10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2022

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 number 1-7414

Northwest Pipeline LLC

(Exact name of registrant as specified in its charter)

Delaware	26-1157701
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
One Williams Center
Tulsa, Oklahoma	74172-0172
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (918) 573-2000

NO CHANGE

(Former name, former address, and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act: None

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  þ    No  ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  þ    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ¨ Accelerated filer ¨ Non-accelerated filer þ 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  þ

THE REGISTRANT MEETS THE CONDITIONS SET FORTH IN GENERAL INSTRUCTION (H)(1)(a) AND (b) OF FORM 10-Q AND IS THEREFORE FILING THIS FORM 10-Q WITH THE REDUCED DISCLOSURE FORMAT.

Northwest Pipeline LLC

Index

	Page
Part I. Financial Information
Item 1. Financial Statements
Statement of Net Income – Three and Six Months Ended June 30, 2022 and 2021	4
Balance Sheet – June 30, 2022 and December 31, 2021	5
Statement of Changes in Member’s Equity – Three and Six Months Ended June 30, 2022 and 2021	7
Statement of Cash Flows – Six Months Ended June 30, 2022 and 2021	8
Notes to Financial Statements	9
Note 1 – Basis of Presentation	9
Note 2 – Revenue Recognition	9
Note 3 – Contingent Liabilities and Commitments	10
Note 4 – Debt and Financing Arrangements	12
Note 5 – Financial Instruments	12
Note 6 – Transactions with Affiliates	12
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	14
Item 4. Controls and Procedures	15
Part II. Other Information	15
Item 1. Legal Proceedings	15
Item 1A. Risk Factors	16
Item 6. Exhibits	17

FORWARD-LOOKING STATEMENTS

The reports, filings, and other public announcements of Northwest Pipeline LLC may contain or incorporate by reference statements that do not directly or exclusively relate to historical facts. Such statements are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended (Securities Act), and Section 21E of the Securities Exchange Act of 1934, as amended (Exchange Act). These forward-looking statements relate to anticipated financial performance, management’s plans and objectives for future operations, business prospects, outcome of regulatory proceedings, market conditions, and other matters.

All statements, other than statements of historical facts, included in this report that address activities, events, or developments that we expect, believe, or anticipate will exist or may occur in the future are forward-looking statements. Forward-looking statements can be identified by various forms of words such as “anticipates,” “believes,” “seeks,” “could,” “may,” “should,” “continues,” “estimates,” “expects,” “forecasts,” “intends,” “might,” “goals,” “objectives,” “targets,” “planned,” “potential,” “projects,” “scheduled,” “will,” “assumes,” “guidance,” “outlook,” “in-service date,” or other similar expressions. These forward-looking statements are based on management’s beliefs and assumptions and on information currently available to management and include, among others, statements regarding:

•Our and our affiliates’ future credit ratings;

•Amounts and nature of future capital expenditures;

•Expansion and growth of our business and operations;

•Expected in-service dates for capital projects;

1

•Financial condition and liquidity;

•Business strategy;

•Cash flow from operations or results of operations;

•Rate case filings;

•Natural gas prices, supply, and demand;

•Demand for our services; and

•The impact of the coronavirus (COVID-19) pandemic.

Forward-looking statements are based on numerous assumptions, uncertainties, and risks that could cause future events or results to be materially different from those stated or implied in this report. Many of the factors that will determine these results are beyond our ability to control or predict. Specific factors that could cause actual results to differ from results contemplated by the forward-looking statements include, among others, the following:

•The impact of operational and developmental hazards and unforeseen interruptions;

•Development and rate of adoption of alternative energy sources;

•The strength and financial resources of our competitors and the effects of competition;

•Availability of supplies, including lower than anticipated volumes from third parties, and market demand;

•Volatility of pricing including the effect of lower than anticipated energy commodity prices;

•Changes in maintenance and construction costs, as well as our ability to obtain sufficient construction-related inputs, including skilled labor;

•The impact of existing and future laws and regulations, the regulatory environment, environmental matters, and litigation, as well as our ability to obtain necessary permits and approvals, and achieve favorable rate proceeding outcomes;

•Increasing scrutiny and changing expectations from stakeholders with respect to our environmental, social, and governance practices;

•The physical and financial risks associated with climate change;

•Our exposure to the credit risk of our customers and counterparties;

•Our ability to successfully expand our facilities and operations;

•Whether we are able to successfully identify, evaluate, and timely execute our capital projects and investment opportunities;

•Risks related to financing, including restrictions stemming from debt agreements, future changes in credit ratings as determined by nationally recognized credit rating agencies, and the availability and cost of capital;

2

•Inflation, interest rates, and general economic conditions (including future disruptions and volatility in the global credit markets and the impact of these events on customers and suppliers);

•Our costs for defined benefit pension plans and other postretirement benefit plans sponsored by our affiliates;

•The risks resulting from outbreaks or other public health crises, including COVID-19;

•Changes in the current geopolitical situation, including the Russian invasion of Ukraine;

•Changes in U.S. governmental administration and policies;

•Risks associated with weather and natural phenomena, including climate conditions and physical damage to our facilities;

•Acts of terrorism, cybersecurity incidents, and related disruptions; and

•Additional risks described in our filings with the Securities and Exchange Commission (SEC).

Given the uncertainties and risk factors that could cause our actual results to differ materially from those contained in any forward-looking statement, we caution investors not to unduly rely on our forward-looking statements. We disclaim any obligations to and do not intend to update the above list or announce publicly the result of any revisions to any of the forward-looking statements to reflect future events or developments.

In addition to causing our actual results to differ, the factors listed above and referred to below may cause our intentions to change from those statements of intention set forth in this report. Such changes in our intentions may also cause our results to differ. We may change our intentions, at any time and without notice, based upon changes in such factors, our assumptions, or otherwise.

Because forward-looking statements involve risks and uncertainties, we caution that there are important factors, in addition to those listed above, that may cause actual results to differ materially from those contained in the forward-looking statements. For a detailed discussion of those factors, see Part I, Item 1A. Risk Factors in our Annual Report on Form 10-K for the year ended December 31, 2021, as filed with the SEC on February 28, 2022, as supplemented by disclosures in Part II, Item 1A. Risk Factors in subsequent Quarterly Reports on Form 10-Q.

