Prices as of 2026/10/30 close
Company comparison · Oil Refiners & Marketers
ENEOS is the largest by revenue at ¥11.8T, followed by Idemitsu (¥8.1T), Cosmo Energy (¥2.7T) and San-Ai Obbli (¥611.6B).
Cosmo Energy has the highest operating margin at 5.4%, 3.4 points above the lowest, San-Ai Obbli (2.0%).
Revenue growth in the latest results: Cosmo Energy −4.4%, ENEOS −4.5%, San-Ai Obbli −6.5%, Idemitsu −11.8%. For next year, ENEOS guides for the fastest operating profit growth (+30.7%).
Cosmo Energy pays the most on average (¥11.5M), ¥3.27M more than San-Ai Obbli (¥8.23M).
Over the past year the shares moved ENEOS +50.1%, Idemitsu +41.4%, Cosmo Energy +22.8%, San-Ai Obbli +21.0%.
Head-to-head wins16 metrics
One win per metric for the company with the best value. Metrics with no better or worse (P/E, average age, employees) are excluded.
ScaleInvestors
ENEOS aheadENEOS 3 : Idemitsu 0 : Cosmo Energy 0 : San-Ai Obbli 0
Revenue: ENEOS ¥11.8T / Idemitsu ¥8.1T / Cosmo Energy ¥2.7T / San-Ai Obbli ¥611.6B
ProfitabilityInvestors
Cosmo Energy aheadENEOS 0 : Idemitsu 0 : Cosmo Energy 3 : San-Ai Obbli 0
Operating margin: ENEOS 4.0% / Idemitsu 2.6% / Cosmo Energy 5.4% / San-Ai Obbli 2.0%
GrowthInvestors
ENEOS aheadENEOS 3 : Idemitsu 1 : Cosmo Energy 1 : San-Ai Obbli 0
Revenue growth (YoY): ENEOS −4.5% / Idemitsu −11.8% / Cosmo Energy −4.4% / San-Ai Obbli −6.5%
Stock & balance sheetInvestors
EvenENEOS 1 : Idemitsu 1 : Cosmo Energy 0 : San-Ai Obbli 0
Share price, 1 year: ENEOS +50.1% / Idemitsu +41.4% / Cosmo Energy +22.8% / San-Ai Obbli +21.0%
Pay & workforceJob seekers
Cosmo Energy aheadENEOS 0 : Idemitsu 1 : Cosmo Energy 2 : San-Ai Obbli 0
Average salary: ENEOS ¥11.4M / Idemitsu ¥9.94M / Cosmo Energy ¥11.5M / San-Ai Obbli ¥8.23M
| Metric | ENEOS | Idemitsu | Cosmo Energy | San-Ai Obbli |
|---|---|---|---|---|
| Revenue | ◎¥11.8T | ¥8.1T | ¥2.7T | ¥611.6B |
| Operating profit | ◎¥466.6B | ¥212.2B | ¥144.8B | ¥12.4B |
| Net income | ◎¥258.7B | ¥171.9B | ¥74.0B | ¥9.2B |
| Metric | ENEOS | Idemitsu | Cosmo Energy | San-Ai Obbli |
|---|---|---|---|---|
| Operating margin | 4.0% | 2.6% | ◎5.4% | 2.0% |
| Net margin | 2.2% | 2.1% | ◎2.8% | 1.5% |
| ROE | — | — | — | 8.0% |
| Revenue per employee | ¥9.7B | ¥1.6B | ◎¥10.6B | ¥1.6B |
| Metric | ENEOS | Idemitsu | Cosmo Energy | San-Ai Obbli |
|---|---|---|---|---|
| Revenue growth (YoY) | −4.5% | −11.8% | ◎−4.4% | −6.5% |
| Operating profit growth (YoY) | ◎+339.8% | +30.8% | +12.9% | +4.6% |
| Revenue CAGRlast 5 years | +9.0% | ◎+12.2% | +3.7% | — |
| Guidance: revenue growthnext FY plan | ◎+9.2% | — | +7.2% | +1.4% |
| Guidance: op. profit growthnext FY plan | ◎+30.7% | −34.0% | −29.6% | −2.9% |
| Metric | ENEOS | Idemitsu | Cosmo Energy | San-Ai Obbli |
|---|---|---|---|---|
| Share price, 1 year | ◎+50.1% | +41.4% | +22.8% | +21.0% |
| Share price, 3 months | +9.4% | ◎+15.8% | +7.0% | +3.7% |
| P/E (trailing)lower = cheaper | — | — | — | 16.5x |
| Equity ratio | — | — | — | 57.9% |
| Share price (close) | ¥1,426.5 | ¥1,515.5 | ¥4,268 | ¥2,439 |
◎ marks the best value for each metric. Revenue and profit are from the latest full-year earnings release; share prices are closing-price references; P/E = latest close ÷ trailing EPS. For banks and some other financials, revenue means ordinary income.
| Metric | ENEOS | Idemitsu | Cosmo Energy | San-Ai Obbli |
|---|---|---|---|---|
| Average salary | ¥11.4M | ¥9.94M | ◎¥11.5M | ¥8.23M |
| Starting salary (monthly) | — | ¥304,000 | ◎¥330,000 | ¥312,000 |
| Average tenure | 17.4 yrs | ◎17.8 yrs | 14.6 yrs | 15.0 yrs |
| Average age | 43.7 | 42.0 | 43.0 | 39.9 |
| Employees | 1,207 | 5,060 | 253 | 388 |
Average salary is for the reporting (parent) company and is affected by average age and job mix. Holding companies with few employees are left out of the salary comparison.
Close (Oct 30, 2026)
¥1,426.5+50.1% (1Y)
ENEOS +50.1% over 1Y. Compared: Idemitsu +41.4%, Cosmo Energy +22.8%, San-Ai Obbli +21.0%.
Reference chart of daily closing prices, not real-time quotes (split-adjusted; weekly closes before the last year). Each line shows the % change from the start of the period. Updated Oct 30, 2026.
ENEOS5 segments
Idemitsu3 segments
Cosmo Energy4 segments
San-Ai Obbli5 segments
AAverage annual salary from the securities filings: Cosmo Energy ¥11.5M, ENEOS ¥11.4M, Idemitsu ¥9.94M, San-Ai Obbli ¥8.23M. Cosmo Energy pays the most. Averages also depend on staff age and job mix, so check the average age too (ENEOS 43.7, Idemitsu 42.0, Cosmo Energy 43.0, San-Ai Obbli 39.9).
ARevenue in the latest results: ENEOS ¥11.8T, Idemitsu ¥8.1T, Cosmo Energy ¥2.7T, San-Ai Obbli ¥611.6B. ENEOS is the largest by revenue at ¥11.8T, followed by Idemitsu (¥8.1T), Cosmo Energy (¥2.7T) and San-Ai Obbli (¥611.6B).
AOperating margins: Cosmo Energy 5.4%, ENEOS 4.0%, Idemitsu 2.6%, San-Ai Obbli 2.0%. Cosmo Energy turns the highest share of sales into operating profit.
AShare price change over the past year (closing prices, for reference): ENEOS +50.1%, Idemitsu +41.4%, Cosmo Energy +22.8%, San-Ai Obbli +21.0%. ENEOS has risen the most.
Comparing 4 companies (up to 4)
Sources: earnings releases (kessan tanshin), annual securities reports and other public information. Share prices are closing-price references, not real-time. Our data may contain errors; investment decisions are your own responsibility.
