Also, the partners will have their stake in the field trimmed as state-owned SOCAR raises its stake.
OVL's share of the total bonus payments would be about USD 111 million and its stake will come down to 2.31 per cent from current 2.71 per cent, the company said in a statement.
The Azeri-Chirag-Deepwater Gunashli (ACG) complex in the Caspian Sea produces most of Azerbaijan's crude oil.
Oil production from the field has been dropping for some years now. It fell 11 per cent to 585,000 barrels per day in the first half of 2017 despite the startup of a new platform in 2014 at a cost of USD 6 billion.
More From This Section
While the extension of the production sharing contract, which was to expire in 2024, was necessary to ensure continued investment, SOCAR will see its stake in ACG rise from 11.6 per cent to 25 per cent.
Norway's Statoil will have 7.27 per cent stake (8.6 per cent previously), ExxonMobil 6.79 per cent (8 per cent), Turkey's TPAO 5.73 per cent (6.8 per cent) and Japan's ITOCHU 3.65 per cent (4.3 per cent).
"The agreement is subject to ratification by the Parliament (Milli Majlis) of the Republic of Azerbaijan," the statement said.
"OVL's share of the total bonus payments is about USD 111 million," it said.
The ACG oil fields are located in the Caspian Sea, about 100 kilometres east of Baku, the capital of Azerbaijan.
The fields currently produce 585,000 barrels per day of oil, which is transported through the Baku-Tbilisi-Ceyhan (BTC) pipeline to Ceyhan on the Mediterranean coast of Turkey, from where it is shipped to customers.
"There is substantial amount of remaining oil and gas in the field and the PSA extension will benefit Azerbaijan and partners through sustained long term production," it said.
OVL, the overseas arm of state-owned Oil and Natural Gas Corp (ONGC), had acquired 2.7213 per cent interest in the ACG and 2.36 per cent in 1,768-km BTC pipeline from Hess Corporation on March 28, 2013 for USD 1 billion.
The BP-operated field at that time was producing around 700,000 barrels a day (35 million tonnes per annum) of crude oil. OVL's share of output was over 19,000 barrels a day or a little less than one million tonnes per annum.