A seventh worker died from injuries suffered in a natural gas well explosion, and authorities retrieved the charred remains of five other workers. Emergency crews entered the fiery, twisted wreckage after cooling it with water and clearing a path to the five bodies. Another victim was brought out hours after the explosion. The seventh man died at LSU Medical Center, where another worker was in serious but stable condition. The explosion occurred in Bienville Parish, La., about 45 miles east of Shreveport, as 13 workers were preparing the new well to begin pumping natural gas.