Two pump jacks on oil site with snow covered mountains in the background and blue sky and clouds; Alberta, Canada

Oil pump in wheat field

Oil pump in wheat field

Hawaii, Oahu, Unleaded Gas Pump With A Blue Sky In The Background.

Close up of pump jack with rolling hills and snow covered mountains in the background with blue sky; Alberta, Canada

Close up of two pump jacks with rolling hills and snow covered mountains in the background with blue sky and clouds; Alberta, Canada

Large pump jack in a snow covered field with snow covered foothills, blue sky and clouds in the background; Longview, Alberta, Canada

Large pump jack in a snow covered field with snow covered mountains, blue sky and clouds in the background; Longview, Alberta, Canada

A Pumpjack In A Field With The Rocky Mountains In The Background; Alberta, Canada

Pumpjack with thunderstorm clouds and blue sky in the background; Alberta, Canada

Two pump jacks at sunrise reflecting the warm morning light in a snow covered field and snow covered foothills and mountains in the background lit by the morning sun; Alberta, Canada

Two pump jacks at dusk in a snow covered field with a full moon in a clear sky and snow covered foothills and mountains in the background; Alberta, Canada

Wheat

Bicycle pump against a white background.

Bicycle hand pump against a white background.

Bicycle wheel and bicycle pump against a white background.

Oil rig, artwork

Wheat and corn

Oil well, artwork

Harvested ears of wheat

Multidrug efflux pump molecule

Calcium ATPase ion pump

Liver oil capsule.

Oil distribution, conceptual artwork

Wheat with oil pump in background