ended September 30, 2016 compared to net income of $8.8 million for the three months ended September 30, 2015.

Nine Months Ended September 30, 2016 Compared with the Nine Months Ended September 30, 2015

	Nine Months Ended September 30,
(US $ in thousands)	2016			2015			Change			% Change
Time charter and bareboat revenues	$	128,080		$	112,333		$	15,747			14	%
Other income		596			154			442			287	%
Vessel operating expenses		23,210			19,907			3,303			17	%
Depreciation		41,725			35,380			6,345			18	%
General and administrative expenses		3,164			3,232			(68	)		(2	)%
Goodwill impairment charge		—			6,217			(6,217	)		N/A
Interest income		9			3			6			200	%
Interest expense		(15,213	)		(12,720	)		(2,493	)		20	%
Other finance expense		(916	)		(178	)		(738	)		415	%
Realized and unrealized (loss) on derivative instruments		(2,747	)		(11,840	)		9,093			(77	)%
Net gain (loss) on foreign currency transactions		(104	)		(135	)		31			(23	)%
Income tax (expense)		(9	)		(6	)		(3	)		50	%
Net income		41,598			22,875			18,723			82	%

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Time Charter and Bareboat Revenues: Time charter and bareboat revenues increased by $15.8 million to $128.1 million for the nine months ended September 30, 2016 compared to $112.3 million for the nine months ended September 30, 2015. This was principally due to increased revenues of $17.6 million resulting from the Ingrid Knutsen and the Dan Sabia being included in our results of operations from October 15, 2015 and June 15, 2015, respectively, and $0.8 million due to one additional calendar day and better utilization during the nine month period ended September 30, 2016. The increase was partially offset (i) by a $1.3 million reduction in time charter earnings due to the Bodil Knutsen drydocking during the nine months ended September 30, 2016, (ii) a $0.7 million reduction in time charter earnings due to a reduction in the charter rate after extending the duration of the time charter for the Carmen Knutsen for five years effective October 1, 2015, (iii) a $0.6 million reduction in time charter earnings from the Windsor Knutsen.

Other income: Other income for the nine months ended September 30, 2016 was $0.6 million compared to $0.2 million for the nine months ended September 30, 2015. During the nine months ended September 30, 2016 and 2015, $0.6 million and $nil, respectively, was recognized as income pursuant to KNOT’s guarantee of the initial hire rate under the Windsor Knutsen time charter.

Vessel operating expenses: Vessel operating expenses for the nine months ended September 30, 2016 were $23.2 million, an increase of $3.3 million from $19.9 million in the nine months ended September 30, 2015. The increase was primarily due to an increase of $3.8 million due to the Ingrid Knutsen being included in our results of operations from October 15, 2015, partially offset by lower operating expenses mainly due to the strengthening of the U.S. dollar against the NOK during nine months ended September 30, 2016.

Depreciation: Depreciation expense for the nine months ended September 30, 2016 was $41.7 million, an increase of $6.4 million from $35.4 million in the nine months ended September 30, 2015. The increase was mainly due to the Ingrid Knutsen and Dan Sabia being included in our results of operations from October 15, 2015 and June 15, 2015, respectively.

General and administrative expenses: General and administrative expenses for the nine months ended September 30, 2016 and 2015 were $3.2 million.

Goodwill impairment charge: Goodwill impairment charge for nine months ended September 30, 2016 was $nil compared to $6.2 million for the nine months ended September 30, 2015. During the three months ended June 30, 2015, the Partnership concluded that indicators of impairment were present due to significant reduction in the price of the Partnership’s common units during the quarter and consequently, the Partnership performed an interim vessel and goodwill impairment analysis as of June 30, 2015 on its fleet. Based on the results of this analysis, the Partnership concluded that there was no impairment to the vessels’ values. However, the Partnership concluded that the carrying value of the goodwill, which related mainly to capitalized goodwill which arose in 2008 when the Partnership’s predecessor acquired the Windsor Knutsen and three other vessels under construction, in a transaction that was then accounted for as a step transaction, exceeded its fair values. As a result, a goodwill impairment charge of $6.2 million was recognized in the unaudited condensed consolidated interim financial statements for the nine months ended September 30, 2015. The fair value was determined using the present value of the expected future cash flows discounted at a rate equivalent to a market participant’s weighed average cost of capital. The estimates and assumptions regarding expected future cash flows and appropriate discount rates are in part based upon existing contracts, future shuttle tanker rates, historical experience, financial forecasts and industry trends and conditions.

Interest income: Interest income for the nine months ended September 30, 2016 was $9,000, compared to $3,000 for the nine months ended September 30, 2015.

Interest expense: Interest expense for the nine months ended September 30, 2016 was $15.2 million, an increase of $2.5 million from $12.7 million in the nine months ended September 30, 2015. The increase is mainly due to the increased indebtedness related to the acquisitions of the Ingrid Knutsen and Dan Sabia on October 15, 2015 and June 15, 2015 and higher LIBOR margin during the nine months ended September 30, 2016 compared to the nine months ended September 30, 2015.

Other finance expense: Other finance expense for the nine months ended September 30, 2016 was $0.9 million, an increase of $0.7 million from $0.2 million for the nine months ended September 30, 2015. Other finance expense is primarily related to bank fees and guarantee commissions. The increase is mainly due to the guarantee commission for the outstanding amount under the GIEC guarantee for the Ingrid Knutsen facility.

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Realized and unrealized loss on derivative instruments: Realized and unrealized loss on derivative instruments for the nine months ended September 30, 2016 was $2.8 million, compared to $11.8 million for the nine months ended September 30, 2015, as set forth in the table below:

	Nine Months Ended September 30,
(US $ in thousands)	2016			2015			Change
Realized (loss)
Interest rate swap contracts	$	(2,847	)	$	(3,348	)	$	501
Foreign exchange forward contracts		(468	)		(3,238	)		2,770
Unrealized (loss)
Interest rate swap contracts		(3,122	)		(5,866	)		2,744
Foreign exchange forward contracts		3,690			612			3,078
Total realized and unrealized (loss)	$	(2,747	)	$	(11,840	)	$	9,093

The decreased net realized and unrealized loss on derivative instruments was due to an increase in long-term interest rates and to strengthening of the U.S. dollar against the NOK during the nine months ended September 30, 2016 compared to the nine months ended September 30, 2015.

Net loss on foreign currency transactions: Net loss on foreign currency transactions for the nine months ended September 30, 2016 was $0.1 million. For the nine months ended September 30, 2015, the Partnership had a net loss on foreign currency transaction of $0.1 million.

Income tax expense: Income tax expense for the nine months ended September 30, 2016 was $9,000 compare to $6,000 for the nine months ended September, 2015.

Net income: As a result of the foregoing, we earned net income of $41.6 million for the nine months ended September 30, 2016 compared to net income of $22.9 million for the nine months ended September 30, 2015.

Liquidity and Capital Resources

Liquidity and Cash Needs

We operate in a capital-intensive industry, and we expect to finance the purchase of additional vessels and other capital expenditures through a combination of borrowings from commercial banks, cash generated from operations and debt and equity financings. In addition to paying distributions, our other liquidity requirements relate to servicing our debt, funding investments (including the equity portion of investments in vessels), funding working capital and maintaining cash reserves against fluctuations in operating cash flows. We believe our current resources are sufficient to meet our working capital requirements for our current business. Generally, our long-term sources of funds are cash from operations, long-term bank borrowings and other debt and equity financings. Because we distribute our available cash, we expect that we will rely upon external financing sources, including bank borrowings and the issuance of debt and equity securities, to fund acquisitions and other expansion capital expenditures.

Our funding and treasury activities are intended to maximize investment returns while maintaining appropriate liquidity. Cash and cash equivalents are held primarily in U.S. Dollars with some balances held in NOK, British Pounds and Euros. We have not made use of derivative instruments other than for interest rate and currency risk management purposes. We expect to continue to economically hedge our exposure to interest rate fluctuations in the future by entering into interest rate swap contracts.

We estimate that we will spend in total approximately $17.2 million for dry-docking and classification surveys for the seven time charter vessels in our fleet in each of 2017 and 2020. As our fleet matures and expands, our dry-docking expenses will likely increase. Ongoing costs for compliance with environmental regulations are primarily included as part of our dry-docking and society classification survey costs or are a component of our vessel operating expenses. We are not aware of any regulatory changes or environmental liabilities that we anticipate will have a material impact on our current or future operations. There will be further costs related to voyages to and from the dry-docking yard that will depend on actual deviation from the vessel’s ordinary trading area to dry-docking yard.

As of September 30, 2016, the Partnership had available liquidity of $62.4 million, which consisted of cash and cash equivalents of $27.4 million and an undrawn revolving credit facility of $35 million.

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On August 15, 2016, we paid a quarterly cash distribution of $0.52 per unit with respect to the quarter ended June 30, 2016. This cash distribution amounted to $15.0 million.

On November 14, 2016, we paid a quarterly cash distribution of $0.52 per unit with respect to the quarter ended September 30, 2016. This cash distribution amounted to $15.0 million.

On August 12, 2015, the Board authorized a program for the Partnership to repurchase up to 666,667 of its common units. The board of directors of the General Partner concurrently authorized the General Partner to purchase up to 333,333 common units of the Partnership. On August 10, 2016, the Board and the board of directors of the General Partner authorized an extension of the common unit purchase program to August 31, 2017. As of December 31, 2015, the Partnership and the General Partner had purchased 180,906 and 90,368 common units, respectively, pursuant to the program at an average purchase price of $12.71 per unit. No additional common units have been purchased by the Partnership or the General Partner in 2016.

The Partnership and the General Partner may therefore purchase up to an additional 485,761 and 242,965 common units, respectively, under the extended program.

As of September 30, 2016, our current liabilities exceeded current assets by $36.9 million. Included within current liabilities are current portion of mark-to-market valuations of derivative instruments representing $6.8 million of these liabilities, and included within current assets are mark-to-market valuations of derivative instruments representing $1.6 million of these assets. We currently have no intention of terminating these swap derivative instruments and foreign currency contracts and hence realizing these liabilities.

We expect that the cash we generate from operations (assuming the current rates earned from existing charters) will be sufficient to cover our operational cash outflows and our ongoing obligations under our financing commitments to pay loan interest and make scheduled loan repayments and to make distributions on our outstanding common units. Accordingly, as of September 30, 2016, we believe that our current resources, including our undrawn revolving credit facility of $35.0 million, are sufficient to meet our working capital requirements for our current business for at least the next twelve months.

Cash Flows

The following table summarizes our net cash flows from operating, investing and financing activities and our cash and cash equivalents for the periods presented:

	Nine Months Ended September 30,
(US $ in thousands)	2016			2015
Net cash provided by operating activities	$	83,110		$	63,770
Net cash used in investing activities		(849	)		(38,036	)
Net cash provided by (used in) financing activities		(78,529	)		10,923
Effect of exchange rate changes on cash		77			(206	)
Net increase in cash and cash equivalents		3,732			36,451
Cash and cash equivalents at beginning of period		23,573			30,746
Cash and cash equivalents at end of period		27,382			67,197

Net cash provided by operating activities

Net cash provided by operating activities increased by $19.3 million to $83.1 million in the nine months ended September 30, 2016 compared to $63.8 million in the nine months ended September 30, 2015. This was mainly due to higher earnings through the contributions from the Ingrid Knutsen and the Dan Sabia being included in our results of operations as of October 15, 2015 and June 15, 2015, respectively and general decrease of the working capital mainly due to increased prepaid revenue from the charters. The increase was partially offset by increased drydocking expenditures of $2.5 million for the scheduled drydocking of the Bodil Knutsen in the first quarter of 2016.

Net cash used in investing activities

Net cash used in investing activities was $0.9 million in the nine months ended September 30, 2016 compared to $38.0 million in the nine months ended September 30, 2015. Net cash used in investing activities in the nine months ended September 30, 2015 was higher due to the acquisition of the Dan Sabia on June 15, 2015.

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Net cash provided by/(used in) financing activities

Net cash used in financing activities during the nine months ended September 30, 2016 of $78.5 million mainly related to repayment of long-term debt of $38.2 million and payment of cash distributions of $45.1 million partially offset by a $5.0 million drawdown under our long-term revolving credit facility, which was fully repaid in July, 2016.

Net cash provided by financing activities during the nine months ended September 30, 2015 of $10.9 million mainly related to the net proceeds from our September 2015 offering of common units of $116.6 million and partially offset by the following:

• repayment of long-term debt of $55.4 million;

• repayment of the seller’s credit from KNOT of $12.0 million related to the Dan Cisne acquisition; and

• payment of cash distributions of $38.3 million.

Borrowing Activities

Long-Term Debt

As of September 30, 2016 and December 31, 2015, the Partnership had the following debt amounts outstanding:

(U.S. Dollars in thousands)	Vessel	September 30, 2016		December 31, 2015
$220 million loan facility	Windsor Knutsen, Bodil Knutsen, Carmen Knutsen	$	184,643	$	196,429
$140 million loan facility	Fortaleza Knutsen & Recife Knutsen		120,313		126,875
$117 million loan facility	Hilda Knutsen		78,103		81,797
$117 million loan facility	Torill Knutsen		79,337		83,033
$172.5 million loan facility	Dan Cisne, Dan Sabia		105,139		109,339
$77.5 million loan facility	Ingrid Knutsen		70,934		74,217
Total long-term debt			638,469		671,690
Less: current installments			50,084		49,684
Less: unamortized deferred loan issuance costs			1,207		1,149
Current portion of long-term debt			48,877		48,535
Amounts due after one year			588,384		622,006
Less: unamortized deferred loan issuance costs			2,052		2,819
Long-term debt less current installments and unamortized deferred loan issuance costs		$	586,332	$	619,187

The Partnership’s outstanding debt of $638.5 million as of September 30, 2016 is repayable as follows:

(US $ in thousands)	Period repayment		Balloon repayment
Remainder of 2016	$	16,463	$	—
2017		50,084		—
2018		48,495		154,927
2019		28,582		237,678
2020		17,650		—
2021 and thereafter		71,650		12,940
Total	$	232,924	$	405,545

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As of September 30, 2016, the interest rates on the Partnership’s loan agreements (other than tranche two of the $77.5 million loan facility) were the London Interbank Offered Rate (“LIBOR”) plus a fixed margin ranging from 2.125% to 2.5%. On the export credit loan of $55.1 million which is tranche two of the $77.5 million loan facility secured by the Ingrid Knutsen, the annual rate is 3.85% composed of a 2.5% bank facility rate plus a commission of 1.35% to GIEC, the export credit guarantor. The guarantee commission of 1.35% is classified as other finance expense.

$240 Million Secured Loan Facility

In June 2014, the Partnership’s subsidiaries KNOT Shuttle Tankers 18 AS, KNOT Shuttle Tankers 17 AS and Knutsen Shuttle Tankers 13 AS entered into a senior syndicate secured loan facility in an aggregate amount of $240 million (the “Senior Secured Loan Facility”) to repay existing debt under previous credit facilities and a $10.5 million seller’s credit from KNOT. The Senior Secured Loan Facility consisted of (i) a $220 million term loan (the “Term Loan Facility”) and (ii) a $20 million revolving credit facility (the “Revolving Credit Facility”). The Revolving Credit Facility terminates in June 2019, and bears interest at LIBOR plus a fixed margin of 2.125%, and has a commitment fee equal to 40% of the margin of the Revolving Credit Facility calculated on the daily undrawn portion of the Revolving Credit Facility. As of September 30, 2016, the Revolving Credit Facility was undrawn. The Term Loan Facility is repayable in quarterly installments over five years with a final balloon payment due at maturity at June 2019. The Term Loan Facility bears interest at LIBOR plus a margin of 2.125%.

On June 30, 2016, the Partnership’s subsidiaries KNOT Shuttle Tankers 18 AS, KNOT Shuttle Tankers 17 AS and Knutsen Shuttle Tankers 13 AS, as borrowers, entered into an amended and restated senior secured credit facility (the “Amended Senior Secured Loan Facility”), which amended the Senior Secured Loan Facility. The Amended Senior Secured Loan Facility includes a new revolving credit facility tranche of $15 million, bringing the total revolving credit commitments under the facility to $35 million. The new revolving credit facility matures in June 2019, bears interest at LIBOR plus a fixed margin of 2.5% and has a commitment fee equal to 40% of the margin of the revolving facility tranche calculated on the daily undrawn portion of such tranche. The other material terms of the Senior Secured Loan Facility remain unaltered.

The Windsor Knutsen, the Bodil Knutsen and the Carmen Knutsen, assignments of earnings, charterparty contracts and insurance proceeds are pledged as collateral for the Amended Senior Secured Loan Facility. The Amended Senior Secured Loan Facility is guaranteed by the Partnership and KNOT Shuttle Tankers AS, and secured by vessel mortgages on the Windsor Knutsen, the Bodil Knutsen and the Carmen Knutsen.

The Amended Senior Secured Loan Facility contains the following financial covenants:

• The aggregate market value of the Windsor Knutsen, Bodil Knutsen and Carmen Knutsen shall not be less than 110% of the outstanding balance under the Amended Senior Secured Loan Facility for the first two years, 120% for the third and fourth years, and 125% thereafter;

• Positive working capital for the borrowers and the Partnership;

• Minimum liquidity of the Partnership of $17 million plus increments of $1 million for each additional vessel acquired by the Partnership and $1.5 million for each owned vessel with less than 12 months remaining tenor on its employment contract;

• Minimum book equity ratio for the Partnership of 30%; and

• Minimum EBITDA to interest ratio for the Partnership of 2.50.

The Amended Senior Secured Loan Facility also identifies various events that may trigger mandatory reduction, prepayment and cancellation of the facility, including total loss or sale of a vessel and customary events of default. As of September 30, 2016, the borrowers and the guarantors were in compliance with all covenants under this facility.

$117 Million Hilda Loan Facility

In July 2011, Knutsen Shuttle Tankers 14 AS, the subsidiary owning the Hilda Knutsen, as the borrower, entered into a secured loan facility in an aggregate amount of $117 million (the “Hilda Facility”). The Hilda Facility is repayable in quarterly installments over five years with a final balloon payment due at maturity in July 2018. The Hilda Facility bears interest at LIBOR plus a fixed margin of 2.5%. The facility is secured by a vessel mortgage on the Hilda Knutsen. The Hilda Knutsen, assignments of earnings, charterparty contracts and insurance proceeds are pledged as collateral for the Hilda Facility.

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The Partnership and KNOT Shuttle Tankers AS are the sole guarantors. The Hilda Facility contains the following primary financial covenants:

• Market value of the Hilda Knutsen shall not be less than 110% of the outstanding balance under the Hilda Facility for the first two years, 120% for the third and fourth year, and 125% thereafter;

• Positive working capital of the borrower and the Partnership;

• Minimum liquidity of the Partnership of $17 million plus increments of $1 million for each additional vessel acquired by the Partnership and $1.5 million for each owned vessel with less than 12 months remaining tenor on its employment contract;

• Minimum book equity ratio for the Partnership of 30%; and

• Minimum EBITDA to interest ratio for the Partnership of 2.50.

