Revenue in the review period increased to 567.9 million levs from 367.7 million levs a year earlier, the company said in an interim financial statement on Monday.
Meanwhile, operating expenses rose to 557.2 million levs from 365.2 million levs as cost of goods sold jumped to 508.4 million levs from 318.1 million levs.
The company said that it continues to follow its strategy outlined in 2014 to restructure the activities within the group. Overall, the company aims to focus on its main business of fuel trading.
Petrol operates over 300 filling stations in Bulgaria.
As at 1453 CET on Wednesday, shares in Petrol traded flat at 0.25 levs on the Bulgarian Stock Exchange.
(1 euro = 1.95583 levs)