This year was an important one for Clean Energy Fuels (NASDAQ:CLNE), as the company continued to grow, making important progress as it works to disrupt the world of transportation fuels. In this video, contributor Aimee Duffy talks to Tyler Crowe about the important year that Clean Energy had, including signing a big deal with UPS (NYSE:UPS) and growing in China. Ultimately, Aimee thinks the company's contribution to American energy independence is more than enough to put it on her year-end list of favorite energy stocks.

Fool contributor Aimee Duffy has no position in any stocks mentioned. Fool contributor Tyler Crowe has no position in any stocks mentioned. The Motley Fool recommends Clean Energy Fuels and United Parcel Service. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.