Oklahoma Natural Gas
Services to many areas of the state. Payment methods. operations map, and customer service.
www.ong.com/   Business: Energy and Environment: Utilities: Gas and Electricity  

Compliance Partners, Inc.
An environmental consulting firm headquartered in Littleton, Colorado, USA (with other offices in Oklahoma and Wyoming)
whose services include permitting, dispersion modeling, and developing and implementing compliance programs for the natural gas industry.
www.compliance-partners.com   Science: Environment: Air Quality: Air Dispersion Modeling: Consultants  

Xcel Energy
Utility supplier of electric power and natural gas service in Colorado, Kansas, Michigan, Minnesota, New Mexico, North Dakota, Oklahoma, South Dakota, Texas and Wisconsin.
www.xcelenergy.com/   Regional: North America: United States: Business and Economy: Public Utilities  

National Petroleum Technology Office
DOE organization managing programs to expand US oil and natural gas supplies and availability. Located in Tulsa, Oklahoma.
www.npto.doe.gov/   Regional: North America: United States: Government: Executive Branch: Department of Energy: Energy Programs