PSEC – A Prospect Capital Fund

Prospect Energy Corporation Increases Quarterly Dividend to $0.385 per Share, Representing 38% Year Over Year Growth

December 15, 2006

NEW YORK, NY — (MARKET WIRE) — 12/15/06 — Prospect Energy Corporation (NASDAQ: PSEC)(“Prospect”) announced today that it has declared a second fiscal quarter(for the fiscal year ending June 30, 2007) dividend of $0.385 per share,payable on January 5, 2007, to shareholders of record as of December 29,2006. The ex-dividend date is December 27, 2006. This dividend marks theninth consecutive quarterly increase and an increase of $0.105 or 38% fromthe year-over-year prior quarter’s dividend of $0.28 per share.

Dividend History

Dividend Per Share     Quarter Ended$0.385December 31, 2006$0.38September 30, 2006$0.34June 30, 2006$0.30March 31, 2006$0.28December 31, 2005$0.20September 30, 2005$0.15June 30, 2005$0.125March 31, 2005$0.10December 31, 2004

ABOUT PROSPECT ENERGY CORPORATION

Prospect Energy Corporation (www.prospectenergy.com) is a closed-endinvestment company that lends to and invests in energy-related businesses.Prospect Energy’s investment objective is to generate both current incomeand capital appreciation through debt and equity investments.

Prospect Energy has elected to be treated as a business development companyunder the Investment Company Act of 1940 (“1940 Act”). We are required tocomply with a series of regulatory requirements under the 1940 Act as wellas applicable NASDAQ, federal and state laws and regulations. We haveelected to be treated as a regulated investment company under the InternalRevenue Code of 1986. Failure to comply with any of the laws andregulations that apply to Prospect Energy could have a material adverseeffect on Prospect Energy and its shareholders.

This press release contains forward-looking statements within the meaningof the Private Securities Litigation Reform Act of 1995. Any suchstatements, other than statements of historical fact, are likely to beaffected by other unknowable future events and conditions, includingelements of the future that are or are not under the Company’s control, andthat the Company may or may not have considered; accordingly, suchstatements cannot be guarantees or assurances of any aspect of futureperformance. Actual developments and results are highly likely to varymaterially from these estimates and projections of the future. Suchstatements speak only as of the time when made, and the Company undertakesno obligation to update any such statement now or in the future.

Please send investment proposals to:Grier EliasekPresident and Chief Operating Officergrier@prospectstreet.com(212) 448-0702