Rockflow announces the appointment of Joel Turnbull as Developments Advisor, and Expert Witness, bringing more than 30 years of upstream oil and gas experience across development projects, asset management, subsurface management, reserves, and decision and economic analysis.

Joel has held senior technical and leadership positions with major operators including Tullow Oil, Sasol, Nexen, CNOOC, Total and Fina, working across diverse geographic and geological settings. He has been personally responsible for multiple greenfield and brownfield projects, both facilities-based and wells-based, and has overseen subsurface management of many fields at every stage of the lifecycle.

Most recently, Joel served as Developments Manager at Tullow Oil, leading the Ghana Business Unit’s subsurface and major projects departments. He played a pivotal role in delivering a successful multi-year rig campaign that doubled production from 50,000 to 100,000 bopd, alongside overseeing the $250m Jubilee South East subsea project and advancing the TEN Enhancement Project. He also initiated enhanced oil recovery studies and shaped long-term area development strategies for both Jubilee and TEN.

A founder member of the European Chapter of the Society of Petroleum Evaluation Engineers (SPEE) and active member of the Society of Petroleum Engineers (SPE), Joel has deep knowledge of regulatory requirements and good industry practices in reserves and resources evaluation and reporting.

Joel has also developed a unique asset management training course tailored to the needs of those taking on the responsibilities of managing operated assets.

Commenting on his appointment, Joel said, 
“I am delighted to be joining Rockflow at an exciting time for the company. I look forward to contributing my experience in asset management and field development to help clients make robust decisions and maximise the value of their resources.”

Andy Spriggs, CEO of Rockflow, said 
“Joel’s deep technical expertise and industry knowledge,  makes him an excellent addition to Rockflow’s growing Expert Services practice team. His expertise in asset management, reserves, and field development strategy will further strengthen our dispute resolution capacity, and also as an experienced practitioner, improve our ability to deliver trusted advice and decision assurance to clients worldwide.”

Rockflow, is an independent energy consulting company with a highly experienced, multi-disciplinary team who diagnose subsurface geological, technological and commercial challenges. Specialists in solving multifaceted problems, they provide unbiased assessment and speak with authority at the highest level. In dispute resolution they are impartial technical experts.

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