Oxford United were involved in their sixth 0-0 draw of the League Two season on Tuesday night.
The U's were held at Exeter City in a game that saw both goalkeepers in good form.
Exeter stopper Artur Krysiak was the busier of the two, keeping out efforts from Sean Rigg, David Hunt, Josh Ruffles, Johnny Mullins, James Constable and Nicky Wroe.
Meanwhile, opposite number Ryan Clarke was called into action to deny Liam Sercombe and to parry a late header from Tom Nicholls.
The result leaves Oxford and Exeter fifth and 15th respectively in the table.