In investing, there's always another angle. The re-election of Barack Obama was supposed to be bad news for offshore oil drilling, or at least as not as favorable as a Mitt Romney victory. Yet, if most of a company's drilling is not near North America, then the political concerns lessen. United Kingdom-based Ensco (ESV) is such a company. In the nine months through September, the U.S. Gulf of Mexico accounted for 28% of revenue. Brazil was the