Also scoring in double figures for Tulsa was Robert Vaden with 17 and Curtis Sumpter with 16.
The 66ers tallied 25 assists as a team, led by six dishes from both Dyson and Vaden.
Defensively, Tulsa forced 13 Los Angeles turnovers and created six steals, led by two thefts from Dyson.
The D-Fenders, who currently stand in second place in the Western Conference, were led in scoring by Gerald Green with a game-high 31 points. Otis George paced the team in rebounds with 13 boards.
The 66ers return to the court this Friday and Saturday, Feb. 10 and 11, with back-to-back road games against the Bakersfield Jam. Both contests are scheduled to tip at 9 p.m. CT.