WILLIAMS COMPANIES, INC.

Appendix B

Emission Calculation Parameters

GHG Emissions Intensity Reporting. Gross direct (Scope 1) greenhouse gas emissions in millions of metric tons of CO2 -equivalent (“CO2e”). The consolidation approach is operational control and includes CO2 , CH4 and N2O. Emissions are based on calendar years. Emissions from facilities that are applicable under the U.S. EPA Greenhouse Gas Reporting Program (“GHGRP”) are calculated using the GHGRP methodology. Emissions from facilities that are not applicable to the GHGRP due to reporting thresholds are calculated referencing GHGRP and ONE Future protocols. In accordance with EPA’s GHGRP Subpart W (Petroleum and Natural Gas Systems) revisions, Scope 1 emissions for 2023 incorporate an updated reciprocating engine vented emissions emission factor for the Gathering and Boosting segment and an AR5 Global Warming Potential (“GWP”) for CO2, CH4 and N2O. Additionally, Scope 1 emissions for 2023 incorporate offshore Scope 1 emission sources additional to blowdowns, Scope 1 emissions associated with liquid service, and Scope 1 emissions from equipment that Williams owns and operates on producer well pads. Scope 1 emissions for 2023 include seven additional new sources: purging, mobile sources, compressor start-ups, Acid Gas Removal (“AGR”) units that process liquid streams, crankcase venting, produced water tanks, and pipeline meter station and valve sites. Scope 1 emissions for 2019–2022 have been restated to include all previously listed emission methodology updates and new emission sources for comparison. Emissions that are not applicable under GHGRP or ONE Future protocol are calculated using GHGRP protocols or best engineering practice. Global Potential Warming rates are 28 for CH4 and 265 for N2O. Williams does not produce biogenic gases from its direct operations. Williams does not produce hydrochlorofluorocarbons, perfluorocarbons, sulfur hexafluoride or nitrogen trifluoride emissions.

ONE Future Methane Intensity Reporting. ONE Future methane intensities are expressed as a percent to align with ONE Future’s goal to achieve an average rate of methane emissions across the entire natural gas value chain that is 1% or less of total (gross) natural gas production. ONE Future has also broken down this 1% goal into sub-goals for each sector of the oil and gas industry. Williams has committed to the ONE Future 2025 methane intensity goals for industry sectors of 0.080% for gathering and boosting, 0.111% for processing and 0.301% for transmission and storage. ONE Future methane intensity metrics in this data table are by Williams’ segment and are calculated in accordance with the ONE Future methodology, including methane slip for reciprocating engines. Units are mass of methane emitted per mass of methane throughput. Intensity is based on company-specific methane throughput and is not adjusted to gross production.

Williams® Vote ENDORSEMENT_LINE SACKPACK100000 MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 Using a black ink pen, mark your votes with an X as shown in this example. Please do not write outside the designated areas. C123456789 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext 000000000.000000 ext Your vote matters – here’s how to vote! You may vote online or by phone instead of mailing this card. Participants in the Williams Investment Plus Plan must submit their vote by April 25, 2025 at 1:00 a.m. Central Daylight Time. Online Go to www.envisionreports.com/wmb or scan the QR code – login details are located in the shaded bar below. Phone Call toll free 1-800-652-VOTE (8683) within the USA, US territories and Canada Save paper, time and money! Sign up for electronic delivery at www.envisionreports.com/wmb 2025 Annual Meeting Proxy Card 1234 5678 9012 345 IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. A Proposals – The Board of Directors recommend a vote “FOR” the election of each of the nominees listed below. + 1. Elect 11 Director Nominees for a One-Year Term. For Against Abstain For Against Abstain For Against Abstain 01 - Alan S. Armstrong [ ][ ][ ] 02 - Stephen W. Bergstrom [ ][ ][ ] 03 - Michael A. Creel [ ][ ][ ] 04 - Stacey H. Doré [ ][ ][ ] 05 - Carri A. Lockhart [ ][ ][ ] 06 - Richard E. Muncrief [ ][ ][ ] 07 - Peter A. Ragauss [ ][ ][ ] 08 - Rose M. Robeson [ ][ ][ ] 09 - Scott D. Sheffield [ ][ ][ ] 10 - William H. Spence [ ][ ][ ] 11 - Jesse J. Tyson [ ][ ][ ] The Board of Directors recommends a vote “FOR” proposals 2 and 3. For Against Abstain 2. Approve, on an Advisory Basis, the Compensation of our Named Executive Officers. [ ][ ][ ] For Against Abstain 3. Ratify the Selection of Ernst & Young LLP as the Company’s Independent Registered Public Accounting Firm for the Fiscal Year ending December 31, 2025. [ ][ ][ ] B Authorized Signatures – This section must be completed for your vote to count. Please date and sign below. Please sign exactly as name(s) appears hereon. Joint owners should each sign. When signing as attorney, executor, administrator, corporate officer, trustee, guardian, or custodian, please give full title. Date (mm/dd/yyyy) – Please print date below. Signature 1 – Please keep signature within the box. Signature 2 – Please keep signature within the box. / / C 1234567890 J N T MR A SAMPLE (THIS AREA IS SET UP TO ACCOMMODATE 140 CHARACTERS) MR A SAMPLE AND MR A SAMPLE AND MR A SAMPLE AND MR A SAMPLE AND MR A SAMPLE AND MR A SAMPLE AND MR A SAMPLE AND MR A SAMPLE AND + 1PCF 641673 043LVB

The Williams Companies, Inc. Annual Meeting of Stockholders April 29, 2025 2:00 p.m. Central Daylight Time Virtually via live webcast at meetnow.global/MJXX5VF PLEASE SEE THE REVERSE SIDE FOR VOTING INSTRUCTIONS You can vote by telephone or Internet 24 hours a day, 7 days a week. Small steps make an impact. Help the environment by consenting to receive electronic delivery, sign up at www.investorvote.com/wmb IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE. The Williams Companies, Inc. + Notice of 2025 Annual Meeting of Stockholders Proxy Solicited by Board of Directors for Annual Meeting – April 29, 2025 Alan S. Armstrong, Micheal G. Dunn, and T. Lane Wilson, (the “Proxies”) or any of them, each with the power of substitution, are hereby authorized to represent and vote the shares of the undersigned, with all the powers which the undersigned would possess if personally present, at the Annual Meeting of Stockholders of The Williams Companies, Inc. to be held on April 29, 2025 or at any postponement or adjournment thereof. Shares represented by this proxy will be voted as indicated by the stockholder. If no such directions are indicated, the Proxies will have authority to vote FOR the election of the Board of Directors and FOR items 2 and 3. In their discretion, the Proxies are authorized to vote upon such other business as may properly come before the meeting. (Items to be voted appear on reverse side) CNon-Voting Items Change of Address – Please print new address below. Comments – Please print your comments below. +