Williston_Oilboom_003 Oil pumps sit in fields outside of Williston, North Dakota Image Info Dimensions: 667 × 1,000 Date: January 3, 2012 Camera: Canon EOS 5D Mark II Aperture: f⁄4 Focal Length: 35 mm ISO: 125 Shutter Speed: 1⁄8,000.0 sec Name: Williston_Oilboom_003.jpg Mime Type: image/jpeg Type: JPG Size: 283.19 KB