[marron]

Drawbacks to CNG vehicles include the availability of fueling stations. The natural gas filling stations that are available in the U.S. tend to be concentrated in areas where commercial fleets of CNG vehicles exist; buses and trucks are the biggest market for CNG today.

That tells me that the natural market for natgas vehicles is commercial fleets in urban areas.

[thackney]

That is where the market has seen the most growth.

But those will eventually create a bigger fuel delivery market for the rest of us.

[Squawk 8888]

Precisely. The biggest market for propane here is taxis.