World Oil's assessment of ExxonMobil's immediate circumstances, however, does little to disguise the substantive strength of the company which it describes as having "one of corporate America's strongest balance sheets," though it asserts that the company is likely to have to face searching questions from its investors "at a time when oil prices are plummeting." Decision-making at ExxonMobil, World Oil says, could be more challenging in the period ahead "with Venezuela making aggressive naval maneuvers targeting the company's ships in Guyana," where the company is pursuing what World Oil describes as "one of its much-needed sources of new oil production." All of this, the magazine says, against the backdrop of oil prices having "fallen more than 40% since reaching a high of $76.41 on Oct. 3."