CURRICULUM VITAE

Name: STUART MACKAY

Nationality: British

Residence: United Kingdom

Marital Status: Married

Qualifications: B.Sc. (Hons)

M.Sc. Earth Science; in progress, part time study

Key Roles Project Lead BP Global wells organisation, Global deepwater relief well design and inventory

standardisation.

Senior Drilling Engineer BP, Angola (Deepwater), Libya Deepwater & Land), Oman (land)

Drilling Superintendent: BP Wytch Farm (land),

Drilling Superintendent & Senior Drilling Engineer, DONG, South Arne (Jack up TAD to South Arne production platform) Drilling Superintendent, Total Alwyn North, Platform & coiled tubing drilling

Roles:- BP; Various roles from 2004 - 2015

Feb 2014 to Oct 2015 Project Lead: Project planning, management & project execution Global Standardised Relief Well Design & Standardised Relief Well Inventory, Methods, Drilling programme and global logistics deployment. Project Lead of a multidisciplinary team (Engineering, Subsea Engineering, Capping Containment response, Equipment Integrity Assurance, Procurement Supply Chain Management & Global Finance) for Global Standardisation of Deepwater Relief Well and Equipment Inventory. The project removed the requirement for the BP asset regions to hold relief well equipment in country, generating significant cost benefits and promoting equipment standardisation through the BP assets. Developed project plan for multidisciplinary project with key milestones for reporting to board level on project. Project delivered on schedule and on budget. Evaluation and assessment of the requirement for, and the feasibility of, a single Standardised Global Relief Subsea Wellhead and Tubulars System to deliver effective and fit for purpose Relief Well preparedness and capability across the Global portfolio. Evaluation of the organisational model and logistical support for the long term supply, preservation, storage, maintenance and deployment of a Single, Standardised Central Relief Well System. Evaluation of procurement and design of a standardised global relief well architecture including equipment selection (wellhead system, running tools, casing and tubulars). Development of the logistics model to support the supply of relief well equipment from a central location for global deployment.

Developed procurement strategy with PSCM team for sustainable supply and maintenance of tubulars on a consignment basis (first implementation within BP), engaged with vendors to develop consignment strategy and establish long term relationships to assure supply sustainability and future pricing agreements. Developed procurement strategy for the supply, storage, maintenance and stock rotation of subsea wellheads with the vendors. The procurement strategy involved market assessment, vendor meetings and negotiations with the procurement team and vendors with recommendation to award presented to VP level in the organisation representing the high value of the spend and commitment to the project and to the long term cost benefit of the company. Development of global funding and cost recovery mechanisms recognising JOA and NOC relationships.

Orders placed for Big Bore sub-sea wellhead systems, casing and tubing. Developed logistics and deployment strategy to deploy equipment from a central location in Houston to support BP global assets in the event of a well control incident occurring in any of the BP assets. Successfully tested logistics plan to deploy equipment to the regions utilising Antanov-124 and Boeing cargo planes together with vessels to ship to the regions from Houston. Reporting to Central Engineering Director and area VPs. Feb 2013 - Feb 2014 Project Lead: Global Standardisation of Liner Systems (all equipment required to run and cement a liner in place securing zonal isolation). Leading the multidisciplinary team through the stage gate process for implementation of standardized liner systems.

Review of liner systems equipment reliability (failure analysis and Root Cause Analysis of high value global well failures from the ‘Bad Actors Club”). Definition of the deliverables and processes required to implement standardized liner systems across the global assets. Developed a procurement Market Sector Strategy with the procurement team through the evaluation of systems capability and availability of global suppliers of liner systems. Engaged with regional drilling managers and well engineering team leads to develop standardized systems appropriate for the wide range of operating envelopes represented in the portfolio. Provide assurance standardized systems are compliant with BP standards and engineering technical practices. Developed project planning, reporting and budgetary schedule for project. Reported to the Governance board.

Simultaneous part time role providing assistance to the Global Wells Institute developing capability and competency model for the career development of drilling engineers through to Senior Drilling Engineer. Development of the skill set, competency, experience, training and assessment required for the successful development of the drilling engine over a ten year period. Defining areas of performance road maps for key aspects of career development. March 2012 – March 2013:

Global Wells Organisation, Sunbury.