The Hilda Facility also identifies various events that may trigger mandatory reduction, prepayment and cancellation of the facility, including total loss or sale of a vessel and customary events of default. As of September 30, 2016, the borrower and the guarantors were in compliance with all covenants under this facility.

$117 Million Torill Loan Facility

In November 2011, Knutsen Shuttle Tankers 15 AS, the subsidiary owning the Torill Knutsen, as the borrower, entered into a secured loan facility in an aggregate amount of $117 million (the “Torill Facility”). The Torill Facility is repayable in quarterly installments over five years with a final balloon payment due at maturity in October 2018. The Torill Facility bears interest at LIBOR plus a fixed margin of 2.5%. The facility is secured by a vessel mortgage on the Torill Knutsen. The Torill Knutsen, assignments of earnings, charterparty contracts and insurance proceeds are pledged as collateral for the Torill Facility. The Partnership and KNOT Shuttle Tankers AS are the sole guarantors. The Torill Facility contains the following primary financial covenants:

• Market value of the Torill Knutsen shall not be less than 110% of the outstanding balance under the Torill Facility for the first two years, 120% for the third and fourth year, and 125% thereafter;

• Positive working capital of the borrower and the Partnership;

• Minimum liquidity of the Partnership of $17 million plus increments of $1 million for each additional vessel acquired by the Partnership and $1.5 million for each owned vessel with less than 12 months remaining tenor on its employment contract;

• Minimum book equity ratio for the Partnership of 30%; and

• Minimum EBITDA to interest ratio for the Partnership of 2.50.

The Torill Facility also identifies various events that may trigger mandatory reduction, prepayment and cancellation of the facility, including total loss or sale of a vessel and customary events of default. As of September 30, 2016, the borrower and the guarantors were in compliance with all covenants under this facility.

$140 Million Secured Loan Facility

In June 2014, the Partnership’s subsidiary Knutsen Shuttle Tankers XII KS, as the borrower, entered into a senior syndicate secured loan facility in the amount of $140 million (the “New Fortaleza and Recife Facility”). The New Fortaleza and Recife Facility was drawn in November 2014 and replaced a $160 million loan facility previously secured by the Fortaleza Knutsen and the Recife Knutsen. The New Fortaleza and Recife Facility is repayable in quarterly installments over five years with a final balloon payment due at maturity at June 2019. The facility bears interest at LIBOR plus a margin of 2.125%. The Fortaleza Knutsen and the Recife Knutsen, assignments of earnings, charterparty contracts and insurance proceeds are pledged as collateral for the New Fortaleza and Recife Facility. The facility is guaranteed by the Partnership and KNOT Shuttle Tankers AS and is secured by vessel mortgages on the Fortaleza Knutsen and the Recife Knutsen.

The New Fortaleza and Recife Facility contains the following financial covenants:

• The aggregate market value of the Fortaleza Knutsen and Recife Knutsen shall not be less than 110% of the outstanding balance under the New Fortaleza and Recife Facility for the first two years, 120% for the third and fourth year, and 125% thereafter;

• Positive working capital of the borrower and the Partnership;

• Minimum liquidity of the Partnership of $17 million plus increments of $1 million for each additional vessel acquired by the Partnership and $1.5 million for each owned vessel with less than 12 months remaining tenor on its employment contract;

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• Minimum book equity ratio for the Partnership of 30%; and

• Minimum EBITDA to interest ratio for the Partnership of 2.50.

The New Fortaleza and Recife Facility also identifies various events that may trigger mandatory reduction, prepayment and cancellation of the facility, including total loss or sale of a vessel and customary events of default. As of September 30, 2016, the borrower and the guarantors were in compliance with all covenants under this facility.

$172.5 Million Secured Loan Facility

In April 2014, KNOT Shuttle Tankers 20 AS and KNOT Shuttle Tankers 21 AS, the subsidiaries owning the Dan Cisne and Dan Sabia, as the borrowers, entered into a $172.5 million senior secured loan facility. In connection with the Partnership’s acquisition of the Dan Cisne, in December 2014, the $172.5 million senior secured loan facility was split into a tranche related to the Dan Cisne (the “Dan Cisne Facility”) and a tranche related to Dan Sabia (the “Dan Sabia Facility”).

The Dan Cisne Facility and the Dan Sabia Facility are guaranteed by the Partnership and secured by a vessel mortgage on the Dan Cisne and Dan Sabia . The Dan Cisne Facility and the Dan Sabia Facility bear interest at LIBOR plus a margin of 2.4% and are repayable in semiannual installments with a final balloon payment due at maturity at September 2023 and January 2024, respectively.

The facilities contain the following financial covenants:

• Market value of each of the Dan Cisne and Dan Sabia shall not be less than 100% of the outstanding balance under the Dan Cisne Facility and Dan Sabia Facility, respectively, for the first three years, and 125% thereafter;

• Minimum liquidity of the Partnership of $17 million plus increments of $1 million for each additional vessel acquired by the Partnership and $1.5 million for each owned vessel with less than 12 months remaining tenor on its employment contract;

• Minimum book equity ratio for the Partnership of 30%.

The facility also identifies various events that may trigger mandatory reduction, prepayment and cancellation of the facility, including total loss or sale of a vessel and customary events of default. As of September 30, 2016, the borrowers and the guarantor were in compliance with all covenants under this facility.

$77.5 Million Secured Loan Facility

In June 2012, Knutsen NYK Shuttle Tankers 16 AS, the subsidiary owning the Ingrid Knutsen, as the borrower, entered into a secured loan facility in an aggregate amount of $90.0 million (the “Ingrid Facility”). As of December 31, 2015, the aggregate amount outstanding under the facility was $77.5 million. The Ingrid Facility includes two tranches. Tranche one is a commercial bank loan of $22.4 million, repayable in semi-annual installments with a final balloon payment due at maturity in December 2018. Tranche one bears interest at LIBOR, plus a margin of 2.25%. Tranche two is an export credit loan of $55.1 million, repayable in semi-annual installments and maturing in November 2025.

Tranche two bears interest at an annual fixed rate of 3.85%, composed of a 2.5% bank facility rate plus a commission of 1.35% to the export credit guarantor. The facility is secured by a vessel mortgage on the Ingrid Knutsen. The Ingrid Knutsen, assignments of earnings, charterparty contracts and insurance proceeds are pledged as collateral for the Ingrid Facility. The Partnership and KNOT Shuttle Tankers AS are the sole guarantors.

The Ingrid Facility contains the following financial covenants:

• Market value of the Ingrid Knutsen shall not be less than 125% of the outstanding balance under the Ingrid Facility;

• Positive working capital of the borrower and the Partnership;

• Minimum liquidity of the Partnership of $17 million plus increments of $1 million for each additional vessel acquired by the Partnership and $1.5 million for each owned vessel with less than 12 months remaining tenor on its employment contract;

• Minimum book equity ratio for the Partnership of 30%; and

• Minimum EBITDA to interest ratio for the Partnership of 2.50.

The Ingrid Facility also identifies various events that may trigger mandatory reduction, prepayment and cancellation of the facility, including total loss or sale of a vessel and customary events of default. As of September 30, 2016, the borrower and the guarantors were in compliance with all covenants under this facility.

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Derivative Instruments and Hedging Activities

As of September 30, 2016, the Partnership had entered into various interest rate swap agreements maturing between April 2018 and January 2024, for a total notional amount of $407.7 million to hedge against the interest rate risks of its variable-rate borrowings. Under the terms of the interest rate swap agreements, the Partnership will receive from the counterparty interest on the notional amount based on three or six month LIBOR and will pay to the counterparty a fixed rate. Pursuant to the interest rate swap agreements, the Partnership will pay to the counterparty a weighted average interest rate of 1.54%.

We enter into foreign exchange forward contracts in order to manage our exposure to the risk of movements in foreign currency exchange rate fluctuations. As of September 30, 2016, the total contract amount in foreign currency of our outstanding foreign exchange forward contracts that were entered into to economically hedge our outstanding future payments in currencies other than the U.S. Dollar was NOK 292.7 million. We do not apply hedge accounting for derivative instruments. We do not speculate using derivative instruments.

Contractual Obligations

The following table summarizes our long-term contractual obligations as of September 30, 2016:

	Payments Due by Period
(US $ in thousands)	Total		Less than 1 Year		1-3 Years		4-5 Years		More than 5 Years
Long-term debt obligations (including interest)(1)	$	712,614	$	73,822	$	512,133	$	44,164	$	82,494
Total	$	712,614	$	73,822	$	512,133	$	44,164	$	82,494

(1) The long-term debt obligations have been calculated assuming interest rates based on the 6-month LIBOR as of September 30, 2016, plus the applicable margin for all periods presented.

Off-Balance Sheet Arrangements

Currently, we do not have any off-balance sheet arrangements.

Critical Accounting Estimates

The preparation of the unaudited condensed consolidated interim financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and related disclosures about contingent assets and liabilities. We base these estimates and assumptions on historical experience and on various other information and assumptions that we believe to be reasonable. Our critical accounting estimates are important to the portrayal of both our financial condition and results of operations and require us to make subjective or complex assumptions or estimates about matters that are uncertain. For a description of our material accounting policies that involve higher degree of judgment, please read Note 2 – Summary of Significant Accounting Policies of our consolidate financial statement included in our 2015 20-F filed with the Securities and Exchange Commission (“SEC”).

Quantitative and Qualitative Disclosures About Market Risk

We are exposed to various market risks, including interest rate, foreign currency exchange and concentration of credit risks. Historically, we have entered into certain derivative instruments and contracts to maintain the desired level of exposure arising from interest rate and certain foreign exchange risks. Our policy is to economically hedge our exposure to risks, where possible, within boundaries deemed appropriate by management.

Interest Rate Risks

A portion of our debt obligations and surplus funds placed with financial institutions are subject to movements in interest rates. It is our policy to obtain the most favorable interest rates available without increasing our foreign currency exposure. In keeping with this, our surplus funds may in the future be placed in fixed deposits with reputable financial institutions which yield better returns than bank deposits. The deposits generally have short-term maturities so as to provide us with the flexibility to meet working capital and capital investments.

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We have historically used interest rate swaps to manage our exposure to interest rate risks. Interest rate swaps were used to convert floating rate debt obligations based on LIBOR to a fixed rate in order to achieve an overall desired position of fixed and floating rate debt. The extent to which interest rate swaps are used is determined by reference to our net debt exposure and our views regarding future interest rates. Our interest rate swaps do not qualify for hedge accounting and movements in their fair values are reflected in the statement of operations under “gain/(loss) on derivative financial instruments.” Interest rate swap agreements that have a positive fair value are recorded as “Derivative assets,” while swaps with a negative fair value are recorded as “Derivative liabilities.”

As of September 30, 2016, our net exposure to floating interest rate fluctuations on its outstanding debt was approximately $203.4 million, based on total net interest bearing debt of approximately $638.5 million less the notional amount of our floating to fixed interest rate swaps of $407.7 million, and less cash and cash equivalents of $27.4 million.

A 1% change in short-term interest rates would result in an increase or decrease to our interest expense of approximately $2.0 million on an annual basis as of September 30, 2016.

Foreign Currency Fluctuation Risks

We and our subsidiaries utilize the U.S. Dollar as our functional and reporting currency because all of our revenues and the majority of our expenditures, including the majority of our investments in vessels and our financing transactions, are denominated in U.S. Dollars. We could, however, earn revenue in other currencies and we currently incur a portion of our expenses in other currencies. Therefore, there is a risk that currency fluctuations could have an adverse effect on the value of our cash flows.

Our foreign currency risk arises from:

• the measurement of monetary assets and liabilities denominated in foreign currencies converted to U.S. Dollars, with the resulting gain or loss recorded as “Foreign exchange gain/(loss);” and

• the impact of fluctuations in exchange rates on the reported amounts of our revenues, if any, and expenses that are denominated in foreign currencies.

As of September 30, 2016 we had entered into foreign exchange forward contracts, selling a total notional amount of $35.0 million against NOK at an average exchange rate of NOK 8.4 per 1.0 U.S. Dollar, which are economic hedges for certain vessel operating expenses and general expenses in NOK. We did not apply hedge accounting to our foreign exchange forward contracts.

Concentration of Credit Risk

The market for our services is the offshore oil transportation industry, and the customers consist primarily of major oil and gas companies, independent oil and gas producers and government-owned oil companies. As of September 30, 2016 and December 31, 2015, sixe customers accounted for substantially all of our revenues. Ongoing credit evaluations of our customers are performed and generally do not require collateral in our business agreements. Typically, under our time charters and bareboat charters, the customer pays for the month’s charter the first day of each month, which reduces our level of credit risk. Provisions for potential credit losses are maintained when necessary.

We have bank deposits that expose us to credit risk arising from possible default by the counterparty. We manage the risk by using credit-worthy financial institutions.

Retained Risk

For a description of our insurance coverage, including the risks retained by us related to our insurance policies, please read “Item 4. Information on the Partnership – Business Overview – Risk of Loss, Insurance and Risk Management” in our 2015 20-F.

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FORWARD-LOOKING STATEMENTS

This Report on Form 6-K contains certain forward-looking statements concerning future events and our operations, performance and financial condition and assumptions related thereto. Forward-looking statements include, without limitation, any statement that may predict, forecast, indicate or imply future results, performance or achievements, and may contain the words “believe,” “anticipate,” “expect,” “estimate,” “project,” “will be,” “will continue,” “will likely result,” “plan,” “intend” or words or phrases of similar meanings. These statements involve known and unknown risks and are based upon a number of assumptions and estimates that are inherently subject to significant uncertainties and contingencies, many of which are beyond our control. Actual results may differ materially from those expressed or implied by such forward-looking statements. Forward-looking statements include statements with respect to, among other things:

• market trends in the shuttle tanker or general tanker industries, including hire rates, factors affecting supply and demand, and opportunities for the profitable operations of shuttle tankers;

• KNOT’s and our ability to build shuttle tankers and the timing of the delivery and acceptance of any such vessels by their respective charterers;

• forecasts of our ability to make or increase distributions on our units and the amount of any such distributions;

• our ability to integrate and realize the expected benefits from acquisitions, including our acquisition of the entity that owns the Raquel Knutsen;

• our ability to close the private placement of the Preferred Units;

• our anticipated growth strategies;

• the effects of a worldwide or regional economic slowdown;

• turmoil in the global financial markets;

• fluctuations in currencies and interest rates;

• fluctuations in the price of oil;

• general market conditions, including fluctuations in hire rates and vessel values;

• changes in our operating expenses, including drydocking and insurance costs and bunker prices;

• our future financial condition or results of operations and future revenues and expenses;

• the repayment of debt and settling of any interest rate swaps;

• our ability to make additional borrowings and to access debt and equity markets;

• planned capital expenditures and availability of capital resources to fund capital expenditures;

• our ability to maintain long-term relationships with major users of shuttle tonnage;

• our ability to leverage KNOT’s relationships and reputation in the shipping industry;

• our ability to purchase vessels from KNOT in the future;

• our continued ability to enter into long-term charters, which we define as charters of five years or more;

• our ability to maximize the use of our vessels, including the re-deployment or disposition of vessels no longer under long-term charter;

• the financial condition of our existing or future customers and their ability to fulfill their charter obligations;

• timely purchases and deliveries of newbuilds;

• future purchase prices of newbuilds and secondhand vessels;

• any impairment of the value of our vessels;

• our ability to compete successfully for future chartering and newbuild opportunities;

• acceptance of a vessel by its charterer;

• termination dates and extensions of charters;

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• the expected cost of, and our ability to comply with, governmental regulations, maritime self-regulatory organization standards, as well as standard regulations imposed by its charterers applicable to our business;

• availability of skilled labor, vessel crews and management;

• our general and administrative expenses and fees and expenses payable under the technical management agreements, management and administration agreements and the management and administrative services agreement;

• the anticipated taxation of KNOT Offshore Partners and distributions to our unitholders;

• estimated future maintenance and replacement capital expenditures;

• our ability to retain key employees;

• customers’ increasing emphasis on environmental and safety concerns;

• potential liability from any pending or future litigation;

• potential disruption of shipping routes due to accidents, political events, piracy or acts by terrorists;

• future sales of our securities in the public market;

• our business strategy and other plans and objectives for future operations; and

• other factors listed from time to time in the reports and other documents that we file with the SEC.

Forward-looking statements in this Report on Form 6-K are based upon management’s current plans, expectations, estimates, assumptions and beliefs concerning future events impacting us and therefore involve a number of risks and uncertainties, including those risks discussed in our 2015 20-F. New factors emerge from time to time, and it is not possible for us to predict all of these factors. Further, we cannot assess the impact of each such factor on our business or the extent to which any factor, or combination of factors, may cause actual results to be materially different from those contained in any forward-looking statement. We do not intend to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in our expectations with respect thereto or any change in events, conditions or circumstances on which any such statement is based.

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EXHIBITS

The following exhibits are filed as part of this report:

Exhibit Number

Description

101

The following financial information from KNOT Offshore Partners LP’s Report on Form 6-K for the three months ended September 30, 2016 formatted in XBRL (eXtensible Business Reporting Language): (i) Unaudited Condensed Consolidated Statements of Operations for the Three and Nine Months Ended September 30, 2016 and 2015; (ii) Unaudited Condensed Consolidated Statements of Comprehensive Income for the Three and Nine Months Ended September 30, 2016 and 2015; (iii) Unaudited Condensed Consolidated Balance Sheets as of September 30, 2016 and December 31, 2015; (iv) Unaudited Condensed Consolidated Statements of Changes in Partners’ Capital for the Nine Months Ended September 30, 2016 and 2015; (v) Unaudited Condensed Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2016 and 2015; and (vi) Notes to Unaudited Condensed Consolidated Financial Statements.

