SLB (formerly known as Schlumberger) is a technology company that supplies digital solutions and technologies for the energy industry. It operates through four divisions: Digital and Integration, Reservoir Performance, Well Construction, and Production Systems. The Digital and Integration division offers digital, exploration data, data processing, and asset performance services. The Reservoir Performance division provides wireline, testing, stimulation, and intervention solutions. The Well Construction division delivers drilling and measurement, well cementing, integrated well construction, etc. The Production Systems is responsible for subsurface production and midstream production systems, as well as subsea and surface equipment and services.