* ProSieben to pay 170 mln euros for Verivox
* Price could rise by up to 40 mln depending on performance
* Oakley Capital to hold on to minority stake (Adds detail, background)
FRANKFURT, June 26 (Reuters) - German media groupProSiebenSat.1 has agreed to buy 80 percent of Germanenergy price comparison site Verivox from Oakley Capital for 170 million euros ($190 million).
The price tag for Verivox, ProSieben's largest digitalacquisition so far, could rise by up to 40 million eurosdepending on Verivox's operating profit this year, ProSiebensaid on Friday.
Oakley Capital will hold on to a minority stake.
Broadcaster ProSieben is expanding its online mediaofferings and said it wanted to start building a stable ofcomparison portals. It bought telecoms price comparison sitepreis24.de in 2012.
Verivox was founded in 1998 and is Germany's largestindependent consumer portal for energy. It also offers pricecomparisons for telecoms, insurance and finance products.
Verivox says it has helped more than 7.5 million householdsswitch their utility providers, saving them more 1 billioneuros.($1 = 0.8927 euros) (Reporting by Harro Ten Wolde; Editing by Georgina Prodhan)