Royal Dutch Shell has agreed to buy BG Group for about 47 billion ($92.4 billion) in cash and shares - the oil and gas industry's biggest deal in at least a decade.
The acquisition is the most significant response yet to the slump in oil prices and could set in motion a series of mergers as the largest energy companies look to cut costs and restore profits.
The deal is equal to about 13.67 a share and gives BG a market value of about 47 billion. It's a premium of about 50 per cent on BG's closing share price yesterday.
The merged company, led by Shell chief executive Ben van Beurden, will boast a market value twice the size of BP and surpass Chevron.
Shell, struggling to rebound from its worst production performance in 17 years, will swell its oil and natural gas reserves by 28 per cent with the combination and inherit a management team that carved out a unique niche in liquefied natural gas (LNG).