Japan Petroleum Exploration Co., Ltd.

Mining ・ 1662

Figures below come from this company's annual securities report (有価証券報告書) filed with Japan's Financial Services Agency. Filing a false statement is a criminal offence, which is what makes them worth building on.

Average annual pay
¥10.6m
filing entity, incl. bonuses
vs peers
+¥4.21m
same industry & average age
Average age
39.8 yrs
Average tenure
14.1 yrs
Employees
1,670
consolidated
Market cap
¥555.3bn
J-Quants, ~12-week delay
Working here from 22 to 60est. ¥364m grossindustry norm ¥239m ・ ¥261m after tax and social insurance (72%)
What is left after tax and social insurance? →How much did the 2026 changes move it? →

Corporate Number 3010001108219 (National Tax Agency)

Workforce disclosure

Japan requires listed companies to disclose these three ratios. They are useful but easy to misread — the notes matter.

ItemValue What it does not tell you
Female managers8.1%definition of 'manager' varies by company
Male parental leave84.2%can exceed 100%; says nothing about duration
Gender pay gap (all workers)69.6%women's pay as % of men's; not equal-work comparison
Workplace score (beta)61.2deviation vs all listed, 50 = median
Investment score (beta)54.6deviation vs all listed, 50 = median

Pay history

From past annual securities reports. Reorganisations move this figure even when pay itself does not — the average covers the filing entity only.

Fiscal year endAverage annual pay
2024-03-31¥9.6m
2025-03-31¥10.3m
2026-03-31¥10.6m

Similar companies

Same sector, closest by average pay. A starting point for comparison — not a ranking. Pay differences here are driven as much by average age and by how much of the group sits inside the filing entity as by how well a company pays.

Company Average payAvg ageCode
Sumiseki Holdings, Inc.¥6.1m48.11514
K&O Energy Group Inc.¥7.5m42.61663
Nittetsu Mining CO.,Ltd.¥8.1m42.71515
INPEX CORPORATION¥13.2m39.21605

Limitations

Source: annual securities report (EDINET, Financial Services Agency of Japan); market data from J-Quants (JPX Market Innovation & Research), ~12-week delay. Compiled independently by Corpus; not provided or endorsed by any government agency. Full detail in Japanese: 石油資源開発株式会社.