A group representing 2,500 pensioners from BP's pension fund have taken legal action against BP and the pension fund's trustee. They argue that decisions made in 2022 and 2023 have led to an 11% real-terms reduction in pensions. Pensioners had been assured their pensions would increase in line with cost of living wherever possible. Despite the pension fund's £5 billion surplus, increases have been substantially lower than allowed. The group reluctantly took formal legal steps after 7 months of failed communications.