Halliburton 2021 Annual & Sustainability Report Appendix 87 A3 About the Report This report covers the fiscal period from January 1, 2021, to December 31, 2021, for global Halliburton activities. Halliburton is a publicly traded corporation registered Published date of previous report: April 2021 in Delaware and headquartered in Houston, Texas. There were no significant changes to the structure or Reporting cycle: Annual restatements of previously ownership of the Company in 2021. The data in this report reported information are indicated where necessary encompasses all of our product service lines, countries, throughout the report. joint ventures and non-wholly-owned subsidiaries. The 2021 Annual & Sustainability Report has not been This report contains descriptions of our 2021 sustainability externally assured in its entirety. KPMG has provided initiatives, unless otherwise noted. Wherever possible, limited assurance on certain metrics as notated in assessments of performance trends from 2019 to 2021 the appendix data tables. are provided to better highlight the significance of trends over time. Topics covered in this report are those Your feedback is valued. Please send any comments, most pertinent to our business sector, and they arise questions, or suggestions about our 2021 Annual & from the context and expectations of the sector. The Sustainability Report to: [email protected] boundaries of this report correspond to those of the or [email protected] Company’s 2021 Form 10-K. The data included in this report comes from the Company’s official management To request additional copies of the report, please and reporting systems for the various functions described go to: www.ir.halliburton.com/shareholder-services/ in this document. investor-toolkit The 2021 Annual & Sustainability Report was prepared in accordance with the reporting guidelines and terminology of the Global Reporting Initiative (GRI) Core option, the International Petroleum Industry Environmental Conservation Association (IPIECA), and the Sustainability Accounting Standards Board (SASB). We align with the Task Force on Climate-Related Financial Disclosures (TCFD) recommendations. We have mapped our progress on material topics aligned with the United Nations Sustainable Development Goals and the World Economic Forum’s core set of Stakeholder Capitalism Metrics. We provide annual information to Carbon Disclosure Project (CDP), the Dow Jones Sustainability Index, and other top organizations that assess companies for environmental, social, and governance performance.