Exhibit 99.1 PRESS RELEASE BRISTOW GROUP REPORTS FOURTH QUARTER AND FULL YEAR 2023 RESULTS ACHIEVES 2023 INCREASED OUTLOOK AND AFFIRMS 2024 OUTLOOK Houston, Texas March 5, 2024 • Total revenues of $337.9 million in Q4 2023 compared to$338.1 million in Q3 2023 • Net loss of $7.9 million, or$0.28 per diluted share, in Q4 2023 compared to net income of $4.3 million, or$0.15 per diluted share, in Q3 2023 • EBITDA adjusted to exclude special items, asset dispositions and foreign exchange gains (losses) was $4 ...