Third-Party Cost Estimation

At Delta Decom, we specialize in delivering highly accurate and data-driven decommissioning cost estimates for both offshore and onshore energy infrastructure. Our service is underpinned by decades of industry knowledge and our proprietary ACES (Advanced Cost Estimation System) platform.

With the ACES system, Delta Decom has built one of the industry's most comprehensive databases—drawing from decades of historical offshore market trends and thousands of global offshore asset records. This deep well of data enables us to generate precise, site-specific cost models, offering our clients unmatched reliability in planning and budgeting for decommissioning projects.

Offshore Oil and Gas

We provide specialized cost estimates across all major offshore asset categories, including:

  • Well Plug and Abandonment (P&A)

  • Pipeline Decommissioning

  • Subsea Facilities and Infrastructure

  • Fixed Platform Removal

  • Floating Facilities Decommissioning, including:

    • Floating Production Storage and Offloading Vessels (FPSOs/FSOs)

    • Tension Leg Platforms (TLPs)

    • Floating Production Units (FPUs)

    • Semi-submersible Platforms

    • Single Point Anchor Reservoirs (SPARs)

Offshore Wind

In addition to oil and gas asset support, Delta Decom offers tailored cost estimation services for the growing sector of offshore renewable energy, specifically focusing on the safe and efficient retirement of infrastructure. Our team delivers precise, project-specific estimates for:

  • Offshore Wind Turbine Generators

  • Subsea Cabling Systems

  • Offshore Substations and Transition Platforms

  • Floating Renewable Installations (e.g., Floating Wind Farms)

Onshore Facilities

Our cost estimation capabilities extend to complex onshore assets and infrastructure. We deliver detailed and defensible cost projections for:

  • Central Processing and Production Facilities

  • Liquified Natural Gas (LNG) Facilities

  • Liquified Petroleum Gas (LPG) Storage Terminals

  • Methanol Plants

  • Inland and Coastal Terminals, including tank farms and export systems

  • Infield Flowlines and Export Pipelines

  • Construction Camps, Roads, Airstrips, and Industrial Buildings

  • Well Pads and Drilling Infrastructure

  • Manifold Stations, Gathering Stations, and Booster Stations

Why Choose Delta Decom?

✔️ Data-Backed Methodology: Every estimate is grounded in real-world data and refined through industry benchmarks.

✔️ Global Asset Insight: Our ACES system provides insight into thousands of decommissioned and active offshore and onshore facilities worldwide.

✔️ Cross-Sector Expertise: We work across oil & gas, LNG, petrochemical, and renewable energy sectors.

Whether you're preparing for a regulatory submission, investment evaluation, or operational planning, Delta Decom ensures you have a clear, transparent, and actionable cost outlook for every stage of the decommissioning process.