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PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

Northwest Pipeline LLC

Statement of Net Income

(Unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
	(Thousands)
Operating Revenues:
Natural gas transportation	$	104,213	$	104,051	$	213,920	$	213,328
Natural gas storage	3,223		3,589		6,407		6,633
Other	422		282		1,350		855
Total operating revenues	107,858		107,922		221,677		220,816
Operating Expenses:
General and administrative	13,030		11,460		24,789		23,130
Operation and maintenance	22,741		19,533		40,486		36,179
Depreciation and amortization	28,507		28,200		57,149		56,268
Regulatory debits	364		350		818		698
Taxes — other than income taxes	4,349		4,281		8,430		8,497
Regulatory charges resulting from tax rate changes	5,879		5,879		11,693		11,693
Other (income) loss, net	(56)		(15)		(95)		(46)
Total operating expenses	74,814		69,688		143,270		136,419
Operating Income	33,044		38,234		78,407		84,397
Other (Income) and Other Expenses:
Interest expense	7,691		7,480		15,319		14,841
Allowance for equity and borrowed funds used during construction (AFUDC)	(769)		(374)		(1,469)		(639)
Miscellaneous other (income) loss, net	(802)		(184)		(1,601)		(345)
Total other (income) and other expenses	6,120		6,922		12,249		13,857
Net Income	$	26,924	$	31,312	$	66,158	$	70,540

See accompanying notes.

4

Northwest Pipeline LLC

Balance Sheet

(Unaudited)

	June 30, 2022		December 31, 2021
	(Thousands)
ASSETS
Current Assets:
Cash	$	—	$	—
Receivables:
Advances to affiliate	313,215		281,442
Trade	35,130		39,100
Affiliates	355		372
Other	448		737
Materials and supplies, at average cost	9,888		8,909
Exchange gas due from others	6,148		16,958
Prepayments and other	4,793		4,308
Total current assets	369,977		351,826
Property, plant and equipment	3,770,996		3,753,354
Less-Accumulated depreciation and amortization	1,897,559		1,863,921
Total property, plant and equipment, net	1,873,437		1,889,433
Other Assets:
Regulatory assets	17,015		18,312
Right-of-use assets	10,064		10,238
Deferred charges and other long-term assets	13,285		11,826
Total other assets	40,364		40,376
Total assets	$	2,283,778	$	2,281,635

(continued)

See accompanying notes.

5

Northwest Pipeline LLC

Balance Sheet

(Unaudited)

	June 30, 2022		December 31, 2021
	(Thousands)
LIABILITIES AND MEMBER’S EQUITY
Current Liabilities:
Payables:
Trade	$	23,719	$	23,108
Affiliates	8,071		13,140
Accrued liabilities:
Exchange gas due to others	9,025		12,559
Customer advances	8,821		2,281
Taxes — other than income taxes	7,956		11,196
Interest	5,505		5,505
Other	2,453		2,546
Total current liabilities	65,550		70,335
Long-Term Debt	579,551		579,030
Other Long-Term Liabilities:
Regulatory liabilities	404,414		388,433
Asset retirement obligations	125,934		122,650
Lease liability	8,168		8,202
Other	3,100		3,582
Total other long-term liabilities	541,616		522,867
Contingent Liabilities and Commitments (Note 3)
Member’s Equity:
Member’s capital	1,073,892		1,073,892
Retained earnings	23,169		35,511
Total member’s equity	1,097,061		1,109,403
Total liabilities and member’s equity	$	2,283,778	$	2,281,635

See accompanying notes.

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Northwest Pipeline LLC

Statement of Changes in Member’s Equity

(Unaudited)

	Three Months Ended June 30,
	2022		2021
	(Thousands)
Member’s Capital:
Balance at beginning and end of period	$	1,073,892	$	1,073,892
Retained Earnings:
Balance at beginning of period	32,745		50,731
Net income	26,924		31,312
Cash distributions to parent	(36,500)		(44,000)
Balance at end of period	23,169		38,043
Total Member’s Equity	$	1,097,061	$	1,111,935
	Six Months Ended June 30,
	2022		2021
	(Thousands)
Member’s Capital:
Balance at beginning and end of period	$	1,073,892	$	1,073,892
Retained Earnings:
Balance at beginning of period	35,511		66,503
Net income	66,158		70,540
Cash distributions to parent	(78,500)		(99,000)
Balance at end of period	23,169		38,043
Total Member’s Equity	$	1,097,061	$	1,111,935

See accompanying notes.

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Northwest Pipeline LLC

Statement of Cash Flows

(Unaudited)

	Six Months Ended June 30,
	2022		2021
	(Thousands)
OPERATING ACTIVITIES:
Net income	$	66,158	$	70,540
Adjustments to reconcile net cash provided (used) by operating activities:
Depreciation and amortization	57,149		56,268
Regulatory debits	818		698
Regulatory charges resulting from tax rate changes	11,693		11,693
Amortization of deferred charges and credits	(2,359)		(1,818)
Allowance for equity funds used during construction (equity AFUDC)	(1,138)		(518)
Changes in current assets and liabilities:
Trade and other accounts receivable	4,259		(1,472)
Affiliate receivables	17		(30)
Materials and supplies	(979)		22
Other current assets	935		(41)
Trade accounts payable	889		1,084
Affiliate payables	(5,069)		3,497
Other accrued liabilities	(2,956)		3,413
Changes in long-term assets and liabilities:
Regulatory liabilities	2,343		2,040
Other, net	1,480		244
Net cash provided (used) by operating activities	133,240		145,620
FINANCING ACTIVITIES:
Cash distributions to parent	(78,500)		(99,000)
Net cash provided (used) by financing activities	(78,500)		(99,000)
INVESTING ACTIVITIES:
Property, plant and equipment:
Capital expenditures (1)	(29,699)		(25,247)
Contributions and advances for construction costs	8,492		5,179
Disposal of property, plant and equipment, net	(1,760)		(2,522)
Advances to affiliate, net	(31,773)		(24,030)
Net cash provided (used) by investing activities	(54,740)		(46,620)
Increase (decrease) in cash	—		—
Cash at beginning of period	—		—
Cash at end of period	$	—	$	—
____________________________________
(1) Increases to property, plant and equipment, exclusive of equity AFUDC	$	(29,161)	$	(29,885)
Changes in related accounts payable and accrued liabilities	(538)		4,638
Capital expenditures	$	(29,699)	$	(25,247)

See accompanying notes.

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Northwest Pipeline LLC

Notes to Financial Statements

(Unaudited)

Note 1 – Basis of Presentation

In this report, Northwest Pipeline LLC (Northwest) is at times referred to in the first person as “we,” “us,” or “our.”

Northwest is indirectly owned by The Williams Companies, Inc. (Williams), a publicly traded Delaware corporation. We own and operate an interstate natural gas pipeline system that is regulated by the Federal Energy Regulatory Commission (FERC).

General

Our accompanying interim financial statements do not include all the notes in our annual financial statements and, therefore, should be read in conjunction with our financial statements and notes thereto for the year ended December 31, 2021, in our Annual Report on Form 10-K. The accompanying unaudited financial statements include all normal recurring adjustments and others that, in the opinion of management, are necessary to present fairly our interim financial statements.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in our financial statements and accompanying notes. Actual results could differ from those estimates.

