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Quote this valuation with its source: Fair value, Potential value and the price at analysis.
FAQ
WMB — frequently asked questions
Is The Williams Companies Inc. overvalued?
In our latest published analysis dated 2026-09-28, WMB looks meaningfully overvalued. The price recorded at analysis is USD 69.3 versus our fair value of USD 38.3; the high endpoint is presented separately as potential value of USD 41.9. That implies roughly 44.6% downside to fair value at that date.
Our latest published report, analyzed 2026-09-28, gives WMB a fair value of USD 38.3 and a potential value of USD 41.9. The conclusion is triangulated across multiple valuation models and weighted by reliability for The Williams Companies Inc.'s archetype; it is a dated research output, not a live price.
Should I buy WMB now?
Our latest published rating for WMB, analyzed 2026-09-28, is Sell. The Williams Companies Inc. looks meaningfully overvalued at the analysis-date price of USD 69.3 versus fair value of USD 38.3; potential value is USD 41.9. This is research for educational purposes, not personalized investment advice.
What are the biggest risks for WMB?
The dedicated bear-case section in our report analyzed 2026-09-28 documents The Williams Companies Inc.'s material risks, evidence, thresholds, and thesis-invalidation conditions. Scenario-specific explanations remain in that section so the report does not repeat or decontextualize them elsewhere.
What is WMB's rating?
Our latest published rating for WMB, analyzed 2026-09-28, is Sell, with a published moat assessment of 7.5/10 (Narrow). It reflects our fair value of USD 38.3, the potential value of USD 41.9, and the price recorded at analysis (USD 69.3).
Acceleration of power generation and data center interconnect demand along the Transco corridor, leading to higher contracted tariff rates and faster-than-anticipated commercialization of power lateral joint ventures.
Main risk
Annual capital expenditures exceeding USD 5,500M in FY2026 or FY2027 combined with regulatory permitting slippage that delays commercial in-service dates for power lateral expansions past 2028,,.
We rate The Williams Companies Inc. a Sell because the share price of USD 69.26 on September 25, 2026 trades at an 80.6% premium to our fundamental Fair value of USD 38.34,.2
A Sell rating indicates that investors should eliminate or reduce exposure to The Williams Companies. At USD 69.26 on September 25, 2026, the equity is substantially overvalued relative to its fundamental cash-generating capability, offering an expected downside of 44.64% to fundamental Fair value,.2
On September 25, 2026, the stock traded at USD 69.26, standing well above our Fair value of USD 38.34 and exceeding our Potential value of USD 41.89,. Even in an optimistic scenario where project execution is flawless, the price reflects a 65.3% premium over the high end of our valuation range.2
The primary downside risk to the business is protracted capital expenditure overruns and lateral permitting delays during the ongoing infrastructure build phase,. Capital outlays of USD 4,893M in FY2025 drove capex-to-depreciation to 2.09x; if capital spending remains elevated above USD 5,500M annually while regulatory approvals push commercial in-service dates past 2028, heavy reinvestment will consume operating cash flows of USD 5,898M, stall debt reduction on USD 29,393M in debt, and further compress equity returns,.2,3,5
The main reason value per share could rise toward Potential value of USD 41.89 is that Williams operates the irreplaceable Transco interstate pipeline network, which connects low-cost natural gas basins directly to rising power generation and data center load centers,. Expansion projects such as Line 200 are fully subscribed under long-term take-or-pay reservation contracts, ensuring that as new transmission capacity enters commercial service post-2027 and capital intensity moderates, operating profits convert directly into high-margin recurring cash flow.3,6
Premier Transco corridor and contracted power demand
Williams owns the Transco interstate transmission corridor connecting low-cost Gulf supply to premium Southeast and Mid-Atlantic demand centers. Power generation and data center interconnects are fully subscribed on a long-term take-or-pay basis,.3,6
