Stock photography, photos: 13AG-184A - Pumpjack in winter Stock photos of Pumpjack in winterNorthern Alberta, Canada Photograph: © Troy Parlee Click for a larger image and more information Keywords associated with this stock photo: Pumpjack, pump, jack, Industry, gas, oil, exploration, development, resource, pollution, economy, ecology, environment, winter, snow, extract, cold, blue, white, Alberta, Canada, North America, energy, crisis, green house, emissions, Kyoto, carbon, fuel, mechanical, equipment, fossil, gasoline, gas, barrel, petrol, petroleum, action, motion, movement, tax