Today, Cummins (NYSE:CMI)  reported earnings that met investor expectations. Mid- to large-size truck engine sales in North America seem to be a bright spot for the company this quarter, but company sales were down overall. The main culprits were oil and gas, along with continued weakness overseas. The company will combat lower profits by working to reduce spending. 

We also had news out of Westport Innovations (NASDAQ:WPRT), which recently signed an agreement with TATA motors helping to develop natural gas engines. Both companies blamed  a portion of waning revenues on the lack of natural gas infrastructure, which is causing decreased demand. Get the full scoop in the following video with Fool.com analyst Blake Bos.


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