Report of Foreign Issuer (6-k)

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FORM 6-K

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Report of Foreign Issuer pursuant to Rule 13-a-16 or 15d-16
of the Securities Exchange Act of 1934

FOR THE MONTH OF MAY, 2013

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COMMISSION FILE NUMBER 1-15150

Enerplus Corporation

The Dome Tower
Suite 3000, 333 - 7 ^th  Avenue S.W.
Calgary, Alberta
Canada T2P 2Z1

[phone]

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Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F		o		Form 40-F		ý

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1)

Yes		o		No		ý

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7)

Yes		o		No		ý

Indicate by check mark whether, by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the securities Exchange Act of 1934.

Yes		o		No		ý

   

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EXHIBIT INDEX

EXHIBIT 99.1—Enerplus First Quarter Report for the Period Ending March 31, 2013

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SIGNATURE

        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.

ENERPLUS CORPORATION
BY:		/s/ DAVID A. MCCOY David A. McCoy Vice President, Corporate Services, General Counsel & Corporate Secretary

DATE: May 10, 2013

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SIGNATURE