Oracle's Lifetime Support policy has three phases: Premier Support, Extended Support, and Sustaining Support. For details about coverage during each phase, see:
You can purchase a support plan for your licensed products to obtain Premier Support. There is an additional fee for Extended Support.
Premier Support for Database 12.1 runs to July 31, 2018. Extended Support for Database 12.1 runs to July 31, 2021. The Extended Support fee for Oracle Database 12c 12.1 has been waived to July 31, 2019. See: