Tetra Tech provides various planning, permitting, compliance, design, and construction services to the oil and gas industry. With a strong commitment to safety and environmental stewardship, Tetra Tech works closely with clients to identify and implement cost-effective engineering and environmental solutions.

We support oil and gas exploration and production; gathering pipelines; transmission pipelines; compressor and pumping stations; processing facilities; refineries; above and below ground storage facilities; and rail, truck, and marine terminal import and export facilities.

Consulting and Studies

  • Siting and routing studies
  • Due diligence
  • Regulatory evaluations
  • Baseline field surveys
  • Permitting strategies
  • FEED-level cost estimates
  • Stakeholder engagement programs

Environmental Management

  • Biological resource surveys
  • Cultural resource surveys
  • Environmental permitting
  • Air and noise modeling
  • Greenhouse gas modeling and permitting
  • Mitigation planning
  • Groundwater and soil monitoring
  • Water treatment
  • Tailings and process water management
  • Emergency response
  • Site closure management and monitoring
  • Legacy site assessment and remediation
  • Environmental impact studies
  • Comprehensive water management
  • Pipeline routing
  • Well site permitting, siting, and designing


  • Geotechnical
  • Civil/structural
  • Mechanical
  • Process
  • Instrumentation and controls
  • Electrical
  • 3D design
  • Materials testing
  • Water/wastewater design
  • Coastal and waterways engineering, including dredging support


  • Construction management
  • Program/project oversight
  • Constructability reviews
  • Field engineering
  • Estimating
  • Procurement
  • Project controls
  • Quality and inspection services
  • Environmental compliance training
  • Environmental inspection programs

Operations and Maintenance

  • Compliance
  • Permitting
  • Process safety management
  • Risk-based inspection program
  • Waste management
  • Auditing and management systems