She sees risk of default as early as October, if Congress fails to act on a debt-limit hike when the two-year suspension ends on Saturday.

Inflationary pressures continue around the world, although at varying paces.

As Exxon faces myriad challenges around cash flow, reputational risk, and investor relations, Kathryn Mikells will join the ranks of senior vice presidents who share day-to-day management duties with the CEO.