Lead Drilling Engineer Libya onshore & Deepwater exploration Develop well planning, contract strategy and long lead equipment planning as Force Majeure post revolution was lifted. Planning of challenging rank wildcat exploration wells Deepwater (2000m) wells. The wells are complex with total losses in the overburden with significant H2S content. The wells were planned to be drilled with a 6th Generation drillship. Accountable for review of emergency oil spill response and deployment of the global capping system as part of the Global well control response plan. Lead for procurement of drilling services, casing & tubulars and sub sea wellhead systems. Responsible and accountable for project schedule for procurement of subsea wellheads and delivery to meet start up date of the exploration programme activities. Libya Offshore: Gulf of Sirt Deepwater Exploration campaign Long lead equipment planning for subsea wellhead system, conductor, connectors, casing and tubing. The subsea wellhead system involved extensive riser analysis to consider the fatigue life impact of 6th generation rigs and a six stack BOP system in the Gulf of Sirt. Project lead for integrated geotechnical survey in the Gulf of Sirt to establish geotechnical and Metocean parameters in support of riser analysis and the subsequent wellhead, connector design and weld quality (Class C). The survey was planned as an integrated survey incorporating the Environmental Impact Study over the entire development area. Lead for tender on the provision of the geotechnical survey (first offshore Libya), prepared scope of work, technical evaluation criteria, clarifications, review and recommendation to award contract. Internal reviews of technical spec and led meeting with the Libya NOC on the geotechnical survey and recommendations. Developed geotechnical planning schedule for the project to deliver a geotechnical seabed soil survey for wellhead design and future facilities. Lead for deepwater subsea Big Bore wellheads, developed technical specification to meet the demands of the Gulf of Sirt, worked with the procurement team integrating Libya wellheads into the global deepwater subsea wellhead contract. Reviewed technical bid from vendors, attended clarification meetings, prepared recommendation to award to North Africa contracts board. Libya onshore Ghadames Basin, wildcat exploration drilling campaign (remote location) Libya onshore restart 2013 with long leads and rig selection. Lead for the onshore water strategy, Developed the water strategy (drilling water wells and transportation to drill centres in the onshore region) with a team hydrogeologist, environmentalists, logistics, procurement and civils teams, the supply of water is the key strategic deliverable to drill the exploration wells located in an isolated region of the Ghadames basin where the top hole sections will be drilled with total losses. Lead for tender on the provision of the drilling equipment (Casing, tubulars, wellheads and drilling services {directional}), prepared scope of work, technical evaluation criteria, clarifications, vendor meetings, review and recommendation to award contract presented to North Africa contracts board. Preparation of drilling programme for the wildcat exploration wells. Development and coaching of drilling engineers.

April 2010 – February 2012: Global Projects Organisation, Lead Engineer Angola Deepwater Block 18 & 31:-

Involved in pre feed studies for several core assets in the Eastern Hemisphere. Primary focus on Deepwater drilling in Angola Blocks 18 & 31 and consulting to the Oman team for the Khazzan tight gas development.

Charged with developing economic value to the projects through evaluation of techniques to optimise and enhance the developments. Angola Block 18 & 31; leading the Deepwater drilling development planning of sub salt, salt flank and over pressured field developments in twoAngolanDeepwater blocks (water depth 2300m). Responsible to develop safe and compliant wells over the lifecycle of the well in a Deepwater environment. Responsible for well policy compliance and update of well designs with new engineering technical practices post Macondo. Lead for bid evaluation on liner hanger systems and drilling tools supporting the procurement team with the technical review, clarification submissions and recommendations to award. Oman, Khazzan Block 61 (Middle East’s largest unconventional tight gas field) The Oman, Khazzan Block 61 field development consists of a first phase development of in excess of 300 wells with a requirement for 8 rigs to achieve plateau. The work involved the evaluation of drilling and completion options including hard rock drilling techniques drawing upon BP North American gas experience, pad layout and rig design optimisation. Optimisation of rig time

(horizontal drilling for hard rock environments, evaluation of underbalanced drilling, drilling fluid evaluation (logistics and environmental considerations) frac stimulation evaluation. Developed probabilistic and deterministic time cost models for the development. Wells lead for the rig strategy with the global procurement team to procure 8 land rigs for a phased start up over two years.

Contractor engagement sessions in London and Muscat to work with contractors to develop safe, fast moving, automated desert rigs for two distinct phases of activity; ramp up and full field development. The drive for Omanisation of the operation was a key focus. Develop the strategy for ramp up of rigs to meet production start up, resources and Omanisation to meet the requirements of the Oman MOG. Develop an integrated strategy for the full field development phase of activity to reflect the optimisation potential for drilling, completion and stimulation (high rate water frac and x-linked gel fracs). 2005 – 2010 Wells project Lead, BP Angola Deepwater Blocks 18 & 31 Wells lead for drilling and completions in an integrated, multidisciplinary team tasked with creating operated development opportunities and with driving the Discovery to Sanction (Pre Feed to Feed) for the Angola business unit. The developments consist of multifields with a geographical spread over 75 km with a mixed portfolio of sub salt and salt flank Deepwater fields. Block 18 Platina Chumbo 30 well development, Block 31 41 well development. The capital expenditure and tendering represents one of the major Capex spends globally for BP and indeed for any major oil company. Developed wells project schedule and budgetary plans for the project. Specific development drilling engineering responsibilities include: - well design for the future Angolan developments (casing design, long leads, and trajectory planning). The role involved developing the first development well design for sub salt development wells in Angola in addition to salt flank and near salt well designs. The field designs are, in general developed from single exploration penetrations; there is therefore, a paucity of data to work with to progress development plans.