40

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	KNOT OFFSHORE PARTNERS LP
Date: January 4, 2017	By:	/s/ John Costain
		Name:	John Costain
		Title:	Chief Executive Officer and Chief Financial Officer

41

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Document and Entity Information	9 Months Ended
	Sep. 30, 2016
Document And Entity Information [Abstract]
Document Type	6-K
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Trading Symbol	KNOP
Entity Registrant Name	KNOT Offshore Partners LP
Entity Central Index Key	0001564180
Current Fiscal Year End Date	--12-31

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Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Operating revenues: (Notes 3 and 9)
Time charter and bareboat revenues	$ 43,390	$ 39,281	$ 128,080	$ 112,333
Other income	197	3	596	154
Total revenues	43,587	39,284	128,676	112,487
Operating expenses: (Note 9)
Vessel operating expenses	7,588	5,936	23,210	19,907
Depreciation	13,920	12,420	41,725	35,380
General and administrative expenses	908	1,180	3,164	3,232
Goodwill impairment charge (Note 4)				6,217
Total operating expenses	22,416	19,536	68,099	64,736
Operating income	21,171	19,748	60,577	47,751
Finance income (expense) (Note 9):
Interest income	6	0	9	3
Interest expense	(5,129)	(4,322)	(15,213)	(12,720)
Other finance expense	(315)	(79)	(916)	(178)
Realized and unrealized gain (loss) on derivative instruments (Note 5)	3,613	(6,470)	(2,747)	(11,840)
Net gain (loss) on foreign currency transactions	13	(75)	(104)	(135)
Total finance expense	(1,812)	(10,946)	(18,971)	(24,870)
Income before income taxes	19,360	8,802	41,607	22,881
Income tax expense (Note 8)	(3)		(9)	(6)
Net income	19,357	8,802	41,598	22,875
General Partner's interest in net income	390	164	891	428
Limited Partners' interest in net income	$ 18,967	$ 8,638	$ 40,707	$ 22,447
Earnings per unit (Note 11):
Cash distributions declared and paid per unit (Note 11)	$ 0.520	$ 0.510	$ 0.520	$ 1.510
Common Units [Member]
Finance income (expense) (Note 9):
Net income			$ 35,655	$ 13,596
Limited Partners' interest in net income	$ (4,243)	$ (4,247)	$ (3,480)	$ (12,816)
Earnings per unit (Note 11):
Earnings per unit (basic and diluted)	$ 0.697	$ 0.294	$ 1.563	$ 0.850
Subordinated Units [Member]
Finance income (expense) (Note 9):
Net income			$ 5,052	$ 8,851
Limited Partners' interest in net income		$ (1,935)		$ (5,838)
Earnings per unit (Note 11):
Earnings per unit (basic and diluted)		$ 0.362	$ 1.154	$ 1.033
General Partner Unit [Member]
Finance income (expense) (Note 9):
Net income			$ 891	$ 428
General Partner's interest in net income	$ (87)	$ (126)	$ (72)	$ (381)
Earnings per unit (Note 11):
Earnings per unit (basic and diluted)	$ 0.697	$ 0.294	$ 1.594	$ 0.915

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Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 19,357	$ 8,802	$ 41,598	$ 22,875
Other comprehensive income, net of tax	0	0	0	0
Comprehensive income	$ 19,357	$ 8,802	$ 41,598	$ 22,875

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Condensed Consolidated Balance Sheets - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents (Note 6)		$ 27,382	$ 23,573
Amounts due from related parties (Note 9)		69	58
Inventories		758	849
Derivative assets (Notes 5 and 6)		1,645
Other current assets	[1]	1,455	1,800
Total current assets		31,309	26,280
Vessels and equipment:
Vessels		1,352,165	1,351,219
Less accumulated depreciation		(197,518)	(158,292)
Net property, plant, and equipment		1,154,647	1,192,927
Derivative assets (Notes 5 and 6)			695
Accrued income		921
Total assets		1,186,877	1,219,902
Current liabilities:
Trade accounts payable		1,453	1,995
Accrued expenses		3,967	3,888
Current portion of long-term debt (Notes 6 and 7)	[1]	48,877	48,535
Current portion of derivative liabilities (Notes 5 and 6)		2,621	5,138
Income taxes payable (Note 8)		21	249
Current portion of contract liabilities		1,518	1,518
Prepaid charter and deferred revenue		8,954	3,365
Amount due to related parties (Note 9)		765	848
Total current liabilities		68,176	65,536
Long-term liabilities:
Long-term debt (Notes 6 and 7)	[1]	586,332	619,187
Derivative liabilities (Notes 5 and 6)		4,132	1,232
Contract liabilities		8,619	9,757
Deferred tax liabilities (Note 8)		957	877
Other long-term liabilities		1,427	2,543
Total liabilities		669,643	699,132
Commitments and contingencies (Note 10)
Partners' capital:
General partner interest		10,189	10,295
Total partners' capital		517,234	520,770
Total liabilities and equity		1,186,877	1,219,902
Common Units [Member]
Partners' capital:
Common and subordinated unitholders		507,045	411,317
Total partners' capital		$ 507,045	411,317
Subordinated Units [Member]
Partners' capital:
Common and subordinated unitholders			99,158
Total partners' capital			$ 99,158

[1] Effective January 1, 2016, the Partnership implemented ASU 2015-03, Interest - Imputation of Interest (Subtopic 835-30), Simplifying the Presentation of Debt Issuance Costs, which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability rather than as an asset. The recognition and measurement guidance for debt issuance costs is not affected. Therefore, these costs will continue to be amortized as interest expense using the effective interest method. The new guidance is applied retrospectively for all periods presented. As of September 30, 2016 and December 31, 2015 the carrying amount of the deferred debt issuance cost was $3.3 million and $4.0 million, respectively.

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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Deferred debt issuance cost	$ 3.3	$ 4.0

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Condensed Consolidated Statements of Changes in Partners' Capital - USD ($) $ in Thousands	Total	Common Units [Member]	Subordinated Units [Member]	General Partner Unit [Member]	Accumulated Other Comprehensive Income [Member]
Beginning Balance at Dec. 31, 2014	$ 419,365	$ 307,544	$ 103,680	$ 8,141
Net income	22,875	13,596	8,851	428
Other comprehensive income	0	0	0	0	$ 0
Cash distributions	(38,261)	(23,399)	(14,120)	(742)
Proceeds from public offering	116,924	114,500		2,424
Offering cost (Note 13)	(293)	(288)		(5)
Ending Balance at Sep. 30, 2015	520,610	411,953	98,411	10,246
Beginning Balance at Dec. 31, 2015	520,770	411,317	99,158	10,295
Net income	41,598	35,655	5,052	891
Other comprehensive income	0	0	0	0	$ 0
Cash distributions	(45,134)	(34,049)	(10,088)	(997)
Conversion of subordinated units to common units		94,123	$ (94,123)
Ending Balance at Sep. 30, 2016	$ 517,234	$ 507,045		$ 10,189

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Condensed Consolidated Statements of Changes in Partners' Capital (Parenthetical) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($) shares
Common Units [Member]
Common units issued | shares	5,000,000
Underwriting discount | $	$ 4,300

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows provided by operating activities:
Net income	$ 41,598	$ 22,875
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation	41,725	35,380
Amortization of contract intangibles / liabilities	(1,138)	(1,138)
Amortization of deferred revenue	(1,257)	(1,436)
Amortization of deferred debt issuance cost	883	859
Drydocking expenditure	(2,595)
Goodwill impairment charge		6,217
Income tax expense	9	6
Income taxes paid	(241)	(336)
Unrealized loss (gain) on derivative instruments	(568)	5,254
Unrealized loss (gain) on foreign currency transactions	30	18
Changes in operating assets and liabilities
Decrease (increase) in amounts due from related parties	(11)	915
Decrease (increase) in inventories	90	248
Decrease (increase) in other current assets	344	(2,239)
Increase (decrease) in trade accounts payable	(565)	(554)
Increase (decrease) in accrued expenses	79	730
Decrease (increase) in accrued revenue	(921)
Increase (decrease) in prepaid revenue	5,730	(1,503)
Increase (decrease) in amounts due to related parties	(82)	(1,526)
Net cash provided by operating activities	83,110	63,770
Cash flows from investing activities:
Disposals (additions) to vessel and equipment	(849)	(1,193)
Net cash used in investing activities	(849)	(38,036)
Cash flows from financing activities:
Proceeds from long-term debt	5,000
Repayment of long-term debt	(38,221)	(55,439)
Repayment of long-term debt from related parties		(12,000)
Payments of debt issuance cost	(174)	(8)
Cash distribution	(45,134)	(38,261)
Proceeds from public offering, net of underwriters' discount		116,924
Offering cost		(293)
Net cash provided by (used in) financing activities	(78,529)	10,923
Effect of exchange rate changes on cash	77	(206)
Net increase in cash and cash equivalents	3,732	36,451
Cash and cash equivalents at the beginning of the period	23,573	30,746
Cash and cash equivalents at the end of the period	$ 27,382	67,197
Dan Sabia [Member]
Cash flows from investing activities:
Payments for acquisition, net of cash acquired		$ (36,843)

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Description of Business

9 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Description of Business

1) Description of Business

KNOT Offshore Partners LP (the “Partnership”) is a publicly traded Marshall Islands limited partnership initially formed for the purpose of acquiring 100% ownership interests in four shuttle tankers owned by Knutsen NYK Offshore Tankers AS (“KNOT”) in connection with the Partnership’s initial public offering of common units (the “IPO”), which was completed in April 2013.

As of September 30, 2016, the Partnership had a fleet of ten shuttle tankers, the Windsor Knutsen, the Bodil Knutsen, the Recife Knutsen, the Fortaleza Knutsen, the Carmen Knutsen, the Hilda Knutsen, the Torill Knutsen, the Dan Cisne, the Dan Sabia and the Ingrid Knutsen, each referred to as a “Vessel” and, collectively, as the “Vessels.” The Vessels operate under fixed charter contracts to charterers. The time charter for the Windsor Knutsen expires in 2017 and the charterer has six one-year extension options. The time charter for the Bodil Knutsen expires in 2019 and contains customer options for extension through 2024. The Recife Knutsen and the Fortaleza Knutsen are under bareboat charter contracts that expire in 2023. The time charter for the Carmen Knutsen expires in 2023 and contains customer options for extension through 2026. The time charters for the Hilda Knutsen and the Torill Knutsen each expire in 2018 and contain a customer option for extension through 2023. The Dan Cisne and the Dan Sabia are under bareboat charter contracts that expire in 2023 and 2024, respectively. The time charter for the Ingrid Knutsen expires in 2024 and contains customer options for extension through 2029.

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Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2) Summary of Significant Accounting Policies

(a) Basis of Preparation

The accompanying unaudited condensed consolidated interim financial statements are prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”) for interim financial information. All intercompany balances and transactions are eliminated. The unaudited condensed consolidated financial statements do not include all the disclosures and information required for a complete set of annual financial statements; and, therefore, these unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2015, which are included in the Partnership’s Annual Report on Form 20-F (the “2015 20-F”).

Under the Partnership’s First Amended and Restated Agreement of Limited Partnership (the “Partnership Agreement”), KNOT Offshore Partners GP LLC, a wholly owned subsidiary of KNOT, and the general partner of the Partnership (the “General Partner”), has irrevocably delegated to the Partnership’s board of directors the power to oversee and direct the operations of, manage and determine the strategies and policies of the Partnership. During the period from the Partnership’s IPO in April 2013 until the time of the Partnership’s first annual general meeting (“AGM”) on June 25, 2013, the General Partner retained the sole power to appoint, remove and replace all members of the Partnership’s board of directors. From the first AGM, four of the seven board members became electable by the common unitholders and accordingly, from this date, KNOT, as the owner of the General Partner, no longer retains the power to control the Partnership’s board of directors and, hence, the Partnership. As a result, the Partnership is no longer considered to be under common control with KNOT and as a consequence, the Partnership will not account for any vessel acquisitions from KNOT after June 25, 2013 as a transfer of equity interests between entities under common control.

(b) Significant accounting policies

The accounting policies adopted in the preparation of the unaudited condensed consolidated interim financial statements are consistent with those followed in the preparation of the Partnership’s audited consolidated financial statements for the year ended December 31, 2015, as contained in the Partnership’s 2015 20-F.

(c) Accounting pronouncement not yet adopted

In February 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-02, Leases (Topic 842). The update requires an entity to recognize right-of-use assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. It also offers specific accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing and uncertainty of cash flows arising from leases. The guidance will be effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years and early adoption is permitted. The Partnership is in the process of evaluating the impact of this standard update on its consolidated financial statements and related disclosures.

In May 2014, the FASB and the International Accounting Standards Board (IASB) issued a comprehensive revenue recognition standard that will supersede existing revenue guidance under US GAAP and IFRS, ASU 2014-09, Revenue from Contracts with Customers, (or ASU 2014-09) for U.S. GAAP. ASU 2014-09 will require an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update creates a five-step model that requires an entity to exercise judgment when considering the terms of the contract(s) which include (i) identifying the contract(s) with the customer, (ii) identifying the separate performance obligations in the contract, (iii) determining the transaction price, (iv) allocating the transaction price to the separate performance obligations, and (v) recognizing revenue when each performance obligation is satisfied. In August 2015, FASB issued an ASU (ASU 2015-14) to defer by one year the effective dates of its new revenue recognition standard for public and non-public entities reporting under US GAAP. As a result, the standard (ASU 2014-09) will be effective for public entities for annual reporting periods beginning after December 15, 2017 (2018 for calendar-year public entities) and interim periods therein. ASU 2014-09 shall be applied retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. Early adoption is not permitted under U.S. GAAP. The Partnership is evaluating the effect of adopting this new accounting guidance.

In August 2014, FASB issued Presentation of Financial Statements – Going Concern (Subtopic 205-40), Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (ASU 2014-15). ASU 2014-15 requires management to evaluate whether there are conditions and events that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the financial statements are issued (or available to be issued when applicable) and, if so, disclose that fact. Management will be required to make this evaluation for both annual and interim reporting periods, if applicable. Management also is required to evaluate and disclose whether its plans alleviate that doubt. The standard is effective for annual periods after December 15, 2016 and interim periods within annual periods beginning after December 15, 2016. Early adoption is permitted. The Partnership does not expect the adoption of this standard to have a material impact on the consolidated financial statements.

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Segment Information

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Segment Information

3) Segment Information

The Partnership has not presented segment information as it considers its operations to occur in one reportable segment, the shuttle tanker market. As of September 30, 2016, the Partnership’s fleet consisted of ten vessels and operated under six time charters and four bareboat charters. As of September 30, 2015, the Partnership’s fleet consisted of nine vessels and operated under five time charters and four bareboat charters. Under the time charters and bareboat charters, the charterer, not the Partnership, controls the choice of which trading areas the applicable Vessel will serve. Accordingly, the Partnership’s management, including the chief operating decision makers, does not evaluate performance according to geographical region.

The following table presents revenues and percentage of consolidated revenues for customers that accounted for more than 10% of the Partnership’s consolidated revenues during the nine months ended September 30, 2016 and 2015. All of these customers are subsidiaries of major international oil companies, except KNOT, which was chartering the Windsor Knutsen until she was redelivered to Royal Dutch Shell (“Shell”), formerly BG Group, in October 2015.

	Three Months Ended September 30,								Nine Months Ended September 30,
(U.S. Dollars in thousands)	2016				2015				2016				2015
Fronape International Company, a subsidiary of Petrobras Transporte S.A.	$	11,368	26	%		11,368	29	%	$	33,866	27	%		29,250	26	%
Eni Trading and Shipping S.pA		11,816	27	%		11,810	30	%		35,191	27	%		35,000	31	%
Statoil ASA		5,809	13	%		5,864	15	%		16,038	13	%		17,345	15	%
Repsol Sinopec Brasil, S.A., a subsidiary of Repsol Sinopec Brasil, B.V.		4,793	11	%		5,126	13	%		14,553	11	%		15,212	14	%
Brazil Shipping I Limited, a subsidiary of Shell		5,210	13	%		—	—			15,344	12	%		—	—
Standard Marine Tønsberg, a subsidiary of ExxonMobil		4,394	10	%		—	—			13,087	10	%		—	—
Knutsen NYK Offshore Tankers AS		—	—			5,113	13	%		—	—			15,526	14	%

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Goodwill Impairment Charge

9 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill Impairment Charge

4) Goodwill Impairment Charge

During the three months ended June 30, 2015, the Partnership concluded that indicators of impairment were present due to a significant reduction in the price of the Partnership’s common units during the quarter. Consequently, the Partnership performed an interim vessel and goodwill impairment analysis as of June 30, 2015 on its fleet, concluding that there was no impairment to the vessels’ values. However, the Partnership determined that the carrying value of the goodwill exceeded its fair value. The impairment charge relates mainly to capitalized goodwill which arose in 2008 when the Partnership’s predecessor acquired the Windsor Knutsen and three other vessels then under construction, in a transaction that was then accounted for as a step transaction. As a result, a goodwill impairment charge of $6.2 million was recognized in the condensed consolidated financial statements for the three and six months ended June 30, 2015. The fair value was determined using the present value of the expected future cash flows discounted at a rate equivalent to a market participant’s weighed average cost of capital. The estimates and assumptions regarding expected future cash flows and appropriate discount rates are in part based upon existing contracts, future shuttle tanker rates, historical experience, financial forecasts and industry trends and conditions. This non-cash impairment charge, which does not affect the Partnership’s operations, cash flows, liquidity, or any of its loan covenants, reduced the Partnership’s remaining goodwill balance to zero as of June 30, 2015.

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Derivative Instruments

9 Months Ended

Sep. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

5) Derivative Instruments

The unaudited condensed consolidated interim financial statements include the results of interest rate swap contracts to manage the Partnership’s exposure related to changes in interest rates on its variable rate debt instruments and the results of foreign exchange forward contracts to manage its exposure related to changes in currency exchange rates on its operating expenses, mainly crew expenses, in currency other than U.S. Dollars and on its contract obligations. The Partnership does not apply hedge accounting for derivative instruments. The Partnership does not speculate using derivative instruments.

By using derivative financial instruments to economically hedge exposures to changes in interest rates, the Partnership exposes itself to credit risk and market risk. Derivative instruments that economically hedge exposures are used for risk management purposes, but these instruments are not designated as hedges for accounting purposes. Credit risk is the failure of the counterparty to perform under the terms of the derivative instrument. When the fair value of a derivative instrument is positive, the counterparty owes the Partnership, which creates credit risk for the Partnership. When the fair value of a derivative instrument is negative, the Partnership owes the counterparty, and, therefore, the Partnership is not exposed to the counterparty’s credit risk in those circumstances. The Partnership minimizes counterparty credit risk in derivative instruments by entering into transactions with major banking and financial institutions. The derivative instruments entered into by the Partnership do not contain credit risk-related contingent features. The Partnership has not entered into master netting agreements with the counterparties to its derivative financial instrument contracts.

Market risk is the adverse effect on the value of a derivative instrument that results from a change in interest rates, currency exchange rates or commodity prices. The market risk associated with interest rate contracts is managed by establishing and monitoring parameters that limit the types and degree of market risk that may be undertaken.

The Partnership assesses interest rate risk by monitoring changes in interest rate exposures that may adversely impact expected future cash flows and by evaluating economical hedging opportunities.

