Common Shares in Issue

FRONTERA RESOURCES CORPORATION

Houston, Texas, U.S.A. - 15 June, 2010

COMMON SHARES IN ISSUE

Frontera Resources Corporation (London Stock Exchange, AIM Market: FRR; OTCQX Market, U.S.A.: FRTE), an independent oil and gas exploration and production company ("Frontera" or the "Company"), today notifies as follows:

On 25 September 2009 the Company announced that application had been made for the admission to trading on AIM of 10,258,959 new shares of Common Stock. This figure should have been 10,285,963 new shares of Common Stock and therefore the Company has submitted an application to trading on AIM of an additional 27,004 new shares of Common Stock, being the difference in the number of shares of Common Stock notified and the actual number of share of Common Stock issued.

The Company also confirms that, as at the date of this announcement (and inclusive of the 27,004 shares detailed above), the issued share capital of the Company is 131,793,282 shares of Common Stock (excluding 5,739,855 shares of Common Stock held as treasury stock) trading under ISIN USU3590446098.

Enquiries:

Frontera Resources Corporation

Liz Williamson

Vice President, Investor Relations and Corporate Communications

(713) 585 3216

[email protected]

Nominated Adviser:

Strand Hanson Limited

James Harris / Paul Cocker / Liam Buswell

+44 (0)20 7409 3494

Broker:

Arbuthnot Securities Limited

Andrew Fairclough / Henry Willcocks

+44 (0)20 7012 2000

Notes to editors:

1. Frontera Resources Corporation is an independent Houston, Texas, U.S.A.-based international oil and gas exploration and production company whose strategy is to identify opportunities and operate in emerging markets around the world. Frontera has operated in Georgia since 1997, where it holds a 100% working interest in a production sharing agreement with the government of Georgia. This grants Frontera the exclusive right to explore for, develop and produce oil and gas from a 5,060 square kilometer area in eastern Georgia known as Block 12. Frontera's common stock is traded on the London Stock Exchange, AIM Market - Symbol: FRR, and via the Pink OTC Markets OTCQX Market Tier - Symbol: FRTE. For more information, please visit www.fronteraresources.com.

2. This release and the information referred to herein may contain certain forward-looking statements, including, without limitation, expectations, beliefs, plans and objectives regarding the potential restructuring and other transactions and matters discussed in this release. Among the important factors that could cause actual results to differ materially from those indicated by such forward-looking statements are: fluctuations in oil and gas prices; general economic conditions; conditions in the global financial markets; the political situation in Georgia and relations with neighboring countries; and other factors listed in Frontera's financial reports, which are available at www.fronteraresources.com/Investors.php?link_id=23, and in the offer to purchase and related materials, which are available from the Company as outlined above. There is no assurance that Frontera's expectations will be realized, and actual results may differ materially from those expressed in the forward-looking statements.