MECHANICAL ENGINEERING Develop practical mechanical and piping design solutions for pipeline and facility projects, including traps, regulator stations, measurement stations, compressor stations, pump stations, tank terminals, and main-line block valve sites. About Us: NorthStar Energy Services, a Quanta Services, Inc. (NYSE:PWR) company, is based in Channelview, TX and provides engineering, design, procurement, construction and support services to the chemical, petrochemical, pipeline, oil & gas, bulk storage and terminal industries throughout the country.