Environmental

Halliburton 2021 Annual & Sustainability Report Environmental 26 Environmental E1 Climate Change and At Halliburton, our work to help our customers Emissions Reduction extract oil and gas that fuels the world in a safe, E2 reliable, and efficient manner is at the core of our business. Oil and gas are an essential source Environmental of energy and play a critical role in the energy Management transition. For our own and our customers’ E3 operations, we actively work to identify ways to facilitate the evolution to a lower-carbon future Sustainable Energy Evolution with the innovation of new technologies that mitigate environmental impact. We proactively manage environmental risks, and we take measures to reduce energy use, water use, and waste generation. At Halliburton Labs, we collaborate with early-stage companies that develop clean energy technologies to help advance their products to the marketplace.

Halliburton 2021 Annual & Sustainability Report Environmental 27 E1 Climate Change and Emissions Reduction Our Climate Change Sustainability Commitments We lower the GHG emissions profile of our • Achieve a 40% reduction of Scope 1 and 2 emissions internal activities, and of our portfolio of by 2035 from our 2018 baseline. technologies and services, to meet the goals of • Partner with Tier 1 suppliers to track and reduce the Paris Climate Accord, which seeks to limit Scope 3 GHG emissions. global warming to well below 2°C compared to pre-industrial levels. As a result of these efforts, we also help our customers decarbonize their operations and reduce their emission footprints. We are committed to a sustainable energy future and have work underway to improve our energy efficiency and advance clean energy development. For more information on our Company’s commitments, please refer to our Climate Change Statement on the Halliburton website. 2021 HIGHLIGHTS Sustainable Energy Priorities Halliburton has set science-based targets to reduce Scope 1 and 2 emissions by 40% by 2035 from our 2018 baseline. We have made progress on our targets by quantifying and executing on opportunities, which puts us on track to reduce emissions and meet reduction targets. Nigeria Cuts Diesel Custom SeaQuest® and Fuel Use by More ScaleFightR Solution Cuts Than 58% Emissions in the Gulf of Mexico In Nigeria, the installation of a power transformer The Halliburton Stim Star IV field operations team combined our at our facility led to a greater than 58% SeaQuest® seawater-based fracturing fluid system with our ScaleFightR improvement in diesel consumption, generating scale-inhibitor chemicals to overcome the technical challenges cost savings as well as emissions reduction. associated with operations in sea water and barium-rich formations. With this change, we reduced the number of Compared to the freshwater fracturing fluids that are typically used to shipments and, therefore, the number of trucks stimulate reservoirs and that require multiple vessels to carry barrels on the road. of fluid to the wellsite, the patent-pending combination eliminated the requirement for extra supply vessels.

Halliburton 2021 Annual & Sustainability Report Environmental 28 Climate Risk Scenario Analysis Sustainability Labels In 2021, Halliburton conducted a detailed climate risk Using sustainability labels, we identify the emissions scenario analysis. A team of 24 internal cross-functional footprint of our critical products and services in the field. stakeholders, along with external consultants, assessed We expect that disclosing this information will help our the significance of climate-related risks and opportunities, customers make informed product selections and meet aligned to TCFD guidance. their decarbonization targets. We completed a systematic process for our climate risk As part of our organization’s digital transformation, scenario analysis: Halliburton PSLs will work to integrate sustainability 1. Assessed the significance of climate-related labels into digitized workflows so we can generate risks and opportunities labels before we execute jobs and compare those 2. Identified and defined a range of scenarios labels with operational data and actual post-execution 3. Mapped business impacts results. Access to this data will help our PSLs better 4. Determined potential responses understand whether opportunities exist during technology development to reduce emissions and prioritize the The analysis considered the International Energy opportunities for our customers’ benefit. Agency (IEA) Stated Policies Scenario (STEPS) and Facility Improvements to Reduce Sustainable Development Scenario (SDS), as well as the Intergovernmental Panel on Climate Change (IPCC) Energy Use Climate Scenario SSP3-RCP7. Our use of published Halliburton strives to reduce energy use in our facilities. In scenarios that consider a range of alternative future 2021, Halliburton reduced our global real estate footprint outcomes helps to inform our understanding of climate- by more than 2%, which decreased our facilities’ energy related risks and opportunities and supports our demands. This is in addition to a 22% reduction of our real development of resilient strategies for a complex and estate footprint in 2020. dynamic future. To meet sustainability targets and to comply with We categorized transition risks and opportunities regulations, we assess newer real estate technologies and according to their market, policy, technology, and update our facilities accordingly. As part of our building reputation impacts. We categorized physical risks as maintenance, we also evaluate technologies associated chronic, such as extreme heat and drought, or acute, such with major structural elements — including heating, air as hurricanes and flooding. We assessed these impacts conditioning, and ventilation (HVAC), insulation, and based on a review of: windows — to identify potential updates for more energy- • Input from climate experts and consultants efficient performance. • Review of relevant reports, including those from American Petroleum Institute (API), IPIECA, and Energy Scope 1 GHG Emissions Workforce and Technology Council, and IEA and IPCC Metric tons CO e transition scenarios 2 • Existing risk disclosures from suppliers, peers, and customers (CDP and other disclosures) 2019 4,354,369 2020 2,626,561 The takeaways from our climate risk scenario analysis 2021 3,503,441 support our ERM process and reinforce our sustainable energy strategic priorities: Scope 2 GHG Emissions 1 Help our customers meet their goals for Metric tons CO2e reducing GHG emissions 2 Reduce our internal emissions in alignment 2019 249,259 with our science-based targets 2020 191,451 3 Advance clean energy solutions through 2021 248,949 Halliburton Labs

