Treliving joined the organization in April 2014 and is entering his sixth season as general manager.
"Over the past five years, Brad has done an excellent job putting a team together on and off the ice," Flames president and CEO John Bean said. "Continuity is important in this role. Brad has earned the trust and respect of our ownership group and our fans. We look forward to continuing our work together as we strive for our ultimate goal; another Stanley Cup championship for the city of Calgary."
The 50-year-old Treliving has maintained a competitive roster throughout his tenure in Calgary and is responsible for many key moves.
Treliving has also signed core players Johnny Gaudreau, Sean Monahan, Mark Giordano, and T.J. Brodie to cost-effective contracts. And in September, he inked Tkachuk, who was a high-profile restricted free agent, to a three-year, $21-million deal.
The Flames notched the second-highest point total (107) in franchise history and finished atop the Western Conference in 2018-19.