Feel free I will get some information about Oil and Natural Gas Corporation and will also get the address of company.

The Oil and Natural Gas Corporation is an Indian multinational oil and gas company which produces around 77% of India's crude oil (equivalent to around 30% of the country's total demand) and around 62% of its natural gas.

Products
Crude Oil
Gas
LPG
Naptha
C2-C3
SKO
Others
Adjustments

Subsidiaries
Presence of ONGC Videsh Limited (OVL) in Latin America;
Brazil (Block BC-10, BM-SEAL-4, BM-BAR-1, BM-ES-42, BM-S-73 & S-74)
Colombia (Block LLA-69, RC-8, RC-9, RC-10, SSJN-7 & CPO-5)
Cuba (Block N-25, N-26, N-27, N-28, N-29 N-34, N-35 & N-36 Block)
Venezuela (Block San Cristobal, Block Carabobo-1)

Presence of ONGC Videsh Limited (OVL) in CIS & Far-East;
Vietnam (Block 06.1, 127, 128)
Myanmar (Block A-1, A-3, AD-2, AD-3 & AD-9, Pipeline Project- PipeCo-1, PipeCo-2)
Russia (Block Sakhalin-I, 69, 70–1, 70–2, 70–3, 77, 80, 85–1, 85–2 and 86)(15% shares in csjc vancourneft company of vancour)
Kazakhstan (Satpayev Exploration Block)

Presence of ONGC Videsh Limited (OVL) in Africa;
Libya (Block NC-189, 81–1, Contract Area 43)
Nigeria (Block OPL 279, OPL 285, Block-2)
Sudan & South Sudan (GNOP/GNPOC/GPOC- 1, 2 & 4, Block 5A, Pipeline- Khartoum-Port Project)
Mozambique (Rovuma Area 1 Offshore)

Presence of ONGC Videsh Limited (OVL) in Middle East;
Iraq (Exploration Block-8)
Syria (Al Furat (4 PSA), Block-XXIV)
"Mangalore Refinery and Petrochemicals Limited":


Address:-
Oil and Natural Gas Corporation
ONGC, Pandit Deendayal Upadhyaya Urja Bhavan,
5 Nelson Mandela Marg, Vasant Kunj-110070

Phone:-
26750999/26129000