Halliburton 2021 Annual & Sustainability Report Environmental 29 Facility Improvements to Reduce Energy Use (continued) Halliburton evaluates the use of artificial intelligence (AI) to help make our building automation systems for air conditioning and heating proactive, rather than reactive, to external forces. Typical building automation systems work in a sequence of events. They react to temperature changes and humidity, and then adjust interior spaces based on set points. Using AI, we can examine whether the automation system can predict what it must do to lower energy consumption while improving comfort in buildings. Select buildings at our corporate headquarters Energy-Efficient Lighting serve as a pilot location for this test. In North America, we are nearing completion of LED lighting retrofits at 13 large facilities, which will reduce carbon emissions from lighting by 63% per year. At our Añelo Field Camp in Argentina, we completed LED renovations in our offices, then met the need for additional lighting along pathways and parking areas with LED lighting towers that are powered by solar panels and battery storage thereby avoiding almost 40,000 kWh in a year from the electrical grid. We are evaluating another 42 Halliburton sites in North America, Europe, Eurasia, and Sub-Saharan Africa for potential completion of retrofits in 2022. Solar Power As part of an ongoing rooftop solar initiative that includes four major projects in Singapore, India, and California, Halliburton commissioned two new solar projects in Malaysia and Colombia in 2021. At our manufacturing facility in Johor, Malaysia, Halliburton executed a 25-year solar power purchase agreement (PPA) in the first quarter of 2021. We installed and will maintain 2,247 fixed-tilt, roof-mounted solar panels totaling 999,915 kilowatt peak (kWp). This is the largest size solar array that the local regulations permit. The Green Electricity solar array will produce 1,000 megawatt hours (MWh) of As we establish new electricity supply contracts, electricity annually. It has offset approximately 22% of the Halliburton purchases green electricity from the grid facility’s usage from August to December, 2021. when available and feasible. In 2021, we signed two Additionally, at our field camp in Barrancabermeja, three-year agreements for 100% green electricity with Colombia, Halliburton executed a 10-year solar PPA in 12 accounts in Alberta, Canada, and two accounts in the fourth quarter of 2021. We installed and will maintain Pennsylvania in the U.S. 278 fixed-tilt, roof-mounted solar panels totaling 99 kWp. The solar array will produce 228,000 kWh of electricity annually, offsetting approximately 49% of the facility’s current usage. In 2022, we expect to explore similar projects elsewhere in Colombia, as well as in Mexico and Brazil.

Halliburton 2021 Annual & Sustainability Report Environmental 30 E2 Environmental Management We use the Halliburton Management Our Environmental System (HMS) to manage environmental Improvements Sustainability risks and identify opportunities to mitigate Commitments our environmental impact. It encompasses • Establish and achieve waste-reduction targets in our a comprehensive set of policies, business major facilities. practices, and procedures for how we work, • C reate water-use-improvement plans in our major including how to reduce our energy use and facilities located in water-stressed areas. GHG emissions, improve water quality and conservation, use chemicals in environmentally safe ways, decrease waste, protect the quality and biodiversity of our environment, and manage environmental practices in our supply chain. To read about the HMS in more detail, please visit the Halliburton Management System section of our website. 2021 HIGHLIGHTS Facility Certifications Environmental Incidents The HMS, along with all associated processes and The majority of reported environmental incidents procedures, conforms to industry-standard certification are spills that occur at Halliburton facilities and field programs, including ISO 14001 and API RP 75. Individual locations. In 2021, we had no significant environmental Halliburton facilities and PSLs are externally certified noncompliance spill incidents and no significant to ISO 14001, based on business requirements. In 2021, environmental fines. 73 Halliburton facilities held ISO 14001 certifications, representing 17% of our active global properties. Recordable Environmental Incident Rate Environmental Awareness Training Incidents per 200,000 hours worked In 2021, we initiated a campaign to raise awareness of environmental compliance and stewardship. We provided 2019 0.03 our workforce with a training module focused on environmental compliance and reporting. The campaign aimed to ensure that all employees, regardless of their 2020 0.02 roles, understand their impacts on the environment and their stewardship responsibilities. 2021 0.02

Halliburton 2021 Annual & Sustainability Report Environmental 31 Chemical Stewardship We responsibly manage the environmental risks posed by our chemical products and services over their lifecycle. To improve our chemical stewardship processes and systems, the Global Chemical Stewardship (GCS) team collaborated with internal users to launch a new workflow application, the Chemical Request Management System (ChRMS, pronounced as “charms”). The new system allows users to track the progress of requests for compliance purposes. It also helps us balance the protection of intellectual property with the rights of the chemical manufacturer. Together, in one centralized system and with incorporated global master data, these features deliver a higher level of compliance assurance and facilitate smoother workflows for our personnel. In addition, the integration includes our Safety Data Sheets (SDSs) with information about the safe use of chemicals. Our SDSs are available in 37 languages in more than 70 countries and 20 jurisdictions. We keep all information related to global chemical Sustainable Water Initiative stewardship updated and available to users around The 3R initiative at liquid mud plants the world. The development of ChRMS aligns with our aims to accomplish the following: Halliburton 4.0 approach to digitize the value chain and create internal efficiencies. Reduce Reuse disposal volumes non-aqueous along with dilution fluids in other requirements applications and extend their 3R longevity Repurpose waste fluids in applications in which fluid quality is less critical We work with customers to “3R” all fluids to the fullest extent possible — even proactively cleaning, blending, and reusing most feedstock to help achieve habitual environmental conservation. Not only does this practice save water, but it can prevent some of the emissions associated with the manufacture, transfer, and mixing of new fluids and their components.

