Document

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
 
 
 
 
Form 10-Q
 
 
 
 
 
x
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 
For the quarterly period ended March 31, 2017
or
¨
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 
For the Transition Period from                    to                    
Commission File No. 001-36567
 
 
 
 
 
Westlake Chemical Partners LP
(Exact name of Registrant as specified in its charter)
 
 
 
 
 

Delaware
 
32-0436529
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification Number)
2801 Post Oak Boulevard, Suite 600
Houston, Texas 77056
(Address of principal executive offices, including zip code)
(713) 585-2900
(Registrant's telephone number, including area code)
Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     Yes   x     No   ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).     Yes   x     No   ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of "large accelerated filer," "accelerated filer", "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act (Check one):
Large accelerated filer
 
¨
 
Accelerated filer
 
x
Non-accelerated filer
 
¨ (Do not check if a smaller reporting company)
 
Smaller reporting company
 
¨
 
 
 
 
Emerging growth company
 
¨
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨  
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act)     Yes   ¨     No   x
The registrant had 14,373,615 common units and 12,686,115 subordinated units outstanding as of April 26, 2017.



INDEX

 
 
Item
Page
 
 
 
 


Table of Contents


PART I. FINANCIAL INFORMATION
Item 1. Financial Statements
WESTLAKE CHEMICAL PARTNERS LP
CONSOLIDATED BALANCE SHEETS
(Unaudited)
 
 
March 31,
2017
 
December 31,
2016
 
 
 
 
 
 
 
(in thousands of dollars,
except unit amounts)
ASSETS
 
 
 
 
Current assets
 
 
 
 
Cash and cash equivalents
 
$
122,974

 
$
88,900

Accounts receivable—Westlake Chemical Corporation ("Westlake")
 
82,065

 
126,977

Accounts receivable, net—third parties
 
19,863

 
12,085

Inventories
 
4,776

 
3,934

Prepaid expenses and other current assets
 
154

 
269

Total current assets
 
229,832

 
232,165

Property, plant and equipment, net
 
1,223,239

 
1,222,238

Other assets, net
 
 
 
 
Goodwill
 
5,814

 
5,814

Deferred charges and other assets, net
 
97,915

 
95,011

Total other assets, net
 
103,729

 
100,825

Total assets
 
$
1,556,800

 
$
1,555,228

LIABILITIES
 
 
 
 
Current liabilities
 
 
 
 
Accounts payable—Westlake
 
$
7,228

 
$
12,130

Accounts payable—third parties
 
15,295

 
9,930

Accrued liabilities
 
24,122

 
15,717

Total current liabilities
 
46,645

 
37,777

Long-term debt payable to Westlake
 
600,206

 
594,629

Deferred income taxes
 
1,828

 
1,736

Other liabilities
 
136

 
123

Total liabilities
 
648,815

 
634,265

Commitments and contingencies (Note 14)
 


 


EQUITY
 
 
 
 
Common unitholders—public (12,937,500 units issued and outstanding)
 
297,462

 
297,367

Common unitholder—Westlake (1,436,115 units issued and outstanding)
 
4,823

 
4,813

Subordinated unitholder—Westlake (12,686,115 units issued and outstanding)
 
42,626

 
42,534

General partner—Westlake
 
(242,341
)
 
(242,430
)
Accumulated other comprehensive income
 
289

 
200

Total Westlake Chemical Partners LP partners' capital
 
102,859

 
102,484

Noncontrolling interest in Westlake Chemical OpCo LP ("OpCo")
 
805,126

 
818,479

Total equity
 
907,985

 
920,963

Total liabilities and equity
 
$
1,556,800

 
$
1,555,228

The accompanying notes are an integral part of these consolidated financial statements.

1

Table of Contents


WESTLAKE CHEMICAL PARTNERS LP
CONSOLIDATED STATEMENTS OF OPERATIONS
(Unaudited)
 
 
Three Months Ended March 31,
 
 
2017

2016
 
 
 
 
 
 
 
(in thousands of dollars, except unit amounts and per unit data)
Revenue
 
 
 
 
Net sales—Westlake
 
$
212,930

 
$
231,260

Net co-product, ethylene and other sales—third parties
 
64,518

 
21,344

Total net sales
 
277,448

 
252,604

Cost of sales
 
179,487

 
142,190

Gross profit
 
97,961

 
110,414

Selling, general and administrative expenses
 
7,828

 
6,097

Income from operations
 
90,133

 
104,317

Other income (expense)
 
 
 
 
Interest expense—Westlake
 
(5,460
)
 
(1,231
)
Other income, net
 
1,658

 
84

Income before income taxes
 
86,331

 
103,170

Provision for income taxes
 
303

 
399

Net income
 
86,028

 
102,771

Less: Net income attributable to noncontrolling interest in OpCo
 
76,264

 
90,687

Net income attributable to Westlake Chemical Partners LP
 
$
9,764

 
$
12,084

Net income per limited partner unit attributable to Westlake Chemical Partners LP
   (basic and diluted)
 
 
 
 
Common units
 
$
0.35

 
$
0.45

Subordinated units
 
$
0.35

 
$
0.45

Weighted average limited partner units outstanding (basic and diluted)
 
 
 
 
Common units—public
 
12,937,500

 
12,937,500

Common units—Westlake
 
1,436,115

 
1,436,115

Subordinated units—Westlake
 
12,686,115

 
12,686,115

Distributions per common unit
 
$
0.3450

 
$
0.3080

The accompanying notes are an integral part of these consolidated financial statements.

2

Table of Contents


WESTLAKE CHEMICAL PARTNERS LP
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(Unaudited)
 
 
Three Months Ended March 31,
 
 
2017
 
2016
 
 
 
 
 
 
 
(in thousands of dollars)
Net income
 
$
86,028

 
$
102,771

Other comprehensive income (loss)
 
 
 
 
Cash flow hedge
 
 
 
 
Interest rate contract
 
 
 
 
Change in fair value of cash flow hedge
 
58

 
(827
)
Reclassification of loss to net income
 
31

 
96

Total other comprehensive income (loss)
 
89

 
(731
)
Comprehensive income
 
86,117

 
102,040

Comprehensive income attributable to noncontrolling interest in OpCo
 
76,264

 
90,687

Comprehensive income attributable to Westlake Chemical Partners LP
 
$
9,853

 
$
11,353

The accompanying notes are an integral part of these consolidated financial statements.

3

Table of Contents


WESTLAKE CHEMICAL PARTNERS LP
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY
(Unaudited)
 
 
Common Unitholders
Public
 
Common Unitholder
Westlake
 
Subordinated Unitholder
Westlake
 
General
Partner
Westlake
 
Accumulated
Other
Comprehensive 
Income (Loss)
 
Noncontrolling
Interests
in OpCo
 
Total
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(in thousands of dollars)
Balances at December 31, 2015
 
$
294,565

 
$
4,502

 
$
39,786

 
$
(242,572
)
 
$
280

 
$
750,606

 
$
847,167

Net income
 
5,777

 
641

 
5,664

 
2

 

 
90,687

 
102,771

Net effect of cash flow hedge
 

 

 

 

 
(731
)
 

 
(731
)
Quarterly distributions to unitholders
 
(3,985
)
 
(442
)
 
(3,907
)
 

 

 

 
(8,334
)
Quarterly distribution to noncontrolling interest retained in
   OpCo by Westlake
 

 

 

 

 

 
(75,650
)
 
(75,650
)
Balances at March 31, 2016
 
$
296,357

 
$
4,701

 
$
41,543

 
$
(242,570
)
 
$
(451
)
 
$
765,643

 
$
865,223

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Balances at December 31, 2016
 
$
297,367

 
$
4,813

 
$
42,534

 
$
(242,430
)
 
$
200

 
$
818,479

 
$
920,963

Net income
 
4,559

 
505

 
4,469

 
231

 

 
76,264

 
86,028

Net effect of cash flow hedge
 

 

 

 

 
89

 

 
89

Quarterly distributions to unitholders
 
(4,464
)
 
(495
)
 
(4,377
)
 
(142
)
 

 

 
(9,478
)
Quarterly distribution to noncontrolling interest retained in
   OpCo by Westlake
 

 

 

 

 

 
(89,617
)
 
(89,617
)
Balances at March 31, 2017
 
$
297,462

 
$
4,823

 
$
42,626

 
$
(242,341
)
 
$
289

 
$
805,126

 
$
907,985

The accompanying notes are an integral part of these consolidated financial statements.