The Partnership’s variable interest rate mortgage debt obligations expose the Partnership to variability in interest payments due to changes in interest rates. The Partnership believes that it is prudent to limit the variability of a portion of its interest payments. To meet this objective, the Partnership entered into London Interbank Offered Rate (“LIBOR”)-based interest rate swap contracts to manage fluctuations in cash flows resulting from changes in the benchmark interest rate of LIBOR. These swaps change the variable rate cash flow exposure on the mortgage debt obligations to fixed cash flows. Under the terms of the interest rate swap contracts, the Partnership receives LIBOR-based variable interest rate payments and makes fixed interest rate payments, thereby creating the equivalent of fixed rate debt for the notional amount of its debt hedged.

As of September 30, 2016, the Partnership had entered into various interest swap agreements for a total notional amount of $407.7 million to hedge against the interest rate risks of its variable rate borrowings. Under the terms of the interest rate swap agreements, the Partnership receives interest based on three or six month LIBOR and pays a weighted average interest rate of 1.54%.

As of September 30, 2016 and December 31, 2015, the total notional amount of the Partnership’s outstanding interest rate swap contracts that were entered into in order to hedge outstanding or forecasted debt obligations were $407.7 million and $410.0 million, respectively. As of September 30, 2016 and December 31, 2015, the carrying amount of the interest rate swaps contracts were net liabilities of $6.8 million and $3.6 million, respectively. See Note 6 —Fair Value Measurements.

Changes in the fair value of interest rate swap contracts are reported in realized and unrealized gain (loss) on derivative instruments in the same period in which the related interest affects earnings.

The Partnership and its subsidiaries utilize the U.S. Dollar as their functional and reporting currency, because all of their revenues and the majority of their expenditures, including the majority of their investments in vessels and their financing transactions, are denominated in U.S. Dollars. Payment obligations in currencies other than the U.S. Dollar, and in particular operating expenses in Norwegian Kroner (NOK), expose the Partnership to variability in currency exchange rates. The Partnership believes that it is prudent to limit the variability of a portion of its currency exchange exposure. To meet this objective, the Partnership entered into foreign exchange forward contracts to manage fluctuations in cash flows resulting from changes in the exchange rates towards the U.S. Dollar. The agreements change the variable exchange rate to fixed exchange rates at agreed dates.

As of September 30, 2016 and December 31, 2015, the total contract amount in foreign currency of the Partnership’s outstanding foreign exchange forward contracts that were entered into to economically hedge outstanding future payments in currencies other than the U.S. Dollar were NOK 293.8 million and NOK 289.8 million, respectively. As of September 30, 2016 and December 31, 2015, the carrying amount of the Partnership’s foreign exchange forward contracts was an asset of $1.7 million and a liability of $2.1 million, respectively. See Note 6 —Fair Value Measurements.

The following table presents the realized and unrealized gains and losses that are recognized in earnings as net gain (loss) for derivative instruments for the three and nine months ended September 30, 2016 and 2015:

	Three Months Ended September 30,						Nine Months Ended September 30,
(US $ in thousands)	2016			2015			2016			2015
Realized (loss)
Interest rate swap contracts	$	(671	)	$	(989	)	$	(2,847	)	$	(3,348	)
Foreign exchange forward contracts		(152	)		(3,238	)		(468	)		(3,238	)
Unrealized gain (loss)
Interest rate swap contracts		2,744			(4,032	)		(3,122	)		(5,866	)
Foreign exchange forward contracts		1,692			1,789			3,690			612
Total realized and unrealized (loss) gain		3,613			(6,470	)		(2,747	)		(11,840	)

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Fair Value Measurements

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurements

6) Fair Value Measurements

(a) Fair Value of Financial Instruments

The following table presents the carrying amounts and estimated fair values of the Partnership’s financial instruments as of September 30, 2016 and December 31, 2015. Fair value is defined as the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.

	September 30, 2016				December 31, 2015
(U.S. Dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial assets:
Cash and cash equivalents	$	27,382	$	27,382	$	23,573	$	23,573
Non-current derivative assets:
Interest rate swap contracts		—		—		695		695
Foreign exchange forward contracts		1,645		1,645		—		—
Financial liabilities:
Current derivative liabilities:
Interest rate swap contracts		2,621		2,621		3,799		3,799
Foreign exchange forward contracts		—		—		1,339		1,339
Non-current derivative liabilities:
Interest rate swap contracts		4,132		4,132		527		527
Foreign exchange forward contracts		—		—		705		705
Long-term debt, current and non-current		635,209		635,209		667,772		667,772

The carrying amounts shown in the table above are included in the condensed consolidated balance sheets under the indicated captions. The carrying value of trade accounts receivable, trade accounts payable and receivables/payables to owners and affiliates approximate their fair value.

The fair values of the financial instruments shown in the above table as of September 30, 2016 and December 31, 2015 represent the amounts that would be received to sell those assets or that would be paid to transfer those liabilities in an orderly transaction between market participants at that date. Those fair value measurements maximize the use of observable inputs. However, in situations where there is little, if any, market activity for the asset or liability at the measurement date, the fair value measurement reflects the Partnership’s own judgment about the assumptions that market participants would use in pricing the asset or liability. Those judgments are developed by the Partnership based on the best information available in the circumstances, including expected cash flows, appropriately risk-adjusted discount rates and available observable and unobservable inputs.

The following methods and assumptions were used to estimate the fair value of each class of financial instruments:

• Cash and cash equivalents and restricted cash: The fair value of the Partnership’s cash balances approximates the carrying amounts due to the current nature of the amounts.

• Foreign exchange forward contracts: The fair value is calculated using mid-rates (excluding margins) as determined by counterparties based on available market rates as of the balance sheet date. The fair value is discounted from the value at expiration to the current value of the contracts.

• Interest rate swap contracts: The fair value of interest rate swap contracts is determined using an income approach using the following significant inputs: the term of the swap, the notional amount of the swap, discount rates interpolated based on relevant LIBOR swap curves and the rate on the fixed leg of the swap.

• Long-term debt: With respect to long-term debt measurements, the Partnership uses market interest rates and adjusts that rate for all necessary risks, including its own credit risk. In determining an appropriate spread to reflect its credit standing, the Partnership considered interest rates currently offered to KNOT for similar debt instruments of comparable maturities by KNOT’s and the Partnership’s bankers as well as other banks that regularly compete to provide financing to the Partnership.

(b) Fair Value Hierarchy

The following table presents the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a recurring basis (including items that are required to be measured at fair value or for which fair value is required to be disclosed) as of September 30, 2016 and December 31, 2015:

			Fair Value Measurements at Reporting Date Using
(U.S. Dollars in thousands)	September 30, 2016		Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	27,382	$	27,382	$	—	$	—
Non-current derivative assets:
Interest rate swap contracts		—		—		—		—
Foreign exchange forward contracts		1,645		—		1,645		—
Financial liabilities:
Current derivative liabilities:
Interest rate swap contracts		2,621		—		2,621		—
Foreign exchange forward contracts		—		—		—		—
Non-current derivative liabilities:
Interest rate swap contracts		4,132		—		4,132		—
Long-term debt, current and non-current		635,209		—		635,209		—

			Fair Value Measurements at Reporting Date Using
(U.S. Dollars in thousands)	December 31, 2015		Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	23,573	$	23,573	$	—	$	—
Non-current derivative assets:
Interest rate swap contracts		695		—		695		—
Financial liabilities:
Current derivative liabilities:
Interest rate swap contracts		3,799		—		3,799		—
Foreign exchange forward contracts		1,339		—		1,339		—
Non-current derivative liabilities:
Interest rate swap contracts		527				527		—
Foreign exchange forward contract		705				705
Long-term debt, current and non-current		667,772		—		667,772		—

The Partnership’s accounting policy is to recognize transfers between levels of the fair value hierarchy on the date of the event or change in circumstances that caused the transfer. There were no transfers into or out of Level 1, Level 2 or Level 3 as of September 30, 2016 and December 31, 2015.

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Long-Term Debt

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Long-Term Debt

7) Long-Term Debt

As of September 30, 2016 and December 31, 2015, the Partnership had the following debt amounts outstanding:

(U.S. Dollars in thousands)	Vessel	September 30, 2016		December 31, 2015
$220 million loan facility	Windsor Knutsen, Bodil Knutsen, Carmen Knutsen	$	184,643	$	196,429
$140 million loan facility	Fortaleza Knutsen & Recife Knutsen		120,313		126,875
$117 million loan facility	Hilda Knutsen		78,103		81,797
$117 million loan facility	Torill Knutsen		79,337		83,033
$172.5 million loan facility	Dan Cisne, Dan Sabia		105,139		109,339
$77.5 million loan facility	Ingrid Knutsen		70,934		74,217
Total long-term debt			638,469		671,690
Less: current installments			50,084		49,684
Less: unamortized deferred loan issuance costs			1,207		1,149
Current portion of long-term debt			48,877		48,535
Amounts due after one year			588,384		622,006
Less: unamortized deferred loan issuance costs			2,052		2,819
Long-term debt less current installments and unamortized deferred loan issuance costs		$	586,332	$	619,187

The Partnership’s outstanding debt of $638.5 million as of September 30, 2016 is repayable as follows:

(US $ in thousands)	Period repayment		Balloon repayment
Remainder of 2016	$	16,463	$	—
2017		50,084		—
2018		48,495		154,927
2019		28,582		237,678
2020		17,650		—
2021 and thereafter		71,650		12,940
Total	$	232,924	$	405,545

As of September 30, 2016, the interest rates on the Partnership’s loan agreements (other than tranche two of the $77.5 million loan facility) were the London Interbank Offered Rate (“LIBOR”) plus a fixed margin ranging from 2.125% to 2.5%. On the export credit loan of $55.1 million which is tranche two of the $77.5 million loan facility secured by the Ingrid Knutsen, the annual rate is 3.85% composed of a 2.5% bank facility rate plus a commission of 1.35% to the export credit guarantor. The guarantee commission of 1.35% is classified as other finance expense.

On June 30, 2016, the Partnership’s subsidiaries KNOT Shuttle Tankers 18 AS, KNOT Shuttle Tankers 17 AS and Knutsen Shuttle Tankers 13 AS, as borrowers, entered into an amended and restated senior secured credit facility (the “Amended Senior Secured Loan Facility”), which amended the Partnership’s existing $240 million senior syndicated secured loan facility secured by the shuttle tankers Bodil Knutsen, Carmen Knutsen and Windsor Knutsen. The Amended Senior Secured Loan Facility includes a new revolving credit facility tranche of $15 million, bringing the total revolving credit commitments under the facility to $35 million. The new revolving credit facility matures in June 2019, bears interest at LIBOR plus a fixed margin of 2.5% and has a commitment fee equal to 40% of the margin of the revolving facility tranche calculated on the daily undrawn portion of such tranche. The other material terms from the original $240 million facility remain unaltered, including the margin on the original $20 million revolving credit facility, which remains 2.125%.

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Income Taxes

9 Months Ended

Sep. 30, 2016

Income Tax Disclosure [Abstract]

Income Taxes

8) Income Taxes

Components of Current and Deferred Tax Expense

After the reorganization of the Partnership’s predecessor’s activities into the new group structure in February 2013, all profit from continuing operations in Norway is taxable within the Norwegian Tonnage Tax regime (“the tonnage tax regime”). The consequence of the reorganization was a one-time entrance tax into the tonnage tax regime due to the Partnership’s acquisition of the shares in the subsidiary that owns the Fortaleza Knutsen and the Recife Knutsen. Under the tonnage tax regime, the tax is based on the tonnage of the vessel and operating income is tax free. The net financial income and expense remains taxable as ordinary income tax for entities subject to the tonnage tax regime. For the portion of activities subject to the tonnage tax regime, tonnage taxes are classified as vessel operating expenses while the current and deferred taxes arising on net financial income and expense are reflected as income tax expense in the consolidated financial statements.

The total amount of the entrance tax was estimated to be approximately $3.0 million, which was recognized in the three months ended March 31, 2013. The entrance tax is payable over several years and is calculated by multiplying the tax rate by the declining balance of the gain, which will decline by 20% each year. The amount payable will be affected by the change in tax rate which was reduced to 25% in 2016 from 27% in 2014 and from 28% in 2013 and the fluctuation in currency rates. Approximately $0.2 and $0.1 million of the entrance tax was paid during the first and second quarter of 2015, respectively and $0.2 million was paid during the first quarter of 2016. UK income tax is presented as income taxes payable, while $1.0 million is presented as non-current deferred taxes payable. Profit and loss from continuing operation before income taxes was taxable to Norway and significant components of current and deferred income tax expense attributable to income from continuing operations for the three and nine months ended September 30, 2016 and 2015 as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
(US $ in thousands)	2016			2015			2016			2015
Income before income taxes	$	19,360		$	8,802		$	41,607		$	22,881
Income tax (expense)		(3	)		—			(9	)		(6	)
Effective tax rate		0	%		0	%		0	%		0	%

The Partnership records a valuation allowance for deferred tax assets when it is more likely than not that some of or all of the benefit from the deferred tax assets will not be realized. In assessing the realizability of deferred tax assets, which relates to financial loss carry forwards and other deferred tax assets within the tonnage tax regime, the Partnership considers whether it is more-likely-than-not that some portion or all of the deferred tax assets will not be realized taking into account all the positive and negative evidence available. As of September 30, 2016 and December 31, 2015 there are no deferred tax assets recognized.

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Related Party Transactions

9 Months Ended

Sep. 30, 2016

Related Party Transactions [Abstract]

Related Party Transactions

9) Related Party Transactions

(a) Related Parties

Net expenses (income) from related parties included in the unaudited condensed consolidated statements of operations for the three and nine months ended September 30, 2016 and 2015 are as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(US $ in thousands)	2016		2015		2016		2015
Statements of operations:
Time charter and bareboat revenues:
Charter revenues from KNOT (1)	$	—	$	5,113	$	—	$	15,526
Other income:
Guarantee income from KNOT to vessel(2)		196		—		577		—
Operating expenses:
Technical and operational management fee from KNOT Management to Vessels (3)		733		580		2,198		1,743
General and administrative expenses:
Administration fee from KNOT Management (4)		327		306		960		700
Administration fee from KOAS (4)		95		97		286		267
Administration fee from KOAS UK (4)		35		38		106		112
Administration and management fee from KNOT (5)		50		46		152		118
Finance income (expense):
Interest expense charged from KNOT (6)		—		—		—		(268	)
Total		1,044		4,046		3,125		12,318

(US $ in thousands)	At September 30, 2016		At December 31, 2015
Balance Sheet:
Vessels:
Drydocking supervision fee from KNOT (7)	$	38	$	—
Drydocking supervision fee from KOAS (7)		16		—
Total		54		—

(1) Charter revenues from KNOT: Pursuant to the Omnibus Agreement KNOT entered into with the Partnership at the time of the IPO, KNOT agreed to guarantee the payments of the hire rate under the initial charters of each of the Bodil Knutsen and the Windsor Knutsen for a period of five years from the closing date of the IPO. Shell, the charterer of the Windsor Knutsen , did not exercise its option to extend the Windsor Knutsen time charter after the expiration of its initial term, and on July 29, 2014 KNOT and the Partnership entered into a time charter for the vessel at a rate of hire that would have been in effect during the option period under the previous Shell time charter. This charter was effective until the Windsor Knutsen commenced in October 2015 on a new Shell time charter. See Note 9(b)—Related Party Transactions—Guarantees and Indemnifications.

(2) Guarantee income from KNOT: Pursuant to the Omnibus Agreement, KNOT agreed to guarantee the payments of the hire rate under the initial charter of the Bodil Knutsen and the Windsor Knutsen for a period of five years from the closing date of the IPO. In October 2015, the Windsor Knutsen commenced on a new Shell time charter with a hire rate below the hire rate in the initial charter. The difference between the new hire rate and the initial rate is paid by KNOT. See Note 9(b)—Related Party Transactions—Guarantees and Indemnifications.

(3) Technical and operational management fee from KNOT Management to Vessels: KNOT Management AS (“KNOT Management”) provides technical and operational management of the vessels on time charter including crewing, purchasing, maintenance and other operational services. In addition, there is also a charge for 24-hour emergency response services provided by KNOT for all vessels managed by KNOT.

(4) Administration fee from KNOT Management and Knutsen OAS Shipping AS (“KOAS”) and Knutsen OAS (UK) Ltd. (“KOAS UK”): Administration costs include the compensation and benefits of KNOT Management’s management and administrative staff as well as other general and administration expenses. Some benefits are also provided by KOAS and KOAS UK. Net administration costs are total administration cost plus a 5% margin, reduced for the total fees for services delivered by the administration staffs and the estimated shareholder costs for KNOT that have not been allocated. As such, the level of net administration costs as a basis for the allocation can vary from year to year based on the administration and financing services offered by KNOT to all the vessels in its fleet each year. KNOT Management also charges each subsidiaries a fixed annual fee for the preparation of the statutory financial statement.

(5) Administration and management fee from KNOT: For bareboat charters, the shipowner is not responsible for providing crewing or other operational services and the customer is responsible for all vessel operating expenses and voyage expenses. However, each of the vessels under bareboat charters are subject to management and administration agreements with either KNOT Management or KNOT Management Denmark, pursuant to which these companies provide general monitoring services for the vessels in exchange for an annual fee.

(6) Interest expense charged from KNOT: KNOT invoiced interest (expense) income for any outstanding payables to (receivable from) owners and affiliates to the vessel-owning subsidiaries.

(7) Drydocking supervision fee from KNOT and KOAS: KNOT and KOAS provide supervision and hire out service personnel during drydocking of the vessels. The fee is calculated as a daily fixed fee.

(b) Guarantees and Indemnifications

Pursuant to the Omnibus Agreement, KNOT agreed to guarantee the payments of the hire rate under the initial charters of each of the Bodil Knutsen and the Windsor Knutsen for a period of five years from the closing date of the IPO.

In April 2014, the Partnership was notified that Shell would not exercise its option to extend the Windsor Knutsen time charter after the expiration of its initial term. The vessel was re-delivered on July 28, 2014. In order to comply with its obligations under the Omnibus Agreement, on July 29, 2014, KNOT and the Partnership entered into a time charter for the vessel at a rate of hire that would have been in effect during the option period under the previous Shell time charter. This charter was effective until the new Shell time charter commenced in October, 2015.

Under the Omnibus Agreement, KNOT has agreed to indemnify the Partnership until April 15, 2018, against certain environmental and toxic tort liabilities with respect to certain assets that KNOT contributed or sold to the Partnership to the extent arising prior to the time they were contributed or sold. However, claims are subject to a deductible of $0.5 million and an aggregate cap of $5 million.

In addition, pursuant to the Omnibus Agreement, KNOT agreed to indemnify the Partnership for any defects in title to certain assets contributed or sold to the Partnership and any failure to obtain, prior to April 15, 2013, certain consents and permits necessary to conduct the Partnership’s business, which liabilities arise within three years after the closing of the IPO on April 15, 2013.

(c) Transactions with Management and Directors

See Note 9(a) for a discussion of the allocation principles for KNOT’s administrative costs, including management and administrative staff, included in the consolidated statements of operations.

