Triangle Petroleum to Hold Annual Meeting of Stockholders on July 8

CALGARY, ALBERTA, Jun 29 (MARKET WIRE) --
Triangle Petroleum Corporation (the "Company" or "Triangle") (TSX
VENTURE: TPE) (OTCBB: TPLM) is pleased to announce details of its Annual
Meeting of Stockholders, which will be held in Calgary, Alberta.

The Annual Meeting of Stockholders will be held on Wednesday, July 8,
2009 at 11:00am MST in the boardroom at the Company's head office in
Calgary, Alberta, located at Suite 1250, 521 3rd Avenue SW. Among several
proposals to be considered and acted upon will be the election of
directors, adoption of a stock option plan and an amendment to the
Company's Articles of Incorporation.

Registered stockholders can access the Company's Proxy Statement and Form
10-K at www.cstproxy.com/trianglepetroleum/2009. Online voting can be
completed using control numbers that have been furnished to each
stockholder by mail along with written instructions.

Mark Gustafson, Triangle's Chairman and CEO, stated "We welcome all
existing and potential shareholders to attend our AGM. The Company's
officers and technical team will be available to answer questions after
the meeting."

Important Information

This communication does not constitute an offer to sell or the
solicitation of an offer to buy any securities or a solicitation of proxy
of any stockholder of Triangle Petroleum Corporation ("Triangle").
Triangle filed a definitive proxy statement on Schedule 14A with the
Securities and Exchange Commission (the "SEC") on May 22, 2009 in
connection with its 2009 Annual Meeting of Stockholders (the "2009 Annual
Meeting"). Triangle has furnished a notice to its stockholders, which
provides access to the definitive proxy statement and voting
instructions. INVESTORS AND STOCKHOLDERS OF TRIANGLE ARE URGED TO READ
THE PROXY STATEMENT FOR THE 2009 ANNUAL MEETING IN ITS ENTIRETY BECAUSE
IT CONTAINS IMPORTANT INFORMATION.

Investors and stockholders may obtain the proxy statement and other
documents filed with the SEC free of charge at the website maintained by
the SEC at www.sec.gov or by directing a request to Investor Relations
Department, Triangle Petroleum Corporation, 521-3rd Avenue, SW, Suite
1250, Calgary, Alberta T2P 3T3.

Triangle and its directors and executive officers may be deemed to be
participants in the solicitation of proxies in connection with its 2009
Annual Meeting. Detailed information regarding the names, affiliations
and interests of Triangle's directors and executive officers is available
in the definitive proxy statement for the 2009 Annual Meeting, which was
filed with the SEC on May 22, 2009.

About Triangle Petroleum Corporation

Triangle is an exploration company focused on an emerging Canadian shale
gas project covering 475,000 gross acres (413,000 net acres) in the
Maritimes Basin in Nova Scotia through Elmworth Energy Corporation, its
Calgary-based operating subsidiary. Triangle's common shares trade on the
TSX Venture Exchange under the symbol TPE and on the OTC Bulletin Board
under the symbol TPLM.

Safe Harbor Statement. This news release includes statements about
expected future events and/or results that are forward-looking in nature
and subject to risks and uncertainties. Forward-looking statements in
this release include, but are not limited to the Company's planned joint
venture activities. It is important to note that actual outcomes and the
Company's actual results could differ materially from those in such
forward-looking statements. Factors that could cause actual results to
differ materially include the possibility that additional investments
will not be made or that appropriate opportunities for development will
not be available or will not be properly developed. For additional risk
factors about our Company, readers should refer to risk disclosure
contained in our reports filed with the Securities and Exchange
Commission and on SEDAR.

Neither TSX Venture Exchange nor its
Regulation Services Provider (as that term is defined in the policies of
the TSX Venture Exchange) accepts responsibility for the adequacy or
accuracy of this release.

Contacts:
Triangle Petroleum Corporation
Jason Krueger, CFA
Corporate Communications
(403) 374-1234
Email: info@trianglepetroleum.com
Website: www.trianglepetroleum.com

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