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US Medium Sour Crude Prices Drop as Export Levels Decline

NEW YORK29 May 2026

Rizz Jobs News Desk·2 min read

Market Briefing

  • US medium sour crude prices are declining as American oil exports slow down.
  • Mars crude has lost significant value recently, influenced by reduced US exports and changing global demand dynamics.
  • Market participants are watching inventory levels and demand trends closely.

Prices for a key US medium sour crude grade are weakening, highlighting a slowdown in American oil exports. Mars crude, produced in the Gulf of Mexico, has seen a decline in five of the last seven trading sessions, losing 75% of its value on Wednesday before a slight recovery on Thursday.

The medium sour grade, which often trades in tandem with US export levels, had previously surged as global markets turned to American shipments to replace disrupted Middle Eastern supplies due to the Iran conflict. However, recent weeks have seen a cooling of US exports from record highs, leading to a reduction in the premium Mars crude commands over benchmark West Texas Intermediate. The price difference has narrowed to about $1.50 a barrel, down from a peak of $18 in early April.

US crude exports fell by 1.2 million barrels a day to 4.4 million barrels last week, according to Energy Information Administration data released Thursday. In April, the US exported a record volume of more than 6.4 million barrels a day. The decline in exports is attributed to dwindling US inventories and increased demand from domestic refineries, limiting the amount of crude available for overseas shipment.

Additionally, there are signs of slowing oil demand in China, which had been a significant market for Mars and other medium sour grades. Asian refiners had sought these grades as replacements for Middle Eastern barrels. Declining inventories at the Cushing, Oklahoma, storage hub may also be impacting Gulf Coast grades. EIA data showed Cushing inventories fell to 23 million barrels last week, nearing levels considered by traders as tank bottoms.

Background

Mars crude, a medium sour grade from the Gulf of Mexico, has been a key player in global oil markets, especially as geopolitical tensions have disrupted traditional supply routes. The recent price fluctuations reflect broader trends in global oil demand and supply, particularly the shifting dynamics of US exports.

As US crude exports continue to fluctuate, market participants will be closely monitoring inventory levels and demand trends, particularly in key markets like China. The ongoing adjustments in supply and demand dynamics will play a crucial role in determining future price movements for Mars crude and other similar grades.

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Topics

US crude exportsMars crudeoil pricesGulf of MexicoEnergy Information Administration

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