New West Virginia Natural Gas Gathering System Announced by Tenaska Midstream and Superior - 03/16/10

OMAHA, Neb. Tenaska Midstream Services, LLC, an affiliate of Tenaska, is participating in development of a new 16-mile natural gas gathering line to serve an area of West Virginia that has lacked adequate gas transportation infrastructure, the company has announced.

Tenaska Midstream is partnering with Superior Appalachian Pipeline, LLC (Superior), to build the gathering system to carry gas from wells in Preston County, WV., to the Columbia Transmission System, which serves markets in Virginia, the District of Columbia and Maryland.  The system can be expanded to connect with the Texas Eastern Transmission Corporation interstate pipeline.

The line is expected to be completed during the fourth of 2010.

Tenaska affiliates Tenaska Resources, LLC and Tenaska Drilling Services, LLC, are active in the Marcellus Shale formation underlying West Virginia and Pennsylvania and have drilled seven wells to date in Preston County.

"The Marcellus Shale is proving to be a highly productive source of new gas supplies, but opportunities are constrained by the absence of modern transportation infrastructure," said Tom Boyd, Tenaska vice president and general manager of Exploration, Production and Midstream.  "This gathering line will be the first in Preston County to provide a 21st Century path to market for this important developing energy resource."

As operator, Superior, headquartered in Tulso, Okla., will be responsible for the day-to-day operations of the gathering system.  Charles Davies, Superior's vice president of Business Development, said, "The line already has commitments to gather gas from producers who hold some of the larger acreage positions in the county.  We are actively seeking additional gas supplies from other third parties."

Businesses and customers may direct questions to : Charles Davies at 918-477-5601 or cdavies@superiorpipeline.com.

About Tenaska Midstream Services, LLC                                                                                      Tenaska Resources, LLC; Tenaska Drilling Services, LLC; and Tenaska Midstream Services, LLC, are the natural gas exploration and production affiliates of Omaha, Nebraska-based energy company Tenaska, one of the leading independent power producers in the U.S. Forbes and Fortune magazines rank Tenaska 16th and 25th, respectively, among the largest privately-held U.S. companies.  The companies manage drilling, production and midstream activities targeting natural gas reserves in the Marcellus Shale geologic formation which is beneath most of Pennsylvania and West Virginia.

Tenaska has developed approximately 9,000 megawatts (MW) of power generation and manages and operates eight power plants totaling 6,700 MW that is owns in partnership with other companies.  Tenaska affiliates also market natural gas, electric power and biofuels, with Tenaska's natural gas marketing affiliate regarded as one of the top ten natural gas marketers in North America.  Tenaska affiliates are also involved in private equity fund and acquisition management; fuel supply; natural gas transportation systems; and electric transmission development.  To learn more about Tenaska, visit the company's Web site at www.tenaska.com.

About Superior Appalachian Pipeline, LLC                                                                                 Superior Appalachian Pipeline, LLC, is a subsidiary company of Unit Corporation, a Tulsa, Okla.-based publicly held company engaged through its subsidiaries in oil and gas exploration, production, contract drilling and natural gas gathering and processing.  Superior is developing midstream projects in the Appalachian Basin area of the Marcellus Shale formation using its expertise in natural gas gathering and processing

Media Contact:

Jana Martin

Office: (402) 691-9595

Mobile: (402) 203-0748

or jmartin@tenaska.com