Accretive Momentum integration and post-2027 cash flow inflection
The acquisition of Momentum adds 4 Bcf/d of take-or-pay pipeline capacity and expands the Haynesville gathering footprint. As capital expenditure moderates post-2027 from FY2025 levels of USD 4,893M, operating cash flows will convert into substantial free cash flow,.3,5
Efficient Scale
House recommendation
We rate The Williams Companies a Sell because the share price of USD 69.26 on September 25, 2026 trades at an 80.6% premium to fundamental Fair value of USD 38.34, discounting multi-year growth expectations that far exceed sustainable midstream cash generation,.2
Company overview
NGLs are extracted from the natural gas stream in Williams’ Oak Grove and Fort Beeler cryogenic processing plants. Ethane produced at the Oak Grove de-ethanizer is transported to markets via its 50-mile ethane pipeline to Houston, Pennsylvania. The remaining mixed NGL stream from the de-ethanizer is then transported via Williams’ 60-mile NGL pipeline and fractionated at either its Moundsville or Harrison fractionation facility. Laurel Mountain has a long-term, dedicated, volumetric-based fee agreement, with exposure to natural gas prices subject to a floor, to gather the anchor customer’s production in the western Pennsylvania area of the Marcellus Shale.
Detailed discussion of each of its reportable segments follows. For a discussion of ongoing expansion projects, see Part II, Item 7. This segment includes Williams’ natural gas gathering, compression, processing, and NGL fractionation businesses in the Marcellus and Utica Shale regions in Pennsylvania, West Virginia, New York, and Ohio.
A simultaneous realization of downside pressures exposes The Williams Companies to sharp equity de-rating. If environmental and regulatory reviews push lateral pipeline in-service dates into 2030+, capital expenditures would remain elevated well above historical maintenance levels ($2,250.78M in FY2025) rather than moderating post-2027. Under this stress case, reinvestment outlays consume operating cash flows ($5,898M in FY2025), keeping free cash flow depressed near $1,005M while total debt of $29,393M with cash of only $63M must be refinanced at elevated pre-tax rates of 6.35%. Simultaneously, if regional basis spreads contract, Gas & NGL Marketing revenue ($6,047M in FY2025) would compress consolidated operating margins toward historical troughs (16.98% in FY2022). With growth capped at 4.5% CAGR and terminal multiple de-rating from 18.0x toward peer averages of 14.4x-15.0x, intrinsic value would drop toward the lower valuation bound of $34.85, representing over 49% downside from the reference price of $69.26.
The Williams Companies derives its narrow economic moat from an irreplaceable network of interstate natural gas transmission pipelines and processing assets, anchored by the flagship Transco pipeline system. Connecting the Gulf Coast and Haynesville supply basins directly to utility and industrial load centers in the Mid-Atlantic and Southeast, Transco handles approximately one-third of all natural gas consumed in the United States. Replicating this physical footprint under contemporary regulatory, legal, and environmental permitting frameworks is virtually impossible, shielding Williams from direct greenfield pipeline competition and preserving an efficient scale advantage.
This physical infrastructure moat is reinforced by long-term commercial contracts with investment-grade utility and power generation counterparties. Transmission & Power Gulf generated $5,404M in FY2025 revenue, primarily via demand reservation charges under take-or-pay agreements. In these arrangements, shippers pay for pipeline capacity regardless of actual utilization, guaranteeing stable fee generation and protecting operating margins against short-term commodity price swings. This contractual structure underpins the company's $5,898M of FY2025 operating cash flow and allows management to project accretive expansion via projects like the Momentum acquisition adding 4 Bcf/d of take-or-pay capacity.
The highlighted cell is Fair value when every assumption sits at its base level ($38.34). Each row and column shows what Fair value becomes when one assumption moves.
Maintain Sell; Maintain portfolio underweight; re-examine capital expenditure discipline and commercial lateral in-service timing without adding exposure.
