Clean Energy, Mansfield Team up for Natural Gas Fueling
Clean Energy Fuels Corp. and Mansfield Energy Corp. announced a strategic partnership to offer customers what they say will be the most comprehensive solution in the compressed natural gas fuel industry.
Clean Energy Fuels Corp. and Mansfield Energy Corp. announced a strategic partnership to offer customers what they say will be the most comprehensive solution in the compressed natural gas fuel industry.
Mansfield Gas Equipment Systems has ongoing CNG service and operations contracts with 43 locations as well as 20 new CNG sites currently under development in the waste, transit, and municipal fleet sectors. These are typically "behind the fence" type facilities, owned by the fleet using it, rather than a retail operation. This portfolio will be combined with the 348 CNG and liquefied natural gas (LNG) fueling stations Clean Energy currently owns, operates or supplies.
"Recent announcements by UPS, Waste Management and others demonstrate the transition of natural gas as a vehicle fuel is happening," says Andrew Littlefair, CEO of Clean Energy. "We've spent the last year building out our retail truckstop locations with our partner Pilot Flying J, predominanly LNG, to fuel long-haul, over-the-road trucking, and with the advent of the 12-liter natural gas engine, we're begining to see that take off.
"This is the other piece, often more urban, at distribution centers, behind the gate," Littlefield says, "refuse companies, freight haulers. It's a little harder to see. It will often be more CNG than LNG."
In fact, he says, Clean Energy is beginning to build some fueling centers in distribution centers as part of its America's Natural Gas Highway project, so the two areas will overlap.
Littlefair said the deal also will help the two companies target fleets that haul bulk petroleum as potential customers.
Sales teams from both companies will offer Clean Energy’s natural gas fueling station construction and operational services to current and potential customers. These services will be supported by Mansfield’s large-scale fuel supply capabilities and Gas-2-Gallons fuel management system.
“We want our customers to have the best solution possible for fueling with natural gas,” said Michael Mansfield, CEO of Mansfield. “We bring scale in commodity supply, risk management, and transaction processing. Clean Energy has scale in design, engineering and operations. Bringing these strengths together for our customers provides the benefits of proven technology coupled with large-scale operating efficiencies to provide the best value and simplest path to natural gas adoption in the market today.”
Mansfield notes that his company has built close to 180 natural gas fueling sites over the last several years. "We have a lot of new construction going on today, but we think certainly we're in the early stages of growth and what we're going to do from here is going to be exponential."
More Fuel Smarts

Lessons Learned About Alternative Fuels: Start Small, Stay Flexible
Practical advice on adopting alternative fuels and ZEVs from HDT's 2026 Top Green Fleets, from renewable diesel and natural gas to electric trucks.
Read More →
Kempower Adds Flex EV Charger to Help Support Transition to Megawatt Charging
The Kempower Mega Satellite Flex has both a CCS and MCS connector, allowing operators to serve both types of heavy-duty vehicles.
Read More →
Hino Adds Electric Class 6/7 Truck
Hino says the Le Series is an important step in the company's efforts to reduce environmental impact and support its customers’ sustainability goals.
Read More →
Can Multi-Speed EV Transmissions Solve Heavy Trucking’s Biggest Electric-Vehicle Problems?
A startup called Sigma Powertrain believes purpose-built multi-speed gearboxes can boost efficiency, reduce battery size and improve gradeability for heavy-duty battery-electric trucks.
Read More →
Hendrickson Debuts Electraax E-Axle for Medium-Duty Trucks
Developed with Driventic, Hendrickson's new integrated e-axle is designed to improve efficiency, reduce weight, and extend range in Class 6-7 EV applications.
Read More →
50 Ways Fleets Can Cut Fuel Costs Now — Without Buying New Trucks
Fuel savings don’t come from one big change. They come from dozens of small ones. Here’s how leading fleets are stacking gains across drivers, routing, maintenance, and more.
Read More →
Top Green Fleets 2026: How Fleets Are Reducing Emissions in the Real World
What works in sustainable trucking today? Heavy Duty Trucking's Top Green Fleets are finding practical ways to cut fuel use, reduce emissions, and keep freight moving.
Read More →
California Launching $1 Billion Electric Truck Rebate Program
CARB says the California Clean Fuel Reward program will begin offering point-of-sale rebates of up to $120,000 for electric commercial trucks starting June 26.
Read More →
Mack Unveils EPA 2027-Compliant MP13 Engine With More Power, Better Fuel Economy
Along with unveiling its EPA 2027-compliant MP13 engine, Mack outlined powertrain changes across its Class 6-8 lineup, including new Cummins-based X10 engines.
Read More →
How Volvo’s New D13 Engine Meets EPA 2027 Emissions Without Sacrificing Power or Fuel Efficiency
Volvo says advances in combustion and aftertreatment helped its new EPA 2027 D13 engine avoid the fuel-economy penalties many once expected from tighter NOx emissions limits.
Read More →