Halliburton 2021 Annual & Sustainability Report Environmental 32 Water and Effluents We work with our customers to reduce their water usage. Although customers purchase and control the water they use at hydraulic fracturing sites and at wellsites, we provide solutions to assist customers with water usage. Our reported water-usage data includes water used at Company-owned or Company-leased locations, except those locations that include water usage in the lease, and covers our facilities in the U.S. and Canada and most global facilities. Many of our locations have implemented water-reduction and water-recycling projects, particularly those in water- stressed areas. Water Withdrawal Cubic meters 2019 2,351,678 2020 1,345,507 2021 1,478,921 UK In Scotland, the Aberdeen Maintenance and Sperry Drilling departments have tanks that store water previously used in function testing activities until the water can be reused. This eliminates the requirement to use fresh water for every test. Thailand Our water treatment system cleans and separates oil discharge from water. The Thai government allows Halliburton to sell the water to a recycling company. Argentina At the Añelo Field Camp, we built a water-treatment plant that we completed in January 2022. The plant enables us to reuse 88% of the wastewater generated in our washbays.

Halliburton 2021 Annual & Sustainability Report Environmental 33 Waste Reduction At Halliburton, we develop waste minimization and management plans to reduce the amount of waste generated at our offices, workshops, field camps, manufacturing facilities, and wellsites under our control. Our waste-generation data covers all U.S. locations, all manufacturing locations, and any non-U.S. location that has a building footprint larger than two acres (8,092 m²) and that houses those activities identified as having the largest potential for waste generation. As we look to 2022, we are in the process of standardizing and digitizing waste-reduction tools and resources across our facilities to identify waste-reduction opportunities and effectively execute on them. Waste Disposal Metric tons 2019 294,123 2020 342,306 2021 349,843 Argentina In 2021, our collaboration with waste-management providers has resulted in the recycling of 37% of our total solid waste output. We send these materials — which include wood, pallets, cardboard, paper, and large bags — to waste-treatment facilities for processing as raw materials and conversion into other products. UK Our waste contractors installed skids that route hard plastic materials for recycling, in addition to softer plastic materials from packaging.

Halliburton 2021 Annual & Sustainability Report Environmental 34 UK and Africa In Scotland, we diverted 32 metric tons of wood waste including dry timber, used crates, pallets, and solid wood from a biomass plant to a local charity in Aberdeenshire, Wood RecyclAbility. This organization repurposes wood waste to make many beautiful, high-quality products that it sells to the public, such as furniture, various household products, and bespoke products. However, what makes this organization truly special are the opportunities that it provides to its trainees, who are adults with a range of additional support needs. Their work with Wood RecyclAbility gives them a purpose, life skills, wood-working skills, and, in some cases, has led to their full-time employment. In Africa, we repurposed wood from original packaging to build new boxes for material exportation. Brunei Halliburton worked with a local recycling company to convert paper waste into toilet paper. We collect non-confidential paper waste from our Brunei facilities — including from our offices, workshops, bulk plants, vessels, and rigs — and store them at designated recycling bins. On a monthly basis, recyclers collect the material and then transform it into a 100% recyclable toilet paper product. In 2021, Halliburton recycled 300 kilograms of paper.

Halliburton 2021 Annual & Sustainability Report Environmental 35 Biodiversity Our commitment to environmentally sound and sustainable business practices includes minimizing disturbances to the land where we develop our offices, field camps, chemical facilities, and service centers. To support this commitment, we conduct proper environmental due diligence and permitting when establishing new facilities and ensure regulatory compliance through the life of each facility. Additionally, we recognize the inherent value in threatened lands and species, and we evaluate programs and methods to protect sensitive habitats around our locations. Our employees took part in many biodiversity initiatives at our facilities around the world. We planted trees at many of our global sites, including our Coca Base in Ecuador, Añelo Field Camp in Argentina, Saihat facility in Saudi Arabia, Malaysia facilities, and the forests in Cabinda, Angola.

