THIS NEWS RELEASE IS NOT FOR DISSEMINATION IN THE UNITED STATES OR THROUGH
UNITED STATES NEWSWIRE SERVICES


Coastal Energy Company (the "Company" or "Coastal") (TSX VENTURE:CEN)(AIM:CEO),
an independent exploration and production company with assets in South-East
Asia, announces a significant upgrade to the Company's reserve and resource base
in Thailand.


The Company's 2007 Competent Persons Report (the "Report") reserves evaluation
conducted by Huddleston and Co., Inc., has been completed in accordance with the
TSX-V NI 51-101 regulations and the AIM Guidance Notes for Mining, Oil & Gas
companies.


Highlights of the Report as at December 31, 2007 include:

- A 28% increase in total proven (1P) reserves to 19.0 mmboe

- A 50% increase in offshore proven + probable (2P) reserves to 26.7 mmboe

- A 76% increase in total contingent resources (best estimate) to 34.2 mmboe

- A 137% increase in total prospective resources (best estimate) to 170.4 mmboe

The upgrade of reserves is driven primarily by additional reservoir engineering
and sub-surface technical work which utilized data extracted from a 375 square
kilometer high resolution 3-D seismic survey acquired in early 2007 over the
western portion of the offshore G5/43 Block in the Gulf of Thailand. Evaluation
and integration of the 3D data has enabled the Company to complete detailed
reservoir modeling studies over the Bua Ban field and in addition, confirm
additional reserves and resources along the western portion of the Songkhla
basin.


Randy Bartley, Chief Executive Officer of Coastal commented: "Our technical team
is making significant progress in evaluating our current development projects at
the Songkhla and Bua Ban oil fields. They have been successful at identifying 8
additional prospective developments that can be drilled from our Songkhla
facility development or from a satellite wellhead facility and processed at the
main Songkhla facility. The Songkhla facility is expected to be set late Q3
2008. These 8 prospects will expose the Company to an additional 200 MM barrels
of potential oil in place, that with success, can be developed and brought on
production in late Q4 2008 and Q1 2009."


The following tables provide a consolidated look at Coastal's reserves and
resources as of December 31, 2007:




Reserves in mmboe
(million barrels of oil equivalent)    Onshore     Offshore      Total
----------------------------------------------------------------------
----------------------------------------------------------------------
Proven (1P)                               10.7          8.3       19.0

Proven + Probable (2P)                    18.8         26.7       45.5

Proven + Probable + Possible (3P)         18.8         34.8       53.6
----------------------------------------------------------------------
Note - Reserves are stated at gross working interest before royalties
as defined in the Report

Resources in mmboe 
(million barrels of oil equivalent)    Onshore     Offshore      Total
----------------------------------------------------------------------
----------------------------------------------------------------------
Contingent Resources
 Low Estimate                              6.0          3.5        9.5
 Best Estimate                            26.1          8.1       34.2
 High Estimate                           180.9         18.5      199.4

Prospective Resources
 Low Estimate                             44.9         28.4       73.3
 Best Estimate                            72.7         97.7      170.4
 High Estimate                           116.7        307.0      423.7
----------------------------------------------------------------------
Note - Resources are stated at gross working interest before royalties
as defined in the Report and are in addition to the 3P Reserves 
reported in the above table.



The Company's 2007 annual consolidated financial statements are expected to be
released on April 29, 2008.


Randy Bartley, President and Chief Executive Officer of the Company and a member
of the Society of Petroleum Engineering, and Frank Inouye, Chairman of the
Company and a member of the American Association of Petroleum Geologists, have
reviewed the contents of this announcement.


Notes to Editors

- Coastal Energy is an oil and gas exploration, development and production
company, with core assets onshore and offshore Thailand.


- The Company specializes in identifying and developing under-exploited or
"orphaned" assets. Management has proven experience at identifying and unlocking
value from overlooked, abandoned, low risk assets with proven hydrocarbon
potential


- This strategy has enabled the Company to assemble an asset base in Thailand
that includes production of approximately 11.5 mmcf/d of gas under a long-term
contract and offshore oil fields currently under development


- Production growth over the next 12 -18 months is expected to grow
exponentially and proven, probable and possible reserves are 53.6 million
barrels oil equivalents


- The Company's current assets include:

- Offshore Thailand

-- 100% of block G5/43 - two oil fields currently under development with several
other appraisal and exploration opportunities. Production is expected to
commence Q4 2008


-- 100% of block G5/50 - within the boundaries of block G5/43 in the Ko Kra basin

- Onshore Thailand

-- 12.6% net interest in blocks EU1 and E5N which include the Phu Horm gas field
currently producing between 90 and 100 mmcf/d


-- 36.1% net interest in block L15/43 surrounding the Phu Horm field

-- 36.1% net interest in block L27/43 - containing the undeveloped Dong Mun gas
field


-- 21.7% net interest in block L13/48 located adjacent to blocks L15/43 and
L27/43, contains Si That discovery


For additional information, including the Company's complete competent person's
may be found on the Company's website, www.coastalenergy.com or may be found in
documents filed on SEDAR, www.sedar.com.


Huddleston & Co., Inc., based in Houston, Texas, was founded in 1967 by B. P.
Huddleston. The firm has developed into a premier provider of petroleum and
geological engineering, consulting, and financial services. Huddleston & Co.,
Inc., has forged a solid reputation for consistently delivering a high quality
work product as well as for utilizing the latest technological advancements to
complete projects in a timely and cost effective manner. Additional information
may be found at http://www.huddlestonco.com.


Reserve definitions are in accordance with the Society of Petroleum Engineers
and the World Petroleum Congress "Oil and Gas Reserve Definitions."


Per barrel of oil equivalent ("boe") amounts have been calculated using a
conversion rate of six thousand cubic feet of natural gas to one barrel of oil
equivalent (6:1). The term boe may be misleading, particularly if used in
isolation. A boe conversion ratio of 6mcf: 1bbl of oil is based upon an energy
equivalency conversion method primarily applicable at the burner tip and does
not represent a value equivalency at the wellhead.


These securities have not been registered under United States Securities Act of
1933 (the "US Securities Act") or the securities laws of any state and may not
be offered or sold in the United States or to US persons (as defined in
Regulation S under the US Securities Act) unless an exemption from registration
is available.
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