Origin Energy will unveil its earnings for the year to June 30 on Thursday after weathering a tough few months peppered with internal strife and defined by rollicking global energy markets.
The results will be overshadowed by July's major data breach which exposed the personal information of almost one million of the energy giant's current and former customers.
It took three weeks for Origin to spring into action after it waved away initial warnings its cybersecurity might be compromised.
Credit card and bank information, addresses, names and phone numbers were all potentially on the menu for hackers, but it wasn't until stories about the breach began to appear in the media that the company responded.
Separately that month, Origin also had to issue refunds totalling $270,000 after the consumer watchdog pulled it up for allegedly misdirecting thousands of customers onto deceptively expensive energy plans.
But the back-to-back debacles had no impact on the company's share price at the time, which had tanked about eight per cent in the days before the incidents unfolded.
Origin was producing slightly less energy in the 2025/26 financial year because of smaller takings from three of its onshore gas fields in Queensland, but was well inside forecasts, the energy retailer reported in July.
Bizarrely, low oil prices were why revenues from those facilities were on track to land a whopping 20 per cent below what they were the year prior.
Despite turmoil in the Middle East and the cost of oil skyrocketing, long-term contracts meant Origin's gas was still jostling for buyers against some of the cheapest oil seen in nearly five years - at prices from late 2025.
Its business was still operating as though oil cost $US72 ($A102) a barrel on average, when in reality it has at times spiked to about $US120 ($A170) since missiles began firing over the Gulf on February 28.
Origin expected windfalls to arrive courtesy of the war in Iran over the coming financial year, it said in July.
That may compensate from another production slump the energy titan has predicted for the 12 months to June 30, 2027, driven by smaller gas hauls across eastern Australia.
An unusually hot start to winter also troubled Origin's electricity business, which collected 16 per cent less revenue in the three months to June 30 than it did over the same period in 2025.
In 2024/25, Origin delivered a bottom line net profit of $1.5 billion, up six per cent on the prior year.
