Chairman and CEO of US oil and gas corporation ExxonMobil, Rex Tillerson, speaks during the 2015 Oil and Money conference in central London on October 7, 2015. AFP PHOTO / BEN STANSALL (Photo credit should read BEN STANSALL/AFP/Getty Images)
Audience members attend a speech by Rex Tillerson, Chairman and CEO of US oil and gas corporation ExxonMobil, during Abu Dhabi International Petroleum Exhibion and Conference (ADIPEC), on November 7, 2016, at the Abu Dhabi National Exhibition Centre. / AFP / NEZAR BALOUT (Photo credit should read NEZAR BALOUT/AFP/Getty Images)
Exxon Mobil chairman and CEO Rex Tillerson smiles during a discussion organized by the Economic Club of Washington on the energy innovations that have led to a new era of energy abundance for North America in Washington, DC on March 12, 2015. AFP PHOTO/ NICHOLAS KAMM / AFP PHOTO / Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
Chairman and CEO of US oil and gas corporation ExxonMobil, Rex Tillerson, speaks during the 2015 Oil and Money conference in central London on October 7, 2015. AFP PHOTO / BEN STANSALL (Photo credit should read BEN STANSALL/AFP/Getty Images)
A picture taken on June 21, 2013 shows President Vladimir Putin (L) and ExxonMobil Chairman and CEO Rex W Tillerson at a ceremony to present awards to the heads and employees of major energy companies in Saint Petersburg. President-elect Donald Trump on December 13, 2016 tapped ExxonMobil chief Rex Tillerson, an oilman with deep ties to Russia, as his secretary of state. Tillerson's nomination comes just days after a secret CIA report accused Russia of interfering with the US election in favor of Trump, in a development which could complicate his confirmation. / AFP / SPUTNIK / Michael Klimentyev (Photo credit should read MICHAEL KLIMENTYEV/AFP/Getty Images)
