NORTHWEST PIPELINE LLC

Outlook

As previously discussed in Company Outlook, Williams’ growth capital and investment expenditures in 2026 are expected to range from $7.3 billion to $7.9 billion, excluding acquisitions and certain long-lead time equipment for power innovation projects that are backed by reimbursement from the customer if the equipment order is canceled.

As previously discussed in Recent Developments, Williams received approximately $3.75 billion in July 2026 related to selling a 49 percent noncontrolling interest in five power innovation projects. Williams is expected to receive the remainder of the $5.34 billion of committed capital through early 2027. Also in July 2026, Williams agreed to acquire Momentum for total consideration of up to $5.5 billion, including approximately $2 billion of Williams common stock, subject to certain holding restrictions.

As of June 30, 2026, Williams, including consolidated subsidiaries, had $2.2 billion of long-term debt due within one year. Williams’ potential sources of liquidity available to address these maturities include cash on hand, proceeds from refinancing, the credit facility, or the commercial paper program, as well as proceeds from asset monetizations.

2026 Long-Term Debt Activity

On January 8, 2026, Williams issued $2.8 billion of long-term debt and on March 2, 2026, Williams retired $1.1 billion of long-term debt (see Note 6 – Debt and Banking Arrangements).

Liquidity

Williams expects to have sufficient liquidity to manage its businesses in 2026 based on forecasted levels of cash flow from operations and other sources of liquidity. Williams’ potential material internal and external sources and uses of liquidity are as follows:

Sources:

Cash and cash equivalents on hand

Cash generated from operations

Distributions from equity-method investees

Utilization of the credit facility and/or commercial paper program

Cash proceeds from issuance of debt and/or equity securities

Proceeds from asset monetizations

Uses:

Working capital requirements

Capital and investment expenditures

Product costs

Gas & NGL Marketing Services payments for transportation and storage capacity and gas supply

Other operating costs, including human capital expenses

Quarterly dividends to shareholders

Repayments of borrowings under the credit facility and/or commercial paper program

Debt service payments, including payments of long-term debt

Distributions to noncontrolling interests

Share repurchase program

As of June 30, 2026, Williams had $28.1 billion of long-term debt due after one year. Potential sources of liquidity available to address these maturities include cash generated from operations, proceeds from refinancing, the credit facility, the commercial paper program, and proceeds from asset monetizations.

Potential risks associated with Williams’ planned levels of liquidity discussed above include those previously discussed in Company Outlook.

As of June 30, 2026, Williams had a working capital deficit of $3.4 billion, including cash and cash equivalents and long-term debt due within one year.

Effective May 19, 2026, Williams, together with Transco and NWP, extended the maturity of the Williams Credit Agreement to 2031 and entered into the new 364-Day Credit Agreement. Transco and NWP are each subject to borrowing sublimits of $500 million under the existing facility and $100 million under the new facility. See Note 6 – Debt and Banking Arrangements.

Williams’ available liquidity is as follows:

(1)In managing its available liquidity, Williams does not expect a maximum outstanding amount in excess of the capacity of its credit facility inclusive of any outstanding amounts under its commercial paper program. Williams had $475 million of Commercial paper outstanding at June 30, 2026. Through June 30, 2026, the highest amount outstanding under the commercial paper program and credit facility during 2026 was $735 million.

(2)Williams expects to be in compliance with the associated financial covenants for the June 30, 2026, reporting period.

Dividends

Williams increased the regular quarterly cash dividend to common stockholders from $0.500 per share paid in each quarter of 2025, to $0.525 per share paid in March and June 2026.

Distributions from Equity-Method Investees

The organizational documents of entities in which Williams has an equity-method investment generally require periodic distributions of their available cash to their members. In each case, available cash is reduced, in part, by reserves appropriate for operating their respective businesses.

Credit Ratings

The interest rates at which Williams is able to borrow money are impacted by its credit ratings, which are currently as follows:

These credit ratings are included for informational purposes and are not recommendations to buy, sell, or hold Williams securities, and each rating should be evaluated independently of any other rating. No assurance can be given that the credit rating agencies will continue to assign Williams investment-grade ratings even if it meets or exceeds their current criteria for investment-grade ratios. A downgrade of its credit ratings might increase Williams’ future cost of borrowing and, if ratings were to fall below investment-grade, could require it to provide additional collateral to third parties, negatively impacting Williams’ available liquidity.

Sources (Uses) of Cash

The following table summarizes the sources (uses) of cash and cash equivalents for each of the periods presented in Williams’ Consolidated Statement of Cash Flows:

Operating activities

The factors that determine Williams’ operating activities are largely the same as those that affect Net income (loss), with the exception of noncash items, such as Depreciation, depletion, and amortization, Provision (benefit) for deferred income taxes, Equity (earnings) losses, Gain on sale of certain assets, Net unrealized (gain) loss from commodity derivative instruments, Gain on disposition of equity-method investments, Inventory write-downs, and Amortization of stock-based awards.

Williams’ Net cash provided (used) by operating activities for the six months ended June 30, 2026, increased from thesix months ended June 30, 2025, primarily due to higher operating income (excluding noncash items previously discussed), partially offset by unfavorable changes in net operating working capital in 2026, which includes the payment of Transco’s rate refunds in 2026, and unfavorable changes in margin requirements.