Trigger: Consolidated EBITDA and adjusted operating income exceeding upper guidance framework alongside accelerated commercial execution on power laterals and higher marketing spreads.
Even if operational performance exceeds consensus expectations, shares trade at $69.26 at an extreme premium over Fair value of $38.34, meaning operational execution cannot bridge the fundamental valuation disconnect.
The midstream sector benchmark exhibits a capex-to-revenue ratio of 19.6% and a capex-to-depreciation ratio of 2.13x. Williams' FY2025 capex of $4,893M against D&A of $2,347M results in a capex-to-depreciation ratio of 2.09x. Management confirmed that capital needs remain elevated relative to earnings through 2027 before major growth projects commercialize in 2028.3,5
Bull cycle
The midstream industry is experiencing an infrastructure super-cycle propelled by secular electrification, artificial intelligence data center load growth, and expanding Gulf Coast LNG export capacity projected to grow from 18 Bcf/d toward 40+ Bcf/d over the next decade. These macro tailwinds drive robust demand for pipeline interconnects and take-or-pay capacity reservation commitments.
Bear cycle
The industry downside cycle is characterized by lengthy environmental and regulatory permitting delays pushing major greenfield pipelines into 2030+, narrowing regional gas basis spreads, higher financing costs on refinanced debt (pre-tax debt cost 6.35%), and capital project cost inflation compressing midstream cash conversion.
§11 Position management
Sizing
0%
The stock trades at $69.26 as of 2026-09-25, representing an 80.65% premium over the house Fair value midpoint of $38.34 and well above Potential value of $41.89. Given high debt of $29,393M and elevated transformation capex of $4,893M, zero portfolio weighting (0%) is recommended to avoid capital impairment.2,5
Risk
Portfolio risk management requires aligning exposure with the Sell rating. WMB carries $29,393M in debt with cash of $63M. Investors seeking midstream energy or electrification exposure should underweight or eliminate positions at reference levels of $69.26 due to excessive valuation multiples (26.81x forward P/E) and substantial downside to Fair value of $38.34.
§12 Investor perspectives
Total Return / Value Investor
Avoid
The stock trades at USD 69.26 on September 25, 2026, representing an 80.6% premium to fundamental Fair value of USD 38.34,. A forward P/E of 26.81x leaves no margin of safety against potential multiple de-rating toward peer medians of 19.91x.2
Income / Dividend Growth Investor
Avoid
While the dividend yield appears stable, heavy transformation capital spending ($4,893M capex in FY2025) and high debt of $29,393M constrain discretionary dividend growth until free cash flow inflects post-2027.
§14 Final recommendation
Action
Sell
We recommend a Sell on The Williams Companies Inc. Shares trade at USD 69.26 as of September 25, 2026, which represents an 80.6% premium to our fundamental Fair value of USD 38.34 and an expected downside of 44.6%,. Market expectations embed flawless execution across pipeline expansions while discounting balance sheet leverage ($29,393M total debt) and an ongoing transformation capital cycle.2
While the Transco pipeline network provides a stable narrow economic moat backed by contracted take-or-pay reservation revenues,, elevated capital requirements through 2027 will suppress free cash flow conversion,. Investors should reallocate capital into midstream peers trading at more attractive through-cycle valuations.
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Sources
The records this analysis drew on, as they stood when it was run.
The Transco corridor functions as the primary interstate natural gas artery serving East Coast and Gulf Coast markets, delivering $5,404M in Transmission & Power Gulf revenue in FY2025. The extreme difficulty of securing contiguous interstate rights-of-way and navigating FERC certificate requirements prevents competitors from duplicating this capacity, granting Williams an efficient scale advantage.6
The bear scenario contemplates protracted environmental permitting hurdles delaying lateral in-service dates deeper into the decade, while narrowing regional natural gas basis spreads compress marketing profitability. Reinvestment requirements remain elevated above depreciation, restraining free cash flow conversion and prompting a valuation multiple contraction toward midstream peer levels. Disconfirmation would occur if project milestones clear on schedule and commodity spreads widen.
