SLB

SLB ·Energy, Oil & Gas Equipment & Services, United States

SLB (SLB)

Overview

SLB (formerly known as Schlumberger, and still legally incorporated as Schlumberger N.V.) is the world's largest oilfield services company, providing technology, equipment, and services used throughout the lifecycle of oil and gas exploration and production, and increasingly for adjacent energy transition and data center infrastructure markets. Headquartered in Houston, Texas (with historical roots and dual headquarters presence in Paris and other locations reflecting its century-old international origins, founded in 1926), SLB operates in more than 100 countries and is classified in the Energy sector, Oil & Gas Equipment & Services industry. The company employed approximately 109,000 people and generated full-year 2025 revenue of roughly $35.7 billion, down modestly (about 2%) from $36.3 billion in 2024, reflecting a softer year for global upstream drilling activity even as SLB pushed into new growth areas like AI-driven digital solutions and data center thermal management.

What They Do & How They Make Money

SLB makes money by helping oil and gas companies find, extract, and produce hydrocarbons more efficiently, charging for a mix of technology licensing, equipment sales, and outsourced technical services across the entire well lifecycle. In practice this spans an enormous range of activities: running seismic and subsurface data interpretation software and services to help customers decide where to drill; providing the drilling technology, drill bits, and directional-drilling expertise needed to actually bore a well; supplying downhole equipment, chemicals, and engineering services to complete and stimulate a well so it will produce; and providing the pumps, valves, and production equipment that keep oil and gas flowing to the surface over a well's operating life. Much of this work is performed under service contracts with national oil companies (like Saudi Aramco, ADNOC, and Petrobras) and international oil majors (ExxonMobil, Chevron, Shell, etc.), with revenue tied closely to how much these customers are spending on drilling and production activity — a figure that rises and falls with oil and gas prices and global energy capital expenditure cycles. In recent years SLB has pushed to diversify and de-cyclicalize its revenue base by growing its Digital division (cloud-based subsurface software, AI-powered exploration and production analytics) and by expanding into adjacent markets such as carbon capture, geothermal energy, and — most notably as of 2025-2026 — data center infrastructure, leveraging its industrial engineering expertise (including its planned acquisition of Kelvion, a thermal management company) to serve the fast-growing AI data center cooling market.

Business Segments

SLB reports its business across four main divisions:

Well Construction (~$11.86 billion in FY2025, roughly 33% of revenue, down 11% YoY): Drilling technology, drill bits, drilling fluids, and directional drilling/measurement services that get a wellbore built. Historically SLB's largest division, though it saw the sharpest decline in 2025 as drilling activity softened, particularly in North America.
Production Systems (~$13.33 billion in FY2025, roughly 37% of revenue, up 12% YoY): Surface and subsurface production equipment, artificial lift, and completions/production chemicals — now SLB's largest division, boosted significantly by the 2025 acquisition of ChampionX (a production chemicals and equipment company), which contributed roughly $1.46 billion of 2025 revenue.
Reservoir Performance (~$6.82 billion in FY2025, roughly 19% of revenue, down 5% YoY): Services related to evaluating and optimizing hydrocarbon reservoirs, including well testing, stimulation, and intervention services designed to maximize production from existing wells.
Digital (~$2.66 billion in FY2025, roughly 7% of revenue, up 9% YoY): Software and digital platforms — including cloud-based subsurface data and AI/analytics tools — that help customers plan, model, and optimize exploration and production decisions; SLB's fastest-growing and highest-margin division, central to its strategy of building more resilient, less cyclical revenue.
All Other: A smaller residual category (~$1.99 billion in FY2025) capturing businesses that don't map cleanly to the four core divisions.

Competitors

SLB competes in the global oilfield services industry, an industry historically dominated by a small number of large, full-service integrated players plus a long tail of specialized equipment and service providers:

Halliburton — SLB's closest and largest direct rival, competing across nearly the full spectrum of well construction, completion, and production services, particularly strong in North American land drilling and hydraulic fracturing.
Baker Hughes — the third of the traditional "Big Three" oilfield services companies, competing broadly but with particular strength in turbomachinery, LNG-related equipment, and oilfield equipment manufacturing.
Weatherford International — a smaller, more specialized competitor that emerged from bankruptcy restructuring, competing in well construction and production-related services.
National oilfield service companies and regional players — including Chinese state-owned service companies and various specialized independents that compete on price in specific geographies or service lines.
In-house capabilities of national oil companies — some large state oil companies (e.g., Saudi Aramco, PDVSA) perform certain services in-house rather than outsourcing to SLB and peers, representing a structural alternative in some markets.
In its newer data center/thermal management push, SLB will increasingly compete with established industrial cooling and thermal management companies as it integrates Kelvion and expands beyond its traditional energy customer base.

Competitive Position

SLB's core competitive advantage is its unmatched global scale, technology breadth, and deep relationships with national oil companies and majors across virtually every major oil and gas basin in the world — a position built over a century and reinforced by heavy, sustained R&D investment that smaller competitors struggle to match. Its Digital division gives it a differentiated, higher-margin, software-like revenue stream that helps offset the inherent cyclicality of its equipment- and labor-intensive service businesses, and its international/offshore-weighted portfolio (as opposed to Halliburton's heavier North American land exposure) has historically provided somewhat more stable, longer-cycle revenue since international and offshore projects tend to have longer planning horizons and are less sensitive to short-term commodity price swings than U.S. shale activity.

The primary risks facing SLB are the ones inherent to any oilfield services business: revenue and profitability are fundamentally tied to customer capital spending decisions, which in turn depend on oil and gas prices, a notoriously volatile and cyclical variable outside SLB's control — as evidenced by the roughly 2% revenue decline in 2025 amid softer drilling activity. Longer term, the global energy transition away from fossil fuels poses a structural question mark over the size of the addressable market for core oilfield services, which is part of why SLB has been actively diversifying into carbon capture, geothermal, and now AI data center infrastructure (the Kelvion acquisition for roughly $3.4 billion being the clearest recent example). Execution risk on these newer, unrelated business lines is real — thermal management for data centers is a different customer base and competitive set than oilfield services — but if successful, this diversification could meaningfully reduce SLB's dependence on the oil and gas capital spending cycle over time. The company also faces ongoing consolidation dynamics in its core industry (its own large ChampionX acquisition being one example) as service providers seek scale efficiencies in a maturing, more selectively growing global E&P spending environment.