4

Table of Contents


WESTLAKE CHEMICAL PARTNERS LP
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Unaudited)
 
 
Three Months Ended March 31,
 
 
2017
 
2016
 
 
 
 
 
 
 
(in thousands of dollars)
Cash flows from operating activities
 
 
 
 
Net income
 
$
86,028

 
$
102,771

Adjustments to reconcile net income to net cash provided by operating activities
 
 
 
 
Depreciation and amortization
 
30,150

 
20,396

Provision for doubtful accounts
 
975

 

(Gain)/loss from disposition of property, plant and equipment
 
(127
)
 
327

Gain on involuntary conversion of assets
 
(1,555
)
 

Deferred income taxes
 
92

 
179

Changes in operating assets and liabilities
 
 
 
 
Accounts receivable—third parties
 
(8,753
)
 
5,862

Net accounts receivable—Westlake
 
40,010

 
(24,649
)
Inventories
 
(842
)
 
1,289

Prepaid expenses and other current assets
 
115

 
110

Accounts payable
 
5,150

 
7,610

Accrued and other liabilities
 
7,461

 
2,575

Other, net
 
(9,626
)
 
(3,895
)
Net cash provided by operating activities
 
149,078

 
112,575

Cash flows from investing activities
 
 
 
 
Additions to property, plant and equipment
 
(23,168
)
 
(79,091
)
Proceeds from disposition of assets
 
127

 
98

Insurance recovery for involuntary conversion
 
1,555

 

Net cash used for investing activities
 
(21,486
)
 
(78,993
)
Cash flows from financing activities
 
 
 
 
Proceeds from debt payable to Westlake
 
17,000

 
59,519

Repayment of debt payable to Westlake
 
(11,423
)
 

Quarterly distributions to noncontrolling interest retained in OpCo by Westlake
 
(89,617
)
 
(75,650
)
Quarterly distributions to unitholders
 
(9,478
)
 
(8,334
)
Net cash used for financing activities
 
(93,518
)
 
(24,465
)
Net increase in cash and cash equivalents
 
34,074

 
9,117

Cash and cash equivalents at beginning of period
 
88,900

 
169,559

Cash and cash equivalents at end of period
 
$
122,974

 
$
178,676

The accompanying notes are an integral part of these consolidated financial statements.

5

Table of Contents
WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)


1. Description of Business and Basis of Presentation
Description of Business
Westlake Chemical Partners LP (the "Partnership") is a Delaware limited partnership formed in March 2014 to operate, acquire and develop ethylene production facilities and related assets. On August 4, 2014, the Partnership completed its initial public offering (the "IPO") of 12,937,500 common units representing limited partner interests. In connection with the IPO, the Partnership acquired a 10.6% interest in Westlake Chemical OpCo LP ("OpCo") and a 100% interest in Westlake Chemical OpCo GP LLC ("OpCo GP"), which is the general partner of OpCo. On April 29, 2015, the Partnership purchased an additional 2.7% newly-issued limited partner interest in OpCo for approximately $135,341, resulting in an aggregate 13.3% limited partner interest in OpCo effective April 1, 2015. OpCo owns three ethylene production facilities and a common carrier ethylene pipeline.
Basis of Presentation
The accompanying unaudited consolidated interim financial statements were prepared in accordance with the rules and regulations of the Securities and Exchange Commission (the "SEC") for interim periods. Accordingly, certain information and footnotes required for complete financial statements under generally accepted accounting principles in the United States ("U.S. GAAP") have not been included. These interim consolidated financial statements should be read in conjunction with the December 31, 2016 combined and consolidated financial statements and notes thereto of the Partnership included in the annual report on Form 10-K for the fiscal year ended December 31, 2016 (the "2016 Form 10-K"), filed with the SEC on March 7, 2017. These financial statements have been prepared in conformity with the accounting principles and practices as disclosed in the notes to the combined and consolidated financial statements of the Partnership for the fiscal year ended December 31, 2016.
References to "Westlake" refer collectively to Westlake Chemical Corporation and its subsidiaries, other than the Partnership, OpCo and OpCo GP.
The Partnership holds a 13.3% limited partner interest and the entire non-economic general partner interest in OpCo. The remaining 86.7% limited partner interest in OpCo is owned by Westlake, which has no rights to direct the activities that most significantly impact the economic performance of OpCo. As a result of the fact that substantially all of OpCo's activities are conducted on behalf of Westlake, and the fact that OpCo exhibits disproportionality of voting rights to economic interest, OpCo was deemed to be a variable interest entity. The Partnership, through its ownership of OpCo's general partner, has the power to direct the activities that most significantly impact the economic performance of OpCo, and it also has the obligation or right to absorb losses or receive benefits from OpCo that could potentially be significant to OpCo. As such, the Partnership was determined to be OpCo's primary beneficiary and therefore consolidates OpCo's results of operations and financial position. Westlake's retained interest of 86.7% is recorded as noncontrolling interest in the Partnership's consolidated financial statements.
In the opinion of the Partnership's management, the accompanying unaudited consolidated interim financial statements reflect all adjustments (consisting only of normal recurring adjustments) that are necessary for a fair statement of the Partnership's financial position as of March 31, 2017, its results of operations for the three months ended March 31, 2017 and 2016 and the changes in its cash position for the three months ended March 31, 2017 and 2016.
Results of operations and changes in cash position for the interim periods presented are not necessarily indicative of the results that will be realized for the fiscal year ending December 31, 2017 or any other interim period. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities. Actual results could differ materially from those estimates.

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Table of Contents
WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTSContinued
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)

Recent Accounting Pronouncements
Revenue from Contracts with Customers (ASU No. 2014-09)
In May 2014, the Financial Accounting Standards Board ("FASB") issued an accounting standards update on a comprehensive new revenue recognition standard that will supersede the existing revenue recognition guidance. The new accounting guidance creates a framework by which an entity will allocate the transaction price to separate performance obligations and recognize revenue when each performance obligation is satisfied. Under the new standard, entities will be required to use judgment and make estimates, including identifying performance obligations in a contract, estimating the amount of variable consideration to include in the transaction price, allocating the transaction price to each separate performance obligation and determining when an entity satisfies its performance obligations. The standard allows for either "full retrospective" adoption, meaning that the standard is applied to all of the periods presented with a cumulative catch-up as of the earliest period presented, or "modified retrospective" adoption, meaning the standard is applied only to the most current period presented in the financial statements with a cumulative catch-up as of the current period. In 2016, the FASB issued various additional authoritative guidance for the new revenue recognition standard. The accounting standard will be effective for reporting periods beginning after December 15, 2017. The Partnership is in the process of evaluating the impact that the new accounting standard will have on its consolidated financial position, results of operations and cash flows.
Leases (ASU No. 2016-02)
In February 2016, the FASB issued an accounting standards update on a new lease standard that will supersede the existing lease guidance. The standard requires a lessee to recognize assets and liabilities related to long-term leases that are classified as operating leases under current guidance on its balance sheet. An asset would be recognized related to the right to use the underlying asset and a liability would be recognized related to the obligation to make lease payments over the term of the lease. The standard also requires expanded disclosures related to leases. The accounting standard will be effective for reporting periods beginning after December 15, 2018. The Partnership is in the process of evaluating the impact that the new accounting guidance will have on its consolidated financial position, results of operations and cash flows.
Credit Losses (ASU No. 2016-13)
In June 2016, the FASB issued an accounting standards update providing new guidance for the accounting for credit losses on loans and other financial instruments. The new guidance introduces an approach based on expected losses to estimate credit losses on certain types of financial instruments. The standard also modifies the impairment model for available-for-sale debt securities and provides for a simplified accounting model for purchased financial assets with credit deterioration since their origination. The accounting standard will be effective for reporting periods beginning after December 15, 2019. The Partnership is in the process of evaluating the impact that the new accounting guidance will have on its consolidated financial position, results of operations and cash flows.
Cash Flows (ASU No. 2016-15)
In August 2016, the FASB issued an accounting standards update providing new guidance on the classification of certain cash receipts and payments including debt extinguishment costs, debt prepayment costs, settlement of zero-coupon debt instruments, contingent consideration payments, proceeds from the settlement of insurance claims and life insurance policies and distributions received from equity method investees in the statement of cash flows. This update is required to be applied using the retrospective transition method to each period presented unless it is impracticable to be applied retrospectively. In such situation, this guidance is to be applied prospectively. The accounting standard will be effective for reporting periods beginning after December 15, 2017. The Partnership is in the process of evaluating the impact that the new accounting guidance will have on its consolidated financial position, results of operations and cash flows.
Business Combinations (ASU No. 2017-01)
In January 2017, the FASB issued an accounting standards update to assist entities with evaluating when a set of transferred assets and activities is a business. The guidance requires an entity to evaluate if substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets; if so, the set of transferred assets and activities is not a business. The guidance also requires a business to include at least one substantive process and narrows the definition of outputs by more closely aligning it with how outputs are described in the FASB ASC Topic 606, Revenue from contracts with customers. The accounting standard will be effective for reporting periods beginning

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Table of Contents
WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTSContinued
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)

after December 15, 2017. The Partnership is in the process of evaluating the impact that the new accounting guidance will have on its consolidated financial position, results of operations and cash flows. 
Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (ASU No. 2017-05)
In February 2017, the FASB issued an accounting standards update to clarify the scope of guidance related to other income—gains and losses from the derecognition of nonfinancial assets, and to add guidance for partial sales of nonfinancial assets. The new guidance clarifies that an in substance nonfinancial asset is an asset or group of assets for which substantially all of the fair value consists of nonfinancial assets and the group or subsidiary is not a business. The guidance also outlines that when an entity transfers its controlling interest in a nonfinancial asset, but retains a noncontrolling interest, it will measure the retained interest at fair value resulting in full gain or loss recognition upon sale of the controlling interest. The accounting standard will be effective for reporting periods beginning after December 15, 2017. The Partnership is in the process of evaluating the impact that the new accounting guidance will have on its consolidated financial position, results of operations and cash flows.
Recently Adopted Accounting Standard
Amendments to the Consolidation Analysis (ASU No. 2016-17)
In October 2016, the FASB issued an accounting standards update making certain changes to the current consolidation guidance. The amendments affect reporting entities that are required to evaluate whether they should consolidate a variable interest entity in certain situations involving entities under common control. Specifically, the amendments change the evaluation of whether a reporting entity is the primary beneficiary of a variable interest entity by changing how a reporting entity that is a single decision maker of a variable interest entity treats indirect interests in the entity held through related parties that are under common control with the reporting entity. The amendments became effective for annual periods beginning after December 15, 2016. The Partnership adopted this accounting standard effective January 1, 2017, and the adoption did not have any impact on the Partnership’s consolidated financial position, results of operations and cash flow.
2. Accounts Receivable—Third Parties
Accounts receivable—third parties consist of the following:
 
