Westport Innovations Inc. (USA) (NASDAQ:WPRT) designs natural gas burning engines for a variety of vehicles. The actual large scale production is done by the likes of Cummins Inc. (NYSE:CMI) or other collaborators.

Natural gas vehicles, or NGVs, hold tremendous promise for both the U.S. and the world's future. Not only is natural gas significantly cheaper than oil on an energy-equivalent basis right now, vehicles running on liquefied natural gas (LNG) or ...

VANCOUVER, April 25, 2013 /PRNewswire/ - Westport Innovations Inc. (TSX:WPT / NASDAQ:WPRT), the global leader in natural gas engines, announced today that it will disclose its financial results for the first quarter ended March 31, 2013 on Thursday ...

Monro Muffler Brake Inc. (NASDAQ:MNRO), Westport Innovations Inc. (NASDAQ:WPRT), Hasbro Inc. (NASDAQ:HAS), and Kraft Foods Group, Inc. (NASDAQ:KRFT) Added to Equity Profile Report's NASDAQ Gainers Watch List.

Westport Innovations Inc. (USA) (NASDAQ:WPRT) shares decreased 4.64% to $28.17. Piper Jaffray cut shares of Westport Innovations from an overweight rating to a neutral rating in a research note issued to investors on May 7. Additionally, the company ...

VANCOUVER - Westport Innovations Inc. (TSX:WPT) lost US$31.8 million in its latest quarter as its revenue fell 16 per cent compared with a year ago.

VANCOUVER, May 2, 2013 /CNW/ - Westport Innovations Inc. (TSX:WPT / NASDAQ:WPRT), the global leader in natural gas engines, today reported financial results for the first quarter ended March 31, 2013 and provided an update on operations.

Westport Innovations Inc. (NASDAQ: WPRT)(TSX: WPT) shares closed at $29.02 Friday, gaining approximately 10.0 percent year-to-date.

In this Friday, May 17, 2013, photo, Martin Rawls-Meehan, CEO of Reverie, poses at the company showroom next to a bed that reveals the manufacturing process, in Silver Creek, N.Y.

Patric Ouellette, chief technical officer of Westport Innovations Inc., explained that the gas is supplied at constant pressure via a regulator.