Cummins (CMI) and Liberty Energy (LBRT) announced that the industry’s first natural gas variable speed, large displacement engine to power ...

Liberty Energy and Cummins partner to deploy industry's first hydraulic fracturing platform powered by natural gas engine, ...

Cummins Inc. (NYSE: CMI) and Liberty Energy Inc. (NYSE: LBRT) (“Liberty”) today announced that the industry’s first natural ...

Liberty Energy Inc. and Cummins Inc. are deploying the natural gas large displacement engine developed in a partnership ...