A reclassification within Operating Revenues on the Statement of Net Income from the service line of Natural gas storage to Other of approximately $0.3 million and $0.9 million for the three and six months ended June 30, 2021, respectively, has been made to conform to the 2022 presentation.

Note 2 – Revenue Recognition

Revenue by Category

Our revenue disaggregation by major service line includes Natural gas transportation, Natural gas storage, and Other, which are separately presented on the Statement of Net Income.

Contract Assets

The following table presents a reconciliation of our contract assets:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
	(Thousands)
Balance at beginning of period	$	9,064	$	4,516	$	7,943	$	3,395
Revenue recognized in excess of amounts invoiced	1,134		1,134		2,255		2,255
Balance at end of period	$	10,198	$	5,650	$	10,198	$	5,650

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Notes (Continued) Table of Contents

Contract Liabilities

The following table presents a reconciliation of our contract liabilities:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
	(Thousands)
Balance at beginning of period	$	3,418	$	4,378	$	3,672	$	4,610
Recognized in revenue	(257)		(234)		(511)		(466)
Balance at end of period	$	3,161	$	4,144	$	3,161	$	4,144

Remaining Performance Obligations

Our remaining performance obligations primarily include reservation charges on contracted capacity on our firm transportation and storage contracts with customers. Amounts from certain contracts included in the table below, which are subject to periodic review and approval by the FERC, reflect the rates for such services in our current FERC tariffs for the life of the related contracts; however, these rates may change based on future rate cases or settlements approved by the FERC. This table excludes the variable consideration component for commodity charges. Certain of our contracts contain evergreen and other renewal provisions for periods beyond the initial term of the contract. The remaining performance obligations as of June 30, 2022 do not consider potential future performance obligations for which the renewal has not been exercised and exclude contracts with customers for which the underlying facilities have not received FERC authorization to be placed into service.

The following table presents the amount of the contract liabilities balance expected to be recognized as revenue when performance obligations are satisfied and the transaction price allocated to the remaining performance obligations under certain contracts as of June 30, 2022.

	Contract Liabilities		Remaining Performance Obligations
	(Thousands)
2022 (six months)	$	518	$	208,326
2023 (one year)	1,120		397,086
2024 (one year)	1,218		345,642
2025 (one year)	305		331,553
2026 (one year)	—		322,990
Thereafter	—		2,518,879
Total	$	3,161	$	4,124,476

Accounts Receivable

Receivables from contracts with customers are included within Receivables - Trade and Receivables - Affiliated companies and receivables that are not related to contracts with customers are included within the balance of Receivables - Advances to affiliate and Receivables - Other on our Balance Sheet.

Note 3 – Contingent Liabilities and Commitments

Environmental Matters

We are subject to the National Environmental Policy Act and other federal and state legislation regulating the environmental aspects of our business. Except as discussed below, our management believes that we are in substantial compliance with existing environmental requirements. Environmental expenditures are expensed or

10

Notes (Continued) Table of Contents

capitalized depending on their future economic benefit and potential for rate recovery. We believe that, with respect to any expenditures required to meet applicable standards and regulations, the FERC would grant the requisite rate relief so that substantially all of such expenditures would be permitted to be recovered through rates.

Beginning in the mid-1980s, we evaluated many of our facilities for the presence of toxic and hazardous substances to determine to what extent, if any, remediation might be necessary. We identified polychlorinated biphenyl (PCB) contamination in air compressor systems, soils, and related properties at certain compressor station sites. Similarly, we identified hydrocarbon impacts at these facilities due to the former use of earthen pits, lubricating oil leaks or spills, and excess pipe coating released to the environment. In addition, heavy metals have been identified at these sites due to the former use of mercury containing meters and paint and welding rods containing lead, cadmium, and arsenic. The PCBs were remediated pursuant to a Consent Decree with the U.S. Environmental Protection Agency (EPA) in the late 1980s, and we conducted a voluntary clean-up of the hydrocarbon and mercury impacts in the early 1990s. In 2005, the Washington Department of Ecology required us to re-evaluate our previous clean-ups in Washington. During 2006 to 2015, 129 meter stations were evaluated, of which 82 required remediation. As of June 30, 2022, two meter stations are still being remediated. During 2006 to 2018, 14 compressor stations were evaluated, of which 11 required remediation. As of June 30, 2022, five compressor stations are still being remediated. At June 30, 2022, we had accrued liabilities totaling approximately $1.0 million, $0.1 million of which is recorded in Accrued liabilities - Other and $0.9 million of which is recorded in Other Long-Term Liabilities - Other on the Balance Sheet. At December 31, 2021, we had accrued liabilities totaling approximately $1.0 million, $0.1 million of which is recorded in Accrued liabilities - Other and $0.9 million of which is recorded in Other Long-Term Liabilities - Other on the Balance Sheet. We are conducting environmental assessments and implementing a variety of remedial measures that may result in increases or decreases in the total estimated costs.

The EPA and various state regulatory agencies routinely propose and promulgate new rules, and issue updated guidance to existing rules. These rulemakings include, but are not limited to, rules for reciprocating internal combustion engine and combustion turbine maximum achievable control technology, review and updates to the National Ambient Air Quality Standards, and rules for new and existing source performance standards for volatile organic compounds and methane. We continuously monitor these regulatory changes and how they may impact our operations. Implementation of new or modified regulations may result in impacts to our operations and increase the cost additions to Total property, plant, and equipment, net on the Balance Sheet for both new and existing facilities in affected areas; however, due to regulatory uncertainty on final rule content and applicability timeframes, we are unable to reasonably estimate the cost of these regulatory impacts at this time.

Other Matters

Various other proceedings are pending against us and are considered incidental to our operations.

Summary

We have disclosed all significant matters for which we are unable to reasonably estimate a range of possible loss. We estimate that for all matters for which we are able to reasonably estimate a range of loss, including those noted above and others that are not individually significant, our aggregate reasonably possible losses beyond amounts accrued for all of our contingent liabilities are immaterial to our expected future annual results of operations, liquidity and financial position. These calculations have been made without consideration of any potential recovery from third parties. 

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Notes (Continued) Table of Contents

Note 4 – Debt and Financing Arrangements

Credit Facility

We, along with Williams and Transcontinental Gas Pipe Line Company, LLC (Transco), are party to a credit agreement with aggregate commitments available of $3.75 billion, with up to an additional $500 million increase in aggregate commitments available under certain circumstances. We and Transco are each able to borrow up to $500 million under this credit facility to the extent not otherwise utilized by the other co-borrowers. At June 30, 2022, no letters of credit have been issued and no loans were outstanding under the credit facility.

Commercial Paper

Williams participates in a $3.5 billion commercial paper program, and Williams’ management considers amounts outstanding under this program to be a reduction of available capacity under the credit facility. At June 30, 2022, $1.040 billion was outstanding under Williams’ commercial paper program.

