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Revision of earnings forecasts5019Idemitsu Kosan Co.,Ltd.Energy Resources

Notice Regarding Differences Between Forecast and Actual Results

Full-year actual results for the fiscal year ending March 2026 exceeded the consolidated earnings forecasts announced on 11 November 2025. Revenue increased by 2.0%, operating income by 212.1%, and net income attributable to owners of the parent by 129.2%.

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144203
¥ million
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Revised forecast

Fiscal year ending March 2026 · Consolidated cumulative period (1 April 2025 to 31 March 2026)Previous forecast published 11 November 2025
Net Sales7,950,000→8,105,891million
+2.0%
Operating profit68,000→212,203million
+212.1%
Ordinary income85,000→229,646million
+170.2%
Profit attributable to owners of the parent75,000→171,914million
+129.2%
Net income per share61.24→140.38
+129.2%

The bar length represents the relative magnitude of change, based on the item that changed the most in this document. The percentage change shown by the dotted line is calculated from the two reported figures because the company did not provide the rate.

Reason for the revision

The main factor was the positive time lag in the fuel oil segment resulting from the sharp rise in crude oil prices amid worsening conditions in the Middle East. Operating income increased by ¥144.2 billion and net income attributable to owners of the parent increased by ¥96.9 billion.

Previous-period resultsRevenue: ¥9,190,225 million; operating income: ¥162,185 million; ordinary income: ¥214,764 million; net income attributable to owners of the parent: ¥104,055 million; net income per share: ¥77.83 (fiscal year ended March 2025)
Consolidated / non-consolidatedConsolidated
Revised forecast
ItemDetails
Net Sales¥7,950,000 million → ¥8,105,891 million(2.0%)
Operating profit¥68,000 million → ¥212,203 million(212.1%)
Ordinary income¥85,000 million → ¥229,646 million(170.2%)
Profit attributable to owners of the parent¥75,000 million → ¥171,914 million(129.2%)
Net income per share¥61.24 → ¥140.38
Fiscal Period CoveredFiscal year ending March 2026
Period CoveredConsolidated cumulative period (1 April 2025 to 31 March 2026)
Publication date of previous forecast11 November 2025
Previous-period resultsRevenue: ¥9,190,225 million; operating income: ¥162,185 million; ordinary income: ¥214,764 million; net income attributable to owners of the parent: ¥104,055 million; net income per share: ¥77.83 (fiscal year ended March 2025)
Reason for the revisionThe main factor was the positive time lag in the fuel oil segment resulting from the sharp rise in crude oil prices amid worsening conditions in the Middle East. Operating income increased by ¥144.2 billion and net income attributable to owners of the parent increased by ¥96.9 billion.
Consolidated / non-consolidatedConsolidated
Items this document does not state (2)
Details and amount of extraordinary lossDividend forecast revision

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

The main factor was a positive time lag in the fuel oil segment resulting from a sharp rise in crude oil prices amid worsening conditions in the Middle East.

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Notice Regarding Differences Between Forecast and Actual Results | Idemitsu Kosan Co.,Ltd. (5019) timely disclosure | Komori