Halliburton 2021 Annual & Sustainability Report Environmental 36 E3 Sustainable Energy Evolution Halliburton provides the world with access to Our Value Creation affordable and reliable energy in parallel with our Technologies and Solutions / work to support the transition to a lower-carbon Continuous Improvement future. To do this, we deploy our world-class Sustainability Commitments technical expertise, resources, and versatile capabilities to develop new technologies that • Lead the industry in innovation and conscientious stewardship of global minimize our environmental impact. Our most resources. significant contribution toward our sustainability • Provide solutions that support decarbonizing goals is to help customers reduce their own our customers’ legacy production base. environmental impact by using our oilfield technologies. To learn about our vast product and service portfolio, please visit the Halliburton website. 2021 HIGHLIGHTS Sustainability in the R&D Process The LIFECYCLE process, which governs new product R&D, incorporates all of our Company’s major functions, including technology, manufacturing, product management, marketing, and operations. We use this process to improve our product and service solutions, mitigate risks, and review project progress at stage gates. Embedded within the LIFECYCLE process is sustainability. At the critical stage gates of product inception, detailed design, and commercialization, we consider the following: • People and environmental safety • Operational footprint • Human capital requirements • Overall product lifecycle • Manufacturing, storage, and transportation costs • Cybersecurity • Emissions during manufacturing and use Coinciding with sustainability reviews at project kickoff, detailed design, and commercialization, our governance board also provides a thorough review of environmental impacts, along with business case, risks, time to market, and product development costs. The insertion of these reviews into the process maximizes the influence of sustainability considerations on product development. PROGRAM SANCTIONING BUSINESS CASE DEVELOPMENT PRODUCTION LAUNCH COMMERCIALIZATION 0 INITIATION GATE 1 GATE 2 APPROVAL GATE 3 RELEASE GATE 4 RELEASE GATE 5 GATE 6 REVIEW STAGE 0 STAGE 1 STAGE 2 STAGE 3 STAGE 4 STAGE 5 ASSESSMENT DEFINITION DESIGN/BUILD/QUALIFY VERIFICATION VALIDATION COMMERCIALIZATION SUSTAINABILITY SUSTAINABILITY SUSTAINABILITY

Halliburton 2021 Annual & Sustainability Report Environmental 37 University Relationships members, and gain experience with Halliburton Landmark software, products, and knowledge base. Sponsored Research Agreements Halliburton facilitates regular, meaningful contact Halliburton engages with major universities in countries between students, industry representatives, and around the world to facilitate the research studies of academics through our STEPS program, and builds advanced-degree students. Our PSL technology groups a collaborative research network with the robust work with students to identify research topics that participation of all parties. address our Company’s technology challenges, along Each year, the STEPS Scientific Advisory Board selects a with the competencies of the specific university. We research theme within which students select a research help define the research scope, gather resources, and, topic of their choosing. The theme for the 2020–2021 on occasion, make financial contributions. Through this academic year was the 21st Century Energy Transition. endeavor, Halliburton uses external competencies to The theme for the 2021–2022 academic year was the advance the R&D goals of our PSLs and, ultimately, to Subsurface Characterization of Energy. improve our products and solutions for our customers as well as our internal processes. In addition to supporting research projects, STEPS hosts a Distinguished Lecture series aligned with the current STEPS Program research theme to encourage more interaction with the exploration and production (E&P) community. Our program, Science and Technology for Exploration and Production Solutions (STEPS), targets master’s-level To learn more about the STEPS program, including how to students at universities who are working on their theses. apply, please visit the STEPS page on our website. We give these students the opportunity to conduct a research project in collaboration with Halliburton and our industry and academic partners. Participating students can conduct research focused on real-world datasets, receive relevant training and mentorship from STEPS team • Drives innovation • Generates intellectual property • Delivers research results ACADEMIA STEPS INDUSTRY • Mentorship and training • Access to data and software • Engagement with industry

Halliburton 2021 Annual & Sustainability Report Environmental 38 Our Technology Highlights Featured here are examples of our technologies that reduce our customers’ emissions and aim to decarbonize the process of oil and gas extraction. Tier 4 Engines and E-Frac We also offer all-electric fracturing capabilities using our second-generation Zeus™ electric pumping unit, Halliburton has the largest fleet of Tier 4-compliant ExpressBlend™ electric blending system, eWinch™ electric engines — both diesel and dual fuel — in operation wireline unit, and an electric Tech Command Center. All in the U.S. and the Gulf of Mexico. Tier 4 is the U.S. this equipment can run on electric power, generated using Environmental Protection Agency’s (EPA) strictest natural gas or taken directly off the grid, for the lowest regulation for nitrogen oxides and particulate emissions. possible emissions profile. This solution also allows for Our Tier 4 dual-fuel engines enable operators to use additional electrification of fracturing locations, such as natural gas instead of diesel fuel as the majority of lighting and water transfer. their fuel source. The option to use field gas minimizes flaring, which reduces emissions and is less costly for our An active focus on our e-frac customers. Because of the way that Halliburton developed capabilities is underway. our technology, we can convert our diesel engines to Tier 4 dual-fuel. In August 2021, Halliburton announced the industry’s North America Industry Leader in EPA first deployment of an advanced e-frac solution with Tier 4-Compliant Diesel Engines Chesapeake Energy Corporation. The project combines our all-electric fracturing spread with VoltaGrid’s power- generation system. By using this technology in its local Percentage of Tier 4 Diesel 2019 2020 2021 field gas network, Chesapeake Energy reduced Engine Penetration emissions by 32% and applied more than 25 megawatts of lower-carbon power generation without sacrificing Hydraulic fracturing pumping operational performance or reliability. This project is a equipment (HHP) that meets 52% 56% 53% major step forward in our customer’s goal of achieving Tier 4 compliance for non-road diesel engine emissions net-zero emissions.

