UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (date of earliest event reported): August 18, 2016

Tallgrass Energy Partners, LP

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (913) 928-6060

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On August 18, 2016, Tallgrass Energy Partners, LP (the “Partnership”), Tallgrass Energy Finance Corp., a wholly owned subsidiary of the Partnership (the “Co-Issuer” and together with the Partnership, the “Issuers”), and the Partnership’s existing direct and indirect wholly owned subsidiaries (other than the Co-Issuer, the “Guarantors”), entered into a purchase agreement (the “Purchase Agreement”) with Barclays Capital Inc., as representative of the several initial purchasers named therein (the “Initial Purchasers”), pursuant to which the Issuers agreed to sell $400,000,000 in aggregate principal amount of the Issuers’ 5.50% Senior Notes due 2024 (the “2024 Notes”), along with the related guarantees of the 2024 Notes. The 2024 Notes were offered and sold in a transaction exempt from the registration requirements under the Securities Act of 1933, as amended (the “Securities Act”). The 2024 Notes are expected to be sold to qualified institutional buyers in reliance on Rule 144A under the Securities Act and to persons outside the United States in reliance on Regulation S under the Securities Act.

The Purchase Agreement contains customary representations and warranties of the parties and indemnification and contribution provisions under which the Issuers and the Guarantors, on one hand, and the Initial Purchasers, on the other, have agreed to indemnify each other against certain liabilities, including liabilities under the Securities Act, and customary conditions to closing, obligations of the parties and termination provisions.

The Initial Purchasers and certain of their affiliates are full service financial institutions engaged in various activities, which may include securities trading, commercial and investment banking, financial advisory, investment management, investment research, principal investment, hedging, financing and brokerage activities. The Initial Purchasers and certain of their affiliates have, from time to time, performed, and may in the future perform, various commercial and investment banking and financial advisory services for the Partnership and its affiliates, for which they received or may in the future receive customary fees and expenses. In particular, affiliates of the Initial Purchasers are lenders under the Partnership’s revolving credit facility.

The foregoing description of the Purchase Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Purchase Agreement, which is filed with this Current Report on Form 8-K as Exhibit 1.1 and is incorporated herein by reference.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

INDEX TO EXHIBITS