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Premiums for Caspian oil grades surge vs Brent amid Middle East supply disruptions, traders say

Published by Global Banking & Finance Review

Posted on March 17, 2026

3 min read

· Last updated: April 1, 2026

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MOSCOW, March 17 (Reuters) - Prices for Caspian oil grades, Kazakhstan's CPC Blend and Azerbaijan's BTC, surged this month as supply shortages triggered by the Iranian war pushed premiums for the oil

Caspian oil grade premiums surge vs Brent amid Middle East supply disruptions, traders say

Rising Premiums for Caspian Crude Grades in the Mediterranean Market

MOSCOW, March 17 (Reuters) - Prices for Kazakhstan's CPC Blend and Azerbaijan's BTC crude have jumped this month as supply shortages linked to the Iranian war pushed premiums in the Mediterranean oil market well above the dated Brent benchmark, traders said.

Oil and petroleum product prices in Europe have risen since the start of the month as Middle East disruptions forced refiners to seek alternatives to regional grades to keep fuel output steady.

Key Caspian Grades and Their Role in European Supply

CPC Blend and Azeri BTC have been flowing mainly to the Mediterranean and Europe in recent months, helped by proximity and their value for European plants.

CPC Blend Premiums and Market Dynamics

CPC Blend cargoes loading in March and April traded at premiums of $1-2 per barrel to dated Brent last week, reversing recent discounts of up to $5 per barrel, market sources said.

Factors Affecting CPC Blend Exports

Exports of the grade have been disrupted in recent months by bad weather, drone attacks in the Black Sea and operational problems at Kazakhstan's Tengiz oilfield.

Most April-loading CPC Blend cargoes had already traded as of March 17, traders said, with only a few late-April parcels still on offer.

"CPC Blend is one of the grades Mediterranean refiners hope to rely on amid supply disruptions in the Middle East, but unfortunately its loadings are also rather unstable," a trader in the European market said.

Unstable loadings pushed CPC Blend to record discounts last month, but improved exports have lifted April premiums. 

Risks and Constraints for CPC Blend

Loadings have also been hit by attacks on tankers in the Black Sea. Over the weekend a Greek-managed tanker bound for the CPC terminal was struck by an unidentified object and suffered minor damage. Those risks, together with rising freight and insurance costs, are keeping CPC premiums from climbing further, traders said.

Azeri BTC Stability and Premium Increases

Meanwhile, Azeri BTC exports have remained stable. Premiums for the light, sweet grade have risen sharply amid tight supply in Europe, with April cargoes trading at premiums of $5-6 per barrel or higher, up from about $4 per barrel last month, traders said. Some cargoes changed hands at premiums as high as $8-9 per barrel as buyers paid up to secure volumes.

(Reporting by Reuters. Editing by Chizu Nomiyama and Mark Potter)

Key Takeaways

  • Since early March 2026, Brent crude prices surged above $100/bbl due to Strait of Hormuz disruptions that halted around 20% of global seaborne oil flows (en.wikipedia.org).
  • CPC Blend for March–April loadings moved to a premium of $1–2/bbl over Dated Brent, reversing prior discounts of up to $5/bbl caused by weather, drone attacks, and field disruptions (logistics.maritimeprofessional.com).
  • Azeri BTC for April loading rose to a $5–6/bbl premium as buyers capitalize on supply tightness in Europe, while CPC supply remains volatile due to maritime risks and insurance costs (apnews.com).

References

Frequently Asked Questions

Why have Caspian oil premiums surged above Brent?
Supply shortages caused by the Middle East war have led to higher demand for Caspian grades, pushing their premiums above the Brent benchmark.
Which Caspian oil grades are seeing increased premiums?
Kazakhstan's CPC Blend and Azerbaijan's BTC are the main grades experiencing significant premium increases over Brent.
How have recent events affected CPC Blend supply?
CPC Blend supply has been disrupted by adverse weather, drone attacks in the Black Sea, and operational issues at the Tengiz oil field.
What impact have supply disruptions had on European refineries?
European refineries are seeking alternatives to Middle Eastern oil, increasing demand and prices for Caspian grades.
Are Azeri BTC oil exports stable amid market volatility?
Yes, Azeri BTC oil exports have remained stable, with rising premiums due to supply shortages in Europe.

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