The sub salt development well design involved developing a programme to characterise the Angolan salts, salt, salt creep analysis and subsequent finite element analysis studies on the impact of salt movement on well integrity over the field lifecycle. The work required collaboration with Geomechanics support staff to develop the model in conjunction with developing analogue data from the basins of Brazil.

Optimisation of field layout design in conjunction with facilities engineers. Optimisation of sand face completion design of multi stacked sub salt reservoirs including multi zone downhole flow control. Peer reviewer of exploration/appraisal wells and other Global Projects including West Nile Delta. Identification of enabling and enhancing technology for future developments. Leading activities to comply with BP's safe and compliant well philosophy expectations, including No Drilling Surprises and Front End Loading Assessments. Preparation of development well capital and operating cost estimates using a probabilistic multiwell estimating model (crystal ball) and benchmarking of model results.

Support to Angola Future Developments Programme initiatives (standardisation) on well design, contracting strategy, and technology planning including managed pressure drilling (MPD), continuous circulation system (CCS) Deepwater multilaterals and multiple downhole flow control for stacked reservoirs. Completions are stand-alone screens and open hole gravel packs. Developed exploration & appraisal drilling programmes to ensure development drilling learning opportunities such as characterising the overburden are engrained in the exploration and appraisal drilling programmes. Attend daily rig calls and planning meetings for the execution of exploration and appraisal wells. Ensure the lessons learned from the exploration/appraisal drilling campaign are captured in development well planning. Review of drilling practices from BP operated Block 18 Greater Plutonio development and implementation into the future basis of design for Block 18 future developments.

Developing and coaching of staff drilling engineers. Presentation of well designs to partners and concessionaire at technical committee meetings. Peer reviewer of joint venture developments in Angola Block 32, 17 and 15. Peer review of exploration wells failure mechanisms. 2004 - 2005

Lead Drilling Engineer (Operations)

BP Angola, Deepwater, Deepwater, Block 18

Preparation of the well programme for a Deepwater (1650m) exploration well. Preparation of well design (casing, trajectory, fluids, cement & testing), for an enhanced capability new build rig

(Sedco Express). Evaluation of well control policy for Deepwater drilling and subsequent application for dispensation from BP well control policy for the exploration well. The well was successfully drilled in 2005. I then moved to role as Lead engineer for development well planning of multi field FPSO developments, offshore Angola Deepwater Block 18 and B31 including sub salt development.

The first development planning was Block 18, a follow on from the exploration well drilled at Chumbo. The Platina Chumbo development is a 4 field development of 30 wells. This was followed by work on Block 31, a 5 field development of 41 wells composed of near and sub salt wells. Developed the basis of design for Block 18 consisting of well design by field for each field development including casing design, trajectory planning, fluids, cementing and long lead item identification.

Highlights:

Successful drilling of a Deepwater exploration well in water depths of 1650m. Prepared the basis of design for a 43 well Deepwater development of 8 individual fields, including salt flank and over pressured fields as part of the development. The developments are in water depths 1600 - 2300m

Developed a pivotal strategy characterising the Angolan salt bodies. Characterisation of the salt was pivotal to optimising the life cycle casing design for sub salt wells in Block 31. 2004 Chevron

Consultant Senior Drilling Engineer - New technology Short term contract (3 months) for the evaluation and implementation of new technology across the North Sea assets of Chevron, with emphasis on expandable casing. Prepared and presented findings on the evaluation of expandable casing to management, subsequent implementation of recommendations by Chevron.

2001 – 2004

Drilling Superintendent / Senior Drilling Engineer DONG E&P A/S, Copenhagen, Denmark

The Syd Arne field is complicated through the presence of a gas cloud in the overburden masking the seismic character of the reservoir. The reservoir is a complex, narrow, highly fractured and compartmentalised chalk reservoir requiring the drilling of +3km horizontal sections to connect the compartments with the requirement for acid stimulated zonal isolation completions. Drilling is complicated as a result of the inability to model well trajectories because of the gas cloud, resulting in numerous geological side-tracks. The wells are steered by palynology and palaeontology. The wells are further complicated by the fracture pressure being close to or at pore pressure resulting in drilling at or close to an underbalanced state with a mud cap. Drilling is by a jack up alongside the production platform with the resultant inherent logistical complications. The organisational structure of the team was complicated by the fact that the subsurface team was from the partner company and located 20km from the drilling team location. Consultant Drilling superintendent

Primary responsibility for working with Ensco to utilise and optimise the enhanced facilities of the Ensco-101. Contractual negotiation with Ensco for safety and performance improvements. Day to day operational supervision of challenging ERD horizontal chalk reservoir wells. Safety management of the rig.