Note 5 – Financial Instruments

Fair Value of Financial Instruments

The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value:

Short-term financial assets: The carrying values of short-term financial assets that have variable interest rates (advances to affiliate), accounts receivable and accounts payable approximate fair value because of the short-term nature of these instruments.

Long-term debt: The disclosed fair value of our long-term debt, which we consider as a level 2 measurement, is determined by a market approach using broker quoted indicative period-end bond prices. The quoted prices are based on observable transactions in less active markets for our debt or similar instruments. The carrying amount and estimated fair value of our long-term debt were $579.6 million and $578.7 million, respectively, at June 30, 2022, and $579.0 million and $646.2 million, respectively, at December 31, 2021.

Note 6 – Transactions with Affiliates

We are a participant in Williams’ cash management program, and we make advances to and receive advances from Williams. At June 30, 2022 and December 31, 2021, our advances to Williams totaled approximately $313.2 million and $281.4 million, respectively. These advances are represented by demand notes and are classified as Receivables - Advances to affiliate on the Balance Sheet. Advances are stated at the historical carrying amounts. Interest expense and income are recognized when earned and the collectability is reasonably assured. The interest rate on these intercompany demand notes is based upon the daily overnight investment rate paid on Williams’ excess cash at the end of each month, which was 1.21 percent at June 30, 2022. The interest income from these advances was $0.5 million for each of the three and six months ended June 30, 2022 and minimal for each of the three and six months ended June 30, 2021. Such interest income is included in Other (Income) and Other Expenses – Miscellaneous other (income) loss, net on the Statement of Net Income.

Included in Operating Revenues on the Statement of Net Income are revenues received from affiliates of $0.6 million and $1.0 million for the three and six months ended June 30, 2022, respectively, and $0.2 million and $0.6 million for the three and six months ended June 30, 2021, respectively. The rates charged to provide services to affiliates are the same as those that are charged to similarly-situated nonaffiliated customers.

We have no employees. Services necessary to operate our business are provided to us by Williams and certain affiliates of Williams. We reimburse Williams and its affiliates for all direct and indirect expenses incurred or payments made (including salary, bonus, incentive compensation and benefits) in connection with these services. Employees of Williams also provide general, administrative and management services to us, and we are charged for

12

Notes (Continued) Table of Contents

certain administrative expenses incurred by Williams. These charges are either directly identifiable or allocated to our assets. Direct charges are for goods and services provided by Williams at our request. Allocated charges are based on a three-factor formula, which considers revenues; property, plant, and equipment; and payroll. In management’s estimation, the allocation methodologies used are reasonable and result in a reasonable allocation to us of our costs of doing business incurred by Williams. We have recorded approximately $21.9 million and $42.2 million for the three and six months ended June 30, 2022, respectively, and $19.9 million and $40.5 million for the three and six months ended June 30, 2021, respectively, for these service expenses, which are primarily included in General and administrative and Operation and maintenance expenses on the Statement of Net Income.

During July 2022, we declared and paid a cash distribution of $29.5 million to our parent.

13

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

General

The following discussion should be read in conjunction with the Management’s Discussion and Analysis, Financial Statements, and Notes contained in Items 7 and 8 of our 2021 Annual Report on Form 10-K and with the Financial Statements and Notes contained in this Form 10-Q.

Results of Operations

This analysis discusses financial results of our operations for the six-month periods ended June 30, 2022 and 2021. Variances due to changes in natural gas prices and transportation volumes have little impact on revenues, because under our rate design methodology, the majority of overall cost of service is recovered through firm capacity reservation charges in our transportation rates.

Net Income for the first six months of 2022 of $66.2 million decreased by $4.4 million, or approximately 6 percent, when compared to the $70.5 million recognized during the first six months of 2021 as favorable results were offset by increased expenses as discussed further below.

Operating Revenues increased $0.9 million primarily driven by an increase in Natural gas transportation from higher short-term firm transportation and an increase in Other from higher park and loan services in 2022.

Operating Expenses increased $6.9 million, or 5 percent, primarily due to:

•an increase in Operation and Maintenance expenses due to higher routine operation and maintenance activities and employee-related labor and benefit costs;

•Higher General and administrative expenses including an unfavorable change in allocated corporate employee-related labor and benefit costs; and

•Higher Depreciation and amortization from additional assets placed into service.

Other (Income) and Other Expenses had a $1.6 million favorable change primarily due to (i) favorable changes for funds used during construction as a result of higher capitalized construction costs, (ii) an increase in interest income on our advances to Williams due to rising interest rates, and (iii) the favorable impact as a result of the tax gross-up on the increase in prepayments received for reimbursable projects in 2022, partially offset by (iv) an increase in interest expense associated with our regulatory liability resulting from tax rate changes.

14

Item 4. Controls and Procedures

Disclosure Controls and Procedures

Our management, including our Senior Vice President and our Vice President and Chief Accounting Officer, does not expect that our disclosure controls and procedures (as defined in Rules 13a - 15(e) and 15d - 15(e) of the Securities Exchange Act, as amended) (Disclosure Controls) or our internal control over financial reporting (Internal Controls) will prevent all errors and all fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the company have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the control. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected. We monitor our Disclosure Controls and Internal Controls and make modifications as necessary; our intent in this regard is that the Disclosure Controls and Internal Controls will be modified as systems change and conditions warrant.

Evaluation of Disclosure Controls and Procedures

An evaluation of the effectiveness of the design and operation of our Disclosure Controls was performed as of the end of the period covered by this report. This evaluation was performed under the supervision and with the participation of our management, including our Senior Vice President and our Vice President and Chief Accounting Officer. Based upon that evaluation, our Senior Vice President and our Vice President and Chief Accounting Officer concluded that these Disclosure Controls are effective at a reasonable assurance level.

Changes in Internal Control over Financial Reporting

There have been no changes during the second quarter of 2022 that have materially affected, or are reasonably likely to materially affect, our Internal Control over Financial Reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

Environmental

While it is not possible for us to predict the final outcome of any pending legal proceedings involving governmental authorities under federal, state, and local laws regulating the discharge of materials into the environment, we do not anticipate a material effect on our financial position if we were to receive an unfavorable outcome in any one or more of such proceedings. Our threshold for disclosing material environmental legal proceedings involving a governmental authority where potential monetary sanctions are involved is $1 million.

Other

The additional information called for by this item is provided in Note 3 – Contingent Liabilities and Commitments, included in the Notes to Financial Statements included under Part I, Item 1. Financial Statements of this Form 10-Q, which information is incorporated by reference into this item.

