NEWS RELEASE

Provost Well Completions Update ASX Code: MKE OTC QX Code: MAEEY

June 12, 2012 - Calgary; June 13, 2012 - Perth
Mako Hydrocarbons Ltd. ("Mako" or the "Company") is pleased to advise the market on its progress with well completion operations in Provost, Alberta.
The third Provost well in the current three well drilling program, located at 103/11-02-40-
04 W4, finished drilling on Monday, June 4th to a total measured depth of 1,493 meters. All
three wells in this program have now been successfully cased and completed, with completion operations on the last well finishing on Sunday, June 10th.
Due to recent inclement weather in the Provost area, construction of gathering systems to tie-in the new wells and installation of planned battery upgrades to facilitate water- handling and increase oil productive capacity, has been briefly delayed, but is expected to commence next week. Production from these new wells is expected to come on-stream in early July, as scheduled.
Mako Hydrocarbons Ltd. is an Australia Stock Exchange listed and western Canada based oil and gas exploration and production company, which is focused on the light oil and liquids rich natural gas area of the Western Canadian Sedimentary Basin in west central Alberta.

Shares outstanding:

166,586,296

Current share price:

$0.07 (June 1, 2012)

12 month price range:

$0.18 (high) - $0.07(low)

Board of Directors Mr. George Watson Chairman

Mr. Simon Owen

Executive Vice Chairman

Mr. Paul Griese

Managing Director

Mr. Graham Anderson

Non Exec Director

Mr. Garry Mihaichuk

Non Exec Director

Management Mr. Paul Griese President & Managing Director

Mr. Simon Owen

Executive Vice Chairman

For further information, please contact: Paul Griese President & Managing Director +1 (403) 476 7858 Simon Owen Executive Vice Chairman +61 413 777 286

Mr. Cam Bolter

Vice President, Exploration

Mr. Brad Crowe

Vice President, Land

Mr. Stuart Keck

Chief Operating Officer

Mr. Jim Wilson

CFO & Corporate Secretary

Mr. Leonard Math

Asst. Corporate Secretary

Mako Hydrocarbons Ltd. ir@makohydrocarbons.com |

www.makohydrocarbons.com | ABN: 33 009 218 955

Australian Office: Canadian Office:

14 Emerald Terrace, Suite 800, 521 Third Avenue S.W.

West Perth, WA, Australia 6005 Calgary, Alberta, Canada, T2P 3T3

Main: +61 (8) 9226 0443 | Fax: +61 (8) 9322 7211 Main: +1 (403) 476-7850 | Fax: +1 (403) 476-7851

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