Captain
--
--
- Class
- Heavy/Sour
- API
- 19°
- Sulfur
- 0.5%
Crude grade comparison
Captain vs Napo
VS
Captain – Napo spread
-- · Captain premium
Napo
--
--
- Class
- Heavy/Sour
- API
- 19°
- Sulfur
- 2%
Captain is heavy/sour crude (19° API, 0.5% sulfur); Napo is heavy/sour crude (19° API, 2% sulfur).
Crude quality
Quality & refinery yields
How the two crudes differ in the barrel. Each property uses its own scale.
- Captain Crude
- Napo Crude
Physical & chemical properties
API gravityhigher = lighter
C19°
N19°
Sulfur contenthigher = sourer
C0.5%
N2%
Densityhigher = heavier
C g/cm³
N g/cm³
Viscosityhigher = thicker
C cSt
N cSt
Pour pointhigher = waxier
C °C
N °C
Typical refinery yields
Gasoline% of barrel
Diesel% of barrel
Jet fuel% of barrel
Residual fuel% of barrel
Bars show each yield range; the faint part runs from 0 to the low end. Scale 0–50%.
Full specification comparison
| Property | Captain Crude | Napo Crude | Captain − Napo |
|---|---|---|---|
| Classification | |||
| Classification | Heavy/Sour | Heavy/Sour | |
| Origin | Captain field, North Sea | Napo field, Amazon basin | |
| Chemical properties | |||
| API gravity | 19° API | 19° API | 0 °API |
| Sulfur content | 0.5% | 2% | -1.5% |
| Density | g/cm³ | g/cm³ | 0 g/cm³ |
| Pour point | °C | °C | 0 °C |
| Viscosity | cSt | cSt | 0 cSt |
| Typical refinery yields | |||
| Gasoline | % | % | 0 pts |
| Diesel | % | % | 0 pts |
| Jet fuel | % | % | 0 pts |
| Residual fuel | % | % | 0 pts |
| Trading & logistics | |||
| Delivery basis | FOB | FOB | |
| Major exchanges | |||
| Export hub | North Sea offshore loading | Balao (via SOTE/OCP pipelines) | |
| Main destinations | Northwest Europe | US, Asia | |
| Benchmark type | |||
| Market profile | |||
| Key characteristics | Heavy, viscous North Sea crude | Heavy, sour Ecuadorian crude | |
| Refining notes | Fuel oil feedstock | Fuel oil feedstock | |
FAQ
Captain vs Napo questions
The spread, the quality gap and why each grade is a benchmark.
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Captain Crude was $ and Napo Crude $ per barrel, so Napo traded at a premium of $0 over Captain. Over the previous 30 shared price days the spread averaged -- $/bbl, with Napo priced above Captain on 0 day(s).
Captain Crude is a heavy/sour Captain field, North Sea crude (19° API, 0.5% sulfur) and benchmark. Napo Crude is a heavy/sour Napo field, Amazon basin crude (19° API, 2% sulfur) and benchmark.