An (output loss) can be constituted-of-or-filled-with some barrels.
Some barrels can be constituted-of-or-filled-with (diesel oil).
Some barrels can be constituted-of-or-filled-with (oil condensate).
Some barrels can be constituted-of-or-filled-with (whale oil).
Some barrels can be constituted-of-or-filled-with (sperm oil).