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Exhibit 99.1

Summa Engineering Inc.101 Park Avenue, Suite 490, Oklahoma City, OK 73102-7211  
      405 232 8338 office       214
  242 2326 facsimile

Wednesday, January 26, 2011

Steve Ensz American Natural Energy Corp. 6100 S. Yale
Avenue, Suite 300 Tulsa, OK 74136-1905

Reserve Report Bayou Couba Field Sections12, 13 and
14-T15S-21E St. Charles Parish, Louisiana

Steve,

In accordance with your request we have estimated the reserves
and future revenue, as of December 31, 2010, to the American Natural Energy
Corporation (ANEC) interest in certain oil and gas properties located in Bayou
Couba Field, St. Charles Parish, Louisiana, as listed in the accompanying
tabulations. This report has been prepared for filing with the U.S. Securities
and Exchange-Commission.

Net
        Reserves
      
      Future
        Net Revenue, $USOil
      Gas
      
      
      NPVCategory
      barrels
      mcf
      
      Total
      at 10%ProvedDeveloped
      75,324
      
      
      3,394,466
      2,685,715Undeveloped
      1,413,338
      
      
      68,632,878
      44,024,021Total Proved
      1,488,662
      
      
      72,027,344
      46,709,736Probable
      791,910
      
      
      34,894,080
      21,592,069Possible
      
      30,818,787
      
      57,889,958
      28,662,758


The future reserves, revenues and values are estimated only.
While the estimates presented are believed to be reasonable, they should be
accepted with the understanding that they are an interpretation of the available
date.

Sincerely,

/s/ R. L. Hilbun

R.L. Hilbun, P.E.

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Specific Parameters:

Purpose -Prepared for the U.S. Securities and Exchange Commission according to Reg. § 210.4 -10. This same report is for the Canadian Security Administrators and meets the requirements for their National Instrument 51-101 for the
constant prices and costs case.

Effective Date -  December 31, 2010

Oil Pricing - The price is the average of the first reported price for each month of the reporting period. The U.S. Energy Information Administration is the source for this pricing data. The average price of $79.79 per barrel less
$2.25 transportation cost or $77.54 per barrel was used. The price was not escalated.

Gas Pricing -  The price is the average of the first reported price for each month of the reporting period. The U.S. Energy Information Administration is the source for this pricing data. The average price of $4.39 less $0.2758
transportation cost or $4.11 per mcf. The price was not escalated.

Taxes-The appropriate state tax for oil and gas production are included. No other taxes are considered.

Operating Expenses -  Producing wells are presently absorbing base operations of the field with an expense of $21.05 per barrel of oil. P2, P3, and P4 were assigned an expense of $11.29 per barrel of oil. An expense of $1.27
per mcf was used. These expenses were then held constant.

Present Value Calculations -  The net present value at 10 percent has been calculated. Composite discounted totals may not be identical to a summary of individual well economics.

Changes in this Report -  The expense burdens and ownership have changed in this report and the ownership for wells may change with future activity. Start dates for future activity may have changed.

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General Parameters, unless otherwise specified:

Judgments- The evaluation is based on engineering and
geological data and interpretations and no particular consideration is given for
any regulatory, legal or accounting situation. There are uncertainties inherent
in the interpretation of engineering and geological data and our conclusions
represent only informed professional judgments.

Estimations- The estimates included in this report
should not be construed as exact quantities. The reserves and resources may or
may not be recovered; if recovered, the resulting revenues and costs could be
more or less than the estimated amounts. The sales rates, prices received for
the reserves, and costs incurred in recovering such reserves may vary from
assumptions included in this report due to the uncertainties of supply and
demand, governmental regulation or other factors. Estimates of reserves may
increase or decrease as a result of future operations.

Ownership- Summa Engineering Inc. was furnished the
ownership information and has not examined the titles to the properties and has
not confirmed the type or amount of interest owned. Summa Engineering Inc. is an
independent petroleum engineering company and does not own an interest in these
properties and is not employed on a contingent basis.

Gas Balancing- The estimates of reserves and future
revenue do not include adjustments for the settlement of any gas volume and
value imbalances resulting from over delivery or under delivery to the reported
interest. The projections are based on the reported interest receiving its net
revenue interest share of estimated future gross gas production.

Risk Factors The decline curves and the accompanying
single property forecast page have no risk factor applied. If a risk factor
table of the probable and possible properties is included, then the risk factor
is based on the information available or the lack thereof. If a risk factor
table(s) of the proved developed producing and/or proved undeveloped properties
are included, then the risk factors applied are estimated based on the
following: - Risk factors vary inversely with risk from 0.90 for little risk
to 0.10 for highest risk. - Length of the production history with risk
increasing with shorter or no history. - Less risk for consistency of
production and conformity with accepted decline type curves. - Greater risk
for erratic production without explanation. - Less risk for offset or area
analog wells, but greater risk if these wells represent drainage for the subject
well. - Greater risk for properties with larger reserves or values.

Field Inspections- For the purposes of this report, a
field inspection of the properties has not been performed nor has the mechanical
operation or condition of the wells and their related facilities been examined.
We have not investigated any possible environmental liability related to the
properties and our estimates do not include any costs that may be incurred due
to such possible liability.

Electronically Transmitted Reports- Any digital document
is intended to be substantively the same as the original signed document
maintained by Summa Engineering Inc. The digital document is subject to the
parameters, limitations, and conditions stated in the original document. In the
event of any differences between the digital document and the original document,
the original document shall supersede the digital document.

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Definitions Of Reserves And Resources Proved Reserves

Proved reserves are the estimated remaining quantities of crude oil, natural gas, and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable in future years from known reservoirs under
existing economic and operating conditions. Proved reserves are limited to those quantities of oil and gas which can be expected, with little doubt, to be economically producible at current prices and costs, under existing regulatory practices and
with existing conventional equipment and operating methods.

Proved developed producing reserves are those reserves which are expected to be produced from existing completion intervals now open for production in existing wells.

Proved developed non-producing reserves are (1) those reserves expected to be produced from existing completion intervals in existing wells, but due to pending pipeline connections or other mechanical or contractual requirements hydrocarbon sales
have not yet commenced, and (2) other non-producing reserves which exist behind the casing of existing wells, or at minor depths below the present bottom of such wells, which are expected to be produced through these wells in the predictable future,
where the cost of making such oil and gas available for production should be relatively small compared to the cost of a new well.

Proved undeveloped reserves are those reserves which are expected to be recovered from new wells on undrilled acreage or from existing wells where a relatively major expenditure is required for recompletion. Proved reserves on undrilled acreage are
limited to those drilling units offsetting productive units that are reasonably certain of production when drilled.

Probable Reserves

Probable reserves are those reserves which geological and engineering data demonstrate to be potentially recoverable, but where some elements of risk or insufficient data prevent classification as proved.

Possible Reserves

Possible reserves are those speculative reserves estimated beyond proved and probable reserves where geologic and engineering data suggest the presence of additional reserves, but where the risk is relatively high.

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