In the past losses from energy subsidies (both fuel and power), which increase debt in state banks and are then funded with Central Bank credit has led to high inflation and balance of payments crises.
It also reduces credit available for the private sector and results in lower economic growth.
The public power utility, Ceylon Electricity Board, alone had not paid 49 billion rupees to the CPC.
Others in arrears on payment for fuel include the controversial state-owned Mihin Lanka budget airline that has been running at a loss, the SLTB state bus service, Road Development Authority, and the 'Maga Neguma' rural road development project.
The CPC had made a profit of 5.9 billion rupees up to May 2009 but profits fell later mainly owing to furnace oil imported at high prices being sold at subsidised rates, Thoradeniya said.
The CPC has long faced delayed payments for fuel by state organisations and has struggled to stay profitable, having to sell fuel at subsidised prices.