Oil giant Royal Dutch Shell sank to a net loss of $21.7bn (£16bn) last year after the coronavirus pandemic caused demand to slump.
The announcement comes after two of its rivals, BP and Exxon, posted similar big losses.
Looking ahead, Shell said “significant uncertainty” would continue to have a negative impact on demand for oil and gas products.
As a result, it said it might need to take measures to cut production.
In September last year, Shell announced that up to 9,000 jobs would go worldwide as the company responded to the effects of the pandemic.
Last month, it said it was cutting 330 jobs from its operations in the North Sea.
Even before the virus struck, the oil industry was already having to rethink its future plans as part of the transition away from fossil fuels.
The Covid impact means companies such as Shell are accelerating that transition.