Caterpillar-EQT and Cleveland Brothers Showcase Hydrogen Fuel Blends for Natural Gas Drilling Rigs

By March 31, 2023 6   min read  (990 words)

March 31, 2023 |

Fuel Cells Works, Caterpillar-EQT and Cleveland Brothers Showcase Hydrogen Fuel Blends for Natural Gas Drilling Rigs

Irving, Texas – Caterpillar Inc. (NYSE: CAT) today announced the results of a hydrogen demonstration project commissioned by EQT Corporation (NYSE: EQT), the largest producer of natural gas in the United States, which evaluated the performance of a land drilling power module fueled by varying blends of diesel, compressed natural gas (CNG) and hydrogen.

As part of the Caterpillar commitment to build a better, more sustainable world, experts from Caterpillar worked with EQT and Cat dealer Cleveland Brothers to design and manage a bench test and three-week demonstration. Two wells were drilled with a fuel consisting of hydrogen blended with CNG supplied by Certarus Energy. The demonstration, which was conducted on Patterson-UTI’s land drilling rig in Greene County, PA and involved utilizing a 1 MW Cat® 3512C land drilling module with dynamic gas blending (DGB™) technology, confirmed the performance of hydrogen as a viable fuel across a series of steady-state and transient operational test points. The use of hydrogen blended with CNG also enabled a reduction in carbon dioxide emissions.

The project identified areas for future development, including the evaluation of the long-term effects of hydrogen combustion on engine components, acceptable hydrogen limits for broader deployment, hardware and software customization, and the identification of applicable regulatory certifications.

Caterpillar Oil & Gas is ready to support the oilfield of the future, and understands that operations will require more power, more up time and more insight. This test highlights the support and focus from Caterpillar to provide customers with a customized solution to help them meet their environmental, social and governance (ESG) goals.

EQT has a long-standing commitment to ESG and has pledged to achieve net zero greenhouse gas (GHG) emissions from production segment operations on a Scope 1 and Scope 2 basis by or before 2025. This recent project is just one of several ESG initiatives designed to help EQT advance towards reaching that goal.

“As an operator of choice focused on delivering long-term value for all our stakeholders, we have embraced our role as a catalyst for transforming technology, culture and environmental performance, and this demonstration project was an important step forward in understanding the viability of hydrogen as a fuel in a production environment,” said Jared Lowery, Principal Drilling Engineer at EQT. “For decades, we have depended on the reliability, durability and consistency of Cat power solutions at our production sites, which is why we selected Caterpillar and Cleveland Brothers to spearhead this demonstration project on our journey toward a reduced carbon future.”


The demonstration project is the latest in a series of initiatives across the Caterpillar enterprise to develop and commercialize hydrogen-fueled power solutions. In May, Caterpillar announced a project with District Energy St. Paul to demonstrate a 2.0 MW combined heat and power (CHP) system fueled by various combinations of hydrogen and natural gas.

Caterpillar has begun offering demonstrator Cat G3516H generator sets capable of operating on 100 percent hydrogen, including fully renewable green hydrogen, on a designed-to-order basis. Additionally, Caterpillar offers commercially available power generation solutions from 400 kW to 4.5 MW that can be configured to operate on natural gas blended with up to 25 percent hydrogen.

“Caterpillar is a trailblazer in the use of hydrogen and other lower carbon fuels for power solutions across numerous markets and applications,” said Matt O’Sullivan, Caterpillar Oil & Gas general manager. “Our collaboration with EQT and Cleveland Brothers shows how we can support our customers in the energy markets by reducing their environmental impacts and helping them lead their industries in the energy transition.”

Caterpillar started manufacturing engines for the oilfield in the 1930s and is now a global leader in intelligent power solutions. Caterpillar is focused on delivering outcome-driven solutions that keep oil & gas operations powered while helping our customers meet their ESG goals every step of the way. More information is available at:

Fuel Cells Works, Caterpillar-EQT and Cleveland Brothers Showcase Hydrogen Fuel Blends for Natural Gas Drilling Rigs

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About EQT Corporation:

EQT Corporation is a leading independent natural gas production company with operations focused in the cores of the Marcellus and Utica Shales in the Appalachian Basin. We are dedicated to responsibly developing our world-class asset base and being the operator of choice for our stakeholders. By leveraging a culture that prioritizes operational efficiency, technology, and sustainability, we seek to continuously improve the way we produce environmentally responsible, reliable, and low-cost energy. We have a longstanding commitment to the safety of our employees, contractors, and communities, and to the reduction of our overall environmental footprint. Our values are evident in the way we operate and in how we interact each day – trust, teamwork, heart, and evolution are at the center of all we do. Learn more at

About Caterpillar:

With 2022 sales and revenues of $59.4 billion, Caterpillar Inc. is the world’s leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. For nearly 100 years, we’ve been helping customers build a better, more sustainable world and are committed and contributing to a reduced-carbon future. Our innovative products and services, backed by our global dealer network, provide exceptional value that helps customers succeed. Caterpillar does business on every continent, principally operating through three primary segments – Construction Industries, Resource Industries and Energy & Transportation – and providing financing and related services through our Financial Products segment. Visit us at or join the conversation on our social media channels at

About Caterpillar Oil & Gas:

Caterpillar Oil & Gas, with headquarters in Houston, Texas, consolidates all the sales and service activities for Caterpillar Inc.’s oil and gas power solutions. Since the 1930s, Caterpillar has manufactured engines for the oilfield and today provides premier power solutions with outputs from 31 to 16,000 kW.  The sales and service network includes more than 2,100 dealer locations world-wide dedicated to support customers in the drilling, production, well service and gas compression segments. More information is available at:


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