a Oil and Natural Gas Corporation 3 See also Oil and Natural Gas Corporation ONGC Oil and Natural Gas Corporation Oil and Natural Gas Corporation e a 4 References 3 See also a d English a c 5 External links b http://en.wikipedia.org/wiki/Oil_and_Natural_Gas_Corporation 4 References 3 See also 4 References b Oil and Natural Gas Corporation Oil and Natural Gas Corporation a Oil and Natural Gas Corporation d Oil and Natural Gas Corporation English 5 External links e en.wikipedia.org/wiki/Oil_and_Natural_Gas_Corporation d 1 ONGC Videsh http://en.wikipedia.org/wiki/Oil_and_Natural_Gas_Corporation Oil and Natural Gas Corporation 3 See also English c b e en.wikipedia.org/wiki/Oil_and_Natural_Gas_Corporation English en Oil and Natural Gas Corporation a 2 International rankings Oil and Natural Gas Corporation e ONGC ONGC ONGC c Oil and Natural Gas Corporation, 2 International rankings ONGC hide b a hide hide 2 International rankings English hide en:Oil and Natural Gas Corporation Oil and Natural Gas Corporation b Oil and Natural Gas Corporation Limited 1 ONGC Videsh 1 ONGC Videsh Oil and Natural Gas Corporation (ONGC) Oil and Natural Gas Corporation 5 External links 4 References English en Oil and Natural Gas Corporation Oil and Natural Gas Corporation "Oil and Natural Gas Corporation" ONGC (India) Oil and Natural Gas Corp. (ONGC) Oil and Natural Gas Corporation b b ONGC Videsh d a 1 ONGC Videsh hide hide Oil and Natural Gas Corporation Oil and Natural Gas Corporation hide c 2 International rankings http://en.wikipedia.org/wiki/Oil_and_Natural_Gas_Corporation b ONGC Oil and Natural Gas Corporation en.wikipedia.org/wiki/Oil_and_Natural_Gas_Corporation en.wikipedia.org/wiki/Oil_and_Natural_Gas_Corporation 5 External links India’s Oil and Natural Gas Corporation hide Fortune Global 500 company Oil and Natural Gas Company Limited Oil and Natural Gas Corp. (ONGC)