 
March 31,
2017
 
December 31,
2016
Trade customers
 
$
21,284

 
$
11,913

Allowance for doubtful accounts
 
(1,539
)
 
(564
)
 
 
19,745

 
11,349

Other
 
118

 
736

Accounts receivable, net—third parties
 
$
19,863

 
$
12,085

3. Inventories
Inventories consist of the following:


March 31,
2017

December 31,
2016
Finished products

$
4,397


$
3,610

Feedstock, additives and chemicals

379


324

Inventories

$
4,776


$
3,934


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Table of Contents
WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTSContinued
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)

4. Property, Plant and Equipment
As of March 31, 2017, the Partnership had property, plant and equipment, net totaling $1,223,239. The Partnership assesses these assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable, including when negative conditions such as significant current or projected operating losses exist. Other factors considered by the Partnership when determining if an impairment assessment is necessary include, but are not limited to, significant changes or projected changes in supply and demand fundamentals (which would have a negative impact on operating rates or margins), new technological developments, new competitors with significant raw material or other cost advantages, adverse changes associated with the U.S. and world economies and uncertainties associated with governmental actions. Long-lived assets assessed for impairment are grouped at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities.
Depreciation expense on property, plant and equipment of $23,413 and $16,553 is included in cost of sales in the consolidated statements of operations for the three months ended March 31, 2017 and 2016, respectively.
5. Other Assets
Amortization expense on other assets of $6,737 and $3,843 is included in costs of sales in the consolidated statements of operations for the three months ended March 31, 2017 and 2016, respectively.
 
 
6. Distributions and Net Income Per Limited Partner Unit
On May 1, 2017, the board of directors of Westlake Chemical Partners GP LLC ("Westlake GP"), the Partnership's general partner, declared a quarterly cash distribution for the period from January 1, 2017 through March 31, 2017 of $0.3549 per unit and of $231 to the holders of the Partnership's incentive distribution rights ("IDR Holders"). This distribution is payable on May 30, 2017 to unitholders and IDR Holders of record as of May 15, 2017.
The Partnership Agreement provides that the Partnership will distribute cash each quarter during the subordination period in the following manner: first, to the holders of common units, until each common unit has received the minimum quarterly distribution of $0.2750, plus any arrearages from prior quarters; second, to the holders of subordinated units, until each subordinated unit has received the minimum quarterly distribution of $0.2750; and third, to the holders of common and subordinated units, pro-rata, until each unit has received a distribution of $0.3163. If cash distributions to the Partnership's unitholders exceed $0.3163 per common unit and subordinated unit in any quarter, the Partnership's unitholders and Westlake, as the holder of the Partnership's incentive distribution rights, will receive distributions according to the following percentage allocations:
 
 
Marginal Percentage Interest in Distributions
Total Quarterly Distribution Per Unit
 
Unitholders
 
IDR Holders
Above $0.3163 up to $0.3438
 
85.0
%
 
15.0
%
Above $0.3438 up to $0.4125
 
75.0
%
 
25.0
%
Above $0.4125
 
50.0
%
 
50.0
%
For the three months ended March 31, 2017, the Partnership's distribution exceeded the $0.3163 per common and subordinated unit target, which resulted in distributions to the IDR Holders.

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WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTSContinued
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)

The distributions are declared subsequent to quarter end; therefore, the table below represents total distributions declared from earnings of the related periods pertaining to such distributions.


Three Months Ended March 31,
 
 
2017
 
2016
Net income attributable to the Partnership

$
9,764

 
$
12,084

Less:
 
 
 
 
Limited partners' distribution declared on common units

5,101

 
4,554

Limited partners' distribution declared on subordinated units

4,502

 
4,019

Distribution declared with respect to the incentive distribution rights
 
231

 
2

(Distribution in excess of net income) net income in excess of distribution

$
(70
)
 
$
3,509

Net income per unit applicable to common limited partner units and to subordinated limited partner units is computed by dividing the respective limited partners' interest in net income by the weighted-average number of common units and subordinated units outstanding for the period. Because the Partnership has more than one class of participating securities, it uses the two-class method when calculating the net income per unit applicable to limited partners. The classes of participating securities include common units, subordinated units and incentive distribution rights. Net income attributable to the Partnership is allocated to the unitholders in accordance with their respective ownership percentages in preparation of the consolidated statement of equity. However, when distributions related to the incentive distribution rights are made, net income equal to the amount of those distributions is first allocated to the general partner before the remaining net income is allocated to the unitholders based on their respective ownership percentages. Basic and diluted net income per unit is the same because the Partnership does not have any potentially dilutive units outstanding for the periods presented.
 
 
Three Months Ended March 31, 2017
 
 
Limited Partners' Common Units
 
Limited Partners' Subordinated Units
 
Incentive Distribution Rights
 
Total
Net income attributable to the Partnership:
 
 
 
 
 
 
 
 
Distribution declared
 
$
5,101

 
$
4,502

 
$
231

 
$
9,834

Distribution in excess of net income
 
(37
)
 
(33
)
 

 
(70
)
Net income
 
$
5,064

 
$
4,469

 
$
231

 
$
9,764

Weighted average units outstanding:
 
 
 
 
 
 
 
 
Basic and diluted
 
14,373,615

 
12,686,115

 
 
 
27,059,730

Net income per limited partner unit:
 
 
 
 
 
 
 
 
Basic and diluted
 
$
0.35

 
$
0.35

 
 
 
 
 
 
Three Months Ended March 31, 2016
 
 
Limited Partners' Common Units
 
Limited Partners' Subordinated Units
 
Incentive Distribution Rights
 
Total
Net income attributable to the Partnership:
 
 
 
 
 
 
 
 
Distribution declared
 
$
4,554

 
$
4,019

 
$
2

 
$
8,575

Net income in excess of distribution
 
1,864

 
1,645

 

 
3,509

Net income
 
$
6,418

 
$
5,664

 
$
2

 
$
12,084

Weighted average units outstanding:
 
 
 
 
 
 
 
 
Basic and diluted
 
14,373,615

 
12,686,115

 
 
 
27,059,730

Net income per limited partner unit:
 
 
 
 
 
 
 
 
Basic and diluted
 
$
0.45

 
$
0.45

 
 
 
 
 
 
 
 

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WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTSContinued
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)

7. Related Party Transactions
The Partnership and OpCo regularly enter into related party transactions with Westlake. See below for a description of transactions with related parties.
Sales to Related Parties
OpCo sells ethylene to Westlake under the Amended Ethylene Sales Agreement. Additionally, the Partnership and OpCo from time to time provide other services or products for which each charges Westlake a fee.
Sales to related parties were as follows:
 
 
Three Months Ended March 31,
 
 
2017
 
2016
Net sales—Westlake
 
$
212,930

 
$
231,260

Under the Services and Secondment Agreement, OpCo uses a portion of its production capacity to process purge gas for Westlake. On August 4, 2016, OpCo and Westlake entered into an amendment to the Ethylene Sales Agreement in order to provide that certain of the pricing components that make up the price for ethylene sold thereunder would be modified to reflect the portion of OpCo's production capacity that is used to process Westlake's purge gas instead of producing ethylene and to clarify that costs specific to the processing of Westlake's purge gas would be recovered under the Services and Secondment Agreement, and not the Ethylene Sales Agreement.
Cost of Sales from Related Parties
Charges for goods and services purchased by the Partnership and OpCo from Westlake and included in cost of sales relate primarily to feedstock purchased under the Feedstock Supply Agreement and services provided under the Services and Secondment Agreement.
Charges from related parties in cost of sales were as follows:
 
 
Three Months Ended March 31,
 
 
2017
 
2016
Feedstock purchased from Westlake and included in cost of sales
 
$
97,113

 
$
66,108

Other charges from Westlake and included in cost of sales
 
25,417

 
20,453

Total
 
$
122,530

 
$
86,561

Services from Related Parties Included in Selling, General and Administrative Expenses
Charges for services purchased by the Partnership from Westlake and included in selling, general and administrative expenses primarily relate to services Westlake performs on behalf of the Partnership under the Omnibus Agreement, including the Partnership's finance, legal, information technology, human resources, communication, ethics and compliance, and other administrative functions.
Charges from related parties included within selling, general and administrative expenses were as follows:
 
 
Three Months Ended March 31,
 
 
2017
 
2016
Services received from Westlake and included in selling, general and administrative
   expenses
 
$
6,732

 
$
5,468

Goods and Services from Related Parties Capitalized as Assets
Charges for goods and services purchased by the Partnership and OpCo from Westlake which were capitalized as assets relate primarily to the services of Westlake employees under the Services and Secondment Agreement.

