New Delhi: India's largest oil producer Oil and Natural Gas Corporation (ONGC) on August 14 said it was back to doing normal business and all its workers returned to their jobs after a day's non-co-operation agitation against August 11 helicopter accident.

"Today (August 14) we observed ONGC Day. A function was held at our Mumbai office where the death of 27 in the helicopter crash was mourned. After that workers were back at work," a senior company official said.

The official, who did not wish to be identified, said operations in the Mumbai offshore region, which produces 50 per cent of country's total crude oil, were normal.

"Yesterday (August 13), we saw some employees staging a sit-in dharna at corporate office in Mumbai but today even that is not happening. All workers are doing their duties," he claimed.

ONGC executive director and Mumbai high asset manager Kharak Singh said from Mumbai said "we are getting co-operation from all employees in producing oil and running infrastructure. No untoward incident has been reported."

Mumbai offshore fields, comprising Mumbai High, Heera and Neelam fields, would produce over 290,000 barrels of oil on August 14 as against about 260,000 barrels on August 13.

"Yesterday we lost 12-15 hours of production on some wells because of delays in mooring and de- mooring oil tankers. It took more time due to turbulent waters during monsoon, so we had to shut a few wells.

About 25-30,000 tonnes of production was lost because of delays in mooring oil tanker (that transport crude from oil wells to shore) and not due to any agitation by employee. Employees were working yesterday and are on the job today," he said. PTI