The information set forth under Item 5.03 regarding the amendment and restatement of the Amended and Restated Bylaws (the "Bylaws") of Concho Resources Inc. (the "Company") is incorporated by reference into this Item 3.03.

On November 7, 2012, the Board of Directors of the Company approved an amendment and restatement to the Company's Bylaws (as so amended and restated, the "Second Amended and Restated Bylaws"), effective immediately. The changes to the Second Amended and Restated Bylaws included (i) an amendment to the advance notice period required for the timely delivery of stockholder proposals, (ii) an amendment to the information required to be provided in such stockholder's notice and (iii) a clarification and expansion of the enumeration of the Company's authorized officers who are entitled to act on behalf of the Company with respect to securities of other entities owned by the Company.

Pursuant to the Second Amended and Restated Bylaws, to be timely, a stockholder's notice must be delivered to the Secretary of the Company not less than ninety (90) days nor more than one hundred twenty (120) days prior to the anniversary date of the immediately preceding annual meeting of stockholders. The Second Amended and Restated Bylaws require the stockholder's notice to include, among other things, a description of any agreement, arrangement or understanding (including any derivative or similar positions) that has been entered into as of the date of the notice by, or on behalf of, such stockholder with respect to the Company's securities. In addition, the Second Amended and Restated Bylaws expand the group of officers authorized to take action with respect to securities of other entities owned by the Company to include the Company's general counsel and chief financial officer.

In accordance with the Second Amended and Restated Bylaws, notice of stockholder-proposed business or director nominations for the Company's 2013 annual meeting of stockholders will be considered timely if delivered to the secretary of the Company no earlier than December 29, 2012 and no later than January 27, 2012.

The foregoing description of the Second Amended and Restated Bylaws is qualified in its entirety by reference to the complete text of the Second Amended and Restated Bylaws, a copy of which is attached as Exhibit 3.1 to this Current Report on Form 8-K and incorporated herein by reference.

(d) Exhibits.

Exhibit No.                            Description of Exhibit
3.1               Second Amended and Restated Bylaws of Concho Resources Inc., as
                  amended November 7, 2012.