Gills stay top - just
Tom Pope was their match-winner, notching in the 40th and 62nd minutes.
Port Vale cut Gillingham's npower League Two lead by two points as they recorded an away victory over fourth-placed Exeter. Gills, 5 points clear at the start of play, could do no better than a goalless draw at Oxford, while Vale managed a 2-0 win.
Tom Pope was their match-winner, notching in the 40th and 62nd minutes.