Tallgrass Pony Express Pipeline, Belle Fourche Pipeline Company and Bridger Pipeline LLC Announce Joint Tariff Open Season

Tallgrass Pony Express Pipeline, LLC (Pony Express), Belle Fourche Pipeline Company (BFPL) and Bridger Pipeline LLC (Bridger) announced today a joint tariff open season soliciting shipper commitments for crude oil transportation service under a joint tariff from receipt points on the Belle Fourche and Bridger systems in Montana, Wyoming and N. Dakota to delivery points near Cushing, Okla. The binding open season will end on Feb. 4, 2015.

Provided sufficient commitments are received during the open season, Pony Express, Belle Fourche and Bridger will each expand their respective systems to provide capacity for joint transportation service for those volume commitments and for walk-up shippers in accordance with Federal Energy Regulatory Commission requirements and with the terms and conditions set forth in the open season materials. Pony Express also will expand its design capacity (which will be approximately 320,000 barrels per day upon completion of construction of Pony Express’ lateral pipeline in Colorado) based on any commitments secured in two additional ongoing open seasons scheduled to close Jan. 23, 2015.

More information about this open season and a copy of the necessary confidentiality agreement can be obtained by contacting the following: For Pony Express, John Eagleton (303-763-3226), Bob Mishler (303-763-3319) or Max Lawton (303-763-3339), and for Belle Fourche and Bridger, Tad True (307-266-0205) or Bob Stamp (307-266-0345).

About Tallgrass Pony Express Pipeline, LLC

Pony Express owns an approximately 690-mile crude oil pipeline commencing in Guernsey, Wyo., and terminating in Cushing, Okla., with delivery points at the Ponca City Refinery and at Deeprock in Cushing. Upon completion of ongoing construction, Pony Express also will own an approximately 66-mile lateral in Northeast Colorado that will commence in Weld County, Colo., and interconnect with the Pony Express mainline just east of Sterling, Colo. The lateral in Northeast Colorado is expected to be in service sometime during the first half of 2015. Additional detail regarding the Pony Express crude oil pipeline system is available at http://pipeline.tallgrassenergy.com. Tallgrass Energy Partners, LP (NYSE: TEP) owns 33.3 percent of Pony Express and Tallgrass Development, LP owns 66.7 percent of Pony Express. TEP is the managing member of Pony Express.

About Belle Fourche Pipeline Company

Belle Fourche Pipeline Company operates crude oil gathering and transportation systems in the Williston Basin of western N. Dakota and in the Powder River Basin of Wyoming. More information is available at http://truecompanies.truecos.com/BFPL/.

About Bridger Pipeline LLC

Bridger Pipeline LLC operates crude oil gathering and transportation systems in the Williston Basin of eastern Montana and western N. Dakota and in the Powder River Basin of Wyoming. More information is available at http://truecompanies.truecos.com/Bridger/.

Forward-Looking Statements

Disclosures in this press release contain forward-looking statements. All statements, other than statements of historical facts, included in this press release that address activities, events or developments that management expects, believes or anticipates will or may occur in the future are forward-looking statements. Without limiting the generality of the foregoing, forward-looking statements contained in this press release specifically include Pony Express's ability to complete a potential expansion of its crude oil pipeline system, the expected in-service date of any phase of the potential expansion and any synergies or benefits that would flow to Pony Express or its members if the potential expansion is completed. Such statements are subject to a number of assumptions, risks and uncertainties, many of which are beyond the control of TEP and Pony Express, which may cause actual results to differ materially from those implied or expressed by the forward-looking statements, and other important factors that could cause actual results to differ materially from those projected, including those set forth in reports filed by TEP with the Securities and Exchange Commission. Any forward-looking statement applies only as of the date on which such statement is made and Pony Express and TEP do not intend to correct or update any forward-looking statement, whether as a result of new information, future events or otherwise, except as required by law.