July 5, 2016, 7am PDT
Operated by Canadian oil giant Enbridge, Line 5 is an underwater pipeline running beneath the Mackinac Straits, which connect Michigan's upper and lower peninsulas. A rupture in the aging pipes could mean catastrophe.
July 6, 2015, 5am PDT
While a judge must approve the historic $18.7 billion settlement reached July 2, the United States and the five Gulf States of Alabama, Florida, Louisiana, Mississippi, and Texas have agreed to the settlement, along with BP.
June 10, 2014, 8am PDT
While regulated on the federal level, there is still much that can be done on a state level, including adding per-barrel fees to pay for cleanup plans. Plus, a new regulation took effect requiring railroads to notify states about Bakken crude trains.
December 20, 2011, 5am PST
It's on the scale of a Deepwater Horizon spill every 2 months - except that it's considered the cost of doing business. Aging pipes, lax oversight and inclement weather all combine to make an estimated 5 million tons of annual spillage.