Jason Ewles

Experience

• 

  Chevron

  Oct 1991 - Sept 2006

  Advisor, Reservoir Engineering

  2003-2006 Houston, U.S.A.. Reservoir Engineering Advisor, Tombua-Landana development project in Angola, West Africa.2002-2003 London, U.K.. Senior Reservoir Engineer, North Buzachi development project in Kazakhstan.2000-2002 Norway & Bahrain. Senior Reservoir Engineer, business development.1997-2000 California, U.S.A.. Global Well Test Engineer1991-1997 Aberdeen, U.K.. Various positions, offshore and onshore, in Reservoir, Production and Drilling.

• 

  Hess Corporation

  Sept 2006 - Aug 2013

  Accountable for all subsurface activity within the Global Unconventional Production organization. The Bakken, North Dakota, was the largest asset with a $3 billion capital spend in 2012 and an active 15 rig / 200+ annual well program. The project involved simultaneous appraisal, depletion planning and development activities over a ten thousand square mile area in nano-darcy rock. Challenges included evaluating well performance for production forecasting and reserves, optimizing well design for lateral placement, well length and hydraulic stimulation, determining infill density and project execution with a large number of multi-discipline interfaces. Other significant assets included the EagleFord Shale, Utica Shale, and Permian CO2 flood.• Member of the Business Unit leadership team (business strategy, planning and delivery) and the Global Subsurface Directors Network (Resourcing, Talent Management, Workforce Planning, Performance Management, Compensation Planning, and Employee Development).• Technical authority within the business unit for subsurface technical studies, evaluations and reservoir management and development plans; three Subsurface Manager direct reports and technical group of approximately 75 multi-discipline professionals.• Responsible for the preparation, delivery, and stewardship of Field Development Plans and coordinating the preparation of Asset Value Plans (AVP).• Technical authority for certifying and submitting business unit reserves. • Effective regular interfacing with Hess senior executives (CEO, E&P President). • Instrumental in building organizational capability, both in terms of resources and processes, through the Global Subsurface Directors Network. In addition to talent management, the Network was responsible for establishing standard practices and procedures, developing technical workflows and chairing forums to advance technical knowledge. Show less Led the subsurface department within the producing region; three Subsurface Team Lead and two Non-Operated Joint Venture Manager direct reports, and technical group of approximately 25 multi-discipline professionals. Significant operated development and exploration activity in Russia through Hess affiliate Samara-Nafta. Primary non-operated U.K. assets included Schiehallion, Clair, Beryl, Bittern, ECA, Bacton and Everest-Lomond. Azerbaijan included non-operated interest in Azeri–Chirag–Guneshli (ACG). Regional production of approximately 100,000 boepd net. Show less

  • Subsurface Director, Unconventional Resources

    Jun 2011 - Aug 2013

  • Subsurface Manager, Americas

    Jun 2010 - Jun 2011

  • Subsurface Manager, UK Russia & Azerbaijan

    Sept 2007 - Jun 2010

  • Subsurface Team Leader, Northwest Europe

    Sept 2006 - Sept 2007
• 

  Petrofac

  Aug 2013 - Nov 2023

  Technical Director with accountability to ensure that all Subsurface, Drilling and New Field Development technical work undertaken in Petrofac Malaysia is fit-for-purpose for the optimum reservoir management and effective reservoir development of fields within PM304. The Technical Director is accountable for the preparation, delivery, and stewardship of both Reservoir Management and Field Development Plans, including reserve and resource management, annual capital and expense budgets and production forecasts to meet business goals and objectives, and for maximising the value, and stewardship through to financial investment (FID) sanction, of pre-development assets. Responsible for the delivery of drilling campaigns for asset development. Show less Accountable for providing functional support to all Subsurface discipline individuals in the various business units, facilitating individual growth and career development, driving consistency of process and sharing of best practice and ensuring that IES corporate centre’s expectations of subsurface evaluation quality are realised. • Led a global organization of ~70 subsurface discipline professionals through a period of significant change (low oil price environment, Mexico Energy reform and contract migration, corporate strategy change, asset sales) while delivering operated production of ~50 mboepd.• Provided functional oversight and assurance to enable delivery of high quality, fit-for-purpose subsurface technical work to underpin a significant investment program in the global business.• Delivered a $0.5bn divestment programme in Mexico (partial) and Tunisia in support of the business strategy. Generated technical activity sets and profiles, data room construction, management presentations and buyer interfacing. An asset divestment process is currently ongoing in Malaysia. Show less Mandated to build a corporate centre subsurface capability to evaluate new business opportunities, to provide a highly skilled technical resource to the operating assets, and to provide a transitional operating capability for new assets within the IES global portfolio.• Increased the technical capability of the corporate centre subsurface organisation to 35 multi-discipline professionals and created a structure focussed on technical discipline Chiefs and Project Delivery Managers to deliver business requirements. • Accountable for the quality and delivery of all work products emanating from the Subsurface Development technical teams, including Business Development opportunity evaluation, asset technical support (reservoir characterization, geocellular models, simulation models, forecasting, business plans, reserves and development planning) and corporate reporting.• Advisor to Divisional Risk Review Committee on subsurface characterization, including risk and uncertainty quantification and mitigation plans for investment decisions.From April 2016 to July 2017, seconded to the operating centre of Villahermosa, Mexico as Technical Director. Additional responsibility of reservoir management and development of Petrofac Mexico’s four operated assets, as well as a mandate for increasing the technical quality and capability of the local organisation.• Led development of the Santuario Northeast greenfield Field Development Plan (FDP), a $500 million project, facilitating both migration of the asset to a Production Sharing Contract (PSC) and partial sale of the business.• Led development of revised FDPs for Magallanes and Arenque assets as part of contract migration to PSC. Proposals accepted by Pemex and submitted to national regulator. • Extensive one to one technical coaching of subsurface staff, including reservoir surveillance, reservoir management, reservoir development planning and the implementation of SPE-PRMS based reserve & resource evaluation. Show less

  • Technical Director - Petrofac Malaysia

    Jan 2020 - Nov 2023

  • Global Head of Subsurface - Integrated Energy Services

    Dec 2017 - Jan 2020

  • Vice President Subsurface Development & Technical Director, Mexico

    Aug 2013 - Dec 2017
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  EnQuest

  Nov 2023 - now

  Technical Director