A FIRE INVOLVING THE VOLVO FUEL TRUCK OCCURRED. THE SECURITY GUARD NOTED SMOKE COMING FROM THE HEAVY EQUIPMENT PARKING AREA. SHE IMMEDIATELY ATTEMPTED TO CONTACT FORMAN AND INFORM HIM OF THE FIRE. ATTEMPTS FAILED (LATER DISCOVERED THAT THE BATTERY ON HER PORTABLE RADIO HAD RUN DOWN.) ANOTHER PERSON CALLED FOREMAN. THE ENGINE COMPARTMENT & OPERATORS CAB WERE ENGULFED IN FLAMES.