BP has made its largest oil and natural gas discovery in 25 years off the coast of Brazil, it said Monday, in a potential big boost for the British company following its strategic shift away from renewable energy to refocus on fossil fuels.

BP is seeking to bolster oil and gas in its portfolio to regain investor confidence and revive underperforming shares.

BP has reported its biggest oil and gas find this century off Brazil's west coast, potentially boosting its crude oil production.