From Wellhead to Refinery

Merrick has provided professional services to the oil and gas industry since 1988. Our design professionals deliver projects to refining, gas processing, trans-loading and product terminals, compression, and pumping facilities.

We deliver FEL/FEED studies and construction-ready work packages of projects upstream, midstream, and downstream—including greenfield construction and complex retrofits on existing facilities.

With more than 30 years working in the oil and gas industry, we know our way around. Before you launch your next project, contact us and see what we can do for you to ensure your success.

Comprehensive Oil and Gas Services

Merrick’s oil and gas team covers all projects needs, including downstream, midstream, and upstream.

We deliver excellence in:

  • Front-End Engineering
  • Conceptual Design
  • Traditional Engineering, Procurement and Construction Management (EPCM) Services
  • Economic Analysis
  • Owner’s Representation
  • Asset Management
  • Integrity Surveillance
  • Surveying and Mapping


Merrick works closely with our refinery clients on projects ranging from new development to renovation of existing facilities and everything in between.

Our downstream services include project evaluation, process simulation and optimization, process licensor selection support, utility system studies and HAZOPS facilitation, PHAs and PSM support, as well as full scope design procurement and construction management services. We provide in-plant reviews of major processing units and utility systems to identify yield benefits and energy savings.

Midstream and Upstream

Merrick offers services for all facilities from well site to refinery. Merrick works with our clients to develop new facilities, renovate existing facilities, improve operations, and support bottom-line profits.

Our expertise includes:

  • Gas gathering and transmission
  • Compressor stations
  • Pipeline facilities
  • Dehydration
  • Product fractionation and storage
  • Plant control systems
  • Relief valve and flare systems.

Remote Sensing, Surveying, and Mapping

Merrick’s in-house surveying, remote sensing, and mapping services give you the data you need to make decisions. Our airborne light detection and ranging (LiDAR) mapping provides highly accurate basemap information in a fraction of the time of conventional survey methods. Merrick’s terrestrial LiDAR and panoramic visual database (PVD) provides high resolution 360-degree photographs of existing installations, allowing detailed as-builts, accurate drawings for retrofits, and collaborative design interaction.

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