Z Energy, BP and Waitomo Group have challenged the Commerce Commission's claims that a lack of competition in the fuel sector is delivering participants excess returns.
Z Energy, the country's biggest fuel retailer, says it has discovered a number of inaccuracies in the commission's draft findings on profitability, including a misrepresentation of Z's 2016-2018 rate of return as about 22 per cent, about double Z's independently reviewed calculations of about 11 per cent, chief executive Mike Bennetts said.
The study had also used the wrong number of shares the company had on issue, inflating its market value by $181.5m, had ignored $158m of goodwill booked at the time Z bought the Caltex fuel distribution business from Chevron NZ, used the wrong concept for assessing depreciation, and a deferred tax liability had been accounted for in a way unsupported by the relevant literature, according to a report Z commissioned from Victoria-based consultancy Incenta.
Setting aside the "material errors" in various parts of the analysis, Z said it has concerns about the "light touch" approach the commission had taken and the messages that might send to interested parties and the public.
"Multiple short-hand approaches do not verify a concrete overall view - i.e. that firms are earning persistently high profits, justifying action," the company said in its 39-page submission.