Tamil Nadu
ONGC seeks partners for India's marginal oil and gas fields
Production
ONGC awards 49 marginal oil & gas fields
Production
Tamil Nadu says no to exploration in India's Cauvery Delta
Exploration
Adnoc wing to supply floater for Indian LNG terminal
LNG
ONGC on hunt in Cauvery
Weekly
ONGC in Cauvery drive
Online