Keywords
color photography, energy, engineering and technology, environmentalism, industry, labor, laborer, males, man, manual labor, men at work, north america, occupations and work, oil, oil worker, oil workers, petroleum, pumps, science, silhouette, technology, united states, united states of america, urban, urban oil well, us, usa, well, work, worker, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u17795334