OSLO, Aug 15 (Reuters) - Norwegian oil and gas investments are expected to hit a record this year and to stay high in 2025, a national statistics office (SSB) survey showed on Thursday.

The country's biggest business sector now expects to invest an all-time-high 257 billion Norwegian crowns ($23.99 billion) in 2024, up from a 246.9 billion crown estimate made in May and exceeding a previous record of 224 billion crowns in 2014. ($1 = 10.7126 Norwegian crowns) (Reporting by Nerijus Adomaitis and Terje Solsvik, editing by Nora Buli)