Ways this thesis can break
Valuation multiple de-rating toward peer midstream medians as enthusiasm for power electrification cools.
WMB trades at a forward P/E of 26.81x, whereas peer KMI trades at 19.91x forward P/E and TRGP at 23.00x. A 20% multiple contraction from the modeled 18.0x terminal multiple to 14.4x aligns with broader midstream cyclical re-rating if power project commercialization slows.2
FV impact
-8.2%
Terminal multiple 20% lower
Trigger
Within 24 months
Gas & NGL Marketing basis spread compression and pipeline operating cost inflation.
Gas & NGL Marketing Services generated $6,047M in FY2025 (40.59% of revenue). Historical operating margins dropped to 16.98% in FY2022 and 20.58% in FY2021. A 300 bps compression from FY2025 reported 28.16% to below 25.16% occurs if basis spreads narrow.5,6
FV impact
0%
Operating margin 3 points lower throughout
Trigger
Within 18 months
Credit spread widening and debt refinancing friction amid tight liquidity.
WMB holds $29,393M in total debt with pre-tax cost of debt at 6.35%, against only $63M in cash. Refinancing debt at wider credit spreads and higher equity risk premium would push equity discount rates up 200 bps from 7.85%.1,2,5
FV impact
-3.1%
Cost of capital 2 points higher
Trigger
Within 12 months
Extended transformation build phase with persistent capital expenditure overruns and delayed lateral in-service dates.
Capex reached $4,893M in FY2025 and management guided that capital needs remain elevated relative to earnings through 2027, while key power projects face regulatory timeline slippage into 2030+. CapEx/D&A remaining above 2.0x limits EPS growth to the bear case 4.5% path.3,5
FV impact
-3.8%
The analyst's bear scenario path and multiple as the base case
Trigger
Within 36 months
Early-warning signals to monitor
The five developments that would weaken our investment case.
Persistent capital expenditure inflation or lateral construction delays preventing capital intensity from moderating post-2027, impairing owner cash flow conversion.
Current:2.09x in FY2025 ($4,893M capex over $2,347M D&A)
Customer bypass pipeline construction or adverse FERC rate case rulings reducing allowed transmission tariff rates and throughput commitments.
Current:$5,404M in FY2025
Alert ifNegative year-over-year revenue growth (< 0.0%) in FY2027
However, the moat remains categorized as narrow rather than wide due to structural midstream exposures. Gas & NGL Marketing Services generated $6,047M in FY2025 —accounting for 40.59% of consolidated top-line revenue ($14,899M). While marketing operations leverage owned transport capacity to optimize feedgas flows, segment profitability remains tied to regional commodity basis spreads and lacks the unyielding barrier to entry of regulated interstate pipes. Furthermore, substantial debt obligations ($29,393M in total debt) and FERC rate regulatory constraints limit long-term excess return expansion.
01Efficient Scale — The Transco corridor functions as the primary interstate natural gas artery serving East Coast and Gulf Coast markets, delivering $5,404M in Transmission & Power Gulf revenue in FY2025. The extreme difficulty of securing contiguous interstate rights-of-way and navigating FERC certificate requirements prevents competitors from duplicating this capacity, granting Williams an efficient scale advantage.Wide
02High Switching Costs & Take-or-Pay Contractual Moat — Direct physical interconnects to local utility distribution systems, power plants, and LNG export facilities embed customers in multi-year take-or-pay reservation contracts. Line 200 expansion and lateral projects are fully subscribed under take-or-pay terms, insulating reservation fee revenue from commodity throughput swings and imposing high operational switching costs on end-users.Wide
Capital expenditure inflation and extended regulatory permitting reviews on power lateral projects delaying commercial in-service milestones into 2030+.
