Several owners of long-haul operations disagree.
UPS turns to LNG, not CNG, for natural gas fueled long-haul trucks
http://knowledgeproblem.com/2011/02/25/ups-turns-to-lng-not-cng-for-natural-gas-fueled-long-haul-trucks/
LNG Vehicles Are In It For the Long Haul
http://members.questline.com/Article.aspx?articleID=20703&accountID=1863&nl=12731
Volvo Trucks First to Market LNG Powered Truck for Long-Haul Operations
http://www.theautochannel.com/news/2011/05/31/534869-volvo-trucks-first-to-market-gas-powered-truck-for-long.html
Trucks Run On Natural Gas In Pickens Clean Energy Drive: Freight
http://www.bloomberg.com/news/2012-02-29/trucks-run-on-natural-gas-in-pickens-clean-energy-drive.html
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Helping to build the infrastructure, Clean Energy Fuels (T. Boone Pickens) is building 150 stations across many of US highways.
Natural Gas Filling Stations: Few and Far Between
http://online.wsj.com/article/SB10001424052702304707604577422252404819664.html
In my opinion, we will see a build up of both CNG and LNG retail, often at the same highway truckstop location.
LNG will become a fuel of choice for long-haul, marine and locomotive. CNG will be used more by residential and light commercial.
Shell is investing in LNG for Marine transport.
Shell to make LNG available as marine fuel, starting in U.S. Gulf market
http://www.marinelog.com/index.php?option=com_content&view=article&id=1306:2011sep00072&catid=1:latest-news&Itemid=195
Wärtsilä and Shell sign co-operative agreement to promote use of LNG as a marine fuel
http://www.wartsila.com/en/press-releases/wartsila-and-shell-sign-co-operative-agreement-to-promote-use-of-lng-as-a-marine-fuel
I think in the long run, the need for cryogenics for LNG will be a a problem for highway usage. Of course, if you have LNG, then providing CNG is trivial. The reverse is "possible" but more difficult.
We'll just have to see how the market shakes out.
"LNG will become a fuel of choice for long-haul, marine and locomotive. CNG will be used more by residential and light commercial.
I certainly agree about marine and locomotive. I just see the split point at a somewhat different spot than you do. I certainly think that LNG is definitely not an option for passenger/light vehicle use.