Press Release

PRG Kiowa, DONCO, and Longview Generation Sell Subordinated Economic Interest in KPP

January 25, 2006 - PRG Kiowa, LLC, DONCO, LLC and Longview Generation, LLC sold their subordinated economic interest in the cash flows of the Kiamichi Energy Facility, a 1,220-megawatt combined-cycle, natural gas-fired generating plant in Oklahoma, to Trust Company of the West.

A joint venture between PRG, DONCO, and Longview was the initial developer of the project. In February 2001, Tenaska, Inc. became the lead developer responsible for overall development, financing and construction. In October 2001, Tenaska and Diamond Generating Corporation purchased total ownership of Kiowa Power Partners, LLC, the special purpose company for the project, and PRG, DONCO, and Longview retained subordinated economic interest in the project cash flows. Diamond Generating is a wholly owned subsidiary of Mitsubishi Corporation.

The project is located in Pittsburg County, south of Kiowa, Oklahoma, which is approximately 100 miles south of Tulsa and has been in operation since 2003. The facility includes four GE Frame 7FA gas turbines, four heat recovery steam generators and two GE steam turbines.

The Tenaska facility has a long-term electricity production agreement with Coral Energy for the entire electrical production of the generating station. Under this long-term agreement, Coral markets the electricity produced by the facility throughout the regional wholesale power market. An affiliate of Coral also supplies the natural gas to fuel the facility. Tenaska Operations, Inc., a Tenaska affiliate, operates the facility.

Fieldstone Private Capital Group, Inc., led by Manfred Ernst along with Brooks Kaufman and Anastasia Pozdniakova, ran a competitive sales auction and advised the sellers in connection with the transaction.

About PRG / Longview / Donco

Power Resource Group, Inc. is a privately held independent power producer headquartered in Lewisville, Texas. Longview Generation, LLC is a privately held power plant developer headquartered in Skaneateles, NY. Donco, LLC is a privately held business development firm headquartered in Tulsa.

About Tenaska

Tenaska is one of the largest independent power producers in the United States. Forbes magazine ranks Tenaska as 22nd among the 339 largest privately-held U.S. companies, based on 2004 revenues. Tenaska has developed approximately 9,000 MW of electric generating capacity across the United States. Tenaska affiliates currently own, operate and manage eight power plants in six states totaling approximately 7,400 megawatts of generating capacity. Tenaska is headquartered in Omaha, Nebraska, with offices in Dallas, Texas; Denver, Colorado; and Calgary, Alberta Canada. Tenaska affiliates also market natural gas and electric power, with Tenaska’s natural gas marketing affiliate rated 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, gas transportation systems and electric transmission development.

About Diamond Generating

Diamond Generating Corporation was established in October 1999 by Mitsubishi Corporation of Tokyo, Japan, as its investment company in the North American electric generation market. Diamond Generating develops, owns and operates independent power and cogeneration plants. It is also involved in the acquisition and investment in projects that are in various stages of development and operation. In 2001, Diamond Generating has teamed with Tenaska to jointly own interests in power plants in Texas, Georgia, Oklahoma and Alabama.