high
12-36 months
Commercial take-or-pay contracts secure customer fee commitments upon mechanical completion, while management utilizes phased partnerships and equity co-investments to share capital requirements.3
Regional natural gas basis spread compression and lower NGL prices reducing arbitrage margins in Gas & NGL Marketing Services.
medium
12-24 months
Physical marketing operations are linked to owned transmission capacity, and management is shifting enterprise capital toward pipe and power infrastructure to reduce gathering and marketing revenue share.3
Elevated debt load ($29,393M) requiring debt refinancing at prevailing higher borrowing rates (pre-tax cost of debt 6.35%).
Line 200 expansion and lateral projects commercialize in line with multi-year schedules
Operating margins stabilize near normalized levels despite marketing segment fluctuations
Capital intensity declines post-build phase toward ongoing maintenance requirements
The base scenario reflects the house modal expectation where execution of fully subscribed take-or-pay pipeline laterals and the integration of Momentum drive solid revenue and earnings expansion. Elevated transformation build expenditures peak across the near term before moderating, enabling free cash flow conversion to normalize. This path generates a target of $38.34 with an assessed probability of 55.0%, representing an expected return of -44.6% relative to $69.26.
Power generation interconnect demand accelerates with multi-lateral utility commitments
Momentum acquisition integration exceeds synergy expectations with margin expansion
Terminal valuation multiple expands reflecting premier infrastructure scarcity
Under the bull scenario, power generation interconnect demand accelerates rapidly, driving data center multi-lateral contract expansions and higher recontracting tariffs across the Transco corridor. Momentum synergy capture exceeds targets, expanding operating margins and lifting compound earnings growth toward double digits. Supported by fully contracted take-or-pay capacity, this path yields a target of $41.89 with an estimated probability of 20.0% and an implied return of -39.5% from the reference price of $69.26.
Quarterly financial results and annual EBITDAguidance tracking within management outlook ranges alongside steady Transco transmission throughput.
In-line earnings confirm steady take-or-pay contractual cash flows but leave the stock substantially overvalued relative to Fair value of $38.34.
Miss
Maintain Sell; Maintain defensive stance; evaluate capital budget discipline and debt refinancing friction.
Trigger: Results falling below guidance ranges driven by marketing basis spread compression, construction cost overruns, or lateral in-service delays.
Earnings quality is underpinned by long-term take-or-pay reservation contracts on interstate transmission assets that generate predictable tolling fees. However, the substantial revenue share from Gas & NGL Marketing introduces commodity spread variability, while elevated transformation capital outlays relative to operating cash generation restrict near-term free cash flow.
Metrics to watch into the print
01
Metric:
Power lateral in-service timing and commercialization
CurrentInitial projects are advancing through commissioning while larger regional projects face regulatory timelines extending deeper into the decade.
Why it matters
Timely completion of fully subscribed lateral expansions turns capital outlays into contracted take-or-pay revenue and supports operating profit growth.
In FY2025, Williams generated $5,898M in operating cash flow, delivering $1,005M in free cash flow after absorbing $4,893M in capex. Normalizing maintenance capex to 46% of total spend ($2,250.78M) yields normalized owner cash flow of $2,714.22M ($2.22 per share on 1,223.17M shares). While reported free cash flow is suppressed during the transformation build phase through 2027, underlying contractual cash generation remains strong.2,3,4,5
Williams is executing an aggressive capital deployment program, with FY2025 capex reaching $4,893M —nearly doubling FY2023 capex of $2,516M. Capital is allocated toward take-or-pay pipeline expansions, power laterals, and the $5.5B Momentum acquisition funded with $3.5B in debt and cash and $2.0B in equity. Management targets a 3.75x debt-to-EBITDA run-rate leverage framework. With total debt at $29,393M against $63M in cash, balance sheet discipline is paramount to avoid refinancing friction in a higher interest rate environment.
