Schlumberger is a leading provider of technology for reservoir characterization, drilling, production and processing to the oil and gas industry. Working in more than 85 countries and employing approximately 100,000 people who represent over 140 nationalities, Schlumberger supplies a comprehensive range of products and services, from exploration through production and integrated pore-to-pipeline solutions for hydrocarbon recovery that optimize reservoir performance. It has principal offices in Paris, Houston, London and The Hague, and reported revenues from continuing operations of $30 billion in 2017.