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Top Companies in Oklahoma

Independently verified American companies based in Oklahoma. Refine by industry, trust badges, and size below.

30 companies listed (6 independently verified) — the largest by market value: Williams Companies, Inc., Oneok Inc /NEW/, Aaon, Inc..

30 companies · updating…

AAON, INC. TULSA, Oklahoma

✓ Verified NASDAQ: AAON

MATRIX SERVICE CO TULSA, Oklahoma

✓ Verified NASDAQ: MTRX

OGE ENERGY CORP. OKLAHOMA CITY, Oklahoma

✓ Verified NYSE: OGE

ONE Gas, Inc. TULSA, Oklahoma

✓ Verified NYSE: OGS

ONEOK INC /NEW/ TULSA, Oklahoma

✓ Verified NYSE: OKE

WILLIAMS COMPANIES, INC. TULSA, Oklahoma

✓ Verified NYSE: WMB

ALLIANCE RESOURCE PARTNERS LP TULSA, Oklahoma

BANCFIRST CORP /OK/ OKLAHOMA CITY, Oklahoma

Bank7 Corp. OKLAHOMA CITY, Oklahoma

BOK FINANCIAL CORP TULSA, Oklahoma

Circle Energy, Inc./NV TULSA, Oklahoma

ClearSign Technologies Corp TULSA, Oklahoma

EDUCATIONAL DEVELOPMENT CORP TULSA, Oklahoma

EMPIRE PETROLEUM CORP TULSA, Oklahoma

FULLNET COMMUNICATIONS INC OKLAHOMA CITY, Oklahoma

GREYSTONE LOGISTICS, INC. TULSA, Oklahoma

Growth Stalk Holdings Corp SEMINOLE, Oklahoma

GULFPORT ENERGY CORP OKLAHOMA CITY, Oklahoma

Helmerich & Payne, Inc. TULSA, Oklahoma

LSB INDUSTRIES, INC. OKLAHOMA CITY, Oklahoma

MACH NATURAL RESOURCES LP OKLAHOMA CITY, Oklahoma

MAMMOTH ENERGY SERVICES, INC. OKLAHOMA CITY, Oklahoma

NGL Energy Partners LP TULSA, Oklahoma

Paycom Software, Inc. OKLAHOMA CITY, Oklahoma