Just seven thousandths separated the Mercedes duo.
Toyota has claimed pole for tomorrow's WEC race at the COTA.
Oak Racing and SRT Viper take pole honors for the TUDOR United SportsCar race at COTA.
Lewis Hamilton took pole by just seven thousandths of a second from team-mate Nico Rosberg.
Vijay Mallya: "Our starting positions tomorrow mean we will need to work a bit harder to score the points we need."
Daniel Ricciardo: "If the start goes okay then it’s about trying to be smart and doing something with the strategy. "
The Ohio-based squad got up to speed quickly in the No. 60 Ford Ecoboost Riley.
Second row starting spot on the penultimate round of the 2014 championship.
The American teams had a decent practice today.
Jean-Eric Vergne: The feeling was good and I’m confident that we have a competitive car this weekend.