Under a memorandum of understanding, the companies will co-develop hydrogen-fueling stations and explore the use of renewable natural gas, according to a statement Thursday. Financial terms of the agreement weren't disclosed. 

"Today marks another important step forward in Nikola's stated energy infrastructure plans and its focus on providing hydrogen fueling services to customers," Pablo Koziner, Nikola's president for energy and commercial operations, said in the statement.

Nikola last month was forced to slash the delivery projection for its debut electric big rigs in half to no more than 50 vehicles because of persistent supply-chain issues. It plans to build its first hydrogen-powered truck in 2023. The Phoenix-based company meanwhile is attempting to distance itself from founder Trevor Milton, who faces federal charges that he made false statements to investors.