Evidence linked
AI & analytics
Ambyint
Physics-informed artificial-intelligence platform for monitoring and optimizing artificial-lift performance on producing wells.
The open energy company directory
The field atlas for energy.
Find the operators, crews, infrastructure owners, engineers, traders, AI builders, data providers, and software companies that make the energy system work.
66company profiles
13industry sectors
193cited claims
Navigate the system
Follow energy through the companies that touch it.
Move from production through transport, conversion, and power—then inspect the service and intelligence layers wrapped around the physical system.
Energy system / company graph Live edition 01
Intelligence layer
Companies are connected by the work they perform—not by private customer relationships.
Browse the industry
13 sectors. One connected directory.
01
Operators
Companies that explore for, develop, and produce oil and natural gas, from basin-focused independents to integrated global operators.
02
Field services
Service, technology, and equipment companies that help plan, drill, complete, evaluate, produce, maintain, and decommission energy assets.
03
Midstream
Owners and operators of gathering, processing, pipeline, storage, fractionation, and terminal assets that move energy between production and demand.
04
LNG & gas
Companies focused on gas supply, liquefaction, regasification, shipping, marketing, and the infrastructure connecting regional gas systems to global demand.
05
Downstream
Refiners, fuel marketers, and processors that convert crude oil and other feedstocks into transportation fuels, chemicals, and specialty products.
06
Power & grid
Utilities, generators, grid-technology businesses, and power-market participants that produce, move, balance, and sell electricity.
07
Low carbon
Developers, operators, manufacturers, and technology firms working across renewable generation, storage, hydrogen, carbon management, and emerging fuels.
08
AI & analytics
AI-native and advanced-analytics companies applying forecasting, computer vision, optimization, robotics, and industrial machine learning to energy operations.
09
Data & research
Data, research, and market-intelligence providers that organize energy fundamentals, prices, assets, flows, forecasts, and commercial context.
10
Engineering & EPC
Engineering, procurement, construction, and project-services companies that design and deliver large energy and industrial assets.
11
Trading & logistics
Commodity merchants, marketers, shipping companies, and logistics specialists that connect physical energy supply with customers across locations and time.
12
Software
Software companies serving specialized energy workflows such as production economics, commodity trading, scheduling, risk, settlement, and field operations.
13
Adjacent businesses
Businesses outside the core supply chain with a documented role in energy-related services, capital markets, mobility, communications, or education.
Across the graph
Start with an evidence-backed profile.
Evidence linked
Field services
SLB
Global energy-technology company providing subsurface, well-construction, production, digital, and decarbonization technologies.
Evidence linked
Midstream
Kinder Morgan
Diversified North American energy infrastructure operator spanning pipelines, storage, terminals, and bulk-material logistics.
Evidence linked
Power & grid
NextEra Energy
Energy company combining a regulated Florida electric utility with a broad generation and infrastructure-development business.
Evidence linked
Data & research
Novi Labs
AI-driven upstream and energy-intelligence platform connecting well data and predictive production models with economics and market context.
Evidence linked
Operators
EOG Resources
Independent oil and natural-gas producer with a multi-basin U.S. unconventional portfolio and selected international operations.
Decision guides
Turn a company list into a working system map.
01 / sector guide
Oilfield service companies: how the service sector is organized
A map of oilfield service companies by role: integrated majors, completions, pressure control, subsea, intervention, drilling, and compression.
02 / sector guide
Frac companies: who runs hydraulic fracturing in North America
How frac companies differ: pressure-pumping fleets, owned sand and equipment, wellhead and valve suppliers, and the data each one leaves behind.
03 / sector guide
Drilling contractors and the companies around the rig
How drilling contractors, bit makers, drilling software, and intervention specialists divide the work of constructing an oil or gas well.
04 / sector guide
Natural gas compression companies and where compression sits
Contract compression providers, pipeline operators, and equipment makers: who owns and runs gas compression from the wellhead to the transmission line.
05 / explainer
Energy EPC companies: engineering, procurement and construction
What EPC means in energy, how EPC contractors deliver LNG, refining, and power projects, and how owners divide risk with them.
06 / explainer
Upstream, midstream, and downstream oil and gas explained
How the oil and gas value chain divides into upstream, midstream, and downstream roles, with real company examples and the handoffs between them.
The directory contract
Useful because it is researched.
BTU Graph is an editorial map of the industry, not a scraped list or a customer roster.
Read the methodology →- 01Claims point to evidence.
Company capabilities, markets, and operating scope are supported by linked public sources.
- 02Different businesses stay different.
Operators, field services, infrastructure, AI, data, and software are classified by their actual role.
- 03Inclusion is never an endorsement.
No paid rankings; private account signals never become public claims.
Update list
Hear when BTU Graph publishes new guides and profiles.
We email when there is something new to read: guides, company and software profiles, and the sources behind them. There is no fixed schedule, and never more than one email a week.