Steven Coombs, Principal Consultant and Operations Director, is a degreed Petroleum Engineer with 37 years of experience in a wide range of petroleum engineering disciplines, including reservoir, production, drilling, operations planning and execution, cost estimating, and project management. Steve has broad experience working for E&P companies. Steve has considerable experience working on decommissioning planning and cost estimating in general and is a specialist in well P&A. Steve has been involved in decommissioning engineering and planning on projects in all major regions of the world involving 100¹s of platforms and wells along with associated facilities (including on-shore infrastructure and facilities such as refineries, LNG plants, etc). Steve has considerable experience in developing probabilistic (Monte Carlo) models for both cost estimating and oil and gas projects in general.