Halliburton 2021 Annual & Sustainability Report Environmental 39 Cementing Products The Cementing PSL has two main focus areas: to reduce the carbon footprint of the solutions that we provide to our customers and to stop fugitive gas emissions for the life of a well. NeoCem™ IsoBond™ Obex™ The NeoCem™ cement system The IsoBond™ cement system Our Obex™ family of compression- reduces the amount of Portland prevents sustained casing pressure set, mechanical packers (Obex cement in the wellbore isolation over the life of a well, which helps GasLock™ packer, V0 rated; Obex barrier by an average of 40% by mass improve well integrity and stop IsoLock™, V3 rated; and Obex Portland. (Portland cement accounts fugitive gas emissions from releasing EcoLock™, V6 rated) enhance well for the majority of the carbon into the environment. The system integrity and therefore prevent footprint in a cementing job, as its accomplishes this through: fugitive gas emissions. By offering a manufacture and transport releases • Low fluid loss and fast transition powerful mechanical barrier, Obex™ air pollutants.) times to prevent the flow of gas packers improve zonal isolation and through cement as it sets. mitigate sustained casing pressure to avoid failures leading to annular • Enhanced shear bond, in which gas migration. the ability of the cement to adhere to steel casing improves by as much as 40% compared to other cementing systems. • Reduced cement permeability by more than 70% compared to other cementing systems, which prevents gas and other wellbore fluids from migrating through the cement after it sets.

Halliburton 2021 Annual & Sustainability Report Environmental 40 Baroid Production Solutions ® BaraHib™ Gold WaterWeb ® BaraHib™ Gold high-performance Our WaterWeb conformance service 90% with little to no damage to water-based mud eliminates the gives operators the ability to lower hydrocarbon permeability. By requirement for the containment, the treatment and disposal costs reducing the water column, the transport, and treatment of oily of produced water, along with the WaterWeb® service improves the cuttings onshore. Fluid makeup associated environmental impacts. natural lift to residual oil and gas. To accomplish this, the WaterWeb® includes approximately 15% It also helps prolong and sustain industrially produced materials service uses a polymer chemistry to production by enhancing (except water and barite) by volume, impede water flow while enhancing reservoir drainage. compared to approximately 60% in hydrocarbon flow to the wellbore As an example of this technology’s a typical non-aqueous fluid. With in any type of reservoir — including capabilities, Halliburton deployed the trackable inhibitor technology, sandstone and carbonate formations. WaterWeb® service in an offshore BaraHib™ Gold fluid also has a This technology absorbs into the rock carbonate reservoir, where it reduced longer run life than typical water- surface and creates resistance that the water cut by 22% and increased based fluids. holds water back while allowing oil hydrocarbon production to more than and gas to pass freely, decreasing 600 barrels of oil per day. water permeability by more than 95% regained 97% reduction to oil permeability water permeability d 600 m , y t bili a 400 e 380 m r e P e v i t c e f f E 16 Oil Water Before treatment After treatment

Halliburton 2021 Annual & Sustainability Report Environmental 41 Reduction in Battery Use To improve the sustainability of operations, Halliburton aims to eliminate the use of lithium batteries in our downhole tools. Batteries require complex logistics and safety precautions, as well as recycling. The development of solutions to generate downhole power or to continuously provide power from the surface will make a step change toward reducing our environmental footprint. Because of this, many of our PSLs, including Sperry Drilling and Production Solutions, focus on technology development that does not rely on battery power. As an example, a downhole generator powers our iCruise® rotary steerable system, removing the batteries that we used in our previous generation of rotary steerable technology. One of the design goals of our new iStar™ intelligent drilling and logging platform was to reduce the number of downhole batteries that we used. In 2022, we will deploy an additional turbine-based generator to enable further reductions in battery use. ® Our SPECTRUM FUSION real-time hybrid coiled tubing services integrate fiber optic and electric communication and power to eliminate battery use. Doing so results in operations not limited by power or time constraints. The system also combines intervention and diagnostic capabilities and is fully compatible with mechanical and wireline tools. This unlimited flexibility lessens logistical constraints. Additionally, we have invested in a company that produces ultra-capacitators, a rechargeable solution that delivers the power required for our challenging downhole applications.

Halliburton 2021 Annual & Sustainability Report Environmental 42 2021 Technology Sustainability Matrix Additional portfolio e s d t G e e i y l s d t c items can be seen on - GH n uc e l li y e n o d i c f i e b e i s d s ro uc u f l l e o ns/ e l u a l Halliburton.com. l o u r p d l f r r e ng p i c f t e s i o d o i o s u n t ro e s dur / w d s s d m i s c s r d n f n e t i o r l a p r o e n a n m r a e t e o t f p e d ua w t ou f f h ial g s e r p r he d s s s r e at a n r o id e e i u a s s d o hig e s c i er e c v v t y t u y n i s o us / s w g a / u t o s b n t d o s r do c n a e i i nd i i e u t r s e d r t d m y g s o al quir do a u a t a m o g i u l u e en s o rr r e u t f d c o n d e os i n e / r u r i r / do mp ener sp e t oi / r d a m t e haz r i y i l y te p n p v e f af i e - a fe c t r r b t z e in s rem n t i h l i e e i i ble i l l er u o s a s s a a h r s n az o li y i e t r o p k u i a c r c b e t s c t t i f t t a f j t l u u no a q no h a w r e e e fo e y f w f hs/ o : e f f t t g r s at o re ns t o e l re r c n r s w b s n o ial u i f r o o o e e e s e n m o o c e o e oial / l o ns s a i t i l f i r nc o ng p l i a v e v t n s i m m e e a s i me me rene a o l o s i a e s s u c s l t s s e a t e r p r b r k r i ctr u l t a i l a u u s n r r t s e l a i l l ans e e a c l o p p o u o o l o o p u o o o r s s o n l m na m D P Em F E V V m S N Sp C V V T U U H C I a I E I W ARTIFICIAL LIFT Reduction or Elimination Improvement GeoESP® Tiger Shark III® BAROID BaraECD® BaraHib™ Gold BaraXcel™ CEMENTING AirGlide™ Asset Light-Remote Control Silos Autonomous Cementing Operations IsoBond™ Obex™ Tuned® Defense™ E Cement Spacer WellLife® COMPLETION TOOLS ® eCompletions™ Clariti ® ® SmartWell eMotion MultiLateral FlexRite® SmartWell® Fuzion™ DRILL BITS & SERVICES Articulating Gauge MULTI-CHEM APX™ — Analyzing Performance eXecution Ferrogone™ FeS Inhibitor FightR™ LX-18 Triple-Combo Inhibitors PRODUCTION ENHANCEMENT Dual Fuel Tier 4 Zeus ™ PRODUCTION SOLUTIONS HalKleen™ SafeGrip™ WaterWeb® TESTING & SUBSEA Single Trip Perf & Surge WIRELINE & PERFORATING RTRAC StrataXaminer™

