A gas pipeline is a network of pipes that transports crude oil, refined product, highly volatile liquids, and other materials around the country to ensure the proper delivery and distribution of gas and oil. Pipelines require thousands of professionals with responsibilities related to the construction and maintenance of the pipeline. Your duties vary by position, but you can work as an engineer, electrician, pipeliner technician, construction worker, carpenter, health and safety personnel, supervisor, or geological technician, or in a variety of other skilled craftsman and equipment operator positions.