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The Five Biggest Oil Fields Ever Found

Ghawar in Saudi Arabia stands alone: about 230 km long, over 60 billion barrels produced, and the anchor of world supply since the 1950s. Greater Burg...

What Makes an Oil Field a Supergiant

Geologists class fields by recoverable reserves: giants hold over 500 million barrels and supergiants over 5 billion. Only a few dozen supergiants hav...

The Shale Revolution: Fracking Rewrote the Map

Two technologies, horizontal drilling and multi stage hydraulic fracturing, reset world oil supply after 2008. The Barnett proved the method on gas, t...

Deepwater Frontiers: Gulf of Mexico to Brazilian Pre-Salt

Deepwater oil moved far offshore in the 1990s and 2000s. Thunder Horse in the Gulf of Mexico sits under 1,800 m of water, and Brazilian pre-salt finds...

The North Sea: Boom, Peak and Afterlife

Gas at Groningen in 1959 hinted at what lay under the region, and Ekofisk in 1969 proved North Sea oil at scale. Forties and Brent made Britain a prod...

Gas Giants: The Fields That Heat the World

The South Pars North Dome field, shared by Qatar and Iran, is the largest gas field ever found, holding on the order of 1,200 trillion cubic feet in p...