Oxford, who were bottom of the table a fortnight ago, made it five league games without defeat but were left frustrated by a 0-0 draw against Stevenage at the Kassam Stadium.
Michael Appleton's team dominated possession but could not find a way through a stubborn Boro defence.
Top scorer Danny Hylton spurned three great opportunities to find the net.
Buoyed by their first league win of the season against Accrington in midweek, Oxford took the game to Stevenage from the off.
Hylton had a close-range shot...