Greg Sheppard and George Lau, representing O'Neill, moved the stay application before Justice Nicholas Miviri before 4pm today.
O'Neill is asking the court, through his lawyers, to stay the warrant from being executed until an inter parte hearing takes place.
The court has adjourned and a ruling on the urgent application will be made at 5pm.
He filed an application seeking leave for Judicial Review this morning.
More update to come from the Waigani court house.