of Publicly Traded Companies Headquartered in Oklahoma

The companies on this list are headquartered in Oklahoma. Examples of some of the larger companies on this list based on market capitalization include:

Continental Resources, Inc. (CLR)

Devon Energy Corporation (DVN)

Magellan Midstream Partners L.P. (MMP)

Williams Companies, Inc. (The) (WMB)

Williams Partners L.P. (WPZ)

Select the company’s link to access charts, news links and company website and social media information.

Air, Heat, Refrigeration and Plumbing

AAON, Inc. (AAON) (Heating, Ventilation and Air Conditioning Equipment)

Banks

BancFirst Corporation (BANF)

BOK Financial Corporation (BOKF)

Book Publishers

Educational Development Corporation (EDUC) (Children’s books)

Broadcasting Equipment

ADDvantage Technologies Group, Inc. (AEY) (New and refurbished CATV Equipment)

Chemicals

LSB Industries Inc. (LXU) (Diversified: HVAC products, chemical products)

Coal Mining Companies

Alliance Holdings GP, L.P. (AHGP) (Focus on thermal coal)

Alliance Resource Partners, L.P. (ARLP) (Focus on thermal coal)

Construction and Engineering Services

Matrix Service Company (MTRX) (Construction services for oil & gas and utilities)

Oil and Gas Exploration and Production

Chesapeake Energy Corporation (CHK) (Multiple Regions)

Continental Resources, Inc. (CLR) (Montana, North Dakota and Oklahoma)

Devon Energy Corporation (DVN) (Activities Extend from Western Canada to the Gulf Coast Region)

Gulfport Energy Corporation (GPOR) (Louisiana Gulf Coast and Ohio)

Laredo Petroleum, Inc. (LPI) (Texas)

Midstates Petroleum Company, Inc. (MPO) (Mississippian Lime, Anadarko Basin)

Mid-Con Energy Partners, L.P. (MCEP) (South Central Region)

Panhandle Oil and Gas Inc. (PHX) (Non-Operator: Oklahoma)

SandRidge Energy, Inc. (SD) (Mid-Continent, Niobrara Shale)

Unit Corporation (UNT) (Diversified Energy Company)

WPX Energy, Inc. (WPX) (Colorado, New Mexico and North Dakota)

Oil & Gas: Equipment and Services

Cypress Energy Partners, L.P. (CELP) (Saltwater disposal; water and environmental services)

Helmerich & Payne, Inc. (HP) (Contract drilling company)

Mammoth Energy Services, Inc. (TUSK) (Oilfield services provided to develop onshore unconventional oil and natural gas exploration and production companies)

Oil & Gas Midstream

Blueknight Energy Partners L.P., L.L.C. (BKEP) (MLP: Crude Oil, Liquid Asphalt Cement and Residential Fuel Oil)

Enable Midstream Partners, L.P. (ENBL) (Pipelines, processing plants, storage facilities)

Magellan Midstream Partners L.P. (MMP) (Pipelines, terminals, fractionation facilities, storage facilities)

NGL Energy Partners L.P. (NGL) (Diversified midstream assets; marketing, retail propane, water treatment)

ONEOK, Inc. (OKE) (Natural gas gathering, processing, storage and transportation)

Semgroup Corporation (SEMG) (Midstream energy assets)

Williams Companies, Inc. (The) (WMB) (Ownership interest in Williams Partners)

Williams Partners L.P. (WPZ) (Natural gas midstream assets and NGL services)

Paper and Paper Products

Orchids Paper Products Company (TIS) (Tissue paper)

Restaurants

Sonic Corp. (SONC) (Drive-in restaurants)

Software

Paycom Software, Inc. (PAYC) (Software-as-a-service: cloud-based human resources and payroll services)

Utilities: Electric

OGE Energy Corporation (OGE) (Service provided in Arkansas and Oklahoma)

Utilities: Gas