Granite Ridge Investor Presentation Deck

Strategy & Execution Appendix Non-GAAP Reconciliation of Inventory Acquisition. $M Overview Property acquisition costs: Proved Property acquisition costs: Unproved Development Costs Total costs incurred for oil and natural gas properties Assets Less: Development costs (excluding drilling carry) Less: Production acquisition Inventory acquisitions 2Q '23 $1,309 3,161 58,739 $63,209 (55,683) $7,526 2Q '22 $2,895 12,332 44,124 $59,351 (37,817) $21,534 1H '23 $19,298 12,791 157,345 $189,434 (147,181) (17,989) $24,264 1H '22 $7,955 @ 12,789 105,025 $125,769 (93,575) (560) $31,634 GRANITE RIDGE 26

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