What it does
Williams describes itself as an energy infrastructure company focused on natural gas. Its operations include natural gas gathering, treating, processing, transmission and storage; NGL fractionation, transportation and storage; and marketing services. The filing says its reportable segments are Transmission, Power & Gulf; Northeast G&P; West; and Gas & NGL Marketing Services, while upstream and corporate activities are included in Other. It also operates deepwater crude-oil pipelines and production-handling platforms in the Gulf of America.
Source: Williams Companies, Inc. (The) Form 10-K for fiscal 2025, Item 1 — sec.gov
How it makes money
The company states that gathering and treating services generally earn fees based on natural gas volumes, while gas processing uses fee-based and noncash commodity-based arrangements. It says approximately 93 percent of 2025 NGL production volumes were under fee-based contracts. Interstate pipeline transportation and storage rates are regulated by FERC or may be negotiated under tariffs and FERC policy; most of these businesses are contracted under long-term firm reservation agreements. The marketing segment provides wholesale marketing, trading, storage and transportation, and NGL marketing. Its stated reportable segments are shown in the segment table below.
Source: Williams Companies, Inc. (The) Form 10-K for fiscal 2025, Item 1 — sec.gov
Customers and geography
Williams says it serves approximately 800 customers and operates in 24 states and the Gulf of America, with operations located in the United States. Its pipeline customers include local distribution companies, utilities, municipalities, industrial users, power generators, marketers and producers. Customer concentration varies by business: the top ten gathering and processing customers represented approximately 55 percent of the related fee revenues and NGL margins in 2025, while the top ten interstate-pipeline customers represented approximately 44 percent of regulated transportation and storage revenues. Its headquarters are in Tulsa, Oklahoma.
Source: Williams Companies, Inc. (The) Form 10-K for fiscal 2025, Item 1 — sec.gov
Competition
The filing describes natural gas supply as highly competitive and says Williams primarily competes with major intrastate and interstate natural gas pipelines. It also says local distribution companies may participate in long-haul transportation through joint-venture pipelines. For marketing services, the company lists national and regional full-service energy providers, producers, pipeline marketing affiliates and other marketing companies as competitors. The filing does not name specific competing companies. It says competition in interstate transportation is based on capacity, rates, reliability, customer service, supply diversity and flexibility, and access to customers and market hubs.
Source: Williams Companies, Inc. (The) Form 10-K for fiscal 2025, Item 1 — sec.gov
Key risks
The filing’s summary of risk factors highlights:
- Dependence on continued natural gas supplies in supply basins and demand in the markets served.
- A credit-rating downgrade that could affect liquidity, access to capital and costs of doing business.
- Regulatory proceedings, including FERC proceedings, and changes in or new government regulations.
- Unexpected liabilities or insurers’ inability to satisfy claims, as the company does not insure all potential risks and losses.
Source: Williams Companies, Inc. (The) Form 10-K for fiscal 2025, Item 1A — sec.gov
People and operations
As of February 1, 2026, Williams had 5,987 full-time employees located throughout the United States; its 2025 voluntary turnover rate was 6.3 percent. The company states that Transco and NWP have no employees because Williams provides their operations, management and certain administrative services. Williams reports interests in and operation of more than 32,000 miles of pipelines, 35 natural-gas processing facilities, nine NGL fractionation facilities, approximately 23 million barrels of NGL storage capacity, and 423 Bcf of natural-gas storage capacity. The filing does not state seasonality for the company overall.
Source: Williams Companies, Inc. (The) Form 10-K for fiscal 2025, Item 1 — sec.gov