15

Item 1A. Risk Factors

    Part I, Item 1A. Risk Factors in our Annual Report on Form 10-K for the year ended December 31, 2021, as filed with the SEC on February 28, 2022, as supplemented by disclosures in Part II, Item 1A. Risk Factors in our Quarterly Report on Form 10-Q, as filed with the SEC on May 2, 2022, includes certain risk factors that could materially affect our business, financial condition, or future results. Those Risk Factors have not materially changed.

16

Item 6. Exhibits

The following instruments are included as exhibits to this report.

Exhibit	Description
2	Certificate of Conversion of Northwest Pipeline GP (filed July 3, 2013 as Exhibit 2.1 to our current report on Form 8-K (File No. 001-07414) and incorporated herein by reference).
3.1	Certificate of Formation of Northwest Pipeline LLC (filed July 3, 2013 as Exhibit 2.2 to our current report on Form 8-K (File No. 001-07414) and incorporated herein by reference).
3.2	Operating Agreement of Northwest Pipeline LLC (filed July 3, 2013 as Exhibit 3.1 to our current report on Form 8-K (File No. 001-07414) and incorporated herein by reference).
31.1*	Certification of Principal Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) promulgated under the Securities Exchange Act of 1934, as amended and Item 601(b)(31) of Regulation S-K, as adopted pursuant to Section 302 of The Sarbanes-Oxley Act of 2002.
31.2*	Certification of Principal Financial Officer pursuant to Rules 13a-14(a) and 15d-14(a) promulgated under the Securities Exchange Act of 1934, as amended, and Item 601(b)(31) of Regulation S-K, as adopted pursuant to Section 302 of The Sarbanes-Oxley Act of 2002.
32**	Certification of Principal Executive Officer and Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS*	XBRL Instance Document. The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.
101.SCH*	XBRL Taxonomy Extension Schema.
101.CAL*	XBRL Taxonomy Extension Calculation Linkbase.
101.DEF*	XBRL Taxonomy Definition Linkbase.
101.LAB*	XBRL Taxonomy Extension Label Linkbase.
101.PRE*	XBRL Taxonomy Extension Presentation Linkbase.
104*	Cover Page Interactive Data File. The cover page interactive data file does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document (contained in Exhibit 101).

*	Filed herewith.
**	Furnished herewith.

17

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.

			NORTHWEST PIPELINE LLC (Registrant)
Date:	August 1, 2022	By:	/s/ Billeigh W. Mark
			Billeigh W. Mark
			Controller
			(Principal Accounting Officer)

EX-31.1

Exhibit 31.1

SECTION 302 CERTIFICATION

I, Scott A. Hallam, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Northwest Pipeline LLC;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 1, 2022

By:	/s/ Scott A. Hallam
	Scott A. Hallam
	Senior Vice President
	(Principal Executive Officer)

EX-31.2

Exhibit 31.2

SECTION 302 CERTIFICATION

I, Mary A. Hausman, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Northwest Pipeline LLC;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 1, 2022

By:	/s/ Mary A. Hausman
	Mary A. Hausman
	Vice President and Chief Accounting Officer
	(Principal Financial Officer)

EX-32

Exhibit 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Northwest Pipeline LLC (the “Company”) on Form 10-Q for the period ending June 30, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned hereby certifies, in his capacity as an officer of the Company, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that to his knowledge:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Scott A. Hallam

Scott A. Hallam

Senior Vice President

August 1, 2022

/s/ Mary A. Hausman

Mary A. Hausman

Vice President and Chief Accounting Officer

August 1, 2022

A signed original of this written statement required by Section 906 has been provided to, and will be retained by, the Company and furnished to the Securities and Exchange Commission or its staff upon request.

The foregoing certification is being furnished to the Securities and Exchange Commission as an exhibit to the Report and shall not be considered filed as part of the Report.

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2022	Aug. 01, 2022
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document period end date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	1-7414
Entity registrant name	Northwest Pipeline LLC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-1157701
Entity Address, Address Line One	One Williams Center
Entity Address, City or Town	Tulsa
Entity Address, State or Province	OK
Entity Address, Postal Zip Code	74172-0172
City Area Code	918
Local Phone Number	573-2000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity filer category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity central index key	0000110019
Amendment flag	false
Document fiscal year focus	2022
Document fiscal period focus	Q2
Current fiscal year end date	--12-31
Entity common stock, shares outstanding		0

XML

Statement of Net Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Operating Revenues:
Revenues	$ 107,858	$ 107,922	$ 221,677	$ 220,816
Operating Expenses:
General and administrative	13,030	11,460	24,789	23,130
Operation and maintenance	22,741	19,533	40,486	36,179
Depreciation and amortization	28,507	28,200	57,149	56,268
Regulatory debits	364	350	818	698
Taxes — other than income taxes	4,349	4,281	8,430	8,497
Regulatory charges resulting from tax rate changes	5,879	5,879	11,693	11,693
Other (income) loss, net	(56)	(15)	(95)	(46)
Total operating expenses	74,814	69,688	143,270	136,419
Operating Income	33,044	38,234	78,407	84,397
Other (Income) and Other Expenses:
Interest expense	7,691	7,480	15,319	14,841
Allowance for equity and borrowed funds used during construction (AFUDC)	(769)	(374)	(1,469)	(639)
Miscellaneous other (income) loss, net	(802)	(184)	(1,601)	(345)
Total other (income) and other expenses	6,120	6,922	12,249	13,857
Net Income	26,924	31,312	66,158	70,540
Natural gas transportation
Operating Revenues:
Revenues	104,213	104,051	213,920	213,328
Natural gas storage
Operating Revenues:
Revenues	3,223	3,589	6,407	6,633
Other
Operating Revenues:
Revenues	$ 422	$ 282	$ 1,350	$ 855

XML

Balance Sheet (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current Assets:
Cash	$ 0	$ 0
Receivables:
Advances to affiliate	313,215	281,442
Trade	35,130	39,100
Affiliates	355	372
Other	448	737
Materials and supplies, at average cost	9,888	8,909
Exchange gas due from others	6,148	16,958
Prepayments and other	4,793	4,308
Total current assets	369,977	351,826
Property, plant and equipment	3,770,996	3,753,354
Less-Accumulated depreciation and amortization	1,897,559	1,863,921
Total property, plant and equipment, net	1,873,437	1,889,433
Other Assets:
Regulatory assets	17,015	18,312
Right-of-use assets	10,064	10,238
Deferred charges and other long-term assets	13,285	11,826
Total other assets	40,364	40,376
Total assets	2,283,778	2,281,635
Payables:
Trade	23,719	23,108
Affiliates	8,071	13,140
Accrued liabilities:
Exchange gas due to others	9,025	12,559
Customer advances	8,821	2,281
Taxes — other than income taxes	7,956	11,196
Interest	5,505	5,505
Other	2,453	2,546
Total current liabilities	65,550	70,335
Long-Term Debt	579,551	579,030
Other Long-Term Liabilities:
Regulatory liabilities	404,414	388,433
Asset retirement obligations	125,934	122,650
Lease liability	8,168	8,202
Other	3,100	3,582
Total other long-term liabilities	541,616	522,867
Contingent Liabilities and Commitments (Note 3)
Member’s Equity:
Member’s capital	1,073,892	1,073,892
Retained earnings	23,169	35,511
Total member’s equity	1,097,061	1,109,403
Total liabilities and member’s equity	$ 2,283,778	$ 2,281,635