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WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTSContinued
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)

Charges from related parties for goods and services capitalized as assets were as follows:
 
 
Three Months Ended March 31,
 
 
2017
 
2016
Goods and services purchased from Westlake and capitalized as assets
 
$
10,384

 
$
2,007

Accounts Receivable from and Accounts Payable to Related Parties
The Partnership's accounts receivable from Westlake result primarily from ethylene sales to Westlake and the shortfall recoverable from Westlake under the Ethylene Sales Agreement. Under the Ethylene Sales Agreement, if production costs billed to Westlake on an annual basis are less than 95% of the actual production costs incurred by OpCo during the year, OpCo is entitled to recover the shortfall in the subsequent year. The shortfall is recognized in the period when such production activities occur. The shortfall recognized in 2016 is recoverable during 2017, per the Ethylene Sales Agreement. During 2016, Calvert City Olefins experienced a shutdown caused by a mechanical failure, which resulted in a force majeure event under the Ethylene Sales Agreement. Based on the annual year-end measurement, a buyer deficiency fee of $13,106 was recognized as a receivable from Westlake and as a component of net sales in the consolidated financial statements as of and for the year ended December 31, 2016. The buyer deficiency fee was collected from Westlake in January 2017.
The Partnership's accounts payable to Westlake result primarily from feedstock purchases under the Feedstock Supply Agreement and services provided under the Services and Secondment Agreement and the Omnibus Agreement.
The related party accounts receivable and accounts payable balances were as follows:


March 31,
2017

December 31,
2016
Accounts receivable—Westlake

$
82,065

 
$
126,977

Accounts payable—Westlake

(7,228
)
 
(12,130
)
Debt Payable to Related Parties
In connection with the IPO, OpCo assumed promissory notes payable to Westlake ("the August 2013 Promissory Notes") and entered into a senior unsecured revolving credit facility with Westlake. In April 2015, the Partnership entered into an unsecured revolving credit facility with Westlake. See Note 8 for a description of related party debt payable balances. Interest on related party debt payable balances for the three months ended March 31, 2017 and 2016 was $5,460 and $1,231, respectively. Interest on related party debt payable is presented as interest expense—Westlake in the consolidated statements of operations. Interest capitalized as a component of plant and equipment on related party debt was $398 and $2,386 for the three months ended March 31, 2017 and 2016, respectively. At March 31, 2017 and December 31, 2016, accrued interest on related party debt was $5,842 and $5,517, respectively, and is reflected as a component of accrued liabilities in the consolidated balance sheets.
Debt payable to related parties was as follows:
 
 
March 31,
2017
 
December 31,
2016
Long-term debt payable to Westlake
 
$
600,206

 
$
594,629

General
OpCo, together with other subsidiaries of Westlake not included in these consolidated financial statements, were guarantors under Westlake's revolving credit facility and the indentures governing its senior notes. During August 2016, OpCo and certain subsidiaries of Westlake were released from their guarantees.
In 2015, the Partnership entered into an interest rate contract with Westlake to fix the London Interbank Offered Rate ("LIBOR") component of the interest rate for a portion of the MLP Revolver balance. See Note 10 for additional information on the interest rate contract.

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WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTSContinued
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)

OpCo has two site lease agreements with Westlake, and each has a term of 50 years. Pursuant to the site lease agreements, OpCo pays Westlake one dollar per site per year.
8. Long-term Debt Payable to Westlake
Long-term debt payable to Westlake consists of the following:
 
 
March 31,
2017
 
December 31,
2016
August 2013 Promissory Notes (variable interest rate of prime plus 1.5%, original
   scheduled maturity of August 1, 2023)
 
$
31,775

 
$
31,775

OpCo Revolver (variable interest rate of LIBOR plus 3.0%, original scheduled maturity of
   August 4, 2019)

433,090

 
427,513

MLP Revolver (variable interest rate of LIBOR plus 2.0%, original scheduled maturity of
   April 29, 2018)
 
135,341

 
135,341

 
 
$
600,206

 
$
594,629

The weighted average interest rate on all long-term debt was 3.86% and 3.72% at March 31, 2017 and December 31, 2016, respectively.
As of March 31, 2017, the Partnership was in compliance with all of the covenants under the August 2013 Promissory Notes, the OpCo Revolver and the MLP Revolver.
9. Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive income or loss primarily reflects the effective portion of the gain or loss on derivative instrument designated and qualified as a cash flow hedge. Gain or loss amounts related to a cash flow hedge recorded in accumulated other comprehensive income or loss are reclassified to income in the same period in which the underlying hedged forecasted transaction affects income. If it becomes probable that a forecasted transaction will not occur, the related net gain or loss in accumulated other comprehensive income or loss is immediately reclassified into income.
Changes in accumulated other comprehensive income (loss) were as follows:
 
 
Three Months Ended March 31,
 
 
2017
 
2016
Balances at December 31,
 
$
200

 
$
280

Interest rate contract—Other comprehensive income (loss) before reclassification
 
58

 
(827
)
Interest rate contract—Amounts reclassified from accumulated other comprehensive loss
   into net income
 
31

 
96

Balances at March 31,
 
$
289

 
$
(451
)
10. Derivative Instruments
The accounting guidance for derivative instruments and hedging activities requires that the Partnership recognize all derivative instruments on the balance sheet at fair value, and changes in the derivative's fair value must be currently recognized in earnings or comprehensive income, depending on the designation of the derivative. If the derivative is designated as a fair value hedge, the changes in the fair value of the derivative and of the hedged item attributable to the hedged risk are recognized in earnings. If the derivative is designated as a cash flow hedge, the effective portion of the change in the fair value of the derivative is recorded in comprehensive income and is recognized in the statement of operations when the hedged item affects earnings. Ineffective portions of changes in the fair value of cash flow hedges are recognized in earnings currently.
Interest Rate Risk Management
During August 2015, the Partnership entered into an interest rate contract with Westlake designed to reduce the risks of variability of the interest rate under the MLP Revolver. The interest rate contract fixed the LIBOR component of the interest rate for a portion of the MLP Revolver balance. This contract was designated as a cash flow hedge. With the exception of this

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WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTSContinued
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)

interest rate contract, the Partnership did not have any other derivative financial instruments during the three months ended March 31, 2017 and 2016.
The fair values of the derivative instrument on the Partnership's consolidated balance sheets were as follows:
 
 
Derivative Assets
Derivative in Cash Flow Hedging Relationship
 
Balance Sheet Location
 
Fair Value as of
 
 
March 31,
2017
 
December 31,
2016
Interest rate contract
 
Deferred charges and other assets, net
 
$
362

 
$
290

The following tables present the effect of the derivative instrument designated as cash flow hedge on the consolidated statements of operations and the consolidated statements of comprehensive income for the three months ended March 31, 2017 and 2016:
Derivative in Cash Flow Hedging Relationship
 
Location of Loss Recognized in Statement of Operations
 
Three Months Ended March 31,
 
 
 
 
2017
 
2016
Interest rate contract—Loss reclassified
   from accumulated other
   comprehensive loss
 
Interest expense
 
$
(31
)
 
$
(96
)
Derivative in Cash Flow Hedging Relationship
 
Three Months Ended March 31,
 
 
2017
 
2016
Interest rate contract—Adjustments to fair value recognized in other comprehensive income
 
$
(58
)
 
$
827

There was no ineffective portion of the derivative instrument during the three months ended March 31, 2017 and 2016.
See Note 11 for the fair value of derivative instruments.
11. Fair Value Measurements
The Partnership reports certain assets and liabilities at fair value, which is defined as the price 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 (exit price). Under the accounting guidance for fair value measurements, inputs used to measure fair value are classified in one of three levels:
Level 1: Quoted market prices in active markets for identical assets or liabilities.
Level 2: Observable market-based inputs or unobservable inputs that are corroborated by market data.
Level 3: Unobservable inputs that are not corroborated by market data.
The following tables summarize, by level within the fair value hierarchy, the Partnership's liability and asset under the interest rate contract that was accounted for at fair value on a recurring basis:
 
 
March 31, 2017
 
 
Level 2
 
Total
Derivative instruments
 
 
 
 
Asset—Interest rate contract
 
$
362

 
$
362

 
 
December 31, 2016
 
 
Level 2
 
Total
Derivative instruments
 
 
 
 
Asset—Interest rate contract
 
$
290

 
$
290


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WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTSContinued
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)

The fair value of the Level 2 interest rate contract is determined using standard valuation methodologies which incorporate relevant contract terms along with readily available market data (i.e. the 3-month LIBOR forward curve). There were no transfers in or out of Levels 1 and 2 of the fair value hierarchy during the three months ended March 31, 2017.
The Partnership has other financial assets and liabilities subject to fair value measures. These financial assets and liabilities include accounts receivable, net, accounts payable and long-term debt payable to Westlake, all of which are recorded at carrying value. The amounts reported in the consolidated balance sheets for accounts receivable, net and accounts payable approximate their fair value due to the short maturities of these instruments. The carrying and fair values of the Partnership's long-term debt at March 31, 2017 and December 31, 2016 are summarized in the table below. The Partnership's long-term debt includes the August 2013 Promissory Notes, the OpCo Revolver and the MLP Revolver. The fair value of debt is determined based on the present value of expected future cash flows using a discounted cash flow methodology. Because the Partnership's valuation methodology used for long-term debt requires the use of significant unobservable inputs, the inputs used to measure the fair value of the Partnership's long-term debt are classified as Level 3 within the fair value hierarchy. Inputs used to estimate the fair values of the Partnership's long-term debt include the selection of an appropriate discount rate.
 
