Jamie Benn had a goal and an assist as the Dallas Stars edged Calgary 2-1 on Friday night, the Flames' seventh straight loss.
Trevor Daley also scored for the Stars (15-10-4), while Kari Lehtonen, starting his fifth game in a row, made 21 saves.
After being held without a point Wednesday in the Stars' 2-0 win over Vancouver, Tyler Seguin had an assist to take over the NHL scoring lead with 39 points (23 goals, 16 assists). He is one point up on Evgeni Malkin and Jakub Voracek.
Mark Giordano scored for Calgary (17-15-2), which has lost seven consecutive games for the first time since its team-record 11-game skid in 1985-86. Jonas Hiller stopped 19 shots.