Westport Innovations said Tuesday it reached an agreement with Caterpillar to use natural gas technology for mining trucks and locomotives. Terms of the deal were not disclosed. The Vancouver-based company makes direct injection, natural gas technology for heavy-duty vehicles. “The substantial price difference between natural gas and diesel fuel is resulting in a strong financial incentive to enable off-road applications to take advantage of low natural gas energy costs without sacrificing operational performance,” said David Demers, chief executive officer of Westport Innovations. Read more: http://www.foxbusiness.com/markets/2012/06/05/caterpillar-westport-team-up-on-natgas-vehicles/#ixzz1wvszEJsH