Market Cap

The Williams Companies, Inc. Market Capitalization:

$74.31 Billion

USD as of Jan. 1, 2026

business The Williams Companies, Inc. Company Profile

The Williams Companies, Inc. Main Stock Listing

NYSE: WMB

Market Capitalization History of The Williams Companies, Inc.

Market capitalizations are calculated from the opening stock price at the beginning of each month.

Top Competitors by Market Capitalization

Industry: Oil & Gas Midstream
Company Market Cap (USD)
Enbridge Inc. $105.24 B
Enterprise Products Partners L.P. $69.63 B
Kinder Morgan, Inc. $61.65 B
TC Energy Corporation $58.37 B
Energy Transfer LP $56.96 B
Sector: Energy
Company Market Cap (USD)
Aramco $1.540 T
ExxonMobil $522.89 B
Chevron $314.11 B
PetroChina $262.72 B
Shell $211.90 B

Yearly evolution of The Williams Companies, Inc. market cap

Date Market Cap YoY Change
Jan. 1, 2026 $74.31 B 2.47%
Jan. 1, 2025 $72.52 B 64.18%
Jan. 1, 2024 $44.17 B 10.20%
Jan. 1, 2023 $40.08 B 8.00%
Jan. 1, 2022 $37.11 B 41.03%
Jan. 1, 2021 $26.32 B 2.61%
Jan. 1, 2020 $25.65 B -23.17%
Jan. 1, 2019 $33.38 B -14.21%
Jan. 1, 2018 $38.91 B 8.84%
Jan. 1, 2017 $35.75 B 49.43%
Jan. 1, 2016 $23.92 B -56.00%
Jan. 1, 2015 $54.37 B 8.32%
Jan. 1, 2014 $50.19 B 15.52%
Jan. 1, 2013 $43.45 B 21.62%
Jan. 1, 2012 $35.73 B 30.99%
Jan. 1, 2011 $27.27 B 29.51%
Jan. 1, 2010 $21.06 B 47.28%
Jan. 1, 2009 $14.30 B -55.74%
Jan. 1, 2008 $32.31 B 18.45%
Jan. 1, 2007 $27.27 B 13.21%
Jan. 1, 2006 $24.09 B 41.82%
Jan. 1, 2005 $16.99 B 65.78%
Jan. 1, 2004 $10.25 B 212.96%
Jan. 1, 2003 $3.27 B -81.67%
Jan. 1, 2002 $17.87 B -50.78%
Jan. 1, 2001 $36.30 B

Market capitalization is calculated from the opening stock price at the beginning of each year.

Company Description

The Williams Companies, Inc., is a company primarily involved in natural gas processing and transportation tracing its origins to 1908. It operates interstate natural gas and gas liquids pipelines between supply basins and consuming areas in the central and northwestern states, and the Gulf of Mexico and northeastern states, together with offshore platforms, gas plants, fractionators, and storage facilities.

business The Williams Companies, Inc. Company Profile

The Williams Companies, Inc. Categories

United States languages Energy languages Oil & Gas Midstream
United States Energy United States Oil & Gas Midstream

Stocks & Indices

The Williams Companies, Inc. has the following listings and related stock indices.


Stock: NYSE: WMB

Stock: FSX: WMB

Stock: XETR: WMB

What is a company's market capitalization?

The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.