2010's Gulf oil spill put almost 5 million barrels of oil in the Gulf of Mexico. Where did it all go?

British oil giant BP has filed court papers demanding the Houston-based firm Halliburton pay billions of dollars in clean-up and compensation costs for the 2010 oil spill in the Gulf of Mexico.

The BP spill anniversary reminds us that oil is ubiquitous. Replacing it isn't so easy, but some industries are coming up with alternatives.

The BP oil spill changed the lives of many folks along the Gulf Coast. But the resilient culture remains.

Louisiana shrimp season just got underway. The BP spill made it harder to sell seafood from the Gulf of Mexico, but new online marketing and sales could help fishermen lure customers.

A year after the BP oil spill, things are looking up in New Orleans. But for Lafourche Parish on the Gulf Coast, it's a different story.

In the year since the Gulf oil spill, scientific research has been delayed because BP says it can't spare samples to study.

The government is beginning the long process of tallying the natural resources damage caused by the BP oil spill. But what's the value of a dolphin?