Baku, August 3, AZERTAC bp as operator of the Azeri-Chirag-Deepwater Gunashli (ACG) field has announced that the total oil production since start has reached around 4.1 billion barrels.According to the company, the total production for the first quarter was on average about 434,000 barrels per day (b/d) (about 39 million barrels or 5 million tonnes in total).