Statoil, Bribery and Extraterritoriality

Statoil has recently settled with the U.S. SEC regarding its bribery of Iranian officials in order to secure lucrative oil and gas rights in Iran.  So, one might ask, why would a Norwegian company making a bribe in Iran have to deal with the SEC?  The U.S. Foreign Corrupt Practices Act prohibits bribery by U.S. persons, as well as by companies registered under the Securities Exchange Act of 1934.  In order to get a NYSE listing, Statoil registered.  Other governments do not seem to worry too much about this type of extraterritoriality, although it certainly departs from territorial conduct as a basis for regulatory jurisdiction.