The federal government’s probe into Weatherford International Ltd‘s dealings in foreign countries has burgeoned far beyond a simple bribe inquiry by the Securities and Exchange Commission. It has become a multi-agency civil and criminal investigation into allegations that Weatherford did business with terrorist-friendly countries that are under U.S. trade sanctions, according to a company filing last month with the SEC.

Weatherford is one of the world’s largest oilfield service companies, operating in over 100 countries. Weatherford first revealed the trade sanction probe in late 2007.