21.   The warning Friday marked the third time in a week that the refinery has had problems with pollution emissions.

22.   He said this phase of development will ensure the refineries have the flexibility to respond to growing world demand for refined products.

23.   But Iranian refineries were having difficulty in refining the oil and exports had been suspended last week.

24.   Experts hold that the refinery at Milazzo had too much capacity for the needs of Agip, and last year its output was restricted.