WATCH: All Oilers vs. Ducks highlights
Gibson bounced back after his shortest start of the season Saturday when he allowed four goals on 18 shots and was pulled with 3:03 left in the second period of a 5-0 loss at the Nashville Predators. He was credited with an assist on Fowler's goal.
"He was awesome. He gave us a chance to win the game and kept us in it," Fowler said. "Without him, they probably get a couple more. The only one that did go in was off my stick. I feel bad about that, but he was excellent tonight. Best player by far."
Leon Draisaitl scored and Cam Talbot made 23 saves for the Oilers (9-7-1), who have lost four in a row.
"I thought tonight, in comparison to a few others, we had more aggressive plays around the net and some open nets we missed," Oilers coach Todd McLellan said. "A lot of shots from the blue line that were blocked or missed the net, which was frustrating from an offensive perspective."
Ritchie scored his fourth of the season 7:13 into the game when he took a backhand feed from Ryan Getzlaf and went top shelf over Talbot to give the Ducks a 1-0 lead.
Fowler made it 2-0 with a 4-on-4 goal 2:23 into the second period.