Williams—Gas Processing, Compression, and Pipeline Development Services


Williams (including Chesapeake
Midstream, which then became Access
Midstream, which was then bought by


Pennsylvania, West Virginia and Ohio

CEC Services

  • Cultural Resources Survey
  • Wetland Delineation
  • Project Siting Assistance
  • Phase I ESAs
  • Survey and Mapping
  • Wetland & Stream Delineation
  • Threatened & Endangered Species Review and Surveys
  • Subsurface Investigations and
  • Civil Engineering
  • Ecological Permitting
  • Landscape Architecture
  • Layout and Grading of Access Roads and
  • Erosion and Sedimentation Control Plans
  • Post-Construction Stormwater
    Management Plans
  • PA ESCGP-2/3 Permits
  • WVDEP Stormwater Permits
  • DOT and Local Municipality Highway
    Occupancy Permitting
  • Erosion and Sediment Control Inspections
  • Post-Construction Monitoring
  • Construction Quality Assurance Services
  • SPCC Plans
  • Landslide Remediation Services

Owner Objective

Williams provides gathering, processing, and fractionation of natural gas in the Marcellus Shale region. Williams Partners, LP is one of the largest energy master limited partnerships in North America.

CEC Approach

Since 2010, CEC has developed a partnership with Williams by first opening an office specifically to serve Chesapeake Midstream Partners, LP (CHK) in northeastern Pennsylvania. CHK changed its name in 2012 to Access Midstream Partners, LP and ultimately merged with Williams in 2015. CEC has continued to grow this relationship throughout the corporate changes and beyond northeastern Pennsylvania into all areas of Pennsylvania, West Virginia, and Ohio. CEC has been able to accomplish this time and again by proving the value of its inclusion on the team.

CEC’s team provides its full toolbox of services to Williams from initial route development, to permitting, as-built surveys, and permit close out. To date, CEC has collaborated with Williams to complete engineering and permitting for three gas processing facilities, 19 compression or other facilities, and more than 450 miles of pipeline. Facilities are located in West Virginia and Pennsylvania, and pipelines are located in West Virginia, Pennsylvania, and Ohio.

Areas of Operation

  • Northeast and southwest Pennsylvania, northern West Virginia, and eastern Ohio Gathering
  • More than 3 Bcf/d gathering capacity Processing
  • 87 Mbbls/d total processing capacity

West Virginia Facilities

  • Oak Grove Plant, approx. 270 – acre site, Marshall County
  • Three natural gas processing plant trains with potential future expansion, administration building, warehouse, pump station, and flare
  • Fort Beeler Plant (originally designed by CEC for Caiman), approx. 45-acre site, Marshall County
  • Phase 2 cryogenic plant, administration building expansion, flare expansion
  • Moundsville Plant (originally designed by CEC for Caiman), approx. 35-acre site, Marshall County
  • Two natural gas fractionation plant trains with potential future expansion and terminal facility including rail, loading facilities, and associated infrastructure
  • Pioneer Compressor Facility, approx. 25-acre site, Ohio County
  • Blake Ridge Compressor Facility, approx. 30-acre site, Wetzel County
  • Ridgeline Compressor Facility, approx. 35-acre site, Marshall County
  • Threedubs Compressor Facility, approx. 45-acre site, Brooke County
  • Proctor Ridge M&R Facility, approx. 6-acre site, Marshall County
  • Mountaineer Compressor Facility, approx. 40-acre site, Brooke County

Pennsylvania Facilities

  • Gibralter M&R Facility, approx. 6-acre site, West Finley Township, Washington County
  • Graysville Compressor Facility, approx. 25-acre site, Richhill Township, Greene County
  • Church Compressor Station, approx. 26-acre site, Dimock Township, Susquehanna County
  • White Compressor Station, approx. 24-acre site, Springville Township, Susquehanna County
  • Miller Compressor Station, approx. 20-acre site, Hartford Township, Susquehanna County
  • Anderson Dehydration Station, approx. 10-acre site, Auburn Township, Susquehanna County
  • MacNew Compressor Station, approx. 49-acre site, Brooklyn Township, Susquehanna County
  • Potter Compressor Station, approx. 55-acre site, Brooklyn Township, Susquehanna County
  • Wilmot Compressor Facility, approx. 35-acre site, Wilmot Township, Bradford County
  • Red Fox Compressor Facility, approx. 15-acre site, Fox Township, Sullivan County