The litigation clerk said the NNPCL was yet to be served with the said originating processes sought to be amended.
Mr Rurum said the heads of all the invited agencies must appear in person on September 11.
Ahmed Farouk, chief executive of NMDPRA, led the staff of the agency on a stock monitoring exercise within depots in Lagos.
Most private outlets had products but sold above the regulated price of between N180 and N190.
As of Thursday evening, NNPC had up to 1.79 billion litres of petrol on the ground, continuing 24-hour loading.