What will be maximum stay for H1B Visa Holder who obtained L1B to H1B COS in the 2014 H1B Lottery?

Entered USA in July 2010 on L1B and obtained L1B to H1B COS in 2014 Lottery. The petition got approved till July 2016 (6years of combine L1 and H1 stay). Can the H1B petition be extended beyond 2016 without applying for Green Card?