A newly constructed pumpjack in front of the rainshaft from an afternoon thunderstorm. Pawnee National Grasslands, Colorado - July 2013

Oil Pupmjacks stand dormant on the Pawnee National Grasslands, Colorado. October 2010

An unfinished oil pumpjack construction in front of a flaring gas well on the Pawnee National Grasslands, Colorado. June 2011

An oil drilling rig works through the night. Near Windsor, Colorado - September 2013

A drilling rig works on a frigid misty morning.  Near Greeley, Colorado - October 2013

A drilling rig and pipe at night.  Near Milliken, Colorado - November 2013

Condensate tanks in a cornfield. Greeley, Colorado - July 2011

A service road for natural gas equipment near Milliken, Colorado. May 2011

A condensate tank near Greeley, CO - July 2011

Pawnee National Grasslands - July 2012

Three oil pumpjacks pumping.  Weld County, Colorado - May 2013

An oil pumpjack pumps with a thunderstom cell in the background. Near Akron, Colorado - April 2013

Oil tanks in front of a distant grain elevator at sunrise. Near Milliken, Colorado - September 2012

Natural gas separators and tanks during a snowstorm. Near Greeley, Colorado - February 2013

Greeley, Colorado - March 2012

A flaring tower at a large natural gas well. Near Kersey, Colorado - April 2013

A drilling rig stands in the distance behind a field of cut wheat. Near Greeley, Colorado - August 2016

Natural gas equipment stands in the floodwaters of the South Platte River. Near Lasalle, Colorado - September 16th, 2013

Greeley, Colorado - April 2012

Oil tanks and a separator at sunrise.  Near Greeley, Colorado - March 2014

An oil pumpjack in front of a sound dampening wall.  Weld County, Colorado - November 2017

A lone frac tank in a public open space near Greeley, CO - April 2011

Frac Tanks lined up with precision in Weld County, Colorado. March 2011

Frac tanks after a dusting of snow. Near Milliken, Colorado - March 2013

Natural gas equipment catches over-spray from a nearby irrigation pivot near Greeley, Colorado. August 2011

Pawnee National Grasslands - October 2010

Pawnee National Grasslands, Colorado - November 2010

Weld County, Colorado - November 2014

Near Milliken, Colorado - September 2012

Near Milliken, Colorado - April 2013

Rain water collects on an oil well pad. Pawnee National Grasslands, Colorado - May 2015

Pumpjacks stand face to face. Weld County, Colorado - December 2017

A small drilling rig in the snow at sunrise. Near Greeley, Colorado - December 2017

Weld County, Colorado - January 2012

A natural gas separator and shed with a service road flooded by irrigation water.  Near Greeley, Colorado - September 2013

Sunset over a snow covered oil field.  Weld County, Colorado - January 2015