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Meet the Team

To achieve success globally, you need the best people locally who are dedicated to enabling safer and more productive access to energy—one well at a time.

John Costine

John Costine - Global Director, Sales and Marketing

Based in Oklahoma, John supports customers across the Gulf of America/Mexico and other US regions, while managing Centek’s global sales team and leading all marketing strategy. Drawing on his technical expertise in cementing and casing tools, he works closely with operators to understand their well challenges and identify suitable centralization solutions. John connects customers with Centek’s engineering and support teams to help improve casing runability, cement placement, and well integrity.

Email +1 (720) 539-9770
Lorena New Copy 2

Lorena Hernandez - Regional Sales Manager - Latin America & Mexico

With nearly six years of proven leadership at Centek Group since October 2019 in Bogotá, Lorena Hernandez brings a powerful blend of sales excellence, customer satisfaction focus, and deep operational insight to her role overseeing Latin American and Mexican markets. Prior to joining Centek, she spent over seven years as a General Field Engineer at SLB, honing her expertise in field operations and sales processes.

Email +57 (311) 811-1052
Michael Kowalczyk

Michael Kowalczyk - Regional Director - Middle East

Michael Kowalczyk leads Centek’s business across the Middle East, bringing more than 15 years of experience in commercial leadership, international business development, and strategic account management within the energy sector. Throughout his career, he has managed complex regional operations, strengthened market presence across multiple countries, and built long-standing relationships with operators and service companies.

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Stuart Forrester

Stuart Forrester - Senior Technical Advisor - MENA

Stuart brings over two decades of experience in the oil and gas industry, with a strong technical foundation in welding, fabrication, offshore drilling, and subsea engineering. Since joining Centek in 2004, Stuart has progressed through multiple roles, from European account management to overseeing key markets across the Middle East and Asia Pacific. His deep understanding of well construction challenges and commitment to customer support have been instrumental in expanding Centek’s global reach.

Email +971 (0) 56 662 5911
Shaun Mountain

Shaun Mountain - Regional Sales Manager - Norway & UK

Shaun is a highly experienced industry professional with a deep understanding of oilfield operations, engineering, and customer service. Over his career, Shaun has built a strong reputation for delivering technical excellence, fostering long-term partnerships, and driving performance improvements across multiple regions. Shaun’s practical expertise, combined with his focus on collaboration and continuous improvement, ensures Centek continues to set the standard for quality, reliability, and excellence in every project.

Email +44 (0) 7757 667 873
Rugaya Salim

Rugaya Salim - Regional Sales Manager - APAC

Rugaya brings over a decade of experience in both technical and commercial roles within the oil and gas industry. Based in Kuala Lumpur, Rugaya holds a Master’s in Manufacturing Management from Universiti Kuala Lumpur and has expertise in contract management, project leadership, and strategic business development. She is dedicated to delivering tailored solutions and strengthening customer relationships across diverse markets. Rugaya’s analytical mindset and passion for innovation play an important role in advancing Centek’s performance and regional growth.

Email +6014 3930489
Chris Lee

Chris Lee - Regional Sales Manager - Permian

Chris has over 15 years of experience in oilfield sales, business development, and customer relationship management. Based in Texas, Chris has a strong background in supporting drilling operations and delivering reliable solutions to meet complex well construction challenges. His hands-on industry experience and customer-first approach ensure operators across the region receive the highest level of technical and commercial support.

Email +1 (432) 349-0704
Andy Boulcott

Andy Boulcott - Engineering Manager

As Engineering Manager Andy leads the design and development of Centek’s advanced centralization technologies. With nearly two decades of experience at Centek and a strong background in mechanical engineering, Andy oversees the full product lifecycle — from concept and simulation through to testing and field validation. In addition to his leadership role, Andy is also an Applications Specialist, regularly travelling to customer sites worldwide to provide hands-on support and guidance on testing protocols.

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Marius New

Marius Boncutiu - Applications Specialist

Marius is an Applications Specialist, providing expert technical support to customers around the world on centralizer selection, placement, and performance. With many years of experience in the oil and gas industry, Marius combines deep engineering knowledge with practical field insight to help operators achieve optimal well integrity and efficiency. His global experience and customer-focused approach make him a trusted partner in ensuring the successful deployment of Centek products in even the most challenging well environments.

Email +40 7221 214 75

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