Oneok

Oneok is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Gas Utility Companies
• Pipe Line Contractors

North American Industry Classification System (NAICS) Categories:

• Natural Gas Distribution > Natural Gas Companies
• Oil And Gas Pipeline And Related Structures Construction

Standard Industry Classification (SIC) Categories:

• Constructing Water, Sewer, Power, & Communication Lines And Pipelines > Pipe Line Contractors
• Gas Production &/Or Distribution