Oil & Gas Companies: Directory by Metro and Basin
A maintained index of U.S. oil and gas companies, organized by metro, basin, and industry segment. Choose a region to see the operators, oilfield-services firms, midstream companies, and equipment makers that work there.
Houston
The energy capital of the world: 357 operators, drillers, oilfield-services firms, subsea specialists, engineers, and equipment makers, by segment.
Permian Basin
The most productive U.S. oil basin: 45 operators and service companies across Midland, Odessa and the Delaware and Midland sub-basins, by segment.
Dallas-Fort Worth
The corporate and midstream capital of Texas energy: 19 operators, pipeline companies, refiners, and engineering and equipment firms headquartered in Dallas-Fort Worth.
Oklahoma
Mid-continent operators and the Tulsa midstream and equipment cluster: 18 companies across Oklahoma City and Tulsa, by segment.
Appalachian Basin
The largest U.S. natural gas region: 15 Marcellus and Utica operators and midstream companies centered on Pittsburgh, by segment.
Texas
Statewide: leading operators, midstream, refining, oilfield services, and equipment companies across Houston, the Permian Basin, Dallas-Fort Worth, and the Eagle Ford.
More regions in progress
ModalPoint is building maintained directories for these markets next. Want one prioritized, or your company listed? Get in touch.
How this directory is organized
The U.S. oil and gas industry is regional. Operators, drillers, and service companies cluster by basin and by the metros that host their headquarters and engineering talent. To find the companies that matter, you start with a place.
Each regional directory below lists companies by what they do (operators, oilfield services, midstream, drilling, equipment, and more) and, where relevant, by basin. The directories are maintained and dated, not scraped once and abandoned.
Get the maintained 2026 U.S. oil and gas dataset
The regional directories as structured files (company, segment, metro, basin, description), plus ModalPoint's read on how vendors win in energy and industrial markets: who buys, how they buy, and where the value chain is shifting. One email, no spam.
Reviewed by Matt Bertram
President, ModalPoint · CEO, EWR Digital (Houston) · Fractional CMO, OGGN
These directories are curated and maintained by ModalPoint, a go-to-market intelligence advisory for energy and industrial companies. Matt has spent 26+ years in B2B and energy marketing, helping companies go to market in the energy sector.
Decisions you can defend.
The operators on this list are deploying AI across the field and the back office. When AI starts driving decisions you can’t explain or defend, the risk isn’t theoretical — it’s regulatory exposure, value leakage, and decisions no one can stand behind. ModalPoint runs independent AI decision audits for oil & gas. We don’t sell the AI — that’s exactly why we can audit it.