+44 (0) 118 982 0151
From prognosis
to P&A
We help our clients achieve success in every well.
Stag has delivered value in Well Operations around the globe for over 30 years.
We are Wellbore Domain Experts, and deliver technical and personnel services for oil, gas, carbon storage and geothermal wells throughout their full life cycle.
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​​Explore our website and discover a leading global Wells consultancy.
1995
Established
170
Geoscientists and Engineers
23
Nationalities
6
Continents
We are decommissioning and repurposing experts.
200+
Wells since 2018
50+
Fields
20+
Operators
3
Continents
We provide class-leading Training and Competency Management Solutions.
Our Well Geoscience Courses have been accredited by the Geological Society of London and our Competency Management System is the first dedicated Well Geoscience CMS in the global Oil and Gas Industry.​​
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Introduction to Geology
Drilling and Wellsite Geology
Operations and Wellsite Geologist
Basic Log Interpretation
Formation Pressure Evaluation
Best Practices in Core Handling & Analysis
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Well Geoscience Competency Management System
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We are a qualified, independent and global supplier.
We are an independent supplier pre-qualified with SeQual, Achilles and all major procurement platforms. We achieve frictionless contracting without complexity or ambiguity.​
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We hold ISO:9001 Quality Management Certification from DNV and we are Members of the International Association of Drilling Contractors.
We understand our responsibilities.
4
Global Offices
24/365
Operational Support
2000+
Mobilisations/year
0
LTI (2025)
Contact Us
Inquiries
For all inquiries, please call +44 (0) 118 982 0151 or email stag@stag-geological.com.
Europe (Head Office)
​3 Fortuna Court
Calleva Park, Aldermaston
RG7 8UB
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Tel: +44 (0) 118 982 0151
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New Business: chris.jacobson@stag-geological.com
Employment
Get in touch: +44 (0) 118 982 0151
We support you Globally.
Enquiries
For new business enquiries, please call +44 (0) 118 982 0151 or email stag@stag-geological.com.
Head Office (Europe & Americas)
​3 Fortuna Court
Calleva Park, Aldermaston
RG7 8UB
United Kingdom
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Tel: +44 (0) 118 982 0151
Qatar (Middle East)
Al-Jaidah Square Building
Airport Road
Doha
PO Box 55743
Qatar
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Tel: +974 4426 7432
Aberdeen (North Sea)
​Westpoint House
Prospect Park
Prospect Road
Arnhall Business Park
Westhill
AB32 6FJ
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Tel: +44 (0) 1224 766 948
Perth (Oceania)
Suite 22
Como Corporate Centre
11 Preston Street
Como
WA 6152
Australia
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Tel: +61 8 9368 7468
Employment
We are always happy to hear from experienced geologists and engineers with a background in O&G well operations, decommissioning, carbon storage or geothermal drilling. To be considered for a role with us, please send a cover letter together with your C.V. to: stag@stag-geological.com.​
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