Consultant Senior Drilling Engineer

Responsible for the planning, execution and lessons learned for each well. Responsible for the preparation of the well proposal in conjunction with the sub surface team, drilling programme and AFE. Execution of the well and day to day support of the operation including torque and drag modelling, hydraulics modelling and directional drilling monitoring using compass. Presentation of well results to partners and Danish government representatives. Responsible for the upgrade of CRI facilities to comply with zero discharge and maximise drilling in the overburden. Examined methods to improve performance including underbalanced drilling and expandable casing. Underbalanced drilling was subsequently adopted in 2007 on Syd Arne. Mentoring staff drilling engineers.

Highlights

At short notice prepared a well proposal, drilling programme, and mobilised a jack up to drill a complex well to appraise an extension of the Syd Arne Field. The appraisal well was drilled from a common drilling centre with three appraisal legs drilled from the 13 3/8" casing shoe The final horizontal section was over 3.5 km, the entire reservoir section was successfully cemented for isolation from future producers, a world record cement job at the time. This work was undertaken with a very small team in a short time frame and was a technical and commercial success.

2000 – 2001

Consultant Drilling Superintendent / Senior Operations Engineer BP Wytch Farm, Dorset, UK

Dual role, as SDE & Drilling Superintendent.

Responsible for the evaluation of a new drilling unit to undertake infill drilling on Furzey Island, Wytch Farm Field. The drilling rig was working in one of the most environmentally sensitive sites in Europe and required considerable modification to operate in this environment. Embedding BP safety culture was the main objective, worked with the rig crew prior to operations on site targeting safety culture, operations start up delayed until the safety culture from the health safety and environment was fully established.

Rig intake required evaluation of potential rigs and the evaluation of new build slim rigs capable of operating in the environmentally sensitive area. Worked with the procurement team to prepare contract strategy, contract negotiations with rig vendors working with procurement team to develop rig audit and mobilization of drilling rig to remote location on Furzey Island in Poole harbour. Responsible for day to day operations of the rig as SDE/DS including preparation and execution of drilling programme. AFE preparation, monitoring and cost control. 1996 – 2000

Drilling Superintendent / Senior Drilling Engineer/ Coiled Tubing Drilling Project Manager, Total Oil Marine, UK May 1999 – August 2000

Drilling Superintendent

Responsible for operations on the twin derricks of Alwyn North. Accountable for delivering an incentivised drilling contract (performance/HSSE). Responsible for upgrading the drilling facilities on Alwyn North including cuttings re-injection TDS systems on the twin derricks. Responsible for worker campaign for re-completion and P&A of mature Brent wells. Key responsibility and accountability for safety of SIMOPS and relationship with contractor on safety performance.

Highlights:

Successful contract negotiation with Foramac for re-starting drilling on Alwyn with performance driven contract in place. Safety performance higher than expectation. Installation of new TDS and CRI systems on the rig on time and on budget.

Oct 1998 – Sept 1999

Coiled Tubing Drilling Project Leader

Responsible for the first coiled tubing drilling well for Total globally. The project involved the establishment and negotiation of contracts for the operation. Developed the integrated project schedule for delivery of the coiled tubing drilling project against hard milestones to tie in with platform activities and window for heavy coiled tubing lift. Managed the core planning team composed of representatives from the major contracting companies involved in the operation (coiled tubing, whipstocks, directional and fluids). The team developed a programme of onshore trials using a mock-up of the Alwyn platform layout from which lessons were learned and incorporated into the execution programme; the trials involved the active participation of the DTI and HSE in order to secure their early engagement, support and approval of the coiled tubing drilling activity. These duties were performed simultaneously with the duties as the Alwyn Drilling Superintendent.

The coiled tubing operation was a simultaneous operation performed concurrently with the Triassic drilling programme.

Author of Paper: Coiled tubing drilling cost-efficient in chasing Alwyn's small oil pockets, Offshore, April 2000

Highlights:

A very successful technical, safe and commercial operation, overcame significant technical challenges, the well-produced at the highest rate on Alwyn for a twelve month period. May 1996 – Oct 1998

Senior Drilling Engineer / Drilling Superintendent Responsible for drilling on the Alwyn North Platform. Worked on the Triassic extended reach, high temperature project. This project involved the drilling of a highly depleted Brent and Triassic reservoirs prior to penetrating the objective reservoir. The second phase of development involved ERD wells with a step out of 8km and deep horizontal side-tracks. Responsible for well design and equipment procurement. Preparation of the technical specification and FAT for a new wellhead design [upgrade for high pressure]. Day to day supervision of operations. Responsibilities included budgets preparation and monitoring costs, post well analysis and AFE preparation. Supervision of offshore and onshore Drilling Engineers.

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