OIL AND NATURAL GAS CORP. revenue for the last year amounted to 6.43 T INR, the most of which — 5.34 T INR — came from its highest performing source at the moment, Refining and Marketing, the year earlier bringing 5.54 T INR. The greatest contribution to the revenue figure was made by India — last year it brought OIL AND NATURAL GAS CORP. 6.33 T INR, and the year before that — 6.73 T INR.