XML

Statement of Changes in Member's Equity (Unaudited) - USD ($) $ in Thousands	Total	Member's Capital	Retained Earnings
Balance at beginning of period at Dec. 31, 2020		$ 1,073,892	$ 66,503
Net income	$ 70,540		70,540
Cash distributions to parent	(99,000)		(99,000)
Balance at end of period at Jun. 30, 2021	1,111,935	1,073,892	38,043
Balance at beginning of period at Mar. 31, 2021		1,073,892	50,731
Net income	31,312		31,312
Cash distributions to parent			(44,000)
Balance at end of period at Jun. 30, 2021	1,111,935	1,073,892	38,043
Balance at beginning of period at Dec. 31, 2021	1,109,403	1,073,892	35,511
Net income	66,158		66,158
Cash distributions to parent	(78,500)		(78,500)
Balance at end of period at Jun. 30, 2022	1,097,061	1,073,892	23,169
Balance at beginning of period at Mar. 31, 2022		1,073,892	32,745
Net income	26,924		26,924
Cash distributions to parent			(36,500)
Balance at end of period at Jun. 30, 2022	$ 1,097,061	$ 1,073,892	$ 23,169

XML

Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
OPERATING ACTIVITIES:
Net income	$ 66,158	$ 70,540
Adjustments to reconcile net cash provided (used) by operating activities:
Depreciation and amortization	57,149	56,268
Regulatory debits	818	698
Regulatory charges resulting from tax rate changes	11,693	11,693
Amortization of deferred charges and credits	(2,359)	(1,818)
Allowance for equity funds used during construction (equity AFUDC)	(1,138)	(518)
Changes in current assets and liabilities:
Trade and other accounts receivable	4,259	(1,472)
Affiliate receivables	17	(30)
Materials and supplies	(979)	22
Other current assets	935	(41)
Trade accounts payable	889	1,084
Affiliate payables	(5,069)	3,497
Other accrued liabilities	(2,956)	3,413
Changes in long-term assets and liabilities:
Regulatory liabilities	2,343	2,040
Other, net	1,480	244
Net cash provided (used) by operating activities	133,240	145,620
FINANCING ACTIVITIES:
Cash distributions to parent	(78,500)	(99,000)
Net cash provided (used) by financing activities	(78,500)	(99,000)
Property, plant and equipment:
Capital expenditures	(29,699)	(25,247)
Contributions and advances for construction costs	8,492	5,179
Disposal of property, plant and equipment, net	(1,760)	(2,522)
Advances to affiliate, net	(31,773)	(24,030)
Net cash provided (used) by investing activities	(54,740)	(46,620)
Increase (decrease) in cash	0	0
Cash at beginning of period	0	0
Cash at end of period	0	0
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]
Increases to property, plant and equipment, exclusive of equity AFUDC	(29,161)	(29,885)
Changes in related accounts payable and accrued liabilities	(538)	4,638
Capital expenditures	$ (29,699)	$ (25,247)

XML

Basis of Presentation (Notes)

6 Months Ended

Jun. 30, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

In this report, Northwest Pipeline LLC (Northwest) is at times referred to in the first person as “we,” “us,” or “our.”

Northwest is indirectly owned by The Williams Companies, Inc. (Williams), a publicly traded Delaware corporation. We own and operate an interstate natural gas pipeline system that is regulated by the Federal Energy Regulatory Commission (FERC).

General

Our accompanying interim financial statements do not include all the notes in our annual financial statements and, therefore, should be read in conjunction with our financial statements and notes thereto for the year ended December 31, 2021, in our Annual Report on Form 10-K. The accompanying unaudited financial statements include all normal recurring adjustments and others that, in the opinion of management, are necessary to present fairly our interim financial statements.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in our financial statements and accompanying notes. Actual results could differ from those estimates.

A reclassification within Operating Revenues on the Statement of Net Income from the service line of Natural gas storage to Other of approximately $0.3 million and $0.9 million for the three and six months ended June 30, 2021, respectively, has been made to conform to the 2022 presentation.

XML

Revenue Recognition (Notes)

6 Months Ended

Jun. 30, 2022

Revenue Recognition [Abstract]

Revenue Recognition

Revenue Recognition

Revenue by Category

Our revenue disaggregation by major service line includes Natural gas transportation, Natural gas storage, and Other, which are separately presented on the Statement of Net Income.

Contract Assets

The following table presents a reconciliation of our contract assets:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
	(Thousands)
Balance at beginning of period	$	9,064	$	4,516	$	7,943	$	3,395
Revenue recognized in excess of amounts invoiced	1,134		1,134		2,255		2,255
Balance at end of period	$	10,198	$	5,650	$	10,198	$	5,650

Contract Liabilities

The following table presents a reconciliation of our contract liabilities:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
	(Thousands)
Balance at beginning of period	$	3,418	$	4,378	$	3,672	$	4,610
Recognized in revenue	(257)		(234)		(511)		(466)
Balance at end of period	$	3,161	$	4,144	$	3,161	$	4,144

Remaining Performance Obligations

Our remaining performance obligations primarily include reservation charges on contracted capacity on our firm transportation and storage contracts with customers. Amounts from certain contracts included in the table below, which are subject to periodic review and approval by the FERC, reflect the rates for such services in our current FERC tariffs for the life of the related contracts; however, these rates may change based on future rate cases or settlements approved by the FERC. This table excludes the variable consideration component for commodity charges. Certain of our contracts contain evergreen and other renewal provisions for periods beyond the initial term of the contract. The remaining performance obligations as of June 30, 2022 do not consider potential future performance obligations for which the renewal has not been exercised and exclude contracts with customers for which the underlying facilities have not received FERC authorization to be placed into service.

The following table presents the amount of the contract liabilities balance expected to be recognized as revenue when performance obligations are satisfied and the transaction price allocated to the remaining performance obligations under certain contracts as of June 30, 2022.

	Contract Liabilities		Remaining Performance Obligations
	(Thousands)
2022 (six months)	$	518	$	208,326
2023 (one year)	1,120		397,086
2024 (one year)	1,218		345,642
2025 (one year)	305		331,553
2026 (one year)	—		322,990
Thereafter	—		2,518,879
Total	$	3,161	$	4,124,476

Accounts Receivable

Receivables from contracts with customers are included within Receivables - Trade and Receivables - Affiliated companies and receivables that are not related to contracts with customers are included within the balance of Receivables - Advances to affiliate and Receivables - Other on our Balance Sheet.

