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): February 12, 2014

ENTERPRISE PRODUCTS PARTNERS L.P.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (713) 381-6500

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 (see General Instruction A.2 below):

On February 12, 2014, Enterprise Products Partners L.P. (the “Partnership”), Enterprise Products OLPGP, Inc. (“EPOGP”) and Enterprise Products Operating LLC (“EPO”) completed the public offering of $850 million aggregate principal amount of EPO’s 3.90% Senior Notes JJ due February 2024 (the “2024 Notes”) and $1.15 billion aggregate principal amount of EPO’s 5.10% Senior Notes KK due February 2045 (the “2045 Notes” and, together with the 2024 Notes, the “Notes”). Pursuant to the indentures described below, the Notes are guaranteed on an unsecured and unsubordinated basis by the Partnership (the “Guarantee,” and together with the Notes, the “Securities”).

The offering of the Securities has been registered under the Securities Act of 1933, as amended (the “Securities Act”), pursuant to a Registration Statement on Form S-3 (Registration Nos. 333-189050 and 333-189050-01) (the “Registration Statement”), as supplemented by the Prospectus Supplement dated February 5, 2014 relating to the Securities, filed with the Securities and Exchange Commission (the “Commission”) on February 6, 2014, pursuant to Rule 424(b) of the Securities Act (together with the accompanying prospectus dated June 3, 2013, the “Prospectus”).

The Securities were issued under an Indenture, dated as of October 4, 2004, among EPO (as successor to Enterprise Products Operating L.P.), as issuer, the Partnership, as guarantor, and Wells Fargo Bank, N.A., as trustee, (collectively, as amended and supplemented by the Tenth Supplemental Indenture, dated as of June 30, 2007, providing for EPO as successor issuer, the “Base Indenture”), as amended and supplemented by the Twenty-Fifth Supplemental Indenture dated as of February 12, 2014 (the “Supplemental Indenture,” and together with the Base Indenture, the “Indenture”).

The Notes provide that interest will accrue from February 12, 2014 at a rate of 3.90% per annum for the 2024 Notes and 5.10% per annum for the 2045 Notes. Interest on the Notes will be payable on February 15 and August 15 of each year, commencing August 15, 2014. The 2024 Notes mature on February 15, 2024 and the 2045 Notes mature on February 15, 2045. The Notes also provide that at any time prior to November 15, 2023 (three months prior to their maturity date) for the 2024 Notes and August 15, 2044 (six months prior to their maturity date) for the 2045 Notes, EPO may redeem some or all of the Notes at the applicable redemption price that includes accrued and unpaid interest and a make-whole premium. At any time on or after November 15, 2023 for the 2024 Notes and August 15, 2044 for the 2045 Notes, EPO may redeem some or all of the Notes at an applicable redemption price equal to the principal amount of the Notes to be redeemed, plus accrued and unpaid interest.

The terms of the Securities and the Supplemental Indenture are further described in the Prospectus under the captions “Description of the Notes” and “Description of Debt Securities,” which descriptions are incorporated herein by reference to Exhibit 99.2 to the Partnership’s Current Report on Form 8-K filed with the Commission on February 7, 2014. Such descriptions do not purport to be complete and are qualified by reference to the Base Indenture and to the Supplemental Indenture, which is filed as Exhibit 4.3 hereto and incorporated herein by reference.

Certain legal opinions related to the Registration Statement are filed herewith as Exhibit 5.1.

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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 hereunto duly authorized.

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EXHIBIT INDEX