New Zealand petrol retailer Z Energy Ltd reported a 31 percent fall in its annual profit on Thursday, on the back of lower revenue and higher costs. The company reported a profit of NZ$95 million ($82.4 million) for the 12 months to March 31 compared with NZ$137 million the year before. It is the company's first reported profit as a listed entity after an IPO last year. Z Energy said earnings before interest, tax, depreciation, amortisation, and fair value movements (EBITDAF) were NZ$219 million from NZ$196 million last year. Last month it reaffirmed guidance of EBITDAF at NZ$205 million to NZ$215 million. It said it expected EBITDAF of between NZ$220 million to NZ$240 million for the coming year. It declared a final dividend of 14.3 cents a share.