Item 1.01. Entry into a Material Definitive Agreement.
On September 15, 2009, Legacy Reserves LP (the "Partnership") entered into an underwriting agreement (the "Underwriting Agreement") with Wells Fargo Securities, LLC, Raymond James & Associates, Inc., RBC Capital Markets Corporation as representatives of the several underwriters named therein (collectively, the "Underwriters"), pursuant to which the Partnership sold 3,300,000 units representing limited partner interests in the Partnership (the "Units") at a price of $15.85 per Unit ($15.18 per Unit, net of underwriting discount). Pursuant to the Underwriting Agreement, the Partnership granted the Underwriters a 30-day option to purchase up to an additional 495,000 Units on the same terms and conditions as those Units sold by the Partnership. The Underwriters exercised such option in full on September 15, 2009. Closing of the issuance and sale of all 3,795,00 Units is scheduled for September 18, 2009.
The offering of the Units has been registered under the Securities Act of 1933, as amended (the "Securities Act"), pursuant to a registration statement on Form S-3 (Registration No. 333-150111) of the Partnership (the "Registration Statement"), which was declared effective on April 16, 2008, and the prospectus supplement dated September 15, 2009, filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act. Certain legal opinions related to the Registration Statement are filed herewith as Exhibits 5.1 and 8.1.
The Underwriting Agreement provides that the obligations of the Underwriters to purchase the Units are subject to approval of certain legal matters by counsel to the Underwriters and other customary conditions. The Partnership has agreed to indemnify the Underwriters against certain liabilities, including liabilities under the Securities Act, or to contribute to payments the Underwriters may be required to make because of any of the those liabilities.
The summary of the Underwriting Agreement in this report does not purport to be complete and is qualified by reference to such agreement, which is filed as Exhibit 1.1 hereto.

Item 9.01 (d) Exhibits. Exhibit Number Description Exhibit 1.1 Underwriting Agreement, dated September 15, 2009, by and among Wells Fargo Securities, LLC, Raymond James & Associates, Inc., RBC Capital Markets Corporation and the several underwriters named on Schedule I thereto. Exhibit 5.1 Opinion of Andrews Kurth LLP. Exhibit 8.1 Opinion of Andrews Kurth LLP relating to tax matters. Exhibit 23.1 Consents of Andrews Kurth LLP (included in Exhibits 5.1 and 8.1).

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