National Fuel Gas Company Investor Presentation — August 2021

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Investor Presentation

Q3 Fiscal 2021 Update

August 5, 2021National Fuel is committed to the safe and environmentally

conscious development, transportation, storage, and distribution

of natural gas and oil resources.

For additional information, please review our Corporate Responsibility Report . 2

NFG: A Diversified, Integrated Natural Gas Company

Developing our large, high- quality

acreage position in Marcellus &

Providing safe, reliable and affordable service to customers in WNY and NW Pa.Upstream

20EBITDA(1)Expanding and modernizing pipeline infrastructure to provide outlets for Appalachian natural gas production~1.2 Million

Appalachia~870 MMcf /day

NetAppalachian natural

Daily interstate pipeline capacity under contract

customers$341 Million

Investments in safety since 2016

(1) This presentation includes forward- looking statements. Please review the safe harbor for forward looking statements at the end of this presentation.

(2) Twelve months ended June 30, 2021. A reconciliation of Adjusted EBITDA to Net Income as presented on the Consolidated Statem ent of Income and Earnings Reinvested in the Business is included at the end of this presentation.

(3) Average net Appalachian production for the three months ended June 30, 2021. Total net Seneca production for the three months ended June 30, 2021 was ~910 MMcf /day. 44% of NFG

EBITDA(2)Why National Fuel?

4Diversified Assets Provide Stability and Long -Term Growth Opportunities

Integrated Model Enhances Shareholder Value

Expect to Generate Significant Free Cash Flow in Fiscal 2022 and Beyond