Investor Presentation June 2023

Q1 2023 Production by Basin NOG's Production Mix Continues to Become More Diversified and Balanced with the Permian Leading the Charge. 13% 52% 35% Region Williston Permian Marcellus . Permian production was record in total and as a portion of NOG's production mix (35%) • Strong, near-record Williston production, with growth projected in the coming quarters • Nearly flat Marcellus production quarter over quarter, despite limited activity Investor Presentation June 2023 | 27 NOG

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