(d) Amounts Due from (to) Related Parties

Balances with related parties consisted of the following:

(U.S. Dollars in thousands)	At September 30,  2016		At December 31,  2015
Balance Sheets:
Trading balances due from KOAS	$	28	$	10
Trading balances due from KNOT and affiliates		41		48
Amount due from related parties	$	69	$	58
Trading balances due to KOAS	$	586	$	448
Trading balances due to KNOT and affiliates		179		400
Amount due to related parties	$	765	$	848

Amounts due from (to) related parties are unsecured and intended to be settled in the ordinary course of business. They primarily relate to vessel management and other fees due to KNOT and KOAS.

(e) Trade accounts payables

Trade accounts payables to related parties are included in total trade accounts payables in the balance sheet. The balances to related parties consisted of the following:

(U.S. Dollars in thousands)	At September 30, 2016		At December 31, 2015
Balance Sheets:
Trading balances due to KOAS	$	402	$	651
Trading balances due to KNOT and affiliates		355		360
Trade accounts payables to related parties	$	757	$	1,011

(f) Acquisitions from KNOT

On June 30, 2015, the Partnership acquired KNOT’s 100% interest in KNOT Shuttle Tankers 21 AS, the company that owns and operates the Dan Sabia. This acquisition was accounted for as an acquisition of a business.

On October 15, 2015, the Partnership acquired KNOT’s 100% interest in Knutsen NYK Shuttle Tankers 16 AS, the company that owns and operates the Ingrid Knutsen. This acquisition was accounted for as an acquisition of a business.

The board of directors of the Partnership (the “Board”) and the conflicts committee of the Board (the “Conflicts Committee”) approved the purchase price for each transaction described above. The Conflicts Committee retained a financial advisor to assist with its evaluation of each of the transactions. See Note—12 Business Acquisitions.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

10) Commitments and Contingencies

Assets Pledged

As of September 30, 2016 and December 31, 2015, Vessels with a book value of $1,155 million and $1,193 million, respectively, were pledged as security held as guarantee for the Partnership’s long-term debt and interest rate swap obligations. See Note 5 —Derivative Instruments and Note 7 —Long-Term Debt.

Claims and Legal Proceedings

From time to time, the Partnership is involved in various claims and legal actions arising in the ordinary course of business. In the opinion of management, the ultimate disposition of these matters will not have a material adverse effect on the consolidated financial position, results of operations or cash flows.

Insurance

The Partnership maintains insurance on all the Vessels to insure against marine and war risks, which include damage to or total loss of the Vessels, subject to deductible amounts that average $0.150 million per Vessel, and loss of hire.

Under the loss of hire policies, the insurer will pay a compensation for the lost hire rate agreed in respect of each Vessel for each day, in excess of 14 deductible days, for the time that the Vessel is out of service as a result of damage, for a maximum of 180 days. In addition, the Partnership maintains protection and indemnity insurance, which covers third-party legal liabilities arising in connection with the Vessels’ activities, including, among other things, the injury or death of third-party persons, loss or damage to cargo, claims arising from collisions with other vessels and other damage to other third-party property, including pollution arising from oil or other substances. This insurance is unlimited, except for pollution, which is limited to $1 billion per vessel per incident. The protection and indemnity insurance is maintained through a protection and indemnity association, and as a member of the association, the Partnership may be required to pay amounts above budgeted premiums if the member claims exceed association reserves, subject to certain reinsured amounts. If the Partnership experiences multiple claims each with individual deductibles, losses due to risks that are not insured or claims for insured risks that are not paid, it could have a material adverse effect on the Partnership’s results of operations and financial condition.

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Earnings per Unit and Cash Distributions

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Earnings per Unit and Cash Distributions

11) Earnings per Unit and Cash Distributions

The calculations of basic and diluted earnings per unit (1) are presented below:

(US $ in thousands, except per unit data)	Three   Months Ended    September 30, 2016			Three   Months Ended    September 30, 2015			Nine   Months Ended    September 30, 2016			Nine   Months Ended    September 30, 2015
Net income attributable to the partners of KNOT Offshore Partners LP	$	19,357		$	8,802		$	41,598		$	22,875
Less: Distributions paid (2)		15,027			15,110			45,149			41,910
Under (over) distributed earnings		(4,330	)		(6,308	)		(3,551	)		(19,035	)
Under (over) distributed earnings attributable to:
Common unitholders (3)		(4,243	)		(4,247	)		(3,480	)		(12,816	)
Subordinated unitholders (3)		—			(1,935	)		—			(5,838	)
General Partner		(87	)		(126	)		(72	)		(381	)
Weighted average units outstanding (basic and diluted) (in thousands):
Common unitholders		27,194			18,807			22,817			16,005
Subordinated unitholders		—			8,568			4,377			8,568
General Partner		559			559			559			467
Earnings per unit (basic and diluted):
Common unitholders	$	0.697		$	0.294		$	1.563		$	0.850
Subordinated unitholders (4)		—			0.362			1.154			1.033
General Partner		0. 697			0.294			1.594			0.915
Cash distributions declared and paid in the period per unit (5)		0.520			0.510			1.560			1.510
Subsequent event: Cash distributions declared and paid per unit relating to the period (6)		0.520			0.520			0.520			0.520

(1) Earnings per unit have been calculated in accordance with the cash distribution provisions set forth in the Partnership’s Partnership Agreement.

(2) This refers to distributions made or to be made in relation to the period irrespective of the declaration and payment dates and based on the number of units outstanding at the record date. This includes cash distributions to the IDR holder (KNOT) for the three months ended September 30, 2016 and 2015 of $0.6 million and of $0.6 million, respectively, and for the nine months ended September 30, 2016 and 2015 of $1.8 million and of $1.5 million, respectively.

(3) On May 18, 2016 all subordinated units converted in to common units on a one-for-one basis.

(4) This includes the net income attributable to the IDR holder. The IDRs generally may not be transferred by KNOT until March 31, 2018. The net income attributable to IDRs for the three months ended September 30, 2016 and 2015 was $0.6 million and $0.6 million, respectively, and for the nine months ended September 30, 2016 and 2015 was $1.8 million and $1.5 million, respectively.

(5) Refers to cash distributions declared and paid during the period.

(6) Refers to cash distributions declared and paid subsequent to the period end.

As of September 30, 2016, 66.8% of the Partnership’s total number of units outstanding representing limited partner interests were held by the public (in the form of 18,536,226 common units, representing 68.2% of the Partnership’s common units) and 30.9% of such units were held by KNOT (in the form of 8,567,500 common units, representing 31.5% of the Partnership’s common units). In addition, KNOT, through its ownership of the General Partner, held the 2.01% general partner interest (in the form of 558,674 general partner units) and a 0.3% limited partner interest (in the form of 90,368 common units).

Earnings per unit is determined by dividing net income, after deducting the distribution paid or to be made in relation to the period, by the weighted-average number of units outstanding during the applicable period. The General Partner’s, common unitholders’ and subordinated unitholders’ interest in net income are calculated as if all net income was distributed according to the terms of the Partnership Agreement, regardless of whether those earnings would or could be distributed. The Partnership Agreement does not provide for the distribution of net income. Rather, it provides for the distribution of available cash, which is a contractually defined term that generally means all cash on hand at the end of each quarter less the amount of cash reserves established by the Board to provide for the proper conduct of the Partnership’s business, including reserves for maintenance and replacement capital expenditures and anticipated credit needs and capital requirements. In addition, KNOT, as the initial holder of all IDRs, has the right, at the time when there are no subordinated units outstanding and it has received incentive distributions at the highest level to which it is entitled (48.0% for each of the prior four consecutive fiscal quarters), to reset the initial cash target distribution levels at higher levels based on the distribution at the time of the exercise of the reset election. Unlike available cash, net income is affected by non-cash items, such as depreciation and amortization, unrealized gains and losses on derivative instruments and unrealized foreign currency gains and losses.

For a description of the provisions of the Partnership Agreement relating to cash distributions, please see Note 21 in the Partnership’s audited consolidated financial statements contained in the 2015 20-F.

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Business Acquisitions

9 Months Ended

Sep. 30, 2016

Business Combinations [Abstract]

Business Acquisitions

12) Business Acquisitions

In June 2015 and October 2015, the Partnership acquired from KNOT equity interests in certain subsidiaries which own and operate the Dan Sabia and the Ingrid Knutsen.

The Board and the Conflicts Committee approved the purchase price for each transaction. The Conflicts Committee retained a financial advisor to assist with its evaluation of each of the transactions. The details of each transaction are as follows:

(US $ in thousands)	Final Ingrid Knutsen October 15, 2015			Final Dan Sabia June 15, 2015
Purchase consideration (1)	$	12,863		$	41,186
Less: Fair value of net assets acquired:
Vessel and equipment (2)		115,000			103,389
Cash		4,744			4,343
Inventories		144			—
Others current assets		188			25
Amounts due from related parties		1			935
Long-term debt		(84,275	)		(64,470	)
Long-term debt from related parties		(20,253	)		—
Derivatives liabilities		—			(802	)
Trade accounts payable		(94	)		(4	)
Accrued expenses		(1,555	)		(335	)
Prepaid charter and deferred revenue		(762	)		(442	)
Amounts due to related parties		(275	)		(1,453	)
Sub total		12,863			41,186
Difference between the purchase price and fair value of net assets acquired	$	—		$	—
Goodwill		—			—
Difference between the purchase price and allocated values	$	—		$	—

(1) The purchase price is comprised of the following:

(US $ in thousands)	Final Ingrid Knutsen October 15, 2015		Final Dan Sabia June 15, 2015
Cash consideration paid to KNOT	$	10,472	$	38,531
Purchase price adjustments		2,391		2,655
Total purchase consideration	$	12,863	$	41,186

(2) Vessels and equipment includes allocation to dry docking for the Ingrid Knutsen of $1,263 and for the Dan Sabia of $389.

Dan Sabia

On June 15, 2015, the Partnership’s wholly owned subsidiary, KNOT Shuttle Tankers AS, acquired KNOT’s 100% interest in KNOT Shuttle Tankers 21 AS, the company that owns and operates the Dan Sabia. The purchase price was $103.0 million less assumed bank debt of $64.5 million and other purchase price adjustments of $2.7 million. The cash portion of the purchase price was financed with the proceeds from the Partnership’s public offering of 5,000,000 common units which closed on June 2, 2015. See Note 13 – Equity Offerings. The Partnership accounted for this acquisition as an acquisition of a business. The purchase price of the acquisition has been allocated to the identifiable assets acquired. The allocation of the purchase price to acquired identifiable assets was based on their fair values at the date of acquisition.

Revenue and profit contributions

The Dan Sabia business contributed revenues of $2.9 million and net income of $1.5 million to the Partnership for the period from June 15, 2015 to September 30, 2015.

The table below shows comparative summarized consolidated pro forma financial information for the Partnership for the nine months ended September 30, 2015, giving effect to the Partnership’s acquisition and financing of the Dan Sabia as if this acquisition had taken place on January 1, 2015.

(US $ in thousands)	Nine Months Ended      September 30, 2015
Revenue	$	116,984
Net income		23,840

Included in the pro forma adjustments are depreciation related to the purchase price allocation performed on the acquired identifiable assets as if the acquisitions had taken place on January 1, 2015. In addition, the pro forma adjustments include finance expenses related to the increased borrowings as if the acquisitions had taken place on January 1, 2015.

Ingrid Knutsen

On October 15, 2015, the Partnership’s wholly owned subsidiary, KNOT Shuttle Tankers AS, acquired KNOT’s 100% interest in Knutsen NYK Shuttle Tankers 16 AS, the company that owns and operates the Ingrid Knutsen. The purchase price was $115.0 million, less assumed bank debt of $104.5 million plus other purchase price adjustments of $2.4 million. The Partnership accounted for this acquisition as an acquisition of a business. The purchase price of the acquisition has been allocated to the identifiable assets acquired. The allocation of the purchase price to acquired identifiable assets was based on their fair values at the date of acquisition.

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Equity Offerings

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Equity Offerings

13) Equity Offerings

(US $ in thousands)	June 2015 Offering
Gross proceeds received (1)	$	121,224
Less: Underwriters’ discount		4,300
Less: Offering expenses		293
Net proceeds received		116,631

(1) Includes General Partner’s 2% proportional capital contribution.

On June 2, 2015, the Partnership sold 5,000,000 common units, representing limited partner interests, in an underwritten public offering (the “June 2015 Offering”). In connection with the June 2015 Offering, the General Partner contributed a total of $2.4 million in order to maintain its 2% general partner interest in the Partnership. The Partnership’s total net proceeds from the June 2015 Offering and the related General Partner’s contribution were $116.6 million.

The Partnership used the net proceeds from the June 2015 Offering to fund the cash portion of the purchase price of the Dan Sabia and to repay debt and for general partnership purposes.

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Unit Activity

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Unit Activity

14) Unit Activity

The following table shows the movement in the number of common units, subordinated units and general partner units from December 31, 2014 until September 30, 2016.

(in units)	Common Units			Subordinated Units			General Partner Units
December 31, 2014		13,807,500			8,567,500			456,633
June 2015		5,000,000			—			102,041
Repurchase program		(180,906	)		—			—
December 31, 2015		18,626,594			8,567,500			558,674
Subordinated units converted to common units		8,567,500			(8,567,500	)		—
September 30, 2016		27,194,094			—			558,674

On August 12, 2015, the Board authorized a program for the Partnership to repurchase up to 666,667 of its common units. The board of directors of the General Partner concurrently authorized the General Partner to purchase up to 333,333 common units of the Partnership. On August 10, 2016, the Board and the board of directors of the General Partner authorized an extension of the common unit purchase program to August 31, 2017. As of December 31, 2015, the Partnership and the General Partner had purchased 180,906 and 90,368 common units, respectively, pursuant to the program at an average purchase price of $12.71 per unit. No additional common units have been purchased by the Partnership or the General Partner in 2016. The Partnership and the General Partner may therefore purchase up to an additional 485,761 and 242,965 common units, respectively, under the extended program.

All purchases are made pursuant to a single program and are allocated approximately two-thirds to the Partnership and one-third to the General Partner. There is no obligation to purchase any specific number of common units and the program may be modified, suspended, extended or terminated at any time. Common units repurchased by the Partnership under the program have been cancelled.

The subordination period for the 8,567,500 subordinated units ended on May 18, 2016. All of the subordinated units, which were owned by KNOT, converted to common units on a one-for-one basis.

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Subsequent Events

9 Months Ended

Sep. 30, 2016

Subsequent Events [Abstract]

Subsequent Events

15) Subsequent Events

The Partnership has evaluated subsequent events from the balance sheet date through January 4, 2017, the date at which the unaudited condensed consolidated interim financial statements were available to be issued, and determined that there are no other items to disclose, except as follows:

On November 14, 2016, the Partnership paid a quarterly cash distribution of $0.52 per unit with respect to the quarter ended September 30, 2016. The total amount of the distribution was $15.0 million.

On December 1, 2016 the Partnership’s wholly owned subsidiary, KNOT Shuttle Tankers AS, acquired 100% of the shares of Knutsen Shuttle Tankers 19 AS (“KNOT 19”), the company that owns the shuttle tanker Raquel Knutsen, from KNOT for a purchase price of $116.5 million less $103.5 million of outstanding indebtedness related to the vessel plus approximately $7.3 million of post-closing adjustments for working capital, interest rate swaps, certain intercompany balances and approximately $1.1 million of capitalized fees related to the financing of the vessel. On the closing of the Acquisition, KNOT 19 repaid approximately $29.0 million of this indebtedness, leaving an aggregate of approximately $74.5 million of debt outstanding under the secured credit facility related to the vessel (the “Raquel Facility”). The Raquel Facility is repayable in quarterly installments with a final balloon payment of $30.5 million due at maturity in March 2025. The Raquel Facility bears interest at an annual rate equal to LIBOR plus a margin of 2.0%.

The purchase price was settled by way of seller’s credit (the “Seller’s Credit”) in the amount of approximately $13.0 million. In connection with the Acquisition, KNOT provided to KNOT Shuttle Tankers AS a loan in the amount of approximately $12.0 million (the “Seller’s Loan”). The Seller’s Credit and the Seller’s Loan are non-amortizing, mature in five years and have an annual interest rate equal to LIBOR plus a margin of 4.5%.

The Raquel Knutsen was delivered in March 2015 and is operating in Brazil under a ten-year time charter with Repsol Sinopec Brasil, B.V., which will expire in the second quarter of 2025. The charterer has options to extend the charter for one three-year period and one two-year period.

The Partnership has accounted for the acquisition of the Raquel Knutsen as an acquisition of a business. The purchase price of the acquisition has been allocated to the identifiable assets acquired. The Partnership is in the process of finalizing the accounting for the acquisition and amounts shown below are provisional. Additional business combination disclosures will be presented in the Partnership’s Form 20-F for the year ending December 31, 2016. The allocation of the purchase price to acquired identifiable assets was based on their estimated fair values at the date of acquisition. No goodwill was identified as part of the provisional purchase price allocation. The provisional fair values allocated to each class of identifiable assets of Knutsen Shuttle Tankers 19 AS and the difference between the purchase price and net assets acquired was calculated as follows:

(US $ in thousands)			December 1, 2016
Purchase consideration (1)			$	20,252
Less: Fair value of net assets acquired:
Vessel and equipment	116,500
Long-term debt	(103,519	)
Post-closing adjustments	7,271
Sub total				20,252
Difference between the purchase price and fair value of net assets acquired				—

(1) This includes the purchase consideration for the vessel less the assumed bank debt plus post-closing adjustments for working capital, interest rate swaps, certain intercompany balances and capitalized fees related to the financing of the vessel.

On December 6, 2016, the Partnership entered into a Series A Preferred Unit Purchase Agreement to issue and sell in a private placement $50 million of Series A Convertible Preferred Units (the “Preferred Units”) at a price of $24.00 per unit (the “Issue Price”), resulting in approximately 2,083,333 Preferred Units, representing limited partner interests in the Partnership, expected to be outstanding as of the closing date (the “Closing Date”) of the private placement. The Preferred Units will be perpetual and will pay cumulative, quarterly distributions in arrears at an annual rate of 8.0% of the Issue Price, on or prior to the date of payment of distributions on the Partnership’s common units. The Partnership has the option to issue and sell on the Closing Date up to an additional $49 million of Preferred Units to other purchasers at the Issue Price. The transaction is subject to customary closing conditions and is expected to close in January 2017. Assuming the Partnership issues $50 million of Preferred Units, the net proceeds, after deducting estimated fees and expenses, are expected to be approximately $48.5 million. The Partnership expects to use the net proceeds for general partnership purposes, which may include acquisitions, capital expenditures or the repayment of indebtedness.

