- http://www.lngfacts.org/related-links/
- http://www.linde-engineering.com/en/process_plants/lng-and-natural-gas-processing-plants/lng_and_natural_gas_processing_plants.html
- https://www.chevron.com/stories/liquefied-natural-gas
- http://www.cpr.org/news/story/maps-watch-oil-and-gas-wells-spread-across-colorado