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The New York Mercantile Exchange, Inc. has announced margin changes for some of its crude oil and petroleum product swap futures contracts on NYMEX ClearPort, beginning at the close of business on May 6.

The margins for the European ultra light sulfur diesel gasoline swap futures contract will increase to $28,000 from $21,000 for clearing members, to $30,800 from $23,100 for members, and to $37,800 from $28,350 for customers.

Margins for the first month of the East-West fuel oil spread swap (Platts) futures contract will remain the same. All other months will increase to $5,000 from $4,000 for clearing members, to $5,500 from $4,400 for members, and to $6,750 from $5,400 for customers.

The margins for the European gasoil crack swap spread futures contract will increase to $5,000 from $4,500 for clearing members, to $5,500 from $4,950 for members, and to $6,750 from $6,075 for customers.

Margins for the European Jet CIF North West Europe vs. gasoline futures swap contract will increase to $15,000 from $10,000 for clearing members, to $16,500 from $11,000 for members, and to $20,250 from $13,500 for customers.

Margins for the Mt. Belvieu propane (OPIS) swap futures will increase to $4,000 from $3,500 for clearing members, to $4,400 from $3,850 for members, and to $5,400 from $4,725 for customers.

The margins for the Singapore fuel oil spread swap futures contract will increase to $4,000 from $3,000 for clearing members, to $4,400 from $3,300 for members, and to $5,400 from $4,050 for customers.