GMP Securities L.P. Announces Quarterly GMP Junior Oil and Gas Index Rebalancing

TORONTO, June 13, 2012 /CNW/ - GMP Capital Inc. (TSX: GMP) today announced that GMP Securities L.P. ("GMP Securities") has made changes to the GMP Junior Oil and Gas Index™ (the "Index"), as a result of the quarterly rebalancing. The following changes will be effective at the close of business on Friday, June 15, 2012:

Additions
Issue Name	Symbol
Bonavista Energy Corporation	BNP
Enerplus Corporation	ERF
Pengrowth Energy Corporation	PGF
Deletions
Issue Name	Symbol
Rock Energy Inc.	RE
Corridor Resources Inc.	CDH
Questerre Energy Corporation	QEC

Further information about the Index can be found on GMP Securities' website at www.gmpsecurities.com.

Company additions to and deletions from the GMP Junior Oil and Gas Index™ do not in any way reflect an opinion on the investment merits of the company. Exposure to an asset class is available through investable instruments based on an index. It is not possible to invest directly in an index. GMP does not sponsor, endorse, sell, promote or manage any investment fund or other vehicle offered by third parties that seek to provide an investment return based on the returns of this Index.

ABOUT GMP CAPITAL INC.
GMP Capital Inc. ("GMP") is a leading independent diversified financial services firm headquartered in Toronto, Canada, providing a wide range of financial products and services to a client base that includes corporate clients, institutional investors and high-net-worth individuals in three integrated reporting segments. The Capital Markets segment provides investment banking, including advisory and underwriting services, institutional sales and trading and research through offices located in Toronto, Montreal, Calgary, New York, Miami, Dallas, London, Perth and Sydney. The Capital Markets segment conducts its business through the following operating entities: GMP Securities L.P., GMP Securities, LLC, Griffiths McBurney Corp., GMP Securities Europe LLP and GMP Securities Australia Pty Limited. Wealth Management consists of GMP's non-controlling ownership interest in Richardson GMP Limited, a full-service independent firm focused on providing exclusive and comprehensive wealth management and investment services delivered by an experienced team of investment professionals. The Alternative Investments segment consists of the investment management and alternative investment products provided by GMP Investment Management L.P. GMP is listed on the Toronto Stock Exchange under the symbol "GMP". For further information, please visit our corporate website at gmpcapital.com.

GMP Junior Oil and Gas Index™ is the exclusive property of GMP Securities, which has contracted with Standard & Poor's Financial Services LLC ("S&P") to maintain and calculate the Index. Standard & Poor's® and S&P® are registered trademarks of Standard & Poor's Financial Services LLC "Calculated by S&P Custom Indices" and its related stylized mark(s) are service marks of Standard & Poor's Financial Services LLC and have been licensed for use by GMP Securities. S&P and its affiliates shall have no liability for any errors or omissions in calculating the Index.

GMP Capital Inc.
Rocco Colella, Director, Investor Relations
145 King Street West, Suite 300, Toronto, Ontario M5H 1J8
Tel: [phone]; Fax: [phone]
[email protected] or [email protected]