Red Bull has confirmed that it will switch from current fuel and lubricants supplier Total to ExxonMobil for the 2017 season.
ExxonMobil, mainly through its Mobil 1 brand, has been a long-time McLaren partner, but it's believed Red Bull's deal with the American oil giant will see McLaren switch suppliers, possibly to BP/Castrol.
Red Bull will continue to use Renault's power units – rebranded as Tag Heuer – but the deal will see them dump Renault's preferred fuel and lubricants partner Total, which has worked with Red Bull for a number of seasons.
"Mobil 1 and Red Bull Racing are two global brands that share a passion for racing, performance and innovation," said team boss Christian Horner.
"Mobil 1 has been an iconic brand in Formula 1 for more than 30 years and our new partnership provides us with a unique opportunity to tap into ExxonMobil’s world class expertise."
"In addition to welcoming ExxonMobil to the Red Bull Racing stable, I would like to extend my thanks and appreciation to the technical team at Total, who have made a valuable contribution to our success in Formula 1 during our partnership."