 
March 31, 2017
 
December 31, 2016
 
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
August 2013 Promissory Notes
 
$
31,775

 
$
31,775

 
$
31,775

 
$
31,775

OpCo Revolver
 
433,090

 
449,408

 
427,513

 
442,716

MLP Revolver
 
135,341

 
135,218

 
135,341

 
134,835

12. Supplemental Information
Accrued Liabilities
Accrued liabilities were $24,122 and $15,717 at March 31, 2017 and December 31, 2016, respectively. The capital expenditures accrual, accrued interest, accrued taxes, turnaround costs accrual and accrued maintenance, which are components of accrued liabilities, were $6,729, $5,842, $2,227, $4,162 and $3,115, respectively, at March 31, 2017, and $2,647, $5,517, $1,497, $945 and $2,586, respectively, at December 31, 2016. No other component of accrued liabilities was more than five percent of total current liabilities.
Non-cash Investing Activity
The change in capital expenditure accrual reducing additions to property, plant and equipment was $1,159 for the three months ended March 31, 2017. The change in capital expenditure accrual reducing additions to property, plant and equipment was $13,719 for the three months ended March 31, 2016.
Insurance Recovery
During the three months ended March 31, 2017, the Partnership received an insurance recovery of approximately $1,555 related to the Calvert City Olefins unplanned shut-down during 2016. The insurance recovery is included in other income in the consolidated statement of operations for the three months ended March 31, 2017.
13. Major Customer and Concentration of Credit Risk
During the three months ended March 31, 2017 and 2016, Westlake accounted for approximately 76.7% and 91.6%, respectively, of the Partnership's net sales.

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WESTLAKE CHEMICAL PARTNERS LP
NOTES TO CONSOLIDATED FINANCIAL STATEMENTSContinued
(Unaudited)
(in thousands of dollars, except unit amounts and per unit data)

14. Commitments and Contingencies
The Partnership is subject to environmental laws and regulations that can impose civil and criminal sanctions and that may require the Partnership to mitigate the effects of contamination caused by the release or disposal of hazardous substances into the environment. These laws include the federal Clean Air Act, the federal Water Pollution Control Act, the Resource Conservation and Recovery Act ("RCRA"), the Comprehensive Environmental Response, Compensation, and Liability Act ("CERCLA"), the Toxic Substances Control Act and various other federal, state and local laws and regulations. Under CERCLA, an owner or operator of property may be held strictly liable for remediating contamination without regard to whether that person caused the contamination, and without regard to whether the practices that resulted in the contamination were legal at the time they occurred. Because the Partnership's production sites have a history of industrial use, it is impossible to predict precisely what effect these legal requirements will have on the Partnership. Westlake will indemnify the Partnership for liabilities that occurred or existed prior to August 4, 2014.
Potential Flare Modifications. For several years, the EPA has been conducting an enforcement initiative against petroleum refineries and petrochemical plants with respect to emissions from flares. On April 21, 2014, Westlake received a Clean Air Act Section 114 Information Request from the EPA which sought information regarding flares at the Calvert City and Lake Charles facilities. The EPA has informed Westlake that the information provided leads the EPA to believe that some of the flares are out of compliance with applicable standards. The EPA has indicated that it is seeking a consent decree that would obligate Westlake to take corrective actions relating to the alleged noncompliance. Westlake believes the resolution of these matters may require the payment of a monetary sanction in excess of $100.
Louisiana Notice of Violations. The Louisiana Department of Environmental Quality ("LDEQ") has issued notices of violations ("NOVs") regarding the Partnership's assets, and those of Westlake, for various air and water compliance issues. The Partnership and Westlake negotiated two settlement agreements with the LDEQ fully resolving the NOVs as well as additional violations alleged by the LDEQ though not made the subject of any specific NOV for a combined $192 in civil penalties.
In addition to the matters described above, the Partnership is involved in various legal proceedings incidental to the conduct of its business. The Partnership does not believe that any of these legal proceedings will have a material adverse effect on its financial condition, results of operations or cash flows.
15. Subsequent Events
Distribution
On May 1, 2017, the board of directors of Westlake GP declared a quarterly distribution for the period from January 1, 2017 through March 31, 2017 of $0.3549 per unit and $231 to IDR Holders. This distribution is payable on May 30, 2017 to unitholders and IDR Holders of record as of May 15, 2017.
General
Subsequent events were evaluated through the date on which the financial statements were issued.

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Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations
This Management's Discussion and Analysis of Financial Condition and Results of Operations section should be read in conjunction with the accompanying consolidated financial statements and the notes thereto and the combined and consolidated financial statements and notes thereto included in Westlake Chemical Partners LP's annual report on Form 10-K for the fiscal year ended December 31, 2016 (the "2016 Form 10-K"), as filed with the SEC on March 7, 2017. Unless otherwise indicated, references in this report to "we," "our," "us" or like terms, refer to Westlake Chemical Partners LP (the "Partnership"), Westlake Chemical OpCo LP ("OpCo") and Westlake Chemical OpCo GP LLC ("OpCo GP"). References to "Westlake" refer to Westlake Chemical Corporation and its consolidated subsidiaries other than the Partnership, OpCo GP and OpCo. The following discussion contains forward-looking statements. Please read "Forward-Looking Statements" for a discussion of limitations inherent in such statements.
Partnership Overview
On August 4, 2014, we closed our initial public offering (the "IPO'") of 12,937,500 common units. We are a Delaware limited partnership formed by Westlake to operate, acquire and develop ethylene production facilities and related assets. Currently, our sole revenue generating asset is our 13.3% limited partner interest in OpCo, a limited partnership formed by Westlake and us in anticipation of the IPO to own and operate an ethylene production business. We control OpCo through our ownership of its general partner. Westlake retains the remaining 86.7% limited partner interest in OpCo as well as significant interest in us through its ownership of our general partner, 52.2% of our limited partner units (consisting of 1,436,115 common units and all of the subordinated units) and our incentive distribution rights. OpCo's assets include (1) two ethylene production facilities ("Petro 1" and "Petro 2" and, collectively, "Lake Charles Olefins") at Westlake's Lake Charles, Louisiana site; (2) one ethylene production facility ("Calvert City Olefins") at Westlake's Calvert City, Kentucky site; and (3) a 200-mile common carrier ethylene pipeline (the "Longview Pipeline") that runs from Mont Belvieu, Texas to Westlake's Longview, Texas facility.
How We Generate Revenue
We generate revenue primarily by selling ethylene and the resulting co-products we produce. OpCo and Westlake have entered into an ethylene sales agreement (the "Ethylene Sales Agreement") pursuant to which we generate a substantial majority of our revenue. The Ethylene Sales Agreement is a long-term, fee-based agreement with a minimum purchase commitment and includes variable pricing based on OpCo's actual feedstock and natural gas costs and estimated other costs of producing ethylene (including OpCo's estimated operating costs and a five-year average of OpCo's expected future maintenance capital expenditures and other turnaround expenditures based on OpCo's planned ethylene production capacity for the year), plus a fixed margin per pound of $0.10 less revenue from co-products sales.
Westlake has an option to take 95% of volumes in excess of the minimum commitment on an annual basis under the Ethylene Sales Agreement if we produce more than our planned production. Under the Ethylene Sales Agreement, the price for the sale of such excess ethylene to Westlake is based on a formula similar to that used for the minimum purchase commitment, with the exception of certain fixed costs. In addition, under the Ethylene Sales Agreement, if production costs billed to Westlake on an annual basis are less than 95% of the actual production costs incurred by OpCo during the contract year, OpCo is entitled to recover the shortfall in such production costs (proportionate to the volume sold to Westlake) in the subsequent year ("Shortfall"). The Shortfall is recognized during the period in which the related operating, maintenance or turnaround activities occur.
Operating Expenses, Maintenance Capital Expenditures and Turnaround Costs
Our management seeks to maximize the profitability of our operations by effectively managing operating expenses, maintenance capital expenditures and turnaround costs. Our operating expenses are comprised primarily of feedstock costs and natural gas, labor expenses (including contractor services), utility costs (other than natural gas) and turnaround and maintenance expenses. With the exception of feedstock, including natural gas, and utilities-related expenses, operating expenses generally remain relatively stable across broad ranges of production volumes but can fluctuate from period to period depending on the circumstances, particularly maintenance and turnaround activities. Our maintenance capital expenditures and turnaround costs are comprised primarily of maintenance of our ethylene production facilities and the amortization of capitalized turnaround costs. These capital expenditures relate to the maintenance and integrity of our facilities. We capitalize the costs of major maintenance activities, or turnarounds, and amortize the costs over the period until the next planned turnaround of the affected facility.
Operating expenses, maintenance capital expenditures and turnaround costs are built into the price per pound of ethylene charged to Westlake under the Ethylene Sales Agreement. Because the expenses other than feedstock costs and natural gas are based on forecasted amounts and remain a fixed component of the price per pound of ethylene sold under the Ethylene Sales Agreement for any given 12-month period, our ability to manage operating expenses, maintenance expenditures and turnaround

