Excerpt from Canadian counter-insurgency publication

“Unlike electric energy transmission lines, crude oil and natural gas pipeline are relatively secure from harm once they are properly placed in the ground. Each pipeline, however, requires pump and compressor stations to push product through it. These above-ground stations are susceptible to damage and interference. Other supporting parts to the crude oil and natural gas system might also be vulnerable to interference and accidental damage, including crude oil refineries, natural gas processing plants and storage facilities for both products.”