Iran vows to respond to US strikes, says US energy companies' facilities are 'exposed'

By Nayera Abdallah and Eman Abouhassira DUBAI, Sept 7 (Reuters) - Iran threatened on Monday to retaliate against any new U.S. attacks on its assets, warning that the energy production chain in the region was "sprawling, accessible and exposed" and that U.S. oil and gas companies there shared that exposure. "Strike our assets and you get struck," Iranian Parliament Speaker Mohammad Baqer Qalibaf said after U.S. and Iranian strikes on shipping at the weekend that pushed oil prices up to six-week highs at one point on Monday.