Margins for the Central Appalachian coal futures contract will increase to $1,750 from $1,000 for clearing members, to $1,925 from $1,100 for members, and to $2,363 from $1,350 for customers.
Margins for the propane futures contract will increase to $1,750 from $1,500 for clearing members, to $1,925 from $1,650 for members, and to $2,363 from $2,025 for customers.