ROIC remains resilient through the capital build cycle because new pipeline lateral outlays are backed by multi-year take-or-pay customer reservation commitments, providing high revenue visibility as assets enter commercial service.
Williams' return on invested capital of 8.27% exceeds the computed WACC of 7.068% by 120 bps, confirming economic value creation.
Capex expanded to $4,893M in FY2025 from $2,516M in FY2023, with management guiding that capital needs remain elevated relative to earnings through 2027.
Free cash flow conversion will remain constrained near $1,005M until major power laterals and pipeline expansions enter service in 2028.
Marketing Segment Generates High Revenue Share with Thinner Margins
Gas & NGL Marketing Services generated $6,047M of revenue in FY2025, accounting for 40.59% of consolidated $14,899M.
Reported revenue exhibits cyclical volatility driven by commodity price swings, though integrated pipeline ownership cushions operating income impact ($4,196M in FY2025).
The Williams Companies Inc. (WMB) trades at 26.8x forward earnings against a peer median of 17.9x. Its EV/EBITDA of 16.7x compares with a peer median of 12.5x. The comparison uses 4 peers: Kinder Morgan Inc., Schlumberger Limited, Targa Resources Corp. and EOG Resources Inc., as of 2026-09-27 to 2026-09-28.
Secular trends
Trend
Impact
Note
Power Electrification & AI Data Center Buildouts
positive
Electric utilities and technology hyperscalers require direct natural gas pipeline interconnects to support baseload power generation for data centers, driving multi-lateral demand along the Transco corridor.
U.S. LNG Export Capacity Expansion
positive
Gulf Coast LNG export capacity is forecasted to more than double over the coming decade from ~18 Bcf/d to 40+ Bcf/d, requiring expanded feedgas takeaway from the Haynesville basin via systems like Line 200 and Momentum.
Complex environmental reviews and interstate regulatory certification processes extend greenfield pipeline development timelines into 2030+, increasing capital intensity while raising competitive entry barriers around incumbent assets.
Positioning
Williams occupies an advantaged demand-pull position connecting Haynesville and Gulf Coast gas supply directly to Mid-Atlantic and Southeast utility markets. However, Williams trades at a forward P/E of 26.81x, representing a significant valuation premium over peer Kinder Morgan (KMI) at 19.91x forward P/E with 30.07% operating margin and Targa Resources (TRGP) at 23.00x forward P/E, despite Williams' lower FY2025 operating margin of 28.16% and higher leverage.2,5
Entry tranches
Level
Action
Why
Initial fundamental re-evaluation checkpoint
Below $31.00
Value accumulation zone
Aligns with the owner earnings model lower bound of $31.07, offering a sufficient margin of safety against elevated balance sheet debt.
Enthusiasm around power electrification and data center interconnects is already priced in at 26.81x forward earnings. Any execution delays on large lateral pipeline projects into 2030+ would trigger severe multiple compression.3
Biggest risk
Annual capital expenditures exceeding USD 5,500M in FY2026 or FY2027 combined with regulatory permitting slippage that delays commercial in-service dates for power lateral expansions past 2028,,. Persistent cost inflation, supply chain bottlenecks, and environmental review litigation extend lateral construction timelines. Because capital needs remain elevated relative to earnings, reinvestment outlays absorb operating cash flows ($5,898M in FY2025), leaving the balance sheet overleveraged with total debt of $29,393M and forcing debt refinancing at pre-tax interest rates of 6.35% against cash of just $63M. Free cash flow conversion remains depressed below USD 1,005M, preventing leverage from declining toward the 3.75x target. CapEx-to-depreciation ratio remaining above 2.20x in FY2026 and FY2027 audited financial statements, alongside any reported construction timeline delay on Line 200 or Power Express laterals in quarterly SEC filings.1,2,3,4,5
Not every cited input appears here: internal calculations and intermediate model outputs have no external record, and some citations could not be matched to one.
