Penske sealed a one-two for IndyCar's Portland race with Will Power and Josef Newgarden leading qualifying ahead of title contender Alexander Rossi.
Rossi had led after the first flying laps of the 'Fast Six' final phase, before Power surged to the front in the final seconds with a new fastest lap at Portland, completed in 57.3467s, that beat Justin Wilson's 2007 record.
Power now has the second-most pole positions in Indycar, moving him clear of AJ Foyt, and his Portland effort keeps him on the fringes of title contention.
Reigning champion Newgarden followed his team-mate into second in the dying seconds despite a messy qualifying session.
The Penske driver almost missed out on the Fast Six before a late lap in the top 12 segment placed him just inside the cut for the final shootout.
Newgarden then began his Fast Six bid with a huge lock-up at Turn 1 that forced him into a one-lap dash to decide his place on the grid.
While Rossi lost a pole position to the Penske duo, Newgarden's late progression into the final six might never have happened without a disastrous qualifying for title favourite Scott Dixon.
The Chip Ganassi Racing driver holds a 26-point lead over Rossi, but struggled for grip on both the red- and black-walled tyres and could only qualify 11th after a late attempt to displace Newgarden from the Fast Six.
Dale Coyne Racing's Sebastien Bourdais was an impressive fourth after his team was forced into a hasty pre-qualifying repair job when the Frenchman crashed out of third practice following a lap that was good enough to top the session.
Ryan Hunter-Reay and Zach Veach made it three Andretti cars in the top six by qualifying fifth and sixth respectively.
Schmidt Peterson Motorsports's James Hinchcliffe was seventh ahead of the under pressure Ganassi driver Ed Jones. Hinchcliffe's team-mate Carlos Munoz, standing in for the injured Robert Wickens, qualified a decent 14th.
Marco Andretti could only secure ninth and was the only Andretti driver to fail to make the Fast Six.
DCR's second and third cars qualified 16th and 18th as Pietro Fittipaldi edged out the returning Santino Ferrucci.
Provisional starting grid
|1||Will Power||Team Penske||Dallara/Chevrolet||57.3467s||-|
|2||Josef Newgarden||Team Penske||Dallara/Chevrolet||57.6877s||0.3410s|
|3||Alexander Rossi||Andretti Autosport||Dallara/Honda||57.7361s||0.3894s|
|4||Sebastien Bourdais||Dale Coyne Racing||Dallara/Honda||57.8881s||0.5414s|
|5||Ryan Hunter-Reay||Andretti Autosport||Dallara/Honda||57.9699s||0.6232s|
|6||Zach Veach||Andretti Autosport||Dallara/Honda||58.1057s||0.7590s|
|7||James Hinchcliffe||Schmidt Peterson Motorsports||Dallara/Honda||57.6429s||-|
|8||Ed Jones||Chip Ganassi Racing||Dallara/Honda||57.6499s||-|
|9||Marco Andretti||Andretti Herta||Dallara/Honda||57.7277s||-|
|10||Graham Rahal||Rahal Letterman Lanigan||Dallara/Honda||57.7772s||-|
|11||Scott Dixon||Chip Ganassi Racing||Dallara/Honda||57.8554s||-|
|12||Jordan King||Ed Carpenter Racing||Dallara/Chevrolet||57.9010s||-|
|13||Jack Harvey||Meyer Shank Racing||Dallara/Honda||57.9620s||-|
|14||Carlos Munoz||Schmidt Peterson Motorsports||Dallara/Honda||57.6748s||-|
|16||Pietro Fittipaldi||Dale Coyne Racing||Dallara/Honda||57.7321s||-|
|17||Spencer Pigot||Ed Carpenter Racing||Dallara/Chevrolet||57.9939s||-|
|18||Santino Ferrucci||Dale Coyne Racing||Dallara/Honda||57.7735s||-|
|19||Matheus Leist||AJ Foyt Enterprises||Dallara/Chevrolet||58.0036s||-|
|20||Takuma Sato||Rahal Letterman Lanigan||Dallara/Honda||57.7848s||-|
|21||Gabby Chaves||Harding Racing||Dallara/Chevrolet||58.1635s||-|
|22||Simon Pagenaud||Team Penske||Dallara/Chevrolet||58.0983s||-|
|23||Alfonso Celis||Juncos Racing||Dallara/Chevrolet||58.2735s||-|
|24||Tony Kanaan||AJ Foyt Enterprises||Dallara/Chevrolet||58.2531s||-|