Derailment after derailment. They just keep happening.

Since early February, there have been at least four train derailments in North America carrying crude from North Dakota’s Bakken Shale. These accidents have sparked increased calls from citizens, the rail industry and lawmakers for the federal government to increase safety regulations.

To keep up with these incidents, PublicSource will provide a roundup of stories every week.

Under new safety laws passed by state regulators in North Dakota, oil companies now must remove certain liquids and gases before shipping, according to the Associated Press.

New rules take effect for North Dakota crude oil shipments

Do those North Dakota rules go far enough? Maybe not, industry experts told Reuters.

North Dakota’s new oil train safety checks seen missing risks

For the first time, the Energy Information Administration is tracking crude-by-rail movements across the U.S.

Here’s a graph from their website that shows the flow of oil in the U.S. in 2014 (notice how much is coming into Pennsylvania from North Dakota’s Bakken Shale — it’s the fattest green arrow.​

Here’s a gif The Washington Post put out using these maps to show how crude-by-rail has increased since 2010. 

Check out the data.

Harrisburg city council members discuss the secrecy over “bomb trains” and urge federal and state agencies to speed up efforts to minimize derailments, according to The Patriot News.

Harrisburg council members hear concerns about so-called ‘bomb trains’

Reach Natasha Khan at 412-315-0261 or nkhan@publicsource.org. Follow her on Twitter @khantasha.

Know more than you did before? Support this work with a MATCHED gift!

Through Dec. 31, the Wyncote Foundation, Loud Hound Foundation and our generous local match pool supporters will match your new monthly donation 12 times or double your one-time gift, all up to $1,000. Now that's good news!

Readers tell us they can't find the information they get from our reporting anywhere else, and we're proud to provide this important service for our community. We work hard to produce accurate, timely, impactful journalism without paywalls that keeps our region informed and moving forward.

However, only about .1% of the people who read our stories contribute to our work financially. Our newsroom depends on the generosity of readers like yourself to make our high-quality local journalism possible, and the costs of the resources it takes to produce it have been rising, so each member means a lot to us.

Your MATCHED donation to our nonprofit newsroom helps ensure everyone in Allegheny County can stay up-to-date about decisions and events that affect them. Please make your gift of support now.

Natasha is PublicSource's creative director. She runs the organizations visuals team, edits and produces interactive graphics, data visualizations and web packages for PublicSource. She manages the website...