Coastal Energy Announces Operations & Guidance Update and Successful Exploration Results

Coastal Energy Announces Operations & Guidance Update and Successful
Exploration Results

HOUSTON, June 17, 2013 (GLOBE NEWSWIRE) -- Coastal Energy Company (the
"Company" or "Coastal Energy") (TSX:CEN) (AIM:CEO), an independent exploration
and production company with assets in Southeast Asia, today announces the
results of the Bua Ban North B-17 and Ko Kra A-01 exploration wells and an
update to its 2013 guidance.

Bua Ban North

The Bua Ban North B-17 well was drilled to a depth of 3,800 feet TVDSS. The
well encountered 34 feet of net pay in the M100 Miocene reservoir with average
porosity of 23%. The B-17 well was drilled into fault block north of the
existing Bua Ban North reserve base.This fault block was previously carried
in the Company's internal prospective resource inventory.The well also
encountered reservoir quality sands with significant oil shows in some of the
deeper Miocene intervals which were penetrated off structure due to the high
angle of the wellbore.

Block G5/50 (Ko Kra)

The Ko Kra A-01 well was drilled to a total depth of 8,330 feet TVDSS in Block
G5/50, north of the Company's existing asset base in Block G5/43.The well
encountered a section of Tertiary rock similar to what is present and
productive in the Songkhla basin.Significant gas shows encountered during
drilling are indicative of an active hydrocarbon system in the basin.Core
samples were taken for further analysis.No commercial hydrocarbon sands were
encountered and the well was plugged and abandoned.

Guidance Update

The Company expects 2013 full year average production to average between
24,000 boe/d and 26,500 boe/d, with an exit rate ranging from 26,500 boe/d to
33,000 boe/d.The Company's lower full year average guidance reflects the
operational delays associated with the damage which occurred to the two MOPUs
during transit as well as the operational and mechanical delays at Bua Ban
North & Bua Ban South in the first quarter.Total company production year to
date through May 31^st has averaged approximately 23,700 boe/d.

Randy Bartley, President & CEO of Coastal Energy, commented:

"The new discovery at Bua Ban North is encouraging.This is the first test of
one of the multiple fault blocks surrounding the Bua Ban North field which
contain 67.5 mmbbl of unrisked recoverable prospective resources.Following
the successful results of this well, we expect further additions to our
existing reserve base at Bua Ban North.The oil shows in the deeper Miocene
sands are also encouraging and will give us additional prospectivity in these
horizons updip on the structure.

"Although no commercial hydrocarbons were encountered in the Ko Kra A-01 well,
we are encouraged by the results.This was the first well drilled in the basin
using modern 3D seismic and we saw many characteristics of an active
hydrocarbon system.Further analysis of the data from this well, will give us
a better understanding of the petroleum system and help us generate additional
prospects in the Ko Kra basin.

"One of the drilling rigs will drill an additional well at Bua Ban North
before mobilizing to Malaysia, while the other has been mobilized to the Bua
Ban Main platform to drill four to five wells into the tighter Lower Oligocene
and Eocene sands which will be hydraulically fracked in the third quarter.

"Coastal has experienced several operational delays in the first half of 2013
which have put us behind schedule in our development plans both in Thailand
and Malaysia.Now that we have fully assessed these particular issues and the
impact on our future development plans, we are in a better position to revise
our outlook for the remainder of the year.Although timing has slipped for the
project in Malaysia and the development of Songkhla H, we are well positioned
going forward to execute our original plan.We now expect first oil from the
Kapal field in Malaysia in late Q3 2013 and are targeting first oil at
Songkhla H late in the fourth quarter of this year."

Additional information, including the Company's complete competent person's
report may be found on the Company's website at or may
be found in documents filed on SEDAR at

This statement contains 'forward-looking statements' as defined by the
applicable securities legislation. Statements relating to current and future
drilling results, existence and recoverability of potential hydrocarbon
reserves, production amounts or revenues, forward capital expenditures,
operation costs, oil and gas price forecasts and similar matters are based on
current data and information and should be viewed as forward-looking
statements. Such statements are not guarantees of future results and are
subject to risks and uncertainties beyond Coastal Energy's control. Actual
results may differ substantially from the forward-looking statements.

CONTACT: Coastal Energy Company
         +1 (713) 877-6793
         Strand Hanson Limited (Nominated Adviser)
         +44 (0) 20 7409 3494
         Rory Murphy / Andrew Emmott
         Macquarie Capital (Europe) Limited (Broker)
         +44 (0) 20 3037 2000
         Steve Baldwin/Andrew Jones
         FirstEnergy Capital LLP (Broker)
         Hugh Sanderson / Travis Inlow
         +44 (0) 20 7448 0200
         Tim Thompson / Ben Romney
         +44 (0) 20 7466 5000

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