17

Table of Contents


cost may directly affect our profitability and cash flows. The impact on profitability is partially mitigated by the fact that we recognize any Shortfall as revenue in the period such costs and expenses are incurred. We seek to manage our operating and maintenance expenses on our ethylene production facilities by scheduling maintenance and turnarounds over time to avoid significant variability in our operating margins and minimize the impact on our cash flows, without compromising our commitment to safety and environmental stewardship. In addition, we reserve cash on an annual basis from what we would otherwise distribute to minimize the impact of turnaround costs in the year of incurrence. The purchase price under the Ethylene Sales Agreement is not designed to cover capital expenditures for expansions.
MLP Distributable Cash Flow and EBITDA
We use each of MLP distributable cash flow and EBITDA to analyze our performance. We define distributable cash flow as net income plus depreciation and amortization, less contributions for turnaround reserves and maintenance capital expenditures. We define MLP distributable cash flow as distributable cash flow less distributable cash flow attributable to Westlake's noncontrolling interest in OpCo and distributions attributable to the incentive distribution rights holder. MLP distributable cash flow does not reflect changes in working capital balances. We define EBITDA as net income before interest expense, income taxes, depreciation and amortization. MLP distributable cash flow and EBITDA are non-GAAP supplemental financial measures that management and external users of our consolidated financial statements, such as industry analysts, investors, lenders and rating agencies, may use to assess:
our operating performance as compared to other publicly traded partnerships;
our ability to incur and service debt and fund capital expenditures;
the viability of acquisitions and other capital expenditure projects and the returns on investment of various investment opportunities.
We believe that the presentation of MLP distributable cash flow and EBITDA provides useful information to investors in assessing our financial condition and results of operations. The GAAP measures most directly comparable to MLP distributable cash flow are net income and net cash provided by operating activities. MLP distributable cash flow should not be considered as an alternative to GAAP net income or net cash provided by operating activities. MLP distributable cash flow has important limitations as an analytical tool because it excludes some but not all items that affect net income and net cash provided by operating activities. The GAAP measures most directly comparable to EBITDA are net income and net cash provided by operating activities, but EBITDA should not be considered an alternative to such GAAP measures. EBITDA has important limitations as an analytical tool because it excludes (1) interest expense, which is a necessary element of our costs and ability to generate revenues because we have borrowed money to finance our operations, (2) depreciation, which is a necessary element of our costs and ability to generate revenues because we use capital assets and (3) income taxes, which was a necessary element of the operations of our predecessor. MLP distributable cash flow and EBITDA should not be considered in isolation or as a substitute for analysis of our results as reported under GAAP. See reconciliations for each of MLP distributable cash flow and EBITDA under "Results of Operations" below.
Recent Developments
We completed the upgrade and capacity expansion of our Calvert City Olefins facility in April 2017. The expansion, along with other initiatives, is expected to increase ethylene capacity of Calvert City Olefins by approximately 100 million pounds annually to a total annual ethylene capacity of 730 million pounds.

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Results of Operations
 
 
Three Months Ended March 31,
 
 
2017
 
2016
 
 
 
 
 
 
 
(dollars in thousands)
Revenue
 
 
 
 
Net sales—Westlake
 
$
212,930

 
$
231,260

Net co-product, ethylene and other sales—third parties
 
64,518

 
21,344

Total net sales
 
277,448

 
252,604

Cost of sales
 
179,487

 
142,190

Gross profit
 
97,961

 
110,414

Selling, general and administrative expenses
 
7,828

 
6,097

Income from operations
 
90,133

 
104,317

Other income (expense)
 
 
 
 
Interest expense—Westlake
 
(5,460
)
 
(1,231
)
Other income, net
 
1,658

 
84

Income before income taxes
 
86,331

 
103,170

Provision for income taxes
 
303

 
399

Net income
 
86,028

 
102,771

Less: Net income attributable to noncontrolling interest in OpCo
 
76,264

 
90,687

Net income attributable to Westlake Chemical Partners LP
 
$
9,764

 
$
12,084

MLP distributable cash flow (1)
 
$
11,447

 
$
9,515

EBITDA (2)
 
$
121,941

 
$
124,797

____________
 
 
 
 
 
(1) See "Reconciliation of MLP Distributable Cash Flow to Net Income and Net Cash Provided by Operating Activities" below.
(2) See "Reconciliation of EBITDA to Net Income and Net Cash Provided by Operating Activities" below.
 
 
Three Months Ended March 31, 2017
 
 
Average
Sales Price
 
Volume
Product sales prices and volume percentage change from prior-year period
 
+9.3
%
 
+0.5
%
 
 
 
 
 
 
 
Three Months Ended March 31,
 
 
2017
 
2016
Average industry prices (1)
 
 
 
 
Ethane (cents/lb)
 
7.8

 
5.3

Propane (cents/lb)
 
16.9

 
9.1

Ethylene (cents/lb) (2)
 
31.2

 
21.1

_____________
(1)
Industry pricing data was obtained through IHS Chemical. We have not independently verified the data.
(2)
Represents average North American spot prices of ethylene over the period as reported by IHS Chemical.

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Reconciliation of MLP Distributable Cash Flow to Net Income and Net Cash Provided by Operating Activities
The following table presents reconciliations of MLP distributable cash flow to net income and net cash provided by operating activities, the most directly comparable GAAP financial measures, for each of the periods indicated.
 
 
Three Months Ended March 31,
 
 
2017
 
2016
 
 
(dollars in thousands)
Net cash provided by operating activities
 
$
149,078

 
$
112,575

Changes in operating assets and liabilities and other
 
(62,110
)
 
(9,298
)
Provision for doubtful accounts
 
(975
)
 

Gain/(loss) from disposition of fixed assets
 
127


(327
)
Deferred income taxes
 
(92
)

(179
)
Net Income
 
86,028


102,771

Add:
 
 

 
Depreciation and amortization (1)
 
30,150


20,396

Less:
 
 
 
 
Contribution to turnaround reserves
 
(7,239
)
 
(6,124
)
Maintenance capital expenditures (2)
 
(8,490
)
 
(33,610
)
Incentive distribution rights
 
(231
)
 
(2
)
Distributable cash flow attributable to noncontrolling interest in OpCo
 
(88,771
)
 
(73,916
)
MLP distributable cash flow
 
$
11,447

 
$
9,515

_____________
(1)
Lower maintenance capital expenditures in the first three months of 2017 as compared to the first three months of 2016 are primarily related to the Lake Charles Petro 1 facility maintenance capital expenditures incurred in the first three months of 2016.
(2)
Higher depreciation and amortization in the first three months of 2017 as compared to the first three months of 2016 are primarily related to the increase in the property, plant and equipment and the turnaround deferred costs associated with the Lake Charles Petro 1 facility expansion and turnaround project that was completed in July 2016.
Reconciliation of EBITDA to Net Income and Net Cash Provided by Operating Activities
The following table presents reconciliations of EBITDA to net income and net cash provided by operating activities, the most directly comparable GAAP financial measures, for each of the periods indicated.
 
 
Three Months Ended March 31,
 
 
2017
 
2016
 
 
(dollars in thousands)
Net cash provided by operating activities
 
$
149,078

 
$
112,575

Changes in operating assets and liabilities and other
 
(62,110
)
 
(9,298
)
Provision for doubtful accounts
 
(975
)
 

Gain/(loss) from disposition of fixed assets
 
127

 
(327
)
Deferred income taxes
 
(92
)
 
(179
)
Net Income
 
86,028

 
102,771

Add:
 
 
 
 
Depreciation and amortization
 
30,150

 
20,396

Interest expense
 
5,460

 
1,231

Provision for income taxes
 
303

 
399

EBITDA
 
$
121,941

 
$
124,797


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Summary
For the quarter ended March 31, 2017, net income was $86.0 million on net sales of $277.4 million. This represents a decrease in net income of $16.8 million as compared to the quarter ended March 31, 2016 net income of $102.8 million on net sales of $252.6 million. Net income attributable to Westlake Chemical Partners LP for the quarter ended March 31, 2017 was $9.8 million as compared to $12.1 million for the quarter ended March 31, 2016, a decline of $2.3 million which was consistent with the decline in net income. Net sales for the first quarter of 2017 increased by $24.8 million as compared to net sales for the first quarter of 2016 mainly attributable to higher sales prices to third parties and to Westlake, partially offset by the Shortfall of approximately $11.8 million recognized in the first quarter of 2016 as compared to the first quarter of 2017. Income from operations was $90.1 million for the first quarter of 2017 as compared to $104.3 million for the first quarter of 2016. Income from operations and net income for the first quarter of 2017 decreased mainly as a result of the Shortfall of approximately $11.8 million recognized in the first quarter of 2016 as compared to the first quarter of 2017, higher depreciation and amortization expense and higher selling, general and administrative expenses in the first quarter of 2017 as compared to the first quarter of 2016.
RESULTS OF OPERATIONS
First Quarter 2017 Compared with First Quarter 2016
Net Sales. Total net sales increased by $24.8 million, or 9.8%, to $277.4 million in the first quarter of 2017 from $252.6 million in the first quarter of 2016. The overall increase in sales price of ethylene and related co-products for the first quarter of 2017 by 9.3% was primarily due to higher third party sales prices, partially offset by the Shortfall recognized as a component of net sales for the first quarter of 2016, as compared to the first quarter of 2017. Sales volumes for the first quarter of 2017 contributed an increase in net sales of 0.5%, as compared to the first quarter of 2016, due to higher third party sales, partially offset by lower sales volume to Westlake. Ethylene production at the Lake Charles Petro I facility increased during the first quarter of 2017 as a result of the upgrade and capacity expansion that was completed in July 2016, partially offset by lower production rates at the Lake Charles Petro 2 facility and at the Calvert City Olefins facility due to the upgrade and expansion that began at the facility in March 2017, as compared to the first quarter of 2016.
Gross Profit. Gross profit decreased to $98.0 million for the first quarter of 2017 from $110.4 million for the first quarter of 2016. The gross profit margin in the first quarter of 2017 was 35.3%, as compared with 43.7% for the first quarter of 2016. The first quarter 2017 gross profit margin was lower due to the recognition of the Shortfall in the first quarter of 2016 and higher depreciation and amortization expense in the first quarter of 2017 as a result of the 2016 Lake Charles Petro 1 facility expansion and turnaround, partially offset by a higher sales volume to third parties, as compared to the first quarter of 2016.
Selling, General and Administrative Expenses. Selling, general and administrative expenses increased by $1.7 million, or 27.9%, to $7.8 million in the first quarter of 2017 as compared to $6.1 million in the first quarter of 2016. The increase was mainly attributable to an increase in the allowance for bad debt accounts and general and administrative expense allocation from Westlake during the first quarter 2017, as compared to the prior-year period.
Interest Expense. Interest expense increased by $4.3 million to $5.5 million in the first quarter of 2017 from $1.2 million in the first quarter of 2016, largely due to decreased capitalized interest on major projects in the first quarter of 2017 as compared to the first quarter of 2016 and a higher average debt balance to fund the capital expenditures related to the Lake Charles Petro 1 upgrade and expansion in 2016 and Calvert City Olefins upgrade and expansion that began in March 2017, as compared to the first quarter of 2016.
Other Income. The increase in other income in the first quarter of 2017 as compared to the first quarter of 2016, was primarily due to the recognition of an insurance recovery received for the Calvert City Olefins unplanned shut-down in 2016.
CASH FLOW DISCUSSION FOR THE THREE MONTHS ENDED MARCH 31, 2017 AND 2016
Operating Activities
Operating activities provided cash of $149.1 million in the first three months of 2017 compared to cash provided by operating activities of $112.6 million in the first three months of 2016. The $36.5 million increase in cash flows from operating activities was mainly due to an increase in cash provided by working capital as compared to the prior-year period. These increases were largely offset by the decrease in net income and increase in outflows related to the turnaround for the first three months of 2017, as compared to the first three months of 2016. Changes in components of working capital, which we define for the purposes of this cash flow discussion as accounts receivable—Westlake, accounts receivable, net—third parties, inventories, prepaid expenses and other current assets less accounts payable—Westlake, accounts payable—third parties and accrued liabilities, provided cash of $43.2 million in the first three months of 2017 as compared to $7.1 million of cash used in the first three months of 2016, resulting in an overall favorable change of $50.3 million. The change in working capital is mainly

