Exhibit 99.1 Granite Ridge Resources, Inc. Reports First Quarter 2024 Results Dallas, Texas, May 9, 2024 – Granite Ridge Resources, Inc. (“Granite Ridge” or the “Company”) (NYSE: GRNT) today reported financial and operating results for the first quarter of 2024. First Quarter 2024 Highlights • Grew production 3% to 23,842 barrels of oil equivalent (“Boe”) per day (45% oil), from 23,167 Boe per day for the first quarter of 2023. • Reported net income of $16.2 million, or $0.12 per diluted share, versus $36.9 ...