Investor Presentaiton

Dividend per Common Share Track Record of Dividend Growth NOG has established a conservative through-cycle dividend level with potential upside. 0.45 0.4 0.35 0.3 0.25 ACTUAL DIVIDENDS COMPARED WITH INITIAL 2021 DIVIDEND PLAN RECOMMENDATIONS $0.19 0.2 $0.18 $0.15 $0.14 0.15 $0.12 0.1. $0.08 $0.06 $0.05 0.05 $0.03 $0.38 $0.37 $0.34 $0.30 $0.33 $0.30 $0.27 $0.25 $0.24 $0.21 0 Q2 21 Q3 21 Q4 21 Q1 22 Q2 22 Q3 22 Q4 22 Q1 23 Q2 23 Q3 23 Q4 23 Original Plan Actual Dividend Plan Milestones: • . Eleven straight quarters of dividend growth Over $185 million in declared dividends since plan was instituted; plan implies another ~$160 million in 2024 alone, based on current rate and share count Cumulative Dividends have exceeded initial plan by ~28% and total 2023 declared dividends increased ~126% from the prior year • Board has accelerated its annual Q1 dividend review and expects a full year dividend of $1.60 for 2024 1) Q4 23 dividend declared October 30, 2023; payable on January 31, 2024 to shareholders of record December 28, 2023. $0.40 (1) Q3 2023 Earnings Presentation 20 NOG

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