Oil and Natural Gas Corp. (ONGC) plans to invest over $5b to produce 25 million standard cubic meters per day (mmscmd) of gas from its eastern offshore Krishna Godavari fields by 2013. The state-run firm submitted to the regulator Director General of Hydrocarbons an appraisal program of the discoveries it had made in KG offshore basin, putting the in-place reserves at 6.37 Trillion cubic feet (Tcf), industry sources said. Besides natural gas, ONGC also plans to produce 8,000 barrels of oil per day from the fields. The reserve estimates and production plan in ONGC's appraisal program, however, do not include its ultra-deepwater UD-1 discovery in KG-DWN-98/2 block adjacent to Reliance Industries' prolific gas discovery block KG-D6.