After a series of multibillion-dollar stumbles, along with accusations of both under-investment and overzealous spending, international majors are finally finding a productive place in their portfolios for US shale gas. All five of the largest international oil and gas companies have made shale deals they would rather forget, most notably Exxon Mobil's $41 billion takeover of XTO Energy, which the supermajor defends from an operational perspective while admitting it paid too much.
展开▼