XML

Contingent Liabilities and Commitments (Notes)

6 Months Ended

Jun. 30, 2022

Commitments and Contingencies Disclosure [Abstract]

Contingent Liabilities and Commitments [Text Block]

Contingent Liabilities and Commitments

Environmental Matters

We are subject to the National Environmental Policy Act and other federal and state legislation regulating the environmental aspects of our business. Except as discussed below, our management believes that we are in substantial compliance with existing environmental requirements. Environmental expenditures are expensed or

capitalized depending on their future economic benefit and potential for rate recovery. We believe that, with respect to any expenditures required to meet applicable standards and regulations, the FERC would grant the requisite rate relief so that substantially all of such expenditures would be permitted to be recovered through rates.

Beginning in the mid-1980s, we evaluated many of our facilities for the presence of toxic and hazardous substances to determine to what extent, if any, remediation might be necessary. We identified polychlorinated biphenyl (PCB) contamination in air compressor systems, soils, and related properties at certain compressor station sites. Similarly, we identified hydrocarbon impacts at these facilities due to the former use of earthen pits, lubricating oil leaks or spills, and excess pipe coating released to the environment. In addition, heavy metals have been identified at these sites due to the former use of mercury containing meters and paint and welding rods containing lead, cadmium, and arsenic. The PCBs were remediated pursuant to a Consent Decree with the U.S. Environmental Protection Agency (EPA) in the late 1980s, and we conducted a voluntary clean-up of the hydrocarbon and mercury impacts in the early 1990s. In 2005, the Washington Department of Ecology required us to re-evaluate our previous clean-ups in Washington. During 2006 to 2015, 129 meter stations were evaluated, of which 82 required remediation. As of June 30, 2022, two meter stations are still being remediated. During 2006 to 2018, 14 compressor stations were evaluated, of which 11 required remediation. As of June 30, 2022, five compressor stations are still being remediated. At June 30, 2022, we had accrued liabilities totaling approximately $1.0 million, $0.1 million of which is recorded in Accrued liabilities - Other and $0.9 million of which is recorded in Other Long-Term Liabilities - Other on the Balance Sheet. At December 31, 2021, we had accrued liabilities totaling approximately $1.0 million, $0.1 million of which is recorded in Accrued liabilities - Other and $0.9 million of which is recorded in Other Long-Term Liabilities - Other on the Balance Sheet. We are conducting environmental assessments and implementing a variety of remedial measures that may result in increases or decreases in the total estimated costs.

The EPA and various state regulatory agencies routinely propose and promulgate new rules, and issue updated guidance to existing rules. These rulemakings include, but are not limited to, rules for reciprocating internal combustion engine and combustion turbine maximum achievable control technology, review and updates to the National Ambient Air Quality Standards, and rules for new and existing source performance standards for volatile organic compounds and methane. We continuously monitor these regulatory changes and how they may impact our operations. Implementation of new or modified regulations may result in impacts to our operations and increase the cost additions to Total property, plant, and equipment, net on the Balance Sheet for both new and existing facilities in affected areas; however, due to regulatory uncertainty on final rule content and applicability timeframes, we are unable to reasonably estimate the cost of these regulatory impacts at this time.

Other Matters

Various other proceedings are pending against us and are considered incidental to our operations.

Summary

We have disclosed all significant matters for which we are unable to reasonably estimate a range of possible loss. We estimate that for all matters for which we are able to reasonably estimate a range of loss, including those noted above and others that are not individually significant, our aggregate reasonably possible losses beyond amounts accrued for all of our contingent liabilities are immaterial to our expected future annual results of operations, liquidity and financial position. These calculations have been made without consideration of any potential recovery from third parties.

XML

Debt and Financing Arrangements (Notes)

6 Months Ended

Jun. 30, 2022

Debt Disclosure [Abstract]

Debt and Financing Arrangements

Debt and Financing Arrangements

Credit Facility

We, along with Williams and Transcontinental Gas Pipe Line Company, LLC (Transco), are party to a credit agreement with aggregate commitments available of $3.75 billion, with up to an additional $500 million increase in aggregate commitments available under certain circumstances. We and Transco are each able to borrow up to $500 million under this credit facility to the extent not otherwise utilized by the other co-borrowers. At June 30, 2022, no letters of credit have been issued and no loans were outstanding under the credit facility.

Commercial Paper

Williams participates in a $3.5 billion commercial paper program, and Williams’ management considers amounts outstanding under this program to be a reduction of available capacity under the credit facility. At June 30, 2022, $1.040 billion was outstanding under Williams’ commercial paper program.

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Financial Instruments (Notes)

6 Months Ended

Jun. 30, 2022

Fair Value Disclosures [Abstract]

Financial Instruments

Financial Instruments

Fair Value of Financial Instruments

The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value:

Short-term financial assets: The carrying values of short-term financial assets that have variable interest rates (advances to affiliate), accounts receivable and accounts payable approximate fair value because of the short-term nature of these instruments.

Long-term debt: The disclosed fair value of our long-term debt, which we consider as a level 2 measurement, is determined by a market approach using broker quoted indicative period-end bond prices. The quoted prices are based on observable transactions in less active markets for our debt or similar instruments. The carrying amount and estimated fair value of our long-term debt were $579.6 million and $578.7 million, respectively, at June 30, 2022, and $579.0 million and $646.2 million, respectively, at December 31, 2021.

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Transactions with Affiliates (Notes)

6 Months Ended

Jun. 30, 2022

Related Party Transactions [Abstract]

Transactions with Affiliates

Transactions with Affiliates

We are a participant in Williams’ cash management program, and we make advances to and receive advances from Williams. At June 30, 2022 and December 31, 2021, our advances to Williams totaled approximately $313.2 million and $281.4 million, respectively. These advances are represented by demand notes and are classified as Receivables - Advances to affiliate on the Balance Sheet. Advances are stated at the historical carrying amounts. Interest expense and income are recognized when earned and the collectability is reasonably assured. The interest rate on these intercompany demand notes is based upon the daily overnight investment rate paid on Williams’ excess cash at the end of each month, which was 1.21 percent at June 30, 2022. The interest income from these advances was $0.5 million for each of the three and six months ended June 30, 2022 and minimal for each of the three and six months ended June 30, 2021. Such interest income is included in Other (Income) and Other Expenses – Miscellaneous other (income) loss, net on the Statement of Net Income.

Included in Operating Revenues on the Statement of Net Income are revenues received from affiliates of $0.6 million and $1.0 million for the three and six months ended June 30, 2022, respectively, and $0.2 million and $0.6 million for the three and six months ended June 30, 2021, respectively. The rates charged to provide services to affiliates are the same as those that are charged to similarly-situated nonaffiliated customers.

