« Rotating circle, loose ends, on-line dashboards and charts | Main | More power brings more responsibility »



Perhaps the different colours represent different bore holes, or whatever these things are called? That, or there's LSD involved.


I think it is actually areas. Each borehole is tapped and then depleted over several years, so that the top of the curve represents the total production for a given year.
Besides that probably not the best chart around.


It's the incremental production added from a given year. A clever way to show the contribution of a given year's completion to a field's lifetime. You can see that the "easy" wells drilled in 2000 have a slower decline than those in 2010. It's a game of catching up when you start going after the harder production.

Lemmusx2: I also wondered if each color represented a single well, but many wells are drilled in a year.


I agree with to.

The comments to this entry are closed.


Link to Principal Analytics Prep

See our curriculum, instructors. Apply.
Kaiser Fung. Business analytics and data visualization expert. Author and Speaker.
Visit my website. Follow my Twitter. See my articles at Daily Beast, 538, HBR.

See my Youtube and Flickr.

Book Blog

Link to junkcharts

Graphics design by Amanda Lee

The Read

Keep in Touch

follow me on Twitter