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attributable to the favorable change in the Westlake accounts receivable balance offset by an unfavorable change in third party accounts receivable balance at March 31, 2017, as compared to the prior-year period. The increase in depreciation and amortization expense as compared to the same period in 2016 is directly related to the upgrade, expansion, and turnaround project for the Lake Charles Petro 1 facility that was completed in 2016.
Investing Activities
Net cash used for investing activities during the first three months of 2017 was $21.5 million as compared to net cash used for investing activities of $79.0 million in the first three months of 2016, mainly due to decreased capital expenditures in the first three months of 2017 as compared to the prior-year period. Capital expenditures during the first quarter of 2017 were primarily incurred for the Calvert City expansion while the same period in 2016 primarily reflected capital expenditures for the Lake Charles Petro 1 facility expansions and upgrade. The Lake Charles Petro 1 facility expansion and turnaround project was completed in July 2016.
Financing Activities
Net cash used for financing activities during the first three months of 2017 was $93.5 million as compared to net cash used for financing activities of $24.5 million in the first three months of 2016. The cash outflows during the first three months of 2017 were related to the distribution of $89.6 million to Westlake and of $9.5 million to other unitholders by the Partnership and the repayment of $11.4 million of borrowings under the OpCo Revolver as compared to the distribution of $75.7 million to Westlake and of $8.3 million to other unitholders during the first three months of 2016. The distributions and repayment in the first three months of 2017 were partially offset by borrowings under the OpCo Revolver of $17.0 million to fund capital expenditures. The distributions in the first three months of 2016 were partially offset by borrowing under the OpCo Revolver of $59.5 million primarily to fund capital expenditures and our working capital requirements.
LIQUIDITY AND CAPITAL RESOURCES
Liquidity and Financing Arrangements
Based on the terms of our cash distribution policy, we expect that we will distribute to our partners most of the excess cash generated by our operations. To the extent we do not generate sufficient cash flow to fund capital expenditures, we expect to fund them primarily from external sources, including borrowing directly from Westlake, as well as future issuances of equity and debt interests.
The Partnership maintains separate bank accounts, but Westlake continues to provide treasury services on our behalf under the Services and Secondment Agreement. Our sources of liquidity include cash generated from operations, the OpCo Revolver, the MLP Revolver and, if necessary and possible under then current market conditions, the issuance of additional common units representing limited partner interests of the Partnership, other classes of units representing limited partners interests of the Partnership or debt securities. We believe that cash generated from these sources will be sufficient to meet our short-term working capital requirements and long-term capital expenditure requirements and to make quarterly cash distributions. Westlake may also provide other direct and indirect financing to us from time to time although it is not required to do so.
In order to fund non-annual turnaround expenditures, we cause OpCo to reserve approximately $30.0 million during each twelve-month period for turnaround activities. Each of OpCo's ethylene production facilities requires turnaround maintenance approximately every five years. By reserving additional cash annually, we intend to reduce the variability in OpCo's cash flow. Westlake's purchase price for ethylene purchased under the Ethylene Sales Agreement includes a component (adjusted annually) designed to cover, over the long term, substantially all of OpCo's turnaround expenditures.
Our cash is generated from cash distributions from OpCo. OpCo was a restricted subsidiary and guarantor under Westlake's credit facility and the indentures governing its senior notes until August 2016. These guarantees were released during August 2016. The indentures governing Westlake's senior notes prevent OpCo from making distributions to us if any default or event of default (as defined in the indentures) exists. Westlake's credit facility does not prevent OpCo from making distributions to us.

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On May 1, 2017, the board of directors of Westlake Chemical Partners GP LLC, our general partner, approved a quarterly distribution of $0.3549 per unit payable on May 30, 2017 to unitholders of record as of May 15, 2017 and a distribution to the incentive distribution rights holders ("IDR Holders"), which equates to a total amount of approximately $9.8 million per quarter, or approximately $39.2 million per year in aggregate (in each case, including the distribution to the IDR Holders), based on the number of common and subordinated units outstanding on March 31, 2017. We do not have a legal or contractual obligation to pay distributions on a quarterly basis or any other basis at our minimum quarterly distribution rate or any other rate.
Capital Expenditures
We completed the upgrade and capacity expansion of Calvert City Olefins in April 2017. The expansion, along with other initiatives, is expected to increase ethylene capacity of Calvert City Olefins by approximately 100 million pounds annually to an annual ethylene capacity of 730 million pounds.
Westlake has historically funded expansion capital expenditures related to Lake Charles Olefins and Calvert City Olefins. During the three months ended March 31, 2017 and 2016, Westlake loaned OpCo $17.0 million and $59.5 million, respectively, of which $17.0 million and $56.9 million was used to fund the expansion capital expenditures in the first three months of 2017 and 2016, respectively, while the additional $2.6 million borrowed during the first quarter of 2016 was used for working capital purposes. The total capital expenditures, which includes expansion and capital maintenance costs, for 2017 are expected to be approximately $71.2 million, of which $23.2 million was spent during the three months ended March 31, 2017. We expect that Westlake will loan additional cash to OpCo to fund its expansion capital expenditures in the future, but Westlake is under no obligation to do so.
Cash and Cash Equivalents
As of March 31, 2017, our cash and cash equivalents totaled $123 million. In addition, we have a revolving credit facility with Westlake available to supplement cash if needed, as described under "Indebtedness" below.
Indebtedness
August 2013 Promissory Notes
In connection with the closing of the IPO, OpCo assumed $246.1 million of indebtedness under three intercompany promissory notes (the "August 2013 Promissory Notes"). As of March 31, 2017, $31.8 million of the principal amount of the August 2013 Promissory Notes was still outstanding. The August 2013 Promissory Notes have a ten-year term and bear interest at the prime rate plus a 1.5% margin, which is accrued in arrears quarterly. OpCo has the right at any time to prepay the August 2013 Promissory Notes, in whole or in part, without any premium or penalty. The August 2013 Promissory Notes mature in August 2023.
OpCo Revolver
In connection with the IPO, OpCo entered into a $600.0 million revolving credit facility with Westlake (OpCo Revolver") that may be used to fund growth projects and working capital needs. As of March 31, 2017, outstanding borrowings under the OpCo Revolver totaled $433.1 million and bore interest at the LIBOR rate plus 3.0%, which is accrued in arrears quarterly. The OpCo Revolver matures in 2019.
MLP Revolver
In 2015, we entered into a $300.0 million senior, unsecured revolving credit agreement with Westlake Chemical Finance Corporation, an affiliate of Westlake ("MLP Revolver"). The MLP Revolver is scheduled to mature on April 29, 2018. Borrowings under the MLP Revolver bear interest at LIBOR plus a spread ranging from 2.0% to 3.0% (depending on our consolidated leverage ratio), payable quarterly. The MLP Revolver provides that we may pay all or a portion of the interest on any borrowings in kind, in which case any such amounts would be added to the principal amount of the loan. The MLP Revolver requires that we maintain a consolidated leverage ratio of either (1) during any one-year period following certain types of acquisitions (including acquisitions of additional interests in OpCo), 5.50:1.0 or less, or (2) during any other period, 4.50:1.0 or less. The MLP Revolver also contains certain other customary covenants. The repayment of borrowings under the MLP Revolver is subject to acceleration upon the occurrence of an event of default. As of March 31, 2017, outstanding borrowings under the MLP Revolver totaled $135.3 million. We intend to use the MLP Revolver to purchase additional limited partnership interests in OpCo in the future, in the event OpCo desires to sell such additional interests to us. We are evaluating refinancing alternatives as we approach the maturity of the MLP Revolver.

