In brief
S‑Oil Corp. announced a 2,171.3% jump in third‑quarter net profit to 1.43 trillion won (US$1.1 billion), driven by higher refining and lubricants margins. Operating profit rose 513.7% to 1.4 trillion won and revenue climbed 42.2% to 11.96 trillion won. The company expects margins and supply tightness to support a strong fourth quarter.
On Nov. 2, S‑Oil Corp., South Korea’s third‑largest refinery by sales, disclosed that its third‑quarter net profit surged 2,171.3 percent year‑on‑year to 1.43 trillion won (US$1.1 billion), according to a regulatory filing reported by Yonhap.
Financial performance
In the July‑September period, the company said operating profit vaulted 513.7 percent on‑year to 1.4 trillion won, while revenue increased 42.2 percent to 11.96 trillion won, all figures cited by Yonhap’s first report.
The second Yonhap account identifies the drivers of the earnings surge as a combination of high oil prices and improved margins in both refining and lubricants businesses, attributing the rise to “a combination of high oil prices, improved export refining margins and improved profitability in the lubricants business pushed up the quarterly results.”
"A combination of high oil prices, improved export refining margins and improved profitability in the lubricants business pushed up the quarterly results," the company said.
Both reports note that the operating profit exceeded the average analyst estimate by 6.2 percent, indicating a stronger-than‑expected margin profile for the quarter.
S‑Oil also highlighted a turnaround for the first nine months of 2026, reporting a net profit of 2.67 trillion won versus a net loss of 48.13 billion won in the same period a year earlier, and an operating profit of 3.6 trillion won compared with an operating loss of 136.29 billion won, alongside sales rising 26.7 percent to 32.25 trillion won.
Strategic outlook
The company expects refining margins to remain high into the fourth quarter, citing low global inventories and strong seasonal demand for heating oil. It also projects that lubricants supply will stay tight because of prolonged production disruptions and logistical constraints, which could sustain higher margins for the remainder of the year.
Additionally, S‑Oil is undergoing trial operations of its Shaheen petrochemical complex, a 9.26 trillion‑won project adjacent to its existing refinery in Ulsan, which the company expects to begin producing key petrochemicals such as ethylene, propylene and butadiene in early 2027.
The firm is majority‑owned by Saudi Arabia’s state‑owned Aramco, which holds a 63.4 percent stake, a detail mentioned in both Yonhap reports. While the news from Yonhap highlights record gains, analysts had been watching the company’s margins closely amid global supply disruptions and shifts in regional oil markets.
With its strong performance and anticipated continued high margins, S‑Oil’s latest quarterly results represent a significant reversal from the previous year’s losses and may signal a durable competitive advantage in the region’s refining sector.
