TLM

FORM 6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

January 4, 2016

TALISMAN ENERGY INC.

Commission File No. 1-6665

[Translation of registrant’s name into English]

2000, 888 - 3rd Street S.W.,

Calgary, Alberta, Canada, T2P 5C5

[Address of principal executive offices]

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 ¨      Form 40-F x

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): ¨

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

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): ¨

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

Exhibit  Title

99.1                        News Release — Talisman Energy Inc. and Related Canadian Partnerships Announce Name Changes

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 99.1

PRESS RELEASE

Calgary, 4 January 2016

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TALISMAN ENERGY INC. AND RELATED CANADIAN PARTNERSHIPS ANNOUNCE NAME CHANGES

We are pleased to announce that, effective January 1, 2016, the legal name of Talisman Energy Inc. has been changed to Repsol Oil & Gas Canada Inc. In addition, the following related Canadian partnerships have been renamed as follows:

These legal name changes do not create new legal entities or affect any rights or obligations under existing agreements, licenses or permits.

Copies of the Certificate of Amendment for the name change of Talisman Energy Inc. and Certified Copies of the Proofs of Filing for the Partnerships listed above may be found at: www.talisman-energy.com/news/in_the_news.html.

The addresses for service of these entities have not changed.  Where any applicable agreements specify that notices are to be addressed to the attention of certain individuals, positions or departments, such specifications should continue to be used.

Today’s announcement only affects the legal entities listed above. The names of all other heritage Talisman subsidiaries will remain unchanged until further notice.

About Repsol Oil & Gas Canada Inc.

Repsol Oil & Gas Canada Inc. is an upstream oil and gas company, incorporated in Canada and is a wholly owned subsidiary of the Spanish integrated energy company Repsol S.A.

For media and general inquiries, please contact:

Brent Anderson

Communications and External Relations Manager

Phone: 403-237-1912

Email: info@repsol.com

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