Pony Express Pipeline (PXP)

Click to see larger, detailed image Tallgrass Pony Express Pipeline, LLC (PXP) is an oil pipeline that transports domestic light crude found in the Bakken production area of North Dakota and eastern Montana to Cushing, Oklahoma. The pipeline consists of a converted portion of an existing natural gas pipeline and a newly constructed pipeline. The PXP pipeline increases energy independence by adding capacity for safe and efficient energy transportation.

Pony Express is owned jointly by Tallgrass Development, LP (66.7 percent) and Tallgrass Energy Partners, LP (33.3 percent).

For more Pony Express Pipeline operational and shipper information, please visit our Tallgrass Pipeline Interactive Website.

  • Pony Express Pipeline originates at Guernsey, Wyoming, goes southeast crossing through the corners of NE Colorado and SW Nebraska before turning south at Lincoln, Kansas. Pony Express terminates at an existing petroleum facility in Cushing, Oklahoma.

Cushing Extension Facts

  • Approximately 260-mile new construction extension from Lincoln County, Kansas, to Payne County, Oklahoma
  • 24-inch diameter underground crude oil pipeline
  • Transporting light, sweet crude oil
  • Pipeline capacity between 230,000 and 320,000 barrels per day (bpd)
  • 80 percent of the route is co-located with existing energy infrastructure
Counties along the Route:
  • Kansas: Lincoln, Ellsworth, Saline, McPherson, Harvey, Sedgwick, Butler and Cowley
  • Oklahoma: Kay, Noble and Payne
Above Ground Facilities:
  • Pump stations and metering facilities


Pony Express Pipeline Project
370 Van Gordon Street
Lakewood, Colorado 80228
Phone: 888-212-9346

Pony Express Pipeline Project Right-of-Way Office in Wichita, Kansas
Phone: 316-201-6511

Email: PXP@tallgrassenergylp.com