[5] In 2008, Comley was appointed Deputy Secretary of the Department of Climate Change.
[1] Comley was appointed Secretary of the Department of Resources, Energy and Tourism in February 2013, to commence 11 March that year.
[7] Comley was hired by PricewaterhouseCoopers in April 2014 as a Special Adviser in the Canberra Economics and Policy Team.
[8][9] By September 2014, he had been appointed head of the New South Wales Department of Premier and Cabinet.
[10] In November 2017, the NSW Premier, Hon Gladys Berejiklian MP announced he would be replaced by a new Secretary.