SET · SEAOIL · stock
Sea Oil Public Company Limited (SEAOIL) stock price history
Every SET trading session of Sea Oil Public Company Limited from Sep 5, 2013 to Sep 28, 2026: 3,182 daily bars, adjusted for splits and dividends, with minute bars from Sep 17, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
SEAOIL adjusted close, 2013 to 2026
- THB 6.39
- All time high, 2014
- THB 4.12
- 52 week high, THB 2.50 low
- 3,182
- Daily sessions since 2013
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2013 to 2026 series and minute bars.
SEAOIL key facts
- Sea Oil Public Company Limited (SEAOIL) closed at THB 3.48 on Sep 28, 2026 on SET.
- SEAOIL's all time high close is THB 6.39, set on Dec 8, 2014; its all time low close is THB 0.9456 on Jul 5, 2018.
- SEAOIL's 52 week range is THB 2.50 to THB 4.12.
- SEAOIL returned +35.1% over the year to Sep 28, 2026 and +40.3% over five years.
- Over ten years SEAOIL returned +41%, +3.5% a year compounded.
- SEAOIL's deepest drawdown was -85.2% from Dec 8, 2014 to Jul 5, 2018.
- DataCedar holds 3,182 daily sessions of SEAOIL history from Sep 5, 2013 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
SEAOIL price chart, 2013 to 2026
SEAOIL returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +2.4% |
| 3 months | +12.3% |
| 6 months | +1.2% |
| Year to date | +20.0% |
| 1 year | +35.1% |
| 3 years | +28.8% |
| 5 years | +40.3% |
| 10 years | +41.0% |
| Since Sep 5, 2013 | +219.8% |
| Compound annual growth, 13.1 years | +9.3% |
SEAOIL records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- THB 6.39 on Dec 8, 2014
- All time low close
- THB 0.9456 on Jul 5, 2018
- 52 week high
- THB 4.12 on Mar 4, 2026
- 52 week low
- THB 2.50 on Oct 28, 2025
- Deepest drawdown
- -85.2% from Dec 8, 2014 to Jul 5, 2018, not yet recovered
- Best single session
- +29.9% on Mar 3, 2022
- Worst single session
- -19.8% on Sep 13, 2013
- Volatility, 1 year annualised
- 33.0%
- Sessions closing higher, 1 year
- 37%
- Growth of 1 since 2013
- 3.2×
- Best calendar year
- 2014, +109%
- Worst calendar year
- 2015, -51%
SEAOIL price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2013 starts on Sep 5, 2013; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | THB 2.90 | THB 4.12 | THB 2.90 | THB 3.48 | +20.0% | 179.4M | 186 |
| 2025 | THB 2.30 | THB 3.01 | THB 1.97 | THB 2.90 | +26.3% | 144.3M | 242 |
| 2024 | THB 2.44 | THB 3.03 | THB 1.74 | THB 2.30 | -4.1% | 79.8M | 243 |
| 2023 | THB 3.15 | THB 3.45 | THB 2.20 | THB 2.39 | -23.7% | 213.4M | 243 |
| 2022 | THB 2.14 | THB 4.42 | THB 2.02 | THB 3.14 | +47.7% | 4.6B | 241 |
| 2021 | THB 1.56 | THB 2.75 | THB 1.56 | THB 2.12 | +31.7% | 1.1B | 241 |
| 2020 | THB 2.47 | THB 2.51 | THB 0.9035 | THB 1.61 | -34.7% | 635.1M | 243 |
| 2019 | THB 2.06 | THB 3.61 | THB 1.87 | THB 2.47 | +19.2% | 288.3M | 244 |
| 2018 | THB 1.63 | THB 2.82 | THB 0.9215 | THB 2.07 | +27.4% | 770.1M | 245 |
| 2017 | THB 2.38 | THB 2.78 | THB 1.48 | THB 1.63 | -31.7% | 603.7M | 242 |
| 2016 | THB 2.45 | THB 3.15 | THB 1.90 | THB 2.38 | -2.7% | 727.2M | 244 |
| 2015 | THB 5.00 | THB 5.72 | THB 2.39 | THB 2.45 | -51.0% | 775.9M | 244 |
| 2014 | THB 2.34 | THB 6.69 | THB 1.99 | THB 5.00 | +109.5% | 4B | 245 |
| 2013 | THB 0.9765 | THB 3.12 | THB 0.9765 | THB 2.39 | n/a | 9B | 79 |
SEAOIL monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | THB 3.48 | +2.4% |
| August 2026 | THB 3.40 | +2.4% |
| July 2026 | THB 3.32 | +7.1% |
| June 2026 | THB 3.10 | -0.6% |
| May 2026 | THB 3.12 | -11.4% |
| April 2026 | THB 3.52 | +2.9% |
| March 2026 | THB 3.42 | +0.4% |
| February 2026 | THB 3.40 | +14.4% |
| January 2026 | THB 2.98 | +2.7% |
| December 2025 | THB 2.90 | -0.7% |
| November 2025 | THB 2.92 | +10.0% |
| October 2025 | THB 2.65 | +3.7% |
About the SEAOIL data
Daily bars. 3,182 sessions from Sep 5, 2013 to Sep 28, 2026, one row per SET trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Sep 17, 2026 forward, most recent session Sep 29, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are SET trading days; minute timestamps are UTC. Prices are in THB. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Sep 5, 2013, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/SEAOIL/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on SET
- SE-ED-R SE-Education Public Company Limited
- SE-R SiamEast Solutions Public Company Limited
- SEAFCO Seafco Public Company Limited
- SEAFCO-R Seafco Public Company Limited
- SEAOIL-R Sea Oil Public Company Limited
- SECURE nForce Secure Public Company Limited
- SECURE-R nForce Secure Public Company Limited
- SEI SEI Medical Public Company Limited
Common questions
SEAOIL share price history