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Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Basis of Preparation

(a) Basis of Preparation

The accompanying unaudited condensed consolidated interim financial statements are prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”) for interim financial information. All intercompany balances and transactions are eliminated. The unaudited condensed consolidated financial statements do not include all the disclosures and information required for a complete set of annual financial statements; and, therefore, these unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2015, which are included in the Partnership’s Annual Report on Form 20-F (the “2015 20-F”).

Under the Partnership’s First Amended and Restated Agreement of Limited Partnership (the “Partnership Agreement”), KNOT Offshore Partners GP LLC, a wholly owned subsidiary of KNOT, and the general partner of the Partnership (the “General Partner”), has irrevocably delegated to the Partnership’s board of directors the power to oversee and direct the operations of, manage and determine the strategies and policies of the Partnership. During the period from the Partnership’s IPO in April 2013 until the time of the Partnership’s first annual general meeting (“AGM”) on June 25, 2013, the General Partner retained the sole power to appoint, remove and replace all members of the Partnership’s board of directors. From the first AGM, four of the seven board members became electable by the common unitholders and accordingly, from this date, KNOT, as the owner of the General Partner, no longer retains the power to control the Partnership’s board of directors and, hence, the Partnership. As a result, the Partnership is no longer considered to be under common control with KNOT and as a consequence, the Partnership will not account for any vessel acquisitions from KNOT after June 25, 2013 as a transfer of equity interests between entities under common control.

Significant accounting policies

(b) Significant accounting policies

The accounting policies adopted in the preparation of the unaudited condensed consolidated interim financial statements are consistent with those followed in the preparation of the Partnership’s audited consolidated financial statements for the year ended December 31, 2015, as contained in the Partnership’s 2015 20-F.

Accounting pronouncement not yet adopted

(c) Accounting pronouncement not yet adopted

In February 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2016-02, Leases (Topic 842). The update requires an entity to recognize right-of-use assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. It also offers specific accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing and uncertainty of cash flows arising from leases. The guidance will be effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years and early adoption is permitted. The Partnership is in the process of evaluating the impact of this standard update on its consolidated financial statements and related disclosures.

In May 2014, the FASB and the International Accounting Standards Board (IASB) issued a comprehensive revenue recognition standard that will supersede existing revenue guidance under US GAAP and IFRS, ASU 2014-09, Revenue from Contracts with Customers, (or ASU 2014-09) for U.S. GAAP. ASU 2014-09 will require an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update creates a five-step model that requires an entity to exercise judgment when considering the terms of the contract(s) which include (i) identifying the contract(s) with the customer, (ii) identifying the separate performance obligations in the contract, (iii) determining the transaction price, (iv) allocating the transaction price to the separate performance obligations, and (v) recognizing revenue when each performance obligation is satisfied. In August 2015, FASB issued an ASU (ASU 2015-14) to defer by one year the effective dates of its new revenue recognition standard for public and non-public entities reporting under US GAAP. As a result, the standard (ASU 2014-09) will be effective for public entities for annual reporting periods beginning after December 15, 2017 (2018 for calendar-year public entities) and interim periods therein. ASU 2014-09 shall be applied retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. Early adoption is not permitted under U.S. GAAP. The Partnership is evaluating the effect of adopting this new accounting guidance.

In August 2014, FASB issued Presentation of Financial Statements – Going Concern (Subtopic 205-40), Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (ASU 2014-15). ASU 2014-15 requires management to evaluate whether there are conditions and events that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the financial statements are issued (or available to be issued when applicable) and, if so, disclose that fact. Management will be required to make this evaluation for both annual and interim reporting periods, if applicable. Management also is required to evaluate and disclose whether its plans alleviate that doubt. The standard is effective for annual periods after December 15, 2016 and interim periods within annual periods beginning after December 15, 2016. Early adoption is permitted. The Partnership does not expect the adoption of this standard to have a material impact on the consolidated financial statements.

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Segment Information (Tables)

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Schedule of Revenues and Percentage of Combined Revenues for Customers

The following table presents revenues and percentage of consolidated revenues for customers that accounted for more than 10% of the Partnership’s consolidated revenues during the nine months ended September 30, 2016 and 2015. All of these customers are subsidiaries of major international oil companies, except KNOT, which was chartering the Windsor Knutsen until she was redelivered to Royal Dutch Shell (“Shell”), formerly BG Group, in October 2015.

	Three Months Ended September 30,								Nine Months Ended September 30,
(U.S. Dollars in thousands)	2016				2015				2016				2015
Fronape International Company, a subsidiary of Petrobras Transporte S.A.	$	11,368	26	%		11,368	29	%	$	33,866	27	%		29,250	26	%
Eni Trading and Shipping S.pA		11,816	27	%		11,810	30	%		35,191	27	%		35,000	31	%
Statoil ASA		5,809	13	%		5,864	15	%		16,038	13	%		17,345	15	%
Repsol Sinopec Brasil, S.A., a subsidiary of Repsol Sinopec Brasil, B.V.		4,793	11	%		5,126	13	%		14,553	11	%		15,212	14	%
Brazil Shipping I Limited, a subsidiary of Shell		5,210	13	%		—	—			15,344	12	%		—	—
Standard Marine Tønsberg, a subsidiary of ExxonMobil		4,394	10	%		—	—			13,087	10	%		—	—
Knutsen NYK Offshore Tankers AS		—	—			5,113	13	%		—	—			15,526	14	%

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Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Realized and Unrealized Gains and Losses Recognized in Earnings

The following table presents the realized and unrealized gains and losses that are recognized in earnings as net gain (loss) for derivative instruments for the three and nine months ended September 30, 2016 and 2015:

	Three Months Ended September 30,						Nine Months Ended September 30,
(US $ in thousands)	2016			2015			2016			2015
Realized (loss)
Interest rate swap contracts	$	(671	)	$	(989	)	$	(2,847	)	$	(3,348	)
Foreign exchange forward contracts		(152	)		(3,238	)		(468	)		(3,238	)
Unrealized gain (loss)
Interest rate swap contracts		2,744			(4,032	)		(3,122	)		(5,866	)
Foreign exchange forward contracts		1,692			1,789			3,690			612
Total realized and unrealized (loss) gain		3,613			(6,470	)		(2,747	)		(11,840	)

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Carrying Amounts and Estimated Fair Values of Partnership 's Financial Instruments

The following table presents the carrying amounts and estimated fair values of the Partnership’s financial instruments as of September 30, 2016 and December 31, 2015. Fair value is defined as the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.

	September 30, 2016				December 31, 2015
(U.S. Dollars in thousands)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Financial assets:
Cash and cash equivalents	$	27,382	$	27,382	$	23,573	$	23,573
Non-current derivative assets:
Interest rate swap contracts		—		—		695		695
Foreign exchange forward contracts		1,645		1,645		—		—
Financial liabilities:
Current derivative liabilities:
Interest rate swap contracts		2,621		2,621		3,799		3,799
Foreign exchange forward contracts		—		—		1,339		1,339
Non-current derivative liabilities:
Interest rate swap contracts		4,132		4,132		527		527
Foreign exchange forward contracts		—		—		705		705
Long-term debt, current and non-current		635,209		635,209		667,772		667,772

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table presents the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a recurring basis (including items that are required to be measured at fair value or for which fair value is required to be disclosed) as of September 30, 2016 and December 31, 2015:

			Fair Value Measurements at Reporting Date Using
(U.S. Dollars in thousands)	September 30, 2016		Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	27,382	$	27,382	$	—	$	—
Non-current derivative assets:
Interest rate swap contracts		—		—		—		—
Foreign exchange forward contracts		1,645		—		1,645		—
Financial liabilities:
Current derivative liabilities:
Interest rate swap contracts		2,621		—		2,621		—
Foreign exchange forward contracts		—		—		—		—
Non-current derivative liabilities:
Interest rate swap contracts		4,132		—		4,132		—
Long-term debt, current and non-current		635,209		—		635,209		—

			Fair Value Measurements at Reporting Date Using
(U.S. Dollars in thousands)	December 31, 2015		Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	23,573	$	23,573	$	—	$	—
Non-current derivative assets:
Interest rate swap contracts		695		—		695		—
Financial liabilities:
Current derivative liabilities:
Interest rate swap contracts		3,799		—		3,799		—
Foreign exchange forward contracts		1,339		—		1,339		—
Non-current derivative liabilities:
Interest rate swap contracts		527				527		—
Foreign exchange forward contract		705				705
Long-term debt, current and non-current		667,772		—		667,772		—

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Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

As of September 30, 2016 and December 31, 2015, the Partnership had the following debt amounts outstanding:

(U.S. Dollars in thousands)	Vessel	September 30, 2016		December 31, 2015
$220 million loan facility	Windsor Knutsen, Bodil Knutsen, Carmen Knutsen	$	184,643	$	196,429
$140 million loan facility	Fortaleza Knutsen & Recife Knutsen		120,313		126,875
$117 million loan facility	Hilda Knutsen		78,103		81,797
$117 million loan facility	Torill Knutsen		79,337		83,033
$172.5 million loan facility	Dan Cisne, Dan Sabia		105,139		109,339
$77.5 million loan facility	Ingrid Knutsen		70,934		74,217
Total long-term debt			638,469		671,690
Less: current installments			50,084		49,684
Less: unamortized deferred loan issuance costs			1,207		1,149
Current portion of long-term debt			48,877		48,535
Amounts due after one year			588,384		622,006
Less: unamortized deferred loan issuance costs			2,052		2,819
Long-term debt less current installments and unamortized deferred loan issuance costs		$	586,332	$	619,187

Summary of Partnership's Outstanding Debt Repayable

The Partnership’s outstanding debt of $638.5 million as of September 30, 2016 is repayable as follows:

(US $ in thousands)	Period repayment		Balloon repayment
Remainder of 2016	$	16,463	$	—
2017		50,084		—
2018		48,495		154,927
2019		28,582		237,678
2020		17,650		—
2021 and thereafter		71,650		12,940
Total	$	232,924	$	405,545

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Income Taxes (Tables)

9 Months Ended

Sep. 30, 2016

Income Tax Disclosure [Abstract]

Components of Current and Deferred Income Tax Expense Attributable to Income from Continuing Operations

Profit and loss from continuing operation before income taxes was taxable to Norway and significant components of current and deferred income tax expense attributable to income from continuing operations for the three and nine months ended September 30, 2016 and 2015 as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
(US $ in thousands)	2016			2015			2016			2015
Income before income taxes	$	19,360		$	8,802		$	41,607		$	22,881
Income tax (expense)		(3	)		—			(9	)		(6	)
Effective tax rate		0	%		0	%		0	%		0	%

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Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2016

Related Party Transactions [Abstract]

Schedule of Related Party Costs and Expenses

Net expenses (income) from related parties included in the unaudited condensed consolidated statements of operations for the three and nine months ended September 30, 2016 and 2015 are as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(US $ in thousands)	2016		2015		2016		2015
Statements of operations:
Time charter and bareboat revenues:
Charter revenues from KNOT (1)	$	—	$	5,113	$	—	$	15,526
Other income:
Guarantee income from KNOT to vessel(2)		196		—		577		—
Operating expenses:
Technical and operational management fee from KNOT Management to Vessels (3)		733		580		2,198		1,743
General and administrative expenses:
Administration fee from KNOT Management (4)		327		306		960		700
Administration fee from KOAS (4)		95		97		286		267
Administration fee from KOAS UK (4)		35		38		106		112
Administration and management fee from KNOT (5)		50		46		152		118
Finance income (expense):
Interest expense charged from KNOT (6)		—		—		—		(268	)
Total		1,044		4,046		3,125		12,318

(1) Charter revenues from KNOT: Pursuant to the Omnibus Agreement KNOT entered into with the Partnership at the time of the IPO, KNOT agreed to guarantee the payments of the hire rate under the initial charters of each of the Bodil Knutsen and the Windsor Knutsen for a period of five years from the closing date of the IPO. Shell, the charterer of the Windsor Knutsen , did not exercise its option to extend the Windsor Knutsen time charter after the expiration of its initial term, and on July 29, 2014 KNOT and the Partnership entered into a time charter for the vessel at a rate of hire that would have been in effect during the option period under the previous Shell time charter. This charter was effective until the Windsor Knutsen commenced in October 2015 on a new Shell time charter. See Note 9(b)—Related Party Transactions—Guarantees and Indemnifications.

(2) Guarantee income from KNOT: Pursuant to the Omnibus Agreement, KNOT agreed to guarantee the payments of the hire rate under the initial charter of the Bodil Knutsen and the Windsor Knutsen for a period of five years from the closing date of the IPO. In October 2015, the Windsor Knutsen commenced on a new Shell time charter with a hire rate below the hire rate in the initial charter. The difference between the new hire rate and the initial rate is paid by KNOT. See Note 9(b)—Related Party Transactions—Guarantees and Indemnifications.

(3) Technical and operational management fee from KNOT Management to Vessels: KNOT Management AS (“KNOT Management”) provides technical and operational management of the vessels on time charter including crewing, purchasing, maintenance and other operational services. In addition, there is also a charge for 24-hour emergency response services provided by KNOT for all vessels managed by KNOT.

(4) Administration fee from KNOT Management and Knutsen OAS Shipping AS (“KOAS”) and Knutsen OAS (UK) Ltd. (“KOAS UK”): Administration costs include the compensation and benefits of KNOT Management’s management and administrative staff as well as other general and administration expenses. Some benefits are also provided by KOAS and KOAS UK. Net administration costs are total administration cost plus a 5% margin, reduced for the total fees for services delivered by the administration staffs and the estimated shareholder costs for KNOT that have not been allocated. As such, the level of net administration costs as a basis for the allocation can vary from year to year based on the administration and financing services offered by KNOT to all the vessels in its fleet each year. KNOT Management also charges each subsidiaries a fixed annual fee for the preparation of the statutory financial statement.

(5) Administration and management fee from KNOT: For bareboat charters, the shipowner is not responsible for providing crewing or other operational services and the customer is responsible for all vessel operating expenses and voyage expenses. However, each of the vessels under bareboat charters are subject to management and administration agreements with either KNOT Management or KNOT Management Denmark, pursuant to which these companies provide general monitoring services for the vessels in exchange for an annual fee.

(6) Interest expense charged from KNOT: KNOT invoiced interest (expense) income for any outstanding payables to (receivable from) owners and affiliates to the vessel-owning subsidiaries.

(7) Drydocking supervision fee from KNOT and KOAS: KNOT and KOAS provide supervision and hire out service personnel during drydocking of the vessels. The fee is calculated as a daily fixed fee.

Schedule of Dues Payables to Related Party

(US $ in thousands)	At September 30, 2016		At December 31, 2015
Balance Sheet:
Vessels:
Drydocking supervision fee from KNOT (7)	$	38	$	—
Drydocking supervision fee from KOAS (7)		16		—
Total		54		—

Summary of Amounts Due from (to) Related Parties

Balances with related parties consisted of the following:

(U.S. Dollars in thousands)	At September 30,  2016		At December 31,  2015
Balance Sheets:
Trading balances due from KOAS	$	28	$	10
Trading balances due from KNOT and affiliates		41		48
Amount due from related parties	$	69	$	58
Trading balances due to KOAS	$	586	$	448
Trading balances due to KNOT and affiliates		179		400
Amount due to related parties	$	765	$	848

Schedule of Trade Accounts Payables to Related Parties

Trade accounts payables to related parties are included in total trade accounts payables in the balance sheet. The balances to related parties consisted of the following:

(U.S. Dollars in thousands)	At September 30, 2016		At December 31, 2015
Balance Sheets:
Trading balances due to KOAS	$	402	$	651
Trading balances due to KNOT and affiliates		355		360
Trade accounts payables to related parties	$	757	$	1,011

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Earnings per Unit and Cash Distributions (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Schedule of Calculations of Basic and Diluted Earnings per Unit

The calculations of basic and diluted earnings per unit (1) are presented below:

(US $ in thousands, except per unit data)	Three   Months Ended    September 30, 2016			Three   Months Ended    September 30, 2015			Nine   Months Ended    September 30, 2016			Nine   Months Ended    September 30, 2015
Net income attributable to the partners of KNOT Offshore Partners LP	$	19,357		$	8,802		$	41,598		$	22,875
Less: Distributions paid (2)		15,027			15,110			45,149			41,910
Under (over) distributed earnings		(4,330	)		(6,308	)		(3,551	)		(19,035	)
Under (over) distributed earnings attributable to:
Common unitholders (3)		(4,243	)		(4,247	)		(3,480	)		(12,816	)
Subordinated unitholders (3)		—			(1,935	)		—			(5,838	)
General Partner		(87	)		(126	)		(72	)		(381	)
Weighted average units outstanding (basic and diluted) (in thousands):
Common unitholders		27,194			18,807			22,817			16,005
Subordinated unitholders		—			8,568			4,377			8,568
General Partner		559			559			559			467
Earnings per unit (basic and diluted):
Common unitholders	$	0.697		$	0.294		$	1.563		$	0.850
Subordinated unitholders (4)		—			0.362			1.154			1.033
General Partner		0. 697			0.294			1.594			0.915
Cash distributions declared and paid in the period per unit (5)		0.520			0.510			1.560			1.510
Subsequent event: Cash distributions declared and paid per unit relating to the period (6)		0.520			0.520			0.520			0.520

(1) Earnings per unit have been calculated in accordance with the cash distribution provisions set forth in the Partnership’s Partnership Agreement.

(2) This refers to distributions made or to be made in relation to the period irrespective of the declaration and payment dates and based on the number of units outstanding at the record date. This includes cash distributions to the IDR holder (KNOT) for the three months ended September 30, 2016 and 2015 of $0.6 million and of $0.6 million, respectively, and for the nine months ended September 30, 2016 and 2015 of $1.8 million and of $1.5 million, respectively.

(3) On May 18, 2016 all subordinated units converted in to common units on a one-for-one basis.

(4) This includes the net income attributable to the IDR holder. The IDRs generally may not be transferred by KNOT until March 31, 2018. The net income attributable to IDRs for the three months ended September 30, 2016 and 2015 was $0.6 million and $0.6 million, respectively, and for the nine months ended September 30, 2016 and 2015 was $1.8 million and $1.5 million, respectively.

(5) Refers to cash distributions declared and paid during the period.

(6) Refers to cash distributions declared and paid subsequent to the period end.

