Author - Nathan Tarrant

Nathan has worked in financial services and strategic financial and investment growth for over 30 years. He was the founder and COO of a Queen’s Award-winning financial services company based in the UK, and a capital investment company specializing in oil and gas investments, based in Virginia, USA.

He served as a financial and alternative investment advisor to delegates of the UN, World Health Organization, and senior executives of Fortune 500 companies in Geneva, Switzerland, following the 2008 financial crash.

Today, he specializes in alternative investments—researching niche asset classes, publishing investor-focused insights, and supporting capital-raising efforts for select investment providers through strategic content and market positioning.

Oil and Gas Glossary

Gamma Ray

Gamma Ray (GR) logging measures natural radioactivity in rock formations to identify lithology and shale content. High gamma-ray readings typically indicate...

Oil and Gas Glossary

Leak-Off Test

A Leak-Off Test (LOT) measures the pressure at which a drilling fluid causes the formation to fracture. It helps determine the safe mud weight and maximum...

Oil and Gas Glossary

Formation Integrity Test

A Formation Integrity Test (FIT) evaluates the strength and pressure-bearing capacity of a wellbore’s formation. It ensures the rock can withstand drilling or...

Oil and Gas Glossary

Drill Stem Test

A Drill Stem Test (DST) is a procedure used during drilling to evaluate the potential productivity of a reservoir. It measures pressure, permeability, and...

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