Company Name

Industry

Location

Revenue

Employees

NOMAC

Utilities

United States, Oklahoma

$1B and Over

1001-5000

OGE Energy

Utilities

United States, Oklahoma

$500M to $1B

1001-5000

ONE Gas

Utilities

United States, Oklahoma

$250M to $500M

1001-5000

Oklahoma Natural Gas

Utilities

United States, Oklahoma

$250M to $500M

1001-5000

Oklahoma Gas and Electric Company

Utilities

United States, Oklahoma

$250M to $500M

1001-5000

OGE

Utilities

United States, Oklahoma

$50M to $100M

1001-5000

Public Service Company of Oklahoma

Utilities

United States, Oklahoma

$10M to $25M

1001-5000