As you want address of ONGC Orissa, the office of ONGC is still not open at this time. ONGC is planed for to establish an ONGC office at Orissa.

When ONGC Orissa is open then I’ll provide you address. ONGC's chairman-cum-managing director D.K. Saraf was said: With the opening of the Odisha office there will be more focus on the exploration activities.

The Union minister is said that The Central government aims to invest around Rs 1 lakh crore in the hydro-carbon sector in the next five years. Under the plan, the liquid and natural gas hub of eastern India will come up soon in Odisha."

Functions of ONGC:

HSE
Business Development
Business Partners
Material Management
Human Resource
Rajbhasha
Right to Information (RTI)
Vigilance
Institute of Drilling Technology

Address:

ONGC
Basement, Old Secretariat Building,
Tel Bhawan, Dehradun
Telephone
0135-2793959
Fax
0135-2793415