sentences:  Its oil and gas production reached 8.87 MMT of O+oEG in 2010, up from 0.252 MMT of O+OEG in 2002/03.ONGC holds 100% stake in ONGC Videsh Limited.Hindustan Petroleum Corporation Limited (HPCL) (, ) is an Indian state-owned oil and natural gas company with its headquarters at Mumbai, Maharashtra.