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.