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Off-Balance Sheet Arrangements
None.
FORWARD-LOOKING STATEMENTS
Certain of the statements contained in this report are forward-looking statements. All statements, other than statements of historical facts, included in this report that address activities, events or developments that we expect, project, believe or anticipate will or may occur in the future are forward-looking statements. Forward-looking statements can be identified by the use of words such as "believes," "intends," "may," "should," "could," "anticipates," "expects," "will" or comparable terminology, or by discussions of strategies or trends. Although we believe that the expectations reflected in such forward-looking statements are reasonable, we cannot give any assurances that these expectations will prove to be correct. Forward-looking statements relate to matters such as:
the amount of ethane that we are able to process, which could be adversely affected by, among other things, operating difficulties;
the volume of ethylene that we are able to sell;
the price at which we are able to sell ethylene;
industry market outlook, including prices and margins in third-party ethylene and co-products sales;
the parties to whom we will sell ethylene and on what basis;
volumes of ethylene that Westlake may purchase, in addition to the minimum commitment under the Ethylene Sales Agreement;
timing, funding and results of capital projects, such as OpCo's plan to increase the ethylene capacity of the ethylene production facility at Calvert City Olefins;
our intended minimum quarterly distributions and the manner of making such distributions;
our ability to meet our liquidity needs, including refinancing alternatives related to the MLP Revolver;
timing of and amount of capital expenditures;
potential loans from Westlake to OpCo to fund OpCo's expansion capital expenditures in the future;
expected mitigation of exposure to commodity price fluctuations;
turnaround activities and the variability of OpCo's cash flow;
compliance with present and future environmental regulations and costs associated with environmentally related penalties, capital expenditures, remedial actions and proceedings, including any new laws, regulations or treaties that may come into force to limit or control carbon dioxide and other greenhouse gas emissions or to address other issues of climate change; and
effects of pending legal proceedings.
We have based these statements on assumptions and analysis in light of our experience and perception of historical trends, current conditions, expected future developments and other factors we believe were appropriate in the circumstances when the statements were made. Forward-looking statements by their nature involve substantial risks and uncertainties that could significantly impact expected results, and actual future results could differ materially from those described in such statements. These statements are subject to a number of assumptions, risks and uncertainties, including those described in in "Risk Factors" in the 2016 Form 10-K and the following:
general economic and business conditions;
the cyclical nature of the chemical industry;
the availability, cost and volatility of raw materials and energy;
uncertainties associated with the United States and worldwide economies, including those due to political tensions and unrest in the Middle East, the Commonwealth of Independent States (including Ukraine) and elsewhere;
current and potential governmental regulatory actions in the United States and regulatory actions and political unrest in other countries;
industry production capacity and operating rates;
the supply/demand balance for our product;

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competitive products and pricing pressures;
instability in the credit and financial markets;
access to capital markets;
terrorist acts;
operating interruptions (including leaks, explosions, fires, weather-related incidents, mechanical failure, unscheduled downtime, labor difficulties, transportation interruptions, spills and releases and other environmental risks);
changes in laws or regulations;
technological developments;
our ability to integrate acquired businesses;
foreign currency exchange risks;
our ability to implement our business strategies; and
creditworthiness of our customers.
Many of these factors are beyond our ability to control or predict. Any of the factors, or a combination of these factors, could materially affect our future results of operations and the ultimate accuracy of the forward-looking statements. These forward-looking statements are not guarantees of our future performance, and our actual results and future developments may differ materially from those projected in the forward-looking statements. Management cautions against putting undue reliance on forward-looking statements or projecting any future results based on such statements or present or prior earnings levels. Every forward-looking statement speaks only as of the date of the particular statement, and we undertake no obligation to publicly update or revise any forward-looking statements.
Item 3. Quantitative and Qualitative Disclosures about Market Risk
Commodity Price Risk
A substantial portion of the Partnership's products and raw materials are commodities whose prices fluctuate as market supply and demand fundamentals change. However, our direct exposure to commodity price risk is limited to approximately 5% of our total ethylene production, which is the portion sold to third parties. We believe we have substantially mitigated our indirect exposure to commodity price fluctuations during the term of the Ethylene Sales Agreement through the minimum commitment and the cost-plus based pricing.
Interest Rate Risk
We are exposed to interest rate risk with respect to our outstanding debt, all of which is variable rate debt. At March 31, 2017, we had variable rate debt of $600.2 million outstanding, all of which was owed to wholly owned subsidiaries of Westlake, $31.8 million of which accrues interest at a variable rate of prime plus 150 basis points, $433.1 million of which accrues interest at a variable rate of LIBOR plus 300 basis points and the remaining $135.3 million of which accrues interest at a variable rate of LIBOR plus 200 basis points. During August 2015, the Partnership entered into an interest rate contract with Westlake to fix the LIBOR component of the interest rate for a portion of the debt. The weighted average variable interest rate of our debt, excluding the effectively fixed rate portion through the interest rate contract, as of March 31, 2017 was 4.0%. We will continue to be subject to interest rate risk with respect to our variable rate debt as well as the risk of higher interest cost if and when this debt is refinanced. A hypothetical increase in our average interest rate on variable rate debt (excluding the effectively fixed rate debt portion through the interest rate contract) by 100 basis points would increase our annual interest expense by approximately $5.3 million, based on the March 31, 2017 debt balance.

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Item 4. Controls and Procedures
We carried out an evaluation, under the supervision and with the participation of our management, including our President and Chief Executive Officer and our Senior Vice President and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures pursuant to Rules 13a-15 or 15d-15 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), as of the end of the period covered by this report. Based upon that evaluation, our President and Chief Executive Officer and our Senior Vice President and Chief Financial Officer concluded that our disclosure controls and procedures are effective with respect to (i) the accumulation and communication to our management, including our Chief Executive Officer and our Chief Financial Officer, of information required to be disclosed by us in the reports that we submit under the Exchange Act, and (ii) the recording, processing, summarizing and reporting of such information within the time periods specified in the SEC's rules and forms.
There were no changes in our internal control over financial reporting that occurred during the three months ended March 31, 2017 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION
Item 1. Legal Proceedings
The 2016 Form 10-K, filed on March 7, 2017, contained a description of various legal proceedings in which we are involved, including environmental proceedings. See Note 14 to the unaudited consolidated financial statements within this Quarterly Report on Form 10-Q for a description of certain of those proceedings, which information is incorporated by reference herein. In addition, under the Omnibus Agreement, Westlake has agreed to indemnify the Partnership for certain environmental and other liabilities relating to OpCo's processing facilities and related assets.
Item 1A. Risk Factors
For a discussion of risk factors, please read Item IA, "Risk Factors" in the 2016 Form 10-K. There have been no material changes from those risk factors.
Item 6. Exhibits
Exhibit No.
 
Description
 
 
 
31.1†
 
Rule 13a – 14(a) / 15d – 14(a) Certification (Principal Executive Officer)
 
 
 
31.2†
 
Rule 13a – 14(a) / 15d – 14(a) Certification (Principal Financial Officer)
 
 
 
32.1†
 
Section 1350 Certification (Principal Executive Officer and Principal Financial Officer)
 
 
 
101.INS†
 
XBRL Instance Document
 
 
 
101.SCH†
 
XBRL Taxonomy Extension Schema Document
 
 
 
101.CAL†
 
XBRL Taxonomy Extension Calculation Linkbase Document
 
 
 
101.DEF†
 
XBRL Taxonomy Extension Definition Linkbase Document
 
 
 
101.LAB†
 
XBRL Taxonomy Extension Label Linkbase Document
 
 
 
101.PRE†
 
XBRL Taxonomy Extension Presentation Linkbase Document
_____________
Filed herewith.

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SIGNATURES
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.
 
 
 
 
WESTLAKE CHEMICAL PARTNERS LP
 
 
 
 
Date:
May 3, 2017
 
 
By:
 
/S/    ALBERT CHAO        
 
 
 
 
 
 
Albert Chao
 
 
 
 
 
 
President, Chief Executive Officer and Director of
Westlake Chemical Partners GP LLC
(Principal Executive Officer)
 
 
 
 
Date:
May 3, 2017
 
 
By:
 
/S/    M. STEVEN BENDER        
 
 
 
 
 
 
M. Steven Bender
 
 
 
 
 
 
Senior Vice President, Chief Financial Officer and
Director of Westlake Chemical Partners GP LLC
(Principal Financial Officer)

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EXHIBIT INDEX
Exhibit No.
 
Exhibit
 
 
 
31.1†
 
Rule 13a – 14(a) / 15d – 14(a) Certification (Principal Executive Officer)
 
 
 
31.2†
 
Rule 13a – 14(a) / 15d – 14(a) Certification (Principal Financial Officer)
 
 
 
32.1†
 
Section 1350 Certification (Principal Executive Officer and Principal Financial Officer)
 
 
 
101.INS†
 
XBRL Instance Document
 
 
 
101.SCH†
 
XBRL Taxonomy Extension Schema Document
 
 
 
101.CAL†
 
XBRL Taxonomy Extension Calculation Linkbase Document
 
 
 
101.DEF†
 
XBRL Taxonomy Extension Definition Linkbase Document
 
 
 
101.LAB†
 
XBRL Taxonomy Extension Label Linkbase Document
 
 
 
101.PRE†
 
XBRL Taxonomy Extension Presentation Linkbase Document
_____________
Filed herewith.

29