Whether compressed natural gas or liquified natural gas takes over in the transportation sector, Clean Energy Fuels (NASDAQ:CLNE) has you covered. It has been working closely with companies like General Electric (NYSE:GE) and the joint venture between Cummins (NYSE:CMI) and Wesport Innovations (NASDAQ:WPRT) to expand the availability and feasibility of this technology. Because of this, major corporations like United Parcel Service (NYSE:UPS) aren't the only ones able to take advantage. Check out the short clip below to find out why.

Thinking about buying a new car? The Motley Fool has your back

This segment is from Tuesday's edition of "Digging for Value," in which sector analysts Joel South and Taylor Muckerman discuss energy and materials news with host Alison Southwick. The twice-weekly show can be viewed on Tuesdays and Thursdays. It can also be found on Twitter, along with our extended coverage of the energy and materials sectors @TMFEnergy.