Justice Mathew Downs said Yates' actions were callous in that he shot Moore three times, disposed off his body in a shallow grave, concealed or disposed off evidence, and lied to the deceased's family about his whereabours.
The judge described Yates' claim that he acted in self defence when he shot Moore as "fiction" as evidence during trial did not support his argument.
Yates was found guilty by a jury after a three-week trial in August.
A large number of Moore's family and friends, including his mother and younger brother, filled up the public gallery during the sentencing.
The Crown applied for a minimum non parole of no less than 17 years while Yates' lawyer Nick Leader argued the court could arrive at a sentence lower than that period.