UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, DC 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):  March 13, 2013

LONE PINE RESOURCES INC.

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of incorporation)

403.292.8000

(Registrant’s telephone number, including area code)

(Former name or former address, if changed since last report)

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):

o            Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o            Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o            Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o            Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02.                                        Results of Operations and Financial Condition.

On March 14, 2013, Lone Pine Resources Inc. issued a press release, attached hereto as Exhibit 99.1, announcing its financial and operational results for the fourth quarter and year ended December 31, 2012.  The press release contains certain non-GAAP financial information.  The reconciliation of such information to GAAP financial measures is included in the release.

The information in this Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, is being furnished pursuant to Item 2.02 of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section.

Item 5.02.                                        Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On March 13, 2013, David M. Anderson resigned from the Board of Directors of Lone Pine Resources Inc., effective immediately.

Item 7.01.                                        Regulation FD Disclosure.

A copy of Lone Pine’s press release announcing its year-end 2012 estimated proved and probable reserves determined in accordance with Canadian National Instrument 51-101 — Standards of Disclosure for Oil and Gas Activities and the Canadian Oil and Gas Evaluation Handbook, as evaluated by the Company’s independent qualified reserves evaluators, is attached hereto as Exhibit 99.2 and is incorporated herein by reference.

The information in this Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.2, is being furnished pursuant to Item 7.01 of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended.

Item 9.01.                                        Financial Statements and Exhibits.

(d)  Exhibits

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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

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