"Ministry is not considering any proposal (for merger). It is an idea which was reportedly mooted by a Director of a state-owned company and like all ideas have to be debated, we are debating it," he said here.
His ministry has 13 PSUs ranging from upstream oil producers like ONGC and Oil India to downstream oil refining and fuel marketing firms IOC, BPCL and HPCL to gas transporter GAIL India Ltd to engineering firm Engineers India Ltd.
Pradhan said it was just an idea and he is willing to look at an viable proposition. "I am open at looking at options... Thats all I have said," he said.
Top eight listed state-owned oil and gas companies have a combined market capitilization of about USD 80 billion, making it ninth largest globally.
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Pradhan also said he is pitching with the finance ministry to cut cess on domestically produced crude oil to provide life to companies like Oil and Natural Gas Corp (ONGC).
In the Budget for 2016-17, Finance Minister Arun Jaitley had moved from a fixed Rs 4,500 per ton cess on domestically produced crude oil to a percentage of oil prices or ad valorem rate of 20 per cent.
At crude oil price of USD 45 per barrel, the two breakeven and if rates go up, oil companies will end up paying more, ONGC Chairman and Managing Director Dinesh K Sarraf said.