Essor 1973 - Concrete 20 ft.high - EXXON, Raffinery at Fos-sur-Mer 13 Essor 1973 - Concrete 20 ft.high - EXXON, Raffinery at Fos-sur-Mer 13 Essor 1973 - Concrete 20 ft.high - EXXON, Raffinery at Fos-sur-Mer 13 Essor 1973 - Concrete 20 ft.high - EXXON, Raffinery at Fos-sur-Mer 13 Essor 1973 - Concrete 20 ft.high - EXXON, Raffinery at Fos-sur-Mer 13