Just two years ago it was simply another stretch of desert occasionally crossed by wandering camels. Today huge steel structures rise from the sand to dominate the skyline as about 20,000 men work in the blistering heat on what Saudi Arabia claims is the world’s largest industrial project.
The Khurais oil field development is expected to add 1.2m barrels a day of light, highly desirable crude to Saudi Arabia’s production capacity. It is a critical element of the country’s energy investment plan, which was initially expected to eat up $70bn (€45bn, £35.7bn) but has since ballooned.

Oil 