The Barons finished with just one penalty Saturday, a roughing penalty against Teemu Hartikainen in the second period.
“It was kind of weird,” Nelson said. “Usually, we're killing off two or three in the first 10 minutes. But our guys did a pretty good job of being disciplined.
Oklahoma City will complete its first set of three games in three nights with a road game tonight at Milwaukee.
It will be the first meeting of the season between the two teams. The Barons split last year's six-game series with the Admirals, who enter Sunday's game 7-2-0-1.
“Milwaukee always has a good team, and they got a new coach,” Nelson said. “They're going to be good. It's going to be a tough game there. The positive side is last year we did pretty well against Milwaukee…But we're going to have to be ready. It's going to be a very stingy team we're playing.”