Cause of Keystone Pipeline Spill Worries South Dakota Officials as Oil Flow Restarts - Inside Climate News
Keystone Pipeline spill in South Dakota twice as big as first thought
Oil Spill in North Dakota Raises Detection Concerns - The New York Times
North Dakota oil spill raises questions about safety | MPR News
North Dakota: The Oil Spill State | Earth Focus | News & Community | KCET
S.D. Tar Sands Oil Spill: Bad Omen for Keystone XL Safety
Documents Raise Important Questions About Tesoro's Pipeline Spill in North Dakota - DeSmog
Pipeline Spill Adds To Concerns About Dakota Access Pipeline : NPR
How long did the North Dakota oil spill remain undetected? - Greenpeace USA
Army Corps sees no cause to shut Dakota pipeline during review -filing | Reuters
Massive 2013 oil spill in North Dakota still not cleaned up | whas11.com
Keystone pipeline reopens after 1.4 million-litre spill in North Dakota | CBC News
With Big Spill to Clean, Pipeline Owner Seeks Keystone XL Approval - The New York Times
Salting the earth: North Dakota farmers struggle with a toxic byproduct of the oil boom
Farmers Fight a New Kind of Pipeline Spill--Salty Wastewater - WSJ
North Dakota farmers fear more than just oil spills – Living with Oil and Gas
TransCanada could lose Keystone permit over oil spill, South Dakota regulator says - MarketWatch
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Keystone Pipeline Leaks 14,000 Barrels of Oil in Kansas | Smart News| Smithsonian Magazine
Over 380,000 gallons of oil spill from Keystone pipeline in North Dakota - ABC News
South Dakota Oil Spill Reveals Major Pipeline Problems | Time
Wastewater pipelines often leak in North Dakota (Built to spill) — High Country News – Know the West
S. Dakota Keystone pipeline shut down after oil spill
HazardEx - US Keystone pipeline leaks for second time in two years
