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                                                    Tapping the sun to extract stubborn crude
                                                 
                                                    
                                                        |   | Tapping the sun to extract stubborn crude 
                                                                In parts of the state of California’s San Joaquin valley,  oil wells are abundant. But many of the state's oilfields are around a century old and the remaining oil is hard to extract. One company is taking a novel approach to the problem. (May 27)
                                                             
                                                                
                                                                
                                                                
                                                                    Video Length: 148
                                                                 
                                                                    Date Found: May 27, 2011
                                                                 
                                                                    Date Produced: May 27, 2011
                                                                 
                                                                    View Count: 0
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