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Subsequent Events (Tables)

9 Months Ended

Sep. 30, 2016

Schedule of Purchase Price of Each Transaction

The Board and the Conflicts Committee approved the purchase price for each transaction. The Conflicts Committee retained a financial advisor to assist with its evaluation of each of the transactions. The details of each transaction are as follows:

(US $ in thousands)	Final Ingrid Knutsen October 15, 2015			Final Dan Sabia June 15, 2015
Purchase consideration (1)	$	12,863		$	41,186
Less: Fair value of net assets acquired:
Vessel and equipment (2)		115,000			103,389
Cash		4,744			4,343
Inventories		144			—
Others current assets		188			25
Amounts due from related parties		1			935
Long-term debt		(84,275	)		(64,470	)
Long-term debt from related parties		(20,253	)		—
Derivatives liabilities		—			(802	)
Trade accounts payable		(94	)		(4	)
Accrued expenses		(1,555	)		(335	)
Prepaid charter and deferred revenue		(762	)		(442	)
Amounts due to related parties		(275	)		(1,453	)
Sub total		12,863			41,186
Difference between the purchase price and fair value of net assets acquired	$	—		$	—
Goodwill		—			—
Difference between the purchase price and allocated values	$	—		$	—

(1) The purchase price is comprised of the following:

(US $ in thousands)	Final Ingrid Knutsen October 15, 2015		Final Dan Sabia June 15, 2015
Cash consideration paid to KNOT	$	10,472	$	38,531
Purchase price adjustments		2,391		2,655
Total purchase consideration	$	12,863	$	41,186

(2) Vessels and equipment includes allocation to dry docking for the Ingrid Knutsen of $1,263 and for the Dan Sabia of $389.

Raquel Knutsen [Member]

Schedule of Purchase Price of Each Transaction

The provisional fair values allocated to each class of identifiable assets of Knutsen Shuttle Tankers 19 AS and the difference between the purchase price and net assets acquired was calculated as follows:

(US $ in thousands)			December 1, 2016
Purchase consideration (1)			$	20,252
Less: Fair value of net assets acquired:
Vessel and equipment	116,500
Long-term debt	(103,519	)
Post-closing adjustments	7,271
Sub total				20,252
Difference between the purchase price and fair value of net assets acquired				—

(1) This includes the purchase consideration for the vessel less the assumed bank debt plus post-closing adjustments for working capital, interest rate swaps, certain intercompany balances and capitalized fees related to the financing of the vessel.

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Business Acquisitions (Tables)

9 Months Ended

Sep. 30, 2016

Business Combinations [Abstract]

Schedule of Summarized Consolidated Pro Forma Financial Information

The table below shows comparative summarized consolidated pro forma financial information for the Partnership for the nine months ended September 30, 2015, giving effect to the Partnership’s acquisition and financing of the Dan Sabia as if this acquisition had taken place on January 1, 2015.

(US $ in thousands)	Nine Months Ended      September 30, 2015
Revenue	$	116,984
Net income		23,840

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Equity Offerings (Tables)

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Schedule of Equity Offerings

(US $ in thousands)	June 2015 Offering
Gross proceeds received (1)	$	121,224
Less: Underwriters’ discount		4,300
Less: Offering expenses		293
Net proceeds received		116,631

(1) Includes General Partner’s 2% proportional capital contribution.

XML

Unit Activity (Tables)

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Schedule of Movement in Number of Common Units, Subordinated Units and General Partner Units

The following table shows the movement in the number of common units, subordinated units and general partner units from December 31, 2014 until September 30, 2016.

(in units)	Common Units			Subordinated Units			General Partner Units
December 31, 2014		13,807,500			8,567,500			456,633
June 2015		5,000,000			—			102,041
Repurchase program		(180,906	)		—			—
December 31, 2015		18,626,594			8,567,500			558,674
Subordinated units converted to common units		8,567,500			(8,567,500	)		—
September 30, 2016		27,194,094			—			558,674

XML

Description of Business - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2016 Tanker Vessel	Sep. 30, 2015 Vessel
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Number of shuttle tankers to be acquired | Tanker	4
Initial public offering completion date	2013-04
Percentage of ownership interests to be acquired by Partnership in four shuttle tankers	100.00%
Number of operating vessels | Vessel	10	9
Windsor Knutsen [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Time charters expiration year	2017
Bodil Knutsen [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Time charters expiration year	2019
Time charterer options extension year	2024
Recife Knutsen [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Bareboat charters expiration year	2023
Fortaleza Knutsen [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Bareboat charters expiration year	2023
Carmen Knutsen [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Time charters expiration year	2023
Time charterer options extension year	2026
Hilda Knutsen and Torill Knutsen [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Time charters expiration year	2018
Time charterer options extension year	2023
Dan Cisne [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Bareboat charters expiration year	2023
Dan Sabia [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Bareboat charters expiration year	2024
Ingrid Knutsen [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Time charters expiration year	2024
Time charterer options extension year	2029

XML

Segment Information - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2016 Boats Vessel Times Segment	Sep. 30, 2015 Boats Vessel Times
Revenue, Major Customer [Line Items]
Number of reportable segments | Segment	1
Number of time charters | Times	6	5
Number of bareboat charters | Boats	4	4
Number of vessels | Vessel	10	9
Minimum [Member] | Revenues [Member] | Customer Concentration Risk [Member]
Revenue, Major Customer [Line Items]
Benchmark percentage of revenues and combined revenues concentration	10.00%	10.00%

XML

Segment Information - Schedule of Revenues and Percentage of Combined Revenues for Customers (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenue, Major Customer [Line Items]
Revenues	$ 43,587	$ 39,284	$ 128,676	$ 112,487
Knutsen NYK Offshore Tankers AS [Member]
Revenue, Major Customer [Line Items]
Revenues		5,113		15,526
Fronape International Company, a Subsidiary of Petrobras Transporte S.A. [Member]
Revenue, Major Customer [Line Items]
Revenues	11,368	11,368	33,866	29,250
Eni Trading and Shipping S.pA [Member]
Revenue, Major Customer [Line Items]
Revenues	11,816	11,810	35,191	35,000
Statoil ASA [Member]
Revenue, Major Customer [Line Items]
Revenues	5,809	5,864	16,038	17,345
Repsol Sinopec Brasil, S.A., a Subsidiary of Repsol Sinopec Brasil, B.V. [Member]
Revenue, Major Customer [Line Items]
Revenues	4,793	$ 5,126	14,553	$ 15,212
Brazil Shipping I Limited, a Subsidiary of Shell [Member]
Revenue, Major Customer [Line Items]
Revenues	5,210		15,344
Standard Marine AS, a Subsidiary of ExxonMobil [Member]
Revenue, Major Customer [Line Items]
Revenues	$ 4,394		$ 13,087
Customer Concentration Risk [Member] | Revenues [Member] | Knutsen NYK Offshore Tankers AS [Member]
Revenue, Major Customer [Line Items]
Percentage of combined revenues for customers		13.00%		14.00%
Customer Concentration Risk [Member] | Revenues [Member] | Fronape International Company, a Subsidiary of Petrobras Transporte S.A. [Member]
Revenue, Major Customer [Line Items]
Percentage of combined revenues for customers	26.00%	29.00%	27.00%	26.00%
Customer Concentration Risk [Member] | Revenues [Member] | Eni Trading and Shipping S.pA [Member]
Revenue, Major Customer [Line Items]
Percentage of combined revenues for customers	27.00%	30.00%	27.00%	31.00%
Customer Concentration Risk [Member] | Revenues [Member] | Statoil ASA [Member]
Revenue, Major Customer [Line Items]
Percentage of combined revenues for customers	13.00%	15.00%	13.00%	15.00%
Customer Concentration Risk [Member] | Revenues [Member] | Repsol Sinopec Brasil, S.A., a Subsidiary of Repsol Sinopec Brasil, B.V. [Member]
Revenue, Major Customer [Line Items]
Percentage of combined revenues for customers	11.00%	13.00%	11.00%	14.00%
Customer Concentration Risk [Member] | Revenues [Member] | Brazil Shipping I Limited, a Subsidiary of Shell [Member]
Revenue, Major Customer [Line Items]
Percentage of combined revenues for customers	13.00%		12.00%
Customer Concentration Risk [Member] | Revenues [Member] | Standard Marine AS, a Subsidiary of ExxonMobil [Member]
Revenue, Major Customer [Line Items]
Percentage of combined revenues for customers	10.00%		10.00%

XML

Goodwill Impairment Charge - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended	9 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment of vessels		$ 0
Goodwill impairment charge	$ 6,217,000	6,217,000	$ 6,217,000
Goodwill	$ 0	$ 0

XML

Derivative Instruments - Additional Information (Detail) NOK in Millions, $ in Millions	Sep. 30, 2016 USD ($)	Sep. 30, 2016 NOK	Dec. 31, 2015 USD ($)	Dec. 31, 2015 NOK
Interest Rate Swap Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Weighted average interest rate	1.54%	1.54%
Derivative, Notional amount of outstanding obligations	$ 407.7		$ 410.0
Carrying amount of derivative liabilities	6.8		3.6
Foreign Exchange Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional amount of outstanding obligations | NOK		NOK 293.8		NOK 289.8
Carrying amount of derivative liabilities			$ 2.1
Carrying amount of derivative assets	$ 1.7

XML

Derivative Instruments - Schedule of Realized and Unrealized Gains and Losses Recognized in Earnings (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss)	$ 3,613	$ (6,470)	$ (2,747)	$ (11,840)
Unrealized gain (loss)			568	(5,254)
Interest Rate Swap Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss)	(671)	(989)	(2,847)	(3,348)
Unrealized gain (loss)	2,744	(4,032)	(3,122)	(5,866)
Foreign Exchange Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized gain (loss)	(152)	(3,238)	(468)	(3,238)
Unrealized gain (loss)	$ 1,692	$ 1,789	$ 3,690	$ 612

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Fair Value Measurements - Carrying Amounts and Estimated Fair Values of Partnership 's Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Financial assets:
Cash and cash equivalents	$ 27,382	$ 23,573	$ 67,197	$ 30,746
Non-current derivative assets		695
Financial liabilities:
Current derivative liabilities	2,621	5,138
Non-current derivative liabilities	4,132	1,232
Long-term debt, current and non-current	638,469	671,690
Interest Rate Swap Contracts [Member]
Financial assets:
Non-current derivative assets		695
Financial liabilities:
Current derivative liabilities	2,621	3,799
Non-current derivative liabilities	4,132	527
Foreign Exchange Forward Contracts [Member]
Financial assets:
Non-current derivative assets	1,645
Financial liabilities:
Current derivative liabilities		1,339
Non-current derivative liabilities		705
Carrying Amount [Member]
Financial assets:
Cash and cash equivalents	27,382	23,573
Financial liabilities:
Long-term debt, current and non-current	635,209	667,772
Carrying Amount [Member] | Interest Rate Swap Contracts [Member]
Financial assets:
Non-current derivative assets		695
Financial liabilities:
Current derivative liabilities	2,621	3,799
Non-current derivative liabilities	4,132	527
Carrying Amount [Member] | Foreign Exchange Forward Contracts [Member]
Financial assets:
Non-current derivative assets	1,645
Financial liabilities:
Current derivative liabilities		1,339
Non-current derivative liabilities		705
Fair Value [Member]
Financial assets:
Cash and cash equivalents	27,382	23,573
Financial liabilities:
Long-term debt, current and non-current	635,209	667,772
Fair Value [Member] | Interest Rate Swap Contracts [Member]
Financial assets:
Non-current derivative assets		695
Financial liabilities:
Current derivative liabilities	2,621	3,799
Non-current derivative liabilities	4,132	527
Fair Value [Member] | Foreign Exchange Forward Contracts [Member]
Financial assets:
Non-current derivative assets	$ 1,645
Financial liabilities:
Current derivative liabilities		1,339
Non-current derivative liabilities		$ 705

XML

Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Financial assets:
Cash and cash equivalents	$ 27,382	$ 23,573
Non-current derivative assets		695
Financial liabilities:
Current derivative liabilities	2,621	5,138
Non-current derivative liabilities	4,132	1,232
Long-term debt, current and non-current	635,209	667,772
Foreign Exchange Forward Contracts [Member]
Financial assets:
Non-current derivative assets	1,645
Financial liabilities:
Current derivative liabilities		1,339
Non-current derivative liabilities		705
Interest Rate Swap Contracts [Member]
Financial assets:
Non-current derivative assets		695
Financial liabilities:
Current derivative liabilities	2,621	3,799
Non-current derivative liabilities	4,132	527
Quoted Price in Active Markets for Identical Assets (Level 1) [Member]
Financial assets:
Cash and cash equivalents	27,382	23,573
Significant Other Observable Inputs (Level 2) [Member]
Financial liabilities:
Long-term debt, current and non-current	635,209	667,772
Significant Other Observable Inputs (Level 2) [Member] | Foreign Exchange Forward Contracts [Member]
Financial assets:
Non-current derivative assets	1,645
Financial liabilities:
Current derivative liabilities		1,339
Non-current derivative liabilities		705
Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Swap Contracts [Member]
Financial assets:
Non-current derivative assets		695
Financial liabilities:
Current derivative liabilities	2,621	3,799
Non-current derivative liabilities	$ 4,132	$ 527

XML

Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total		$ 638,469	$ 671,690
Less: current installments		50,084	49,684
Less: unamortized deferred loan issuance costs		1,207	1,149
Current portion of long-term debt	[1]	48,877	48,535
Amounts due after one year		588,384	622,006
Less: unamortized deferred loan issuance costs		2,052	2,819
Long-term debt less current installments and unamortized deferred loan issuance costs	[1]	586,332	619,187
220 Million Secured Loan Facility [Member] | Windsor Knutsen Bodil Knutsen Carmen Knutsen [Member]
Debt Instrument [Line Items]
Total		184,643	196,429
140 Million Loan Facility [Member] | Fortaleza Knutsen and Recife Knutsen [Member]
Debt Instrument [Line Items]
Total		120,313	126,875
117 Million Loan Facility [Member] | Hilda Knutsen [Member]
Debt Instrument [Line Items]
Total		78,103	81,797
117 Million Loan Facility [Member] | Torill Knutsen [Member]
Debt Instrument [Line Items]
Total		79,337	83,033
172.5 Million Loan Facility [Member] | Dan Cisne Dan Sabia [Member]
Debt Instrument [Line Items]
Total		105,139	109,339
77.5 Million Loan Facility [Member] | Ingrid Knutsen [Member]
Debt Instrument [Line Items]
Total		$ 70,934	$ 74,217

[1] Effective January 1, 2016, the Partnership implemented ASU 2015-03, Interest - Imputation of Interest (Subtopic 835-30), Simplifying the Presentation of Debt Issuance Costs, which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability rather than as an asset. The recognition and measurement guidance for debt issuance costs is not affected. Therefore, these costs will continue to be amortized as interest expense using the effective interest method. The new guidance is applied retrospectively for all periods presented. As of September 30, 2016 and December 31, 2015 the carrying amount of the deferred debt issuance cost was $3.3 million and $4.0 million, respectively.

XML

Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail)	Sep. 30, 2016 USD ($)
220 Million Secured Loan Facility [Member] | Windsor Knutsen Bodil Knutsen Carmen Knutsen [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 220,000,000
140 Million Loan Facility [Member] | Fortaleza Knutsen and Recife Knutsen [Member]
Debt Instrument [Line Items]
Debt instrument face amount	140,000,000
117 Million Loan Facility [Member] | Hilda Knutsen [Member]
Debt Instrument [Line Items]
Debt instrument face amount	117,000,000
117 Million Loan Facility [Member] | Torill Knutsen [Member]
Debt Instrument [Line Items]
Debt instrument face amount	117,000,000
172.5 Million Loan Facility [Member] | Dan Cisne Dan Sabia [Member]
Debt Instrument [Line Items]
Debt instrument face amount	172,500,000
77.5 Million Loan Facility [Member] | Ingrid Knutsen [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 77,500,000

XML

Long-Term Debt - Additional Information (Detail) - USD ($)		9 Months Ended
	Jun. 30, 2016	Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total long-term debt		$ 638,500,000
Total long-term debt		$ 638,469,000	$ 671,690,000
Partnership's Loan Agreements [Member]
Debt Instrument [Line Items]
Long term debt interest rate description		London Interbank Offered Rate ("LIBOR") plus a fixed margin ranging from 2.125% to 2.5%.
Partnership's Loan Agreements [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Long term debt fixed margin percentage		2.125%
Partnership's Loan Agreements [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Long term debt fixed margin percentage		2.50%
77.5 Million Loan Facility, Tranche Two [Member]
Debt Instrument [Line Items]
Total long-term debt		$ 55,100,000
Long term debt interest rate percentage		3.85%
240 Million Secured Loan Facility [Member] | Senior Term Loan [Member]
Debt Instrument [Line Items]
Senior secured credit facility	$ 240,000,000
Guarantee Commission [Member] | 77.5 Million Loan Facility, Tranche Two [Member]
Debt Instrument [Line Items]
Long term debt interest rate percentage		1.35%
Bank Facility Rate [Member] | 77.5 Million Loan Facility, Tranche Two [Member]
Debt Instrument [Line Items]
Long term debt interest rate percentage		2.50%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long term debt interest rate percentage	2.125%
Senior secured credit facility	$ 20,000,000
Revolving Credit Facility [Member] | Amended Senior Secured Loan Facility [Member]
Debt Instrument [Line Items]
Long term debt interest rate description		LIBOR plus a fixed margin of 2.5%
Long term debt interest rate percentage	2.50%
Senior secured credit facility	$ 35,000,000
Additional borrowing capacity after amendment	$ 15,000,000
Line of credit facility expiration date	Jun. 30, 2019
Line of credit facility commitment fee percentage	40.00%

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Long-Term Debt - Summary of Partnership's Outstanding Debt Repayable (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Debt Instrument, Redemption [Line Items]
Remainder of 2016	$ 16,463
2017	50,084
2018	48,495
2018	28,582
2019	17,650
2021 and thereafter	71,650
Total	232,924
Total	638,469	$ 671,690
Balloon Repayment [Member]
Debt Instrument, Redemption [Line Items]
2018	154,927
2019	237,678
2021 and thereafter	12,940
Total	$ 405,545

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Income Taxes - Additional information (Detail) - USD ($) $ in Millions	3 Months Ended			9 Months Ended	12 Months Ended
	Mar. 31, 2016	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2016	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Entrance tax							$ 3.0
Entrance tax, annual decline in gain				20.00%
Norwegian corporate tax rate				25.00%	27.00%	28.00%
Entrance tax paid, current	$ 0.2	$ 0.1	$ 0.2
Entrance tax payable, non current				$ 1.0

XML

Income Taxes - Schedule of Profit and Loss from Continuing Operations Before Income Taxes and Components of Current and Deferred Income Tax Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income before income taxes	$ 19,360	$ 8,802	$ 41,607	$ 22,881
Income tax (expense)	$ (3)		$ (9)	$ (6)
Effective tax rate	0.00%	0.00%	0.00%	0.00%

