Monfort also said he plans to increase the team's payroll and go after a starting pitcher and a big bat this offseason.
"The plan is to keep them. Next year, yes. And my plan is to always keep them," Monfort said to the Denver Post. "Is that the smartest thing in the world to do? I don't know. But for our fans I think it's the best thing to do."
"I love those two guys," Monfort said. "And if they ever get on a tear ... In Tampa Bay, every once in a while, Evan Longoria just carries them and we have two guys who can carry a team."
Tulowitzki hit .312 with 25 home runs and 81 RBI, and Gonzalez had a .302 batting average to go with 26 home runs and 70 RBI in an injury-plagued season. The Rockies finished 74-88 in the first season under manager Walt Weiss. They haven't reached the playoffs since 2009.