From Wellhead through Refinery

Merrick has provided professional services to the oil and gas industry since 1988, designing and installing facilities across the entire upstream, midstream, and downstream spectrum. We have industry experts for all project phases from concept to commissioning, all with “safety first” as a priority. From upstream gathering, treating, and terminals, through midstream processing, transportation and storage, and to refining processes, facility integration, and finished product storage and delivery, we have the capabilities and expertise to provide the most cost-effective solutions for our clients.

With more than 30 years working in the oil and gas industry, we understand our client’s challenges to maintain aging facilities, accommodate the growing demand for products and cost containment, and implement the latest government mandates.

Comprehensive Oil and Gas Services

Merrick’s oil and gas team covers all upstream, midstream, and downstream project needs:

We deliver excellence in:

  • Front-End Engineering
  • Conceptual Design
  • Detail Engineering
  • Traditional Engineering, Procurement and Construction Management (EPCM) Services
  • Electrical and Controls
  • Economic Analysis and Capital Budget Preparation
  • Owner’s Representation
  • Asset Management
  • Integrity Surveillance
  • 3D Scanning, Surveying and Mapping

Upstream and Midstream

Merrick provides solutions from well site to refinery that assist our upstream and midstream clients to execute the cost-effective, fast-paced projects that are critical to their success. Merrick develops projects and associated designs that address current requirements, anticipate future facility needs, incorporate value engineering, and allow for equipment re-use.

We focus on our client while providing engineering, procurement, and construction management services or fully integrated EPCM for the most cost-effective execution. We’ve designed new facilities, as well as modifications, expansions, and revamps to existing facilities across the range of upstream and midstream gas and liquids projects including well-head separation, gathering, treating, liquid and gas processing, storage, pipelines, and all manner of loading / unloading infrastructure.


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 and development, process simulation and optimization, process licensor selection support, utility system studies, HAZOPS facilitation, PHAs and PSM support, as well as full scope design, procurement, construction management services, and fully integrated EPCM.

We understand the challenges our downstream refining clients face amidst the growing demand for ultra-clean products, the need for compliance with new government mandates, and the continual challenge of executing cost-effective projects. We respond to all of these needs while maintaining existing unit operations and limiting refinery downtime to maximize profitability.

3D Scanning, 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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