The House of Representatives Ad hoc committee has summoned the acting Chairman of Economic and Financial Crimes Commission, Ibrahim Magu, to appear before it on Tuesday over alleged $17bn stolen undeclared oil proceed.
Chairman of the committee, Abdulrazak Namdas summoned Magu on Monday in Abuja at the opening of the investigation.
The committee also invited the Group Managing Director of the Nigerian National Petroleum Corporation, Dr Maikanti Baru; and Central Bank of Nigeria governor, Mr Godwin Emefiele.
Others were Director-General of Nigerian Maritime Administration and Safety Agency, Mr Dakuku Peterside; and Accountant General of the Federation, Mr Ahmed Idris.
He warned that the House would not hesitate to invoke its constitutional powers to compel the invited chief executives to appear if they default.
He therefore turned back directors and other management staff who were sent as representatives of their respective organisations.
Namdas said reports had it that over 57 million barrels of crude oil were illegally exported and sold in the U.S. between January 2011 and December 2014.