A.J. Foyt Enterprises
Dalton Kellett
Sébastien Bourdais
Charlie Kimball
(GPs 5-6)
JR Hildebrand
(GP 6)
Andretti Autosport Colton Herta
Alexander Rossi
Ryan Hunter-Reay
Stefan Wilson
(GP 6)
Andretti Herta Marco Andretti
(GP 6)
Andretti Steinbrenner James Hinchcliffe
Arrow McLaren SP Patricio O'Ward
Felix Rosenqvist (GPs 1-7, 10-16) Oliver Askew (GP 8)
Kevin Magnussen (GP 9)
Juan Pablo Montoya
(GPs 5-6)
Carlin Max Chilton (GPs 1-2, 6-12, 14-16) Conor Daly (GPs 3-4, 13) Chip Ganassi Racing Marcus Ericsson
Scott Dixon
Alex Palou
Jimmie Johnson (GPs 1-2, 5, 7-12, 14-16)
Tony Kanaan (GPs 3-4, 6, 13) Dale Coyne Racing
Ed Jones
Romain Grosjean (GPs 1-2, 5, 7-16) Pietro Fittipaldi (GPs 3-4, 6) Cody Ware (GP 9, 11-12) Ryan Norman (GP 10) Pietro Fittipaldi (GP 13) Dreyer & Reinbold Racing Sage Karam
(GP 6)
Ed Carpenter Racing Conor Daly (GPs 1-2, 5, 7-12, 14-16) Ed Carpenter (GPs 3-4, 6, 13)
Rinus VeeKay (GPs 1-8, 10-16) Oliver Askew (GP 9) Conor Daly
(GP 6)
Meyer Shank Racing Helio Castroneves (GP 6, 11-12, 14-16) Jack Harvey
Paretta Autosport
Simona De Silvestro
(GP 6)
Rahal Letterman Lanigan Racing Graham Rahal
Takuma Sato
Santino Ferrucci (GPs 6-8, 10-11) Team Penske Josef Newgarden
Will Power
Simon Pagenaud
Scott McLaughlin
Top Gun Racing RC Enerson
(GP 6)