Agencies end response to coastal tar balls, still don’t know origin
        Nearly three weeks after oil coated and killed several birds on the Oregon and southern Washington coasts, officials say they still don’t know where the sticky petroleum product came from. But they say they’ve done their best to clean up the beaches that were affected by the mysterious balls of tar and they’ve ended an effort that brought together multiple    
    
        
     
 
             
                             
                             
                             
                             
                             
                            
















