Crude grade comparison

Azeri Light (BTC) vs Castilla

Price, Azeri Light (BTC) spread, quality and refinery yields side by side. Updated .

Azerbaijan (Caspian Sea)

Azeri Light (BTC)

$84.09USD/BBL
▲ +0.93 (+1.11%)
Class
Light/Sweet
API
35°
Sulfur
0.15%
VS
Azeri Light (BTC) – Castilla spread -- USD/BBL · Azeri Light (BTC) premium
Colombia (Llanos Basin)

Castilla

--
--
Class
Light/Sweet
API
31°
Sulfur
0.18%

Azeri Light (BTC) Crude vs Castilla Crude: on July 06, 2026 Azeri Light (BTC) settled at $84.09/bbl (+1.11%) and Castilla price information is not available. Azeri Light (BTC) is light/sweet crude (35° API, 0.15% sulfur); Castilla is light/sweet crude (31° API, 0.18% sulfur).

Crude quality

Quality & refinery yields

How the two crudes differ in the barrel. Each property uses its own scale.

  • Azeri Light (BTC) Crude
  • Castilla Crude

Physical & chemical properties

API gravityhigher = lighter
AL(35°
C31°
Sulfur contenthigher = sourer
AL(0.15%
C0.18%
Densityhigher = heavier
AL(0.851 g/cm³
C0.845 g/cm³
Viscosityhigher = thicker
AL(4.2 cSt
C6 cSt
Pour pointhigher = waxier
AL(15 °C
C10 °C

Typical refinery yields

Gasoline% of barrel
AL(48-52%
C40-44%
Diesel% of barrel
AL(28-32%
C32-36%
Jet fuel% of barrel
AL(01-12'%
C01-12'%
Residual fuel% of barrel
AL(08-10'%
C10-12'%

Bars show each yield range; the faint part runs from 0 to the low end. Scale 0–50%.

Full specification comparison

Full specification comparison of Azeri Light (BTC) Crude and Castilla Crude
PropertyAzeri Light (BTC) CrudeCastilla CrudeAzeri Light (BTC) − Castilla
Classification
ClassificationLight/SweetLight/Sweet
OriginAzerbaijan (Caspian Sea)Colombia (Llanos Basin)
Chemical properties
API gravity35° API31° API+4 °API
Sulfur content0.15%0.18%-0.03%
Density0.851 g/cm³0.845 g/cm³+0.006 g/cm³
Pour point15 °C10 °C+5 °C
Viscosity4.2 cSt6 cSt-1.8 cSt
Typical refinery yields
Gasoline48-52%40-44%+8 pts
Diesel28-32%32-36%-4 pts
Jet fuel01-12'%01-12'%0 pts
Residual fuel08-10'%10-12'%-2 pts
Trading & logistics
Delivery basisCeyhan (Turkey)Coveñas Terminal
Major exchangesPlatts, Argus (Med CIF)Spot differential
Export hubCeyhan, Turkey (via BTC pipeline)Coveñas Terminal
Main destinationsEurope, MediterraneanUS Gulf, Europe
Benchmark typeRegional (Med)Regional
Market profile
Key characteristicsCaspian light sweet, BTC pipeline to MediterraneanColombian sweet crude, Atlantic export
Refining notesHigh gasoline & kerosene yields; low residual outputMedium-light sweet balance
FAQ

Azeri Light (BTC) vs Castilla questions

The spread, the quality gap and why each grade is a benchmark.

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July 06, 2026 Azeri Light (BTC) Crude was $84.09 and Castilla Crude $ per barrel, so Castilla traded at a premium of $0 over Azeri Light (BTC). Over the previous 30 shared price days the spread averaged -- $/bbl, with Castilla priced above Azeri Light (BTC) on 0 day(s).

Azeri Light (BTC) Crude is a light/sweet Azerbaijan (Caspian Sea) crude (35° API, 0.15% sulfur) and Regional (Med) benchmark. Castilla Crude is a light/sweet Colombia (Llanos Basin) crude (31° API, 0.18% sulfur) and Regional benchmark.