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Related Party Transactions - Schedule of Related Party Costs and Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Related Party Transaction [Line Items]
Total	$ 1,044	$ 4,046	$ 3,125	$ 12,318
KNOT [Member] | Charter Revenues [Member]
Related Party Transaction [Line Items]
Time charter and bareboat revenues		5,113		15,526
KNOT [Member] | Guarantee Income [Member]
Related Party Transaction [Line Items]
Other income	196		577
KNOT [Member] | Technical and Operational Management Fee [Member]
Related Party Transaction [Line Items]
Operating expenses	733	580	2,198	1,743
KNOT [Member] | General and Administrative Expenses [Member]
Related Party Transaction [Line Items]
Administration fee	327	306	960	700
KNOT [Member] | Administration and Management Fee [Member]
Related Party Transaction [Line Items]
Administration fee	50	46	152	118
KNOT [Member] | Interest Expenses [Member]
Related Party Transaction [Line Items]
Interest expense charged from KNOT				(268)
KOAS [Member] | General and Administrative Expenses [Member]
Related Party Transaction [Line Items]
Administration fee	95	97	286	267
KOAS UK [Member] | General and Administrative Expenses [Member]
Related Party Transaction [Line Items]
Administration fee	$ 35	$ 38	$ 106	$ 112

XML

Related Party Transactions - Schedule of Dues Payables to Related Party (Detail) $ in Thousands	Sep. 30, 2016 USD ($)
Related Party Transaction [Line Items]
Drydocking supervision fee	$ 54
KNOT [Member]
Related Party Transaction [Line Items]
Drydocking supervision fee	38
KOAS [Member]
Related Party Transaction [Line Items]
Drydocking supervision fee	$ 16

XML

Related Party Transactions - Schedule of Related Party Costs and Expenses (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2016
KOAS [Member]
Related Party Transaction [Line Items]
Margin rate on administration cost	5.00%
KOAS UK [Member]
Related Party Transaction [Line Items]
Margin rate on administration cost	5.00%

XML

Related Party Transactions - Additional Information (Detail) - USD ($)			9 Months Ended
	Oct. 15, 2015	Jun. 30, 2015	Sep. 30, 2016
Related Party Transaction [Line Items]
Guarantor obligations, related party disclosure			Pursuant to the Omnibus Agreement, KNOT agreed to guarantee the payments of the hire rate under the initial charters of each of the Bodil Knutsen and the Windsor Knutsen for a period of five years from the closing date of the IPO.
KNOT Shuttle Tankers 21 AS [Member]
Related Party Transaction [Line Items]
Partnership, ownership interest		100.00%
Knutsen NYK Shuttle Tankers 21 AS [Member]
Related Party Transaction [Line Items]
Partnership, ownership interest	100.00%
Omnibus Agreement [Member]
Related Party Transaction [Line Items]
Guarantor obligations, related party disclosure			In addition, pursuant to the Omnibus Agreement, KNOT agreed to indemnify the Partnership for any defects in title to certain assets contributed or sold to the Partnership and any failure to obtain, prior to April 15, 2013, certain consents and permits necessary to conduct the Partnership's business, which liabilities arise within three years after the closing of the IPO on April 15, 2013.
Environmental claims indemnification deductible			$ 500,000
Environmental claims indemnification liabilities aggregate cap			$ 5,000,000
Initial public offering completion date			Apr. 15, 2013

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Related Party Transactions - Summary of Amounts Due from (to) Related Parties (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Balance Sheets:
Amount due from related parties	$ 69	$ 58
Amount due to related parties	765	848
KOAS [Member]
Balance Sheets:
Amount due from related parties	28	10
Amount due to related parties	586	448
KNOT [Member]
Balance Sheets:
Amount due from related parties	41	48
Amount due to related parties	$ 179	$ 400

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Related Party Transactions - Schedule of Trade Accounts Payables to Related Parties (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Balance Sheets:
Amount due to related parties	$ 765	$ 848
Trade Accounts Payables [Member]
Balance Sheets:
Amount due to related parties	757	1,011
Trade Accounts Payables [Member] | KOAS [Member]
Balance Sheets:
Amount due to related parties	402	651
Trade Accounts Payables [Member] | KNOT [Member]
Balance Sheets:
Amount due to related parties	$ 355	$ 360

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Commitments and Contingencies - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Loss Contingencies [Line Items]
Book value of assets pledged as security	$ 1,155,000,000	$ 1,193,000,000
Insurance coverage deductible amount per vessel	$ 150,000
Lost hire compensation insurance coverage, description	Under the loss of hire policies, the insurer will pay a compensation for the lost hire rate agreed in respect of each Vessel for each day, in excess of 14 deductible days, for the time that the Vessel is out of service as a result of damage, for a maximum of 180 days.
Insurance coverage for pollution, maximum liability per vessel	$ 1,000,000,000
Lost hire compensation insurance coverage, deductible days	14 days
Maximum [Member]
Loss Contingencies [Line Items]
Lost hire compensation insurance coverage, deductible days	180 days

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Earnings per Unit and Cash Distributions - Schedule of Calculations of Basic and Diluted Earnings per Unit (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Unit Basic And Diluted [Line Items]
Net income attributable to the partners of KNOT Offshore Partners LP	$ 19,357	$ 8,802	$ 41,598	$ 22,875
Less: Distributions paid	15,027	15,110	45,149	41,910
Net income (loss)	(4,330)	(6,308)	(3,551)	(19,035)
Under (over) distributed earnings attributable to:
Under (over) distributed earnings to limited partners	18,967	8,638	40,707	22,447
Under (over) distributed earnings to general partners	$ 390	$ 164	$ 891	$ 428
Earnings per unit (basic and diluted):
Cash distributions declared and paid in the period per unit	$ 0.520	$ 0.510	$ 0.520	$ 1.510
Subsequent event: Cash distributions declared and paid per unit relating to the period	$ 0.520	$ 0.520	$ 0.520	$ 0.520
Common Units [Member]
Earnings Per Unit Basic And Diluted [Line Items]
Net income attributable to the partners of KNOT Offshore Partners LP			$ 35,655	$ 13,596
Under (over) distributed earnings attributable to:
Under (over) distributed earnings to limited partners	$ (4,243)	$ (4,247)	$ (3,480)	$ (12,816)
Weighted average units outstanding (basic and diluted)
Weighted average units outstanding, basic and diluted	27,194	18,807	22,817	16,005
Earnings per unit (basic and diluted):
Earnings per unit, basic and diluted	$ 0.697	$ 0.294	$ 1.563	$ 0.850
Subordinated Units [Member]
Earnings Per Unit Basic And Diluted [Line Items]
Net income attributable to the partners of KNOT Offshore Partners LP			$ 5,052	$ 8,851
Under (over) distributed earnings attributable to:
Under (over) distributed earnings to limited partners		$ (1,935)		$ (5,838)
Weighted average units outstanding (basic and diluted)
Weighted average units outstanding, basic and diluted		8,568	4,377	8,568
Earnings per unit (basic and diluted):
Earnings per unit, basic and diluted		$ 0.362	$ 1.154	$ 1.033
General Partner Unit [Member]
Earnings Per Unit Basic And Diluted [Line Items]
Net income attributable to the partners of KNOT Offshore Partners LP			$ 891	$ 428
Under (over) distributed earnings attributable to:
Under (over) distributed earnings to general partners	$ (87)	$ (126)	$ (72)	$ (381)
Weighted average units outstanding (basic and diluted)
Weighted average units outstanding, basic and diluted	559	559	559	467
Earnings per unit (basic and diluted):
Earnings per unit, basic and diluted	$ 0.697	$ 0.294	$ 1.594	$ 0.915

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Earnings per Unit and Cash Distributions - Schedule of Calculations of Basic and Diluted Earnings per Unit (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Unit Basic And Diluted [Line Items]
Subordinated units converted in to common units			One-for-one basis
Net Income	$ (4,330)	$ (6,308)	$ (3,551)	$ (19,035)
KNOT [Member]
Earnings Per Unit Basic And Diluted [Line Items]
Cash distributions	600	600	1,800	1,500
IDR Holders [Member]
Earnings Per Unit Basic And Diluted [Line Items]
Net Income	$ 600	$ 600	$ 1,800	$ 1,500

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Earnings per Unit and Cash Distributions - Additional Information (Detail) - shares		3 Months Ended				6 Months Ended	9 Months Ended
	Jun. 02, 2015	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Sep. 30, 2016	Dec. 31, 2014
Distribution Made to Limited Partner [Line Items]
Percentage of general partner interest	2.00%					2.00%
KNOT [Member]
Distribution Made to Limited Partner [Line Items]
Percentage of limited partner interest							0.30%
Number of common units and subordinated units outstanding		90,368					90,368
Common Units [Member]
Distribution Made to Limited Partner [Line Items]
Percentage of limited partner interest							66.80%
Number of common units and subordinated units outstanding		18,536,226					18,536,226
Percentage of partnership's units							68.20%
Subordinated Units [Member] | KNOT [Member]
Distribution Made to Limited Partner [Line Items]
Percentage of limited partner interest							30.90%
Number of common units and subordinated units outstanding		8,567,500					8,567,500
Percentage of partnership's units							31.50%
General Partner Unit [Member]
Distribution Made to Limited Partner [Line Items]
Number of General Partner Units Outstanding		558,674			558,674		558,674	456,633
General Partner Unit [Member] | KNOT [Member]
Distribution Made to Limited Partner [Line Items]
Percentage of general partner interest							2.01%
Number of General Partner Units Outstanding		558,674					558,674
IDR Holders [Member] | KNOT [Member] | Maximum [Member]
Distribution Made to Limited Partner [Line Items]
Percentage of operating surplus distributed to unitholders		48.00%	48.00%	48.00%	48.00%

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Business Acquisitions - Schedule of Purchase Price of Each Transaction (Detail) - USD ($)	Oct. 15, 2015	Jun. 15, 2015	Jun. 30, 2015
Less: Fair value of net assets acquired:
Goodwill			$ 0
Ingrid Knutsen [Member]
Business Acquisition [Line Items]
Purchase consideration	$ 12,863,000
Less: Fair value of net assets acquired:
Vessel and equipment	115,000,000
Cash	4,744,000
Inventories	144,000
Others current assets	188,000
Amounts due from related parties	1,000
Long-term debt	(84,275,000)
Long-term debt from related parties	(20,253,000)
Trade accounts payable	(94,000)
Accrued expenses	(1,555,000)
Prepaid charter and deferred revenue	(762,000)
Amounts due to related parties	(275,000)
Sub total	12,863,000
Difference between the purchase price and fair value of net assets acquired	0
Goodwill	0
Difference between the purchase price and allocated values	$ 0
Dan Sabia [Member]
Business Acquisition [Line Items]
Purchase consideration		$ 41,186,000
Less: Fair value of net assets acquired:
Vessel and equipment		103,389,000
Cash		4,343,000
Others current assets		25,000
Amounts due from related parties		935,000
Long-term debt		(64,470,000)
Derivatives liabilities		(802,000)
Trade accounts payable		(4,000)
Accrued expenses		(335,000)
Prepaid charter and deferred revenue		(442,000)
Amounts due to related parties		(1,453,000)
Sub total		41,186,000
Difference between the purchase price and fair value of net assets acquired		0
Goodwill		0
Difference between the purchase price and allocated values		$ 0

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Business Acquisitions - Schedule of Purchase Price of Each Transaction (Parenthetical) (Detail) - USD ($) $ in Thousands	Oct. 15, 2015	Jun. 15, 2015	Sep. 30, 2016
Ingrid Knutsen [Member]
Business Acquisition [Line Items]
Cash consideration paid to KNOT	$ 10,472
Purchase price adjustments	2,391
Total purchase consideration	12,863
Vessels and equipment	$ 115,000
Dan Sabia [Member]
Business Acquisition [Line Items]
Cash consideration paid to KNOT		$ 38,531
Purchase price adjustments		2,655
Total purchase consideration		41,186
Vessels and equipment		$ 103,389
Dry Docking [Member] | Ingrid Knutsen [Member]
Business Acquisition [Line Items]
Vessels and equipment			$ 1,263
Dry Docking [Member] | Dan Sabia [Member]
Business Acquisition [Line Items]
Vessels and equipment			$ 389

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Business Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands				1 Months Ended	3 Months Ended		4 Months Ended	9 Months Ended
	Oct. 15, 2015	Jun. 15, 2015	Jun. 02, 2015	Jun. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Revenues					$ 43,587	$ 39,284		$ 128,676	$ 112,487
Net Income					$ (4,330)	$ (6,308)		$ (3,551)	$ (19,035)
Dan Sabia [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of interest acquired		100.00%
Business acquisition, fair value of vessel and equipment acquired		$ 103,389
Business acquisition, outstanding debt		64,470
Purchase price adjustments		$ 2,655
Revenues							$ 2,900
Net Income							$ 1,500
Ingrid Knutsen [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of interest acquired	100.00%
Business acquisition, fair value of vessel and equipment acquired	$ 115,000
Business acquisition, outstanding debt	84,275
Purchase price adjustments	$ 2,391
Common Units [Member]
Business Acquisition [Line Items]
Common units issued			5,000,000	5,000,000					5,000,000
Common Units [Member] | Dan Sabia [Member]
Business Acquisition [Line Items]
Common units issued		5,000,000

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Business Acquisitions - Schedule of Summarized Consolidated Pro Forma Financial Information (Detail) - Dan Sabia [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Business Acquisition [Line Items]
Revenue	$ 116,984
Net income	$ 23,840

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Equity Offerings - Schedule of Equity Offerings (Detail) - USD ($) $ in Thousands		6 Months Ended	9 Months Ended
	Jun. 02, 2015	Jun. 30, 2015	Sep. 30, 2015
Equity [Abstract]
Gross proceeds received		$ 121,224
Less: Underwriters' discount		4,300
Less: Offering expenses		293	$ 293
Net proceeds received	$ 116,600	$ 116,631

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Equity Offerings - Schedule of Equity Offerings (Parenthetical) (Detail)		6 Months Ended
	Jun. 02, 2015	Jun. 30, 2015
Equity [Abstract]
General Partner's proportional capital contribution, percentage	2.00%	2.00%

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Equity Offerings - Additional Information (Detail) - USD ($) $ in Thousands		1 Months Ended	6 Months Ended	9 Months Ended
	Jun. 02, 2015	Jun. 30, 2015	Jun. 30, 2015	Sep. 30, 2015
Subsidiary or Equity Method Investee [Line Items]
General partner's contribution	$ 2,400
General partner interest in Partnership, percentage	2.00%		2.00%
Net proceeds from public offering and related General Partner's contribution	$ 116,600		$ 116,631
Common Units [Member]
Subsidiary or Equity Method Investee [Line Items]
Limited partnership common units sold	5,000,000	5,000,000		5,000,000

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Unit Activity - Schedule of Movement in Number of Common Units, Subordinated Units and General Partner Units (Detail) - shares		1 Months Ended	6 Months Ended	9 Months Ended
	Jun. 02, 2015	Jun. 30, 2015	Jun. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Common Units [Member]
Class of Stock [Line Items]
Subordinated units converted to common units				8,567,500
Number of Units Issued	5,000,000	5,000,000			5,000,000
Repurchase program			(180,906)
Number of Units				27,194,094		18,626,594	13,807,500
General Partner Unit [Member]
Class of Stock [Line Items]
Number of Units Issued		102,041
Number of General Partner Units Outstanding				558,674		558,674	456,633
Subordinated Units [Member]
Class of Stock [Line Items]
Subordinated units converted to common units				(8,567,500)
Number of Units				8,567,500		8,567,500	8,567,500

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Unit Activity - Additional Information (Detail) - $ / shares	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2015	Sep. 30, 2016	Dec. 31, 2015	Aug. 12, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Subordinated units converted in to common units		One-for-one basis
Common Units [Member]
Class of Stock [Line Items]
Partners' Capital Account, Units Purchased	180,906
Partners capital account weighted average purchase price			$ 12.71
Number of Units		27,194,094	18,626,594		13,807,500
Common Units [Member] | KNOT [Member]
Class of Stock [Line Items]
Partners' Capital Account, Units Purchased		0	180,906
Common Units [Member] | General Partner [Member]
Class of Stock [Line Items]
Partners' Capital Account, Units Purchased		0	90,368
Subordinated Units [Member]
Class of Stock [Line Items]
Number of Units		8,567,500	8,567,500		8,567,500
Maximum [Member]
Class of Stock [Line Items]
Partnership authorized to repurchase common units		485,761		666,667
General Partner authorized to repurchase common units		242,965		333,333

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Subsequent Events - Additional Information (Detail) - USD ($)	Dec. 06, 2016	Dec. 01, 2016	Nov. 14, 2016	Jun. 30, 2015
Subsequent Event [Line Items]
Goodwill				$ 0
Subsequent Event [Member]
Subsequent Event [Line Items]
Cash distribution paid, date paid			Nov. 14, 2016
Cash distribution paid, per unit			$ 0.52
Cash distribution paid, aggregate			$ 15,000,000
Subsequent Event [Member] | Private Placement [Member] | Series A Preferred Unit [Member]
Subsequent Event [Line Items]
Gross proceeds from private placement of Preferred Units	$ 50,000,000
Preferred Units issued, price per unit	$ 24.00
Preferred Units issued	2,083,333
Preferred Units, interest rate on issue price	8.00%
Preferred Units additional units issuable	49,000,000
Proceeds from private placement of Preferred Units	$ 48,500,000
Subsequent Event [Member] | Raquel Knutsen [Member]
Subsequent Event [Line Items]
Business acquisition, fair value of vessel and equipment acquired		$ 116,500,000
Business acquisition, outstanding indebtedness		(103,519,000)
Post-closing adjustments		7,271,000
Indebtedness repaid		29,000,000
Secured credit facility outstanding		74,500,000
Final balloon payment to be paid		$ 30,500,000
Credit facility maturity date		Mar. 31, 2025
Credit facility interest rate description		LIBOR plus a margin of 2.0%
Credit facility interest rate		2.00%
Business acquisition, percentage of interest acquired		100.00%
Purchase price adjustment for capitalized fees related to financing		$ 1,100,000
Time charter period		10 years
Time charter expiration period		3 years
Time charter additional expiration period		2 years
Goodwill		$ 0
Subsequent Event [Member] | Raquel Knutsen [Member] | Sellers Credit [Member]
Subsequent Event [Line Items]
Credit facility amount		13,000,000
Subsequent Event [Member] | Raquel Knutsen [Member] | Sellers Loan [Member]
Subsequent Event [Line Items]
Credit facility amount		$ 12,000,000
Subsequent Event [Member] | Raquel Knutsen [Member] | Sellers Credit and Sellers Loan [Member]
Subsequent Event [Line Items]
Credit facility interest rate description		LIBOR plus a margin of 4.5%
Credit facility interest rate		4.50%
Credit facility maturity term		5 years

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Subsequent Events - Schedule of Purchase Price of Each Transaction (Detail) - Subsequent Event [Member] - Raquel Knutsen [Member] $ in Thousands	Dec. 01, 2016 USD ($)
Business Acquisition [Line Items]
Purchase consideration	$ 20,252
Less: Fair value of net assets acquired:
Vessel and equipment	116,500
Long-term debt	(103,519)
Post-closing adjustments	7,271
Sub total	20,252
Difference between the purchase price and fair value of net assets acquired	$ 0