Halliburton 2021 Annual & Sustainability Report Environmental 43 Digital Transformation Halliburton deploys digital technology across all Halliburton 4.0 business lines and geographies to improve efficiencies and outcomes. Many of these capabilities reduce GHG In 2021, Halliburton 4.0 accelerated our digital approach emissions through optimization and efficiencies and over the well lifecycle including subsurface, well provide high-quality data for enhanced decision-making construction, reservoir and production, and our and continuous improvement. own enterprise. Digital unlocks the potential to structurally lower costs, Our deployment of software, hardware, AI, machine shorten time to first oil, increase efficiency in exploration learning, and sensors gives us access to more data and and production, and enhance performance across the operational insight than ever before. This data allows entire value chain. us to improve project planning, design, and execution; monitor and optimize operations in real time; enhance In 2021, the Company made great strides in our digital decision-making; shift to automated controls and remote transformation by developing, deploying, and maturing operations; make data more accessible to all business Halliburton 4.0. units; and advance data storage and data analytics capabilities — all while enabling a more collaborative, Well Construction 4.0: connected workforce. Digitally Transforming the Well Halliburton 4.0 increases efficiency, saves costs, and Construction Lifecycle mitigates health and safety risks associated with manual labor. It also reduces our environmental impact through With digitally enhanced well construction, we the elimination of paper waste and the reduction of reduce costs and planning time and optimize personnel required to work at wellsites, which means well design and placement to improve drilling fewer emissions associated with transportation, lodging, performance for a safer, more productive well. and sustenance on both land and offshore settings. Well Construction 4.0 incorporates all of Launched in the first quarter of 2021, our new Halliburton’s digital technologies and allows cloud-based platform, Real-Time-as-a-Service (RTS), integration and collaboration between our well uses modern digital technology to stream real-time data engineering applications, such as Digital Well to all employees and customers who have subscribed to ® these feeds and are authorized to receive them. Program and Digital Well Operations, as well as any third-party applications that an operator or A customer in Norway, the first operator to adopt RTS, contractor may use. These technological advances uses the platform to monitor six offshore rigs. In the enabled us to reduce well planning and design time customer’s experience, RTS is 83% faster than our legacy by up to 80% in the North Sea. real-time system, with uptime reliability of nearly 99.9%. Well Construction 4.0 automates many drilling Equally important, RTS is less energy intensive than its processes. In a mature field in the Middle East, predecessor, relying on cloud computing that can be Halliburton improved drilling performance and scaled up or down based on consumer demand. shortened drilling time by 43% by integrating our As a result of using RTS, Halliburton retired a number of Cerebro® In Bit Sensing, Logix™ Automated Drilling Solution, N-Flow™ 325 filter cake breaker, Pason on-premise data centers that had dedicated services and AutoDriller, and project management services. reduced personnel required to keep the legacy real-time system functional. Our goal is to convert 100% of our Additionally, with our remote operations, Well real-time requirements to the RTS platform in the first Construction 4.0 helps reduce the number of half of 2022. people required on-site. For the first two sections For more information about Halliburton 4.0, of a job at an offshore rig in Southeast Asia, please visit the Halliburton 4.0 page on our website. Halliburton decreased the number of people at the wellsite by 21%, which also reduced helicopter rides and international commercial flights to the rig.

