reuben jordan, a retired legendary high school track coach, was last seen in his toyota tundra. ed emmett is the chief executive in harris county. he says 500,000 vehicles were lost in the storm. >> the deaths occurred in vehicles where people were out driving, and they got into high water. there could still be some people in some vehicles that we haven't recovered yet. we recognize that. >> reporter: receding floodwaters will reveal many more cars and potentially more victims. and, dermarco, that house-by- house search rescue teams launched today will involve tens of thousands of resis. >> morgan: mark strassmann reporting. >> announcer: this is the cbs overnight news. >>> gasoline prices all over the nation up 10 $2.45 a gallon, the highest they have been all year. more on that now from transportation correspondent kris van cleave. >> reporter: this is the nation's largest oil refinery, waterlogged and shut down after harvey ravaged port arthur, texas. more than a dozen refineries across the gulf are closed, including this conoco-phillips plant outside houston and the exxonmob

reuben jordan, a retired legendary high school track coach, was last seen in his toyota tundra.mett is the chief executive in harris county. he says 500,000 vehicles were lost in the storm. >> the deaths occurred in vehicles where people were out driving, and they got into high water. there could still be some people in some vehicles that we haven't recovered yet. we recognize that. >> reporter: receding floodwaters will reveal many more cars and potentially more victims. and, dermarco, that house-by- house search rescue teams launched today will involve tens of thousands of resis.

reuben jordan, a retired legendary high school track coach, was last seen in his toyota tundra.mett is the chief executive in harris county. he says 500,000 vehicles were lost in the storm. >> the deaths occurred in vehicles where people were out driving, and they got into high water. there could still be some people in some vehicles that we haven't recovered yet. we recognize that. >> reporter: receding floodwaters will reveal many more cars and potentially more victims. and, dermarco, that house-by- house search rescue teams launched today will involve tens of thousands of residents. >> morgan: mark strassmann reporting. mark, thank you. as the floodwaters here in texas rose, so did gasoline prices all over the nation. since friday they are up 10 a nts to a nationwide average $2.45 a gallon, the highest they have been all year. more on that now from transportation correspondent kris van cleave. >> reporter: this is the nation's largest oil refinery, waterlogged and shut down after harvey ravaged port arthur, texas. more than a dozen refineries across the gulf are closed, inclu