We have no employees. Services necessary to operate our business are provided to us by Williams and certain affiliates of Williams. We reimburse Williams and its affiliates for all direct and indirect expenses incurred or payments made (including salary, bonus, incentive compensation and benefits) in connection with these services. Employees of Williams also provide general, administrative and management services to us, and we are charged for

certain administrative expenses incurred by Williams. These charges are either directly identifiable or allocated to our assets. Direct charges are for goods and services provided by Williams at our request. Allocated charges are based on a three-factor formula, which considers revenues; property, plant, and equipment; and payroll. In management’s estimation, the allocation methodologies used are reasonable and result in a reasonable allocation to us of our costs of doing business incurred by Williams. We have recorded approximately $21.9 million and $42.2 million for the three and six months ended June 30, 2022, respectively, and $19.9 million and $40.5 million for the three and six months ended June 30, 2021, respectively, for these service expenses, which are primarily included in General and administrative and Operation and maintenance expenses on the Statement of Net Income.

During July 2022, we declared and paid a cash distribution of $29.5 million to our parent.

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Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2022

Revenue Recognition [Abstract]

Contract with Customer, Asset and Liability [Table Text Block]

Contract Assets

The following table presents a reconciliation of our contract assets:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
	(Thousands)
Balance at beginning of period	$	9,064	$	4,516	$	7,943	$	3,395
Revenue recognized in excess of amounts invoiced	1,134		1,134		2,255		2,255
Balance at end of period	$	10,198	$	5,650	$	10,198	$	5,650

Contract Liabilities

The following table presents a reconciliation of our contract liabilities:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
	(Thousands)
Balance at beginning of period	$	3,418	$	4,378	$	3,672	$	4,610
Recognized in revenue	(257)		(234)		(511)		(466)
Balance at end of period	$	3,161	$	4,144	$	3,161	$	4,144

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

The following table presents the amount of the contract liabilities balance expected to be recognized as revenue when performance obligations are satisfied and the transaction price allocated to the remaining performance obligations under certain contracts as of June 30, 2022.

	Contract Liabilities		Remaining Performance Obligations
	(Thousands)
2022 (six months)	$	518	$	208,326
2023 (one year)	1,120		397,086
2024 (one year)	1,218		345,642
2025 (one year)	305		331,553
2026 (one year)	—		322,990
Thereafter	—		2,518,879
Total	$	3,161	$	4,124,476

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Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Reclassification [Line Items]
Revenues	$ 107,858	$ 107,922	$ 221,677	$ 220,816
Natural gas storage
Reclassification [Line Items]
Revenues	3,223	3,589	6,407	6,633
Other
Reclassification [Line Items]
Revenues	$ 422	282	$ 1,350	855
Previously Reported [Member] | Natural gas storage
Reclassification [Line Items]
Revenues		300		900
Revision of Prior Period, Adjustment [Member] | Other
Reclassification [Line Items]
Revenues		$ 300		$ 900

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Contract Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue Recognition [Abstract]
Balance at beginning of period	$ 9,064	$ 4,516	$ 7,943	$ 3,395
Revenue recognized in excess of amounts invoiced	1,134	1,134	2,255	2,255
Balance at end of period	$ 10,198	$ 5,650	$ 10,198	$ 5,650

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Revenue Recognition Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Contract With Customer, Liability [Line Items]
Balance at beginning of period	$ 3,418	$ 4,378	$ 3,672	$ 4,610
Recognized in revenue	(257)	(234)	(511)	(466)
Balance at end of period	$ 3,161	$ 4,144	$ 3,161	$ 4,144

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Contract Liabilities Performance Obligation (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract with Customer, Liability	$ 3,161	$ 3,418	$ 3,672	$ 4,144	$ 4,378	$ 4,610
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract with Customer, Liability	$ 518
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 | Performance Obligations Related To Contract Liabilities [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract with Customer, Liability	$ 1,120
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Performance Obligations Related To Contract Liabilities [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract with Customer, Liability	$ 1,218
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Performance Obligations Related To Contract Liabilities [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract with Customer, Liability	$ 305
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Performance Obligations Related To Contract Liabilities [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract with Customer, Liability	$ 0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Performance Obligations Related To Contract Liabilities [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract with Customer, Liability	$ 0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Performance Obligations Related To Contract Liabilities [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period

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Remaining Performance Obligation (Details) $ in Thousands	Jun. 30, 2022 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 4,124,476
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 208,326
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 | Remaining Performance Obligations [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 397,086
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01 | Remaining Performance Obligations [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 345,642
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01 | Remaining Performance Obligations [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 331,553
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Remaining Performance Obligations [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 322,990
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Remaining Performance Obligations [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 2,518,879
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01 | Remaining Performance Obligations [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period

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Contingent Liabilities and Commitments (Details) - Environmental assessment and remediation [Member] - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Site Contingency [Line Items]
Total accrued liabilities	$ 1.0	$ 1.0
Accrued liabilities - other	0.1	0.1
Other long-term liabilities	$ 0.9	$ 0.9

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Debt and Financing Arrangement (Details)	Jun. 30, 2022 USD ($)
Credit Agreement
Credit Facility and Commercial Paper [Line Items]
Credit facility capacity	$ 500,000,000
Williams Companies Inc
Credit Facility and Commercial Paper [Line Items]
Commercial paper outstanding	1,040,000,000.00
Williams Companies Inc | Commercial paper program
Credit Facility and Commercial Paper [Line Items]
Credit facility capacity	3,500,000,000
Williams Companies Inc | Credit Agreement
Credit Facility and Commercial Paper [Line Items]
Credit facility capacity	3,750,000,000
Additional amount by which credit facility can be increased	500,000,000
Letters of credit outstanding	0
Loans outstanding	$ 0

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Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Carrying (reported) amount, fair value disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	$ 579.6	$ 579.0
Estimate of fair value, fair value disclosure [Member] | Fair value, inputs, level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	$ 578.7	$ 646.2

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Transactions with Affiliates (Details) $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($) employee	Jul. 31, 2022 USD ($)	Jun. 30, 2022 USD ($) employee	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) employee	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Related Party Transaction [Line Items]
Advances to affiliate	$ 313,215		$ 313,215		$ 313,215		$ 281,442
Related party transaction, rate	1.21%
Interest Income, Related Party			500		500
Revenue from Related Parties			$ 600	$ 200	$ 1,000	$ 600
Entity number of employees | employee	0		0		0
Related party transaction, expenses from transactions with related party			$ 21,900	$ 19,900	$ 42,200	40,500
Cash distributions to parent					$ 78,500	$ 99,000
Subsequent Event
Related Party Transaction [Line Items]
Cash distributions to parent		$ 29,500