WTI

WEST TEXAS INTERMEDIATE CRUDE OIL


Physical Properties	API Gravity	39.6° – 40.0° (Range 37°–42°)	Indicates a light crude
	Specific Gravity (60°F)	~0.826	Calculated from API
	Sulfur Content	≤ 0.24% wt (Max 0.42%)	Low → sweet classification
	Color	Pale yellow to light brown	High paraffin content
	Pour Point	30 – 40 °F (−1 – 4 °C)	Low wax precipitation
Distillation / Fractional Yields	Light Naphtha (C5–C6)	2 – 5 vol %	Gasoline blending stock
	Heavy Naphtha (C7–C9)	15 – 20 vol %	Petrochemical feedstock
	Kerosene / Jet (C10–C14)	15 – 20 vol %	Jet A1 / kerosene range
	Gas Oil / Diesel (C15–C20)	25 – 30 vol %	EN590 diesel blending
	Residuum	15 – 20 vol %	Fuel oil / asphalt base
Chemical Composition	Paraffins	~60 – 65 %	Straight-chain hydrocarbons
	Naphthenes	~30 %	Cycloalkanes
	Aromatics	~10 %	Benzene derivatives
	Nitrogen	< 0.1 %	Trace impurity
	Carbon Residue (CCR)	< 0.2 %	ASTM D189 test
	Salt Content	< 10 PTB	(lb/1000 bbl) per ASTM D3230
	Acceptable Range	37°–42° API, ≤ 0.42% S	Official NYMEX quality spec