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): June 17, 2016 (June 14, 2016)

Hi-Crush Partners LP

(Exact name of registrant as specified in its charter)

Three Riverway

Suite 1350

Houston, Texas 77056

(Address of principal executive office) (Zip Code)

(713) 963-0099

(Registrant’s telephone number, including area code)

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:

8.01         Other Events.

Underwriting Agreement

On June 14, 2016, Hi-Crush Partners LP (the “Partnership”) entered into an Underwriting Agreement (the “Underwriting Agreement”), by and among the Partnership, Hi-Crush GP LLC, the general partner of the Partnership (the “General Partner”), and Credit Suisse Securities (USA) LLC, (the “Underwriter”), providing for the offer and sale by the Partnership, and purchase by the Underwriter, of 4,500,000 common units (the “Firm Units”) representing limited partner interests of the Partnership (“Common Units”) at a price of $10.29 per Common Unit. The total proceeds (before estimated offering expenses) from the sale of the Firm Units are expected to be approximately $46.3 million. Pursuant to the Underwriting Agreement, the Partnership also granted the Underwriter an option for a period of 30 days to purchase up to an additional 675,000 Common Units (the “Option Units”) on the same terms. The material terms of the offering of the Common Units are described in the prospectus supplement, dated June 14, 2016 filed by the Partnership with the Securities and Exchange Commission (the “Commission”) on June 16, 2016 pursuant to Rule 424(b) under the Securities Act of 1933, as amended (the “Securities Act”). The offer and sale of the Common Units are registered with the Commission pursuant to a Registration Statement on Form S-3 (File No. 333-191481), which was declared effective by the Commission on October 28, 2013, and the closing with respect to the offering of such Common Units is expected to occur on June 20, 2016, subject to customary closing conditions.

The Underwriting Agreement contains customary representations, warranties and agreements of the parties, and customary conditions to closing, obligations of the parties and termination provisions. The Partnership and the General Partner have agreed to indemnify the Underwriter against certain liabilities, including liabilities under the Securities Act, and to contribute to payments the Underwriter may be required to make because of any of those liabilities.

The foregoing description is qualified in its entirety by reference to the full text of the Underwriting Agreement, which is attached as Exhibit 1.1 to this Current Report on Form 8-K and incorporated in this Item 8.01 by reference.

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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 thereunto duly authorized.

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EXHIBIT INDEX

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