Investor Presentation June 2023

Leading Non-Op E&P Franchise Marcellus 13% Permian 35% Q1-23 PRODUCTION BY REGION (BOE) 0 Williston 52% Region Williston Permian Marcellus • • NOG's acquisitions have created a high return, national non-op franchise that is benefitting from economies of scale; ~8,000 net acres were added to Permian footprint in Q4-22 & Q1-23 ⚫ NOG is positioned to continue to capitalize on increased non-operated opportunities as the preferred non-op consolidator MT ND SD NM TX PA Q1-23 PRODUCTION BY COMMODITY (BOE) Commodity Type Oil Gas 62% 0 38% Investor Presentation June 2023 | 5 NOG

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