"Production Sharing Contract (PSC) for KG-D6 block did not provide for marketing margin component. The contractor (RIL), however, has been charging marketing margin based on the energy equivalent of gas supplied ie USD 0.135 per mmBtu," the Comptroller and Auditor General (CAG) said.
The marketing margin is over and above the government approved natural gas sale price.
In a report tabled in Parliament today, CAG said the Oil Ministry had in March 2009 stated that government had not fixed or approved the quantum of marketing margin till date for sale of natural gas by any company.
Thereafter, the ministry in May 2010 fixed marketing margin of Rs 200 per thousand cubic meters (mscm).
"Marketing margin for GAIL was fixed in Indian rupee whereas contractor (RIL) was charging this in terms of US dollar," it said.
Charging of marketing margin for KG-D6 gas in US dollar instead of Indian rupee for a commodity produced, marketed and consumed domestically "is incongruous with Indian market," CAG said, adding that exchange fluctuations meant that the margin which was Rs 244.31 per mscm in 2010-11 increased to Rs 325.51 per mscm in 2013-14.
Ministry of Chemical and Fertilizer estimates that charging marketing margin of USD 0.135 per mmBtu for KG-D6 gas would lead to additional subsidy outgo of Rs 125 crore a year.
"Additional impact of charging of marketing margin by contractor...On 15 million standard cubic meters per day of KG-D6 gas (supplied to fertilizer units on an average) in excess of marketing margin allowed to GAIL, for the period from May 2009 to March 2014 works out to Rs 201.40 crore," CAG said.
The Department of Fertilizers in January 2014 stated that in the absence of any policy of the Oil Ministry, it has not considered marketing margin paid to RIL in the determination of cost of production and reimbursement of the urea units so far.
"Subsidy claims on account of marketing margin on KG-D6 gas was kept pending from 2009-10 ie since beginning of supplies by contractor," CAG said.
There was a need to regulate marketing margin especially for natural gas supplies to sectors where government has to bear subsidy burden, it said.
"Ministry of Petroleum and Natural Gas should ensure that same methodology ie charging marketing margin in Indian rupee, is adopted for supply of natural gas from domestic source for use in sectors where government bears subsidy burden," it said.