Common Streams

As set out in the Pony Express Rules and Regulations Pony Express is a “multiple common stream” carrier. Effective until further notice, the common streams will be characterized as follows:

  1. The Bakken Light Sweet common stream or “BLS” will originate at Guernsey and will contain not greater than .2% sulfur and will have an API gravity of not less than 40 degrees or more than 46 degrees.

  2. The Mixed Sweet common stream or "MXS" will originate at Guernsey and will contain not greater than .5% sulfur and will have an API gravity of not less than 30 degrees or more than 38 degrees.

  3. The Niobrara common stream or “NIO” will originate at Guernsey and at receipt points on the NECL and will contain not greater than .42% sulfur and will have an API gravity of not less than 34 degrees or more than 42 degrees.

  4. The Pony Express Light common stream or “PXL” will originate at Platteville and Buckingham and will contain not greater than .2% sulfur and will have an API gravity of not less than 43 degrees or more than 53 degrees.

  5. The Kansas Uplift common stream or “KSU” will originate at Natoma and will contain not greater than .8% sulfur and will have an API gravity of not less than 28 degrees or more than 35 degrees.
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