Forward Kevin Durant led the team with 42 points in their 101-98 win over divisional rivals the Utah Jazz.
The head coach told reporters: "It puts everything in perspective. It's hard to win a game and it's very difficult to win on the road.
"We're an aggressive team. We want to get to the line. We attack the basket. Knowing that, we're going to get our chances to get on the line. Our guys did a great job of stepping up and making big free throws.
"On every possession, battle, fight, claw and do everything you can to stop your man from scoring. It's the first game and obviously we have room to improve. We did that pretty well in the second half."
The Thunder play the Minnesota Timberwolves tomorrow.