“15.8 PTT shall indemnify, defend and hold harmless CONTRACTOR from and against any claim of whatsoever nature arising from (i) pollution emanating from any reservoir or from the property of the PTT howsoever arising, (ii) fire, explosion or blowout of any well or reservoir; (iii) damage to or escape of product from any facility including any pipeline or other subsurface facility; (iv) the discharge of trash, waste oil, bilge water or other pollutants or from the removal of wreckage.”