Dave Mackay


Dave has a total of 34 years experience in a wide range of drilling engineering, supervision and management positions. He has worked and lived around the world including UK, USA, Spain, Denmark, Tunisia, Indonesia, Vietnam, Australia, Philippines, Algeria, Dubai and Pakistan.

His broad experience includes;

  • Deepwater and ultra-deepwater explorationand development
  • HPHT drilling operations and ultra-HPHT planning
  • Subsea completions
  • DP Drillships and Semi-submersibles, moored semi-submersibles,jack-ups, platforms and land rigs
  • Remote locations; offshore and onshore including areas with severe security problems
  • Horizontal wells
  • Carbonate and H2S drilling
  • Highly environmentally sensitive locations, onshore and offshore

Dave graduated from Aberdeen University with a BSc in Engineering. Following an initial spell with Chevron UK, Dave has worked for a number of Operators around the globe both large and small. He has on a number of occasions established entire drilling teams and operations from scratch for clients with no previous experience as an Operator. In recent years Dave has specialised in the planning and operation of leading edge wells in the deepwater, ultra-deepwater and HPHT arenas. Dave is currently working on projects in Australia and the Falkland Islands.

Richard Clarke

CEng, BSc (Hons), FGS, FIMMM, SPE

Over the past 34 years Richard has built up a wealth of diverse drilling and work over experience working for a number of Operators in engineering, supervisory and management positions on onshore and offshore projects in the UK, USA, Holland, Italy, Thailand, Oman, Trinidad, Pakistan, Algeria, Egypt and Colombia and has experience in most types of oil and gas exploration and development wells and rig types.

Born in Essex in the United Kingdom, Richard obtained a BSc degree in Geology from Bristol University before joining Shell International as a well site petroleum engineer in 1981.

Following an initial period working on land rigs in Holland as a petroleum engineer, Richard transferred to the drilling department and worked his way up from assistant driller to drilling supervisor working on land rigs in Holland, Thailand and the Sultanate of Oman.

Following his departure from Shell in 1989 he spent five years working for various oil and gas operating companies in the North Sea in both onshore and offshore engineering and supervisory positions including two and half years as a senior drilling supervisor on the Claymore platform for Elf Enterprise Caledonia.

For the last 12 years he has been working on contracts to both large and small international Operators on projects in Algeria, Pakistan, Trinidad, the Gulf of Mexico, the UK, Colombia, Ethiopia, Poland, the Falklands and Equatorial Guinea.

Hazel Rankin

Business Development / Recruitment Manager

Having spent over 30 years in the Oil and Gas industry, Hazel has built up a strong and extensive network of people in the well construction field. Initially she spent 19 years in the service department of Chevron which enabled her to witness the benefits of providing good service to both customers and clients. Following her time with Chevron, Hazel went on to work as an outplacement consultant working on various projects involving a total of 600 employees. Subsequently she was involved with Offshore Emergency Response training and mediation before entering the recruitment field in 2006 working for a specialist recruitment agency supplying well construction consultants globally to oil and gas operators. During this time she was headhunted by a well engineering project management company supplying complete well construction teams for various projects prior to joining REC Consultancy Services.

Gill Corder

Business Manager

Gill has over 25 years experience in Management at a Senior level with organisations including Compass Group. This has allowed her to accumulate a wealth of business knowledge from client/staff relationships to financial acumen.

Her last position before joining REC Consultancy Services Ltd was as Company Director, heading up a prestigious award winning Health and Leisure business employing 250 staff and providing a high level of service to over 15,000 clients.

During that time Gill led the team responsible for gaining Investors in People accreditation along with a National industry award for training.

Holly DaSilva

Consultancy Administrator

Holly graduated in the summer of 2018 from Robert Gordons University where she obtained her honours degree in Management. While studying Holly had a part time job in the service sector for 6 years with almost 3 of those years being in a managerial role.

Within REC, Holly will be working alongside Hazel in the office by completing; CV’s, contracts, visas, work permits and gaining experience within the industry.

Despite this being Holly's first full-time position within the oil and gas industry, she has previously worked for REC. In 2014, Holly completed a summer placement and from there continued to help on an ad-hoc basis to assist with workload increase and holiday cover.