Activist investor Bluebell Capital Partners is calling for the ouster of BP (NYSE:BP) Chairman Heldge Lund due to the oil giant's performance. London-based Bluebell has written to the board twice in recent weeks criticizing the oil behemoth's management and approach,

An activist investor famed for ousting senior leadership has called for BP chair Helge Lund to quit after the oil major’s “embarrassing” performance. Bluebell Capital Partners, a London-based hedge fund,

The firm has lagged UK rival Shell and US oil giants Chevron and ExxonMobil, which have doubled down on profitable fossil fuels while BP has focused on renewables.