Formula One team Williams had Mobil sponsorship from 1978 to 1988. In 1987 it switched to Benetton. From 1995 until 2016, it sponsored McLaren. Mobil 1 was also lubricants supplier for Toyota F1 team in 2002 until 2009. In 2017, Mobil 1 switched to Red Bull Racing.

What's the best answer to this question: is mobil 1 the official sponsor for red bull racing f1 team?
yes