Halliburton 2021 Annual & Sustainability Report Environmental 44 Halliburton Landmark software, Landmark adapts E&P workflows to consider the parameters that are important for safe CO storage, 2 To support Halliburton 4.0, Halliburton Landmark offers identify suitable aquifers, screen areas for further a suite of geoscience software products that enable investigation, and model them using technologies that our customers to explore and produce hydrocarbons. In we developed to understand the injection and migration 2021, Halliburton shifted Landmark products further into of captured CO . Our technology helps customers answer 2 the sustainability space. Here are a few examples of our critical questions such as: products that support the world’s energy transition: • Where can we store CO ? 2 Neftex® PROSPECT software, which we developed in • How much CO can we inject, and can we inject CO 2 2 2021 and will launch in the first quarter of 2022, supports at a sufficient rate? critical mineral exploration. Electrification of transport • Can we store it safely? and industrial processes is a key component of global decarbonization ambitions. However, this initiative • What is a site’s storage capacity over its lifetime? requires a vastly increased supply of metals and minerals • Will the CO remain in the geological storage tank for success. Renewed investment in discovering 2 over time without leaking? additional resources will be the key to meet this demand. We also focus our efforts to enhance our iEnergy® Landmark adapts proven oil and gas exploration workflows to aid in the hunt for minerals that are critical platform, the industry’s first hybrid cloud environment to the energy transition. dedicated to E&P. By using machine learning, we can better manage and mitigate carbon emissions from Storage of carbon dioxide (CO ) in ancient rock strata is set our operations. 2 to become a major contributor to emissions reduction. We can identify suitable aquifers for this purpose by using a For more information on Landmark, please visit the similar approach to how we uncover hydrocarbon-bearing Landmark page on our website. ® ® strata. With Neftex Predictions and DecisionSpace 365 This database is included in Neftex® PROSPECT software. Areas in color denote when Earth’s tectonic features were active. Because many critical minerals are found in zones of active tectonism, this information can help to identify areas for closer attention in the search for specific minerals.

Halliburton 2021 Annual & Sustainability Report Environmental 45 Support for Renewable Energy Sources In addition to using our digital capabilities, Halliburton applies our existing technologies to the renewable energy space for a greater environmental impact. Carbon Capture, Utilization, and Storage Halliburton actively participates in the carbon capture, utilization, and storage (CCUS) industry, and has developed technologies to support carbon transport and storage projects. Our capabilities include geological storage site selection and development, in addition to well repurposing, construction, and monitoring, and pipeline and subsea construction and maintenance. In 2021, Halliburton applied a unique, machine learning- based 3D model for a Japanese company to estimate the availability of pore space over large areas for CO2 storage. This model increased operational efficiency, with a fivefold reduction in time spent compared to conventional approaches, along with increased accuracy. Geothermal For decades, Halliburton has offered our advanced In Indonesia, which is the world’s top geothermal market, technologies and experience to customers developing Halliburton has supported geothermal activity for more complete geothermal solutions around the world. Our than 30 years. In this time, we have drilled and produced products and services address every aspect of developing more than 220 wells, and completed approximately 40 a geothermal energy production facility, including wells with Halliburton Project Management’s Integrated project management, drilling, cementing, fluids, logging, Services. In 2021, Halliburton continued to contribute completions, stimulation, and geofluids transfer. to the Sarulla Geothermal project. For this project, we have worked with a market leader for more than 15 Geothermal energy demand has expanded to more years to provide drilling and cementing services in the shallow-source, lower-heat applications for heating development of this clean, renewable energy source. and cooling. For electricity generation, the geothermal During this time, we helped our customer produce clean market has expanded to deeper, higher-heat sources. electricity from geothermal wells safely, efficiently, and Although these geothermal sources are much more cost-effectively, and enabled a larger number of wells to efficient in generating electricity, they require produce from a single pad for less environmental impact. advanced geothermal systems to overcome technical challenges, and Halliburton is working to service these emerging markets.

Halliburton 2021 Annual & Sustainability Report Environmental 46 Halliburton Labs Halliburton Labs gives early-stage, clean-tech companies access to our world-class facilities, technical and scientific experience, and business network. Halliburton Labs is a collaborative environment in which entrepreneurs, academics, investors, and industrial labs come together to advance cleaner, affordable energy. Halliburton Labs also is a clean-tech accelerator. Participating companies take part in a 12-month program in which they can benefit from our vast, global resources that include knowledgeable and experienced personnel who cross a range of disciplines as well as an established infrastructure. Halliburton Labs helps these companies with a variety of services, such as: • Introductions to investors and potential customers • Development of supplier networks, using our broad For Halliburton, other benefits of Halliburton Labs include: supply base • Design of manufacturing processes, with a key focus • Strategic value in working closely with people, on HSE companies, and new technologies with the potential for • Cost reductions for manufactured products high growth as the energy industry changes While some offer a corporate venture capital model, • Ability to understand the development of new value Halliburton is unique for our founder-friendly environment chains associated with the energy transition and for granting companies regular access to our • Opportunity to evaluate how we can best use our core corporate campus, industrial facilities, executives, and competencies to accelerate cleaner, affordable energy subject matter experts. These elements are essential solutions and earn returns in new markets to reduce friction points, enhance collaboration, and increase the probability of each company’s success. Halliburton Labs is a low-risk, low-capital endeavor for us, and yet this initiative is critical for delivering the support Halliburton Labs is a unique that participants require to progress beyond their initial front door to engage with the years and to make a positive, lasting impact on the world around us. innovative companies and people who are ready to scale solutions for clean, affordable energy. To learn more about this endeavor, please visit the Halliburton Labs website.

