Andretti Autosport will field four cars in this year's IndyCar Series after forming a new partnership with the single-car Bryan Herta Autosport team.
Having previously only confirmed three full-time entries for Ryan Hunter-Reay, Marco Andretti and Carlos Munoz for 2016, the Andretti squad will now also run the No. 98 BHA entry out of its Indianapolis base this year.
Herta himself will remain involved as team strategist and driver coach for the No. 98 car, with the team's crew being also being retained.
However, the announcement made no mention of 2015 BHA driver Gabby Chaves, whose IndyCar future appears to have been thrown into serious doubt.
"Bryan is a long-time friend and I was happy to watch him build a successful Indy car team,” said Michael Andretti. "Bringing Bryan and his crew into the family is a great opportunity for all parties to build an even stronger organization.
"Having Bryan’s experience is a welcome addition to the team. I’m honored to be able to carry on what he started and look forward to a competitive season.”
BHA's first IndyCar start came in the 2010 Indianapolis 500, and the team sealed its first win in the following year's race with the late Dan Wheldon, before embarking on a full-time campaign in 2012.
2015 marked the team's fourth full season, Chaves finishing 15th in the standings as top rookie with a best finish of ninth place in the second Detroit race.
Herta, who raced for Andretti in IndyCar between 2003 and 2006, added: “I couldn’t be more excited about this new chapter for Bryan Herta Autosport. Michael has been a long time friend, and we certainly know that Andretti Autosport was a big part of my career.
"When the opportunity came together for us to strengthen our organization and merge with one of the most successful teams and names in the sport, it was really a no-brainer.
"I’m especially proud that what we’ve built with all the employees of BHA will remain intact and become part of the fabric of Andretti Autosport.”
The driver for the No. 98 Dallara-Honda will be announced "at a later date."