Oil pumpjack silhouette with sunstar; Morinville, Alberta, Canada

Oil Industry Pumpjack In Winter; Longview, Alberta, Canada

An Oil Pumpjack In Wheat Field With Inland Grain Terminal In The Background, Near Gull Lake, Saskatchewan

Silhouette of two pump jacks at sunrise with sun burst and colourful clouds in the sky; Alberta, Canada

Silhouette of a pump jack at sunrise with the sun glowing on the horizon and colourful clouds in the sky; Alberta, Canada

Silhouette of a pump jack at sunrise with the sun glowing on the horizon and colourful clouds in the sky; Alberta, Canada

Silhouette of pump jack at sunrise with sun burst and colourful clouds in the sky; Alberta, Canada

Silhouette of a pump jack at sunrise with orange glow in the sky and clouds; Acme, Alberta, Canada

Silhouette of a pump jack at sunrise with the sun glowing on the horizon and colourful clouds in the sky; Alberta, Canada

Pumpjack with dramatic clouds and blue sky at sunset, West of Airdrie; Alberta, Canada

Aerial view of pumpjack in a snow-covered field with long shadows, warm light of sunrise, rolling hills, snow-covered mountains and blue sky in the background; Longview, Alberta, Canada

Pumpjacks with dramatic clouds and blue sky at sunset, West of Airdrie; Alberta, Canada

Oil pumps, artwork

"Oil well pumps, Illustration"

"Oil well pump, Illustration"

Biofuel, conceptual artwork

Nodding Donkey Oil Wells In Silhouette