Very Creative! I'm pretty open with this contest because I'm not sure exactly what I want. I love the overall feel and layout. I like the flame/drop in the middle, but don't really want to see a flame in the logo. With the kind of CNG services we offer, we don't really want to see a flame.
Thanks for the new entries! I like the direction your going with it. I still like your original concept the best. It's very clean. It would be a contender if not for the flame. I would still love to see more designs communicating the "green/environmental" aspect of CNG. Thanks!
I like 60. Possibly reverse the coloring in the sphere. Make the blue outside a globe w/ a green inside. Not sure about the leaf. At least not that big. Let me think about it. :-)