The result follows record production for the company and improving global oil prices.
The company recorded a full year production of 30.31 million barrels of oil equivalent (mmboe) for 2017 after a fourth quarter total production of 7.59 mmboe.
Additionally, a 5 percent increase in global prices saw the company surpass estimates.
Oil Search managing director, Peter Botten, said the company finished 2017 strongly, with full year production at the upper end of their guidance range and an all-time record for the company.