As major energy companies move forward with ambitious plans to expand the development of oil and gas production facilities in the Appalachian Basin shale formations—located in western Pennsylvania, eastern Ohio, and northern West Virginia—they are relying on AECOM as their process engineering partner under long-term Master Services Agreements. For example, our work in the Marcellus Shale formation in Pennsylvania includes conceptual studies and final designs for well pads and gathering and compression facilities, procurement of equipment, and quality control services. We also provide process engineering services for the pipelines that collect and transport crude oil and natural gas and liquids to downstream facilities for processing, refining, and distribution.