Halliburton 2021 Annual & Sustainability Report Environmental 47 Application Process Halliburton Labs is an open, non-exclusive program. The application to participate is always available on our website. Three times per year — January, May, and September — we accept applicants into our program, which lasts for one year. After companies submit their applications, we evaluate them based on factors such as whether their technology Curriculum has progressed sufficiently and whether their business requirements align well with our capabilities, so that we Over a 12-month period, we open our doors to can offer them the most value from this experience. companies for unlimited education, mentorship, and consulting. We invite a narrow list of applicants to our Finalists’ Pitch Day, which involves a seven-minute business Our structured curriculum covers the core topics that pitch by company leaders followed by a live Q&A any entrepreneur must address while their business with our panel. From there, we select a handful of scales. Meanwhile, Halliburton is available to meet with companies to begin the program. We are selective so participants about more unique, company-specific that we can give each participant at Halliburton Labs requirements and priorities. the high level of attention and collaboration they deserve.

Halliburton 2021 Annual & Sustainability Report Environmental 48 Participating Companies Since we launched Halliburton Labs in 2020, we have attracted and onboarded many qualified and outstanding companies that are on the cusp to become game changers in their industries and our collective clean energy future. NANOTECH, INC. HELIX POWER SURGEPOWER MATERIALS Houston, TX Somerville, MA New Braunfels, TX Thermal insulation and Flywheel energy storage High-quality graphene fireproofing nano-coatings technology from renewable feedstock ENEXOR BIOENERGY SOLVCOR IONADA Franklin, TN Princeton, NJ Toronto, Ontario, Canada On-site bioenergy conversion Liquid additive that reduces Carbon capture for small- to systems for waste energy consumption and mid-sized industrial emitters CO emissions MOMENTUM TECHNOLOGIES 2 ICARUS RT Dallas, TX ALUMINA ENERGY San Diego, CA Lithium battery recycling Los Angeles, CA Power boosting and energy technology and rare earth recovery Thermal energy storage storage for solar PV systems OCOCHEM PARASANTI STRAYOS Richland, WA Austin, TX Buffalo, NY Carbon dioxide-to-formate Edge computing hardware Uses AI to sustainably conversion technology and software solutions extract raw minerals 2021 Participating Company Achievements Momentum Technologies raised $20 million in a round led by Freestone. Enexor raised $10 million in a round led by BorgWarner. Enexor gained acceptance to the Google Climate Change Program and the 100+ Accelerator program. Alumina Energy joined the Shell/National Renewable Energy Laboratory (NREL) Game Changer program. NanoTech won the 2021 Energy Transition Award presented by InnovationMap. Rice University named Halliburton Labs Advisory Board Member Reginald DesRoches as its next president. The advisory board of Halliburton Labs has added two new* members: • Reginald DesRoches, Rice University’s Provost and • Jennifer Holmgren, CEO of LanzaTech* Professor of Civil and Environmental Engineering, • Maynard Holt, CEO of Veriten* and Mechanical Engineering • Jeffrey A. Miller, Chairman of the Board, President • John Grotzinger, the Fletcher Jones Professor of and Chief Executive Officer of Halliburton Geology at the California Institute of Technology, and Chair of the university’s Division of Geological • Dale Winger, Managing Director of Halliburton Labs and Planetary Sciences • Walter Isaacson, the Leonard Lauder Professor of American History and Values at Tulane University in New Orleans, Louisiana

Halliburton 2021 Annual & Sustainability Report Environmental 49 What Our Participants Say [Halliburton is] not just providing None of anyone’s climate change curriculum and courses, they are ambitions get done unless you build providing physical infrastructure for something big that works and is cost start-ups to go from their garages to efficient, and Halliburton has experience production. Halliburton Labs is the next in doing that. Halliburton Labs can tailwind for start-ups. benefit you if (1) you are serious about Access to Halliburton Labs’ resources manufacturing products and bringing and world-class facilities will help them to market, (2) you want partners accelerate our growth and deliver who can assist, critique, and support our transformative line of products. what you are doing, and (3) you want Through this collaboration, we intend to to expand your horizons. Halliburton fundamentally shift the fireproofing and is looking forward and helping build thermal insulation markets toward more the future. effective and environmentally The valuable industrial expertise and friendly solutions.” network of Halliburton Labs will support Mike Francis our build, deployment, and demonstration CEO, NanoTech, Inc. of a full-size commercial-grade system — the next step on our commercialization journey toward an industrial-scale plant.” Todd Brix CEO, OCOchem Our goal is to make SurgePower Materials the key enabler of the forthcoming graphene age with plant-based graphene as an essential component of many new We are receiving tremendous interest technologies. Our strategic collaboration from industrial emitters around the world with Halliburton Labs allows us to for modular carbon capture systems. leverage their world-class engineering Halliburton Labs’ engineering, supply expertise to rapidly scale our production chain expertise, and global network and accelerate the adoption of new provide the ideal launching platform for graphene-based solutions.” us to scale our business to meet demand. Dr. Michael Opoku Halliburton Labs has opened a lot of CEO, SurgePower Materials doors for us, virtually every touch point.” Edoardo Panziera CEO, Ionada Halliburton Labs is the ideal environment to scale our cutting-edge lithium battery recycling technology. We are excited to We are honored to join Halliburton tap into Halliburton Labs’ engineering Labs. Their broad global network and and supply chain expertise and global deep manufacturing expertise will business network to accelerate assist Enexor in meeting its significant Momentum to the forefront. Participation worldwide demand while making a in Halliburton Labs has signaled to significantly positive environmental the market that we are an impact. This is a major step forward in established company.” our worldwide launch.” Preston Bryant Lee Jestings CEO, Momentum Technologies Founder and CEO, Enexor BioEnergy