FIRST AMENDMENT HALLIBURTON COMPANY SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

Exhibit 10.1

FIRST AMENDMENT

HALLIBURTON COMPANY

SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

AS AMENDED AND RESTATED

EFFECTIVE JANUARY 1, 2008

WHEREAS, Halliburton Company (the “Company”) has adopted and maintains the Halliburton Company Supplemental Executive Retirement Plan, as amended and restated effective January 1, 2008 (the “SERP”);

WHEREAS, the Company desires to amend the SERP, effective as of September 15, 2009, to change the  vesting provision for all amounts credited to a Participant’s account, which are attributable to allocations made for the 2009 Allocation Year and subsequent Allocation Years as provided herein;

WHEREAS, Article X of the SERP provides that, subject to certain inapplicable limitations, the SERP may be amended by the Company’s Compensation Committee;

NOW, THEREFORE, the SERP is hereby amended as follows effective September 15, 2009:

1.           Article VI of the SERP is hereby ame