Exhibit 99.2

[W.D. VON GONTEN & CO. LETTERHEAD]

January 15, 2008
Mr. Tom Powell
Edge Petroleum Corporation
1301 Travis, Suite 2000
Houston, Texas 77002



Dear
Mr. Powell:

At
your request, we have prepared estimates of the future reserves and projected net revenues for the Mestena Grande Area property interests owned by Edge Petroleum Corporation (Edge),
"As of" January 1, 2008. This report was prepared utilizing spot prices as posted on December 31, 2007, as per SEC guidelines. The subject properties are located in Jim Hogg and Brooks
Counties, Texas.

Our
conclusions, as of January 1, 2008, are as follows:

|                                        |                             | ProvedNet to Edge Petroleum Corporation |            
|--------------------------------------- | --------------------------- | ---------------------------------------- | -----------
|
|
|Reserve Estimates                       |                             |                                          |            
|                                        | Oil/Cond., Mbbl             |                                          | 191.1      
|                                        | Gas, MMcf                   |                                          | 11,081.1   
|                                        | NGL, Mbbl                   |                                          | 778.5      
|                                        | Gas Equivalent, Mcfe        |                                          | 16,898.4   
|Revenues                                |                             |                                          |            
|                                        | Oil, $ (13.4)%              |                                          | 18,149,498 
|                                        | Gas, $ (53.4)%              |                                          | 72,228,391 
|                                        | NGL, $ (33.2)%              |                                          | 44,844,266 
|                                        | Total, $                    |                                          | 135,222,172
|Expenditures                            |                             |                                          |            
|                                        | Ad Valorem Tax, $           |                                          | 3,254,551  
|                                        | Severance Tax, $            |                                          | 5,040,124  
|                                        | Direct Operating Expense, $ |                                          | 23,722,963 
|                                        | Total, $                    |                                          | 32,017,639 
|Investments                             |                             |                                          |            
|                                        | Total, $                    |                                          | 0          
|Estimated Future Net Revenues(FNR)      |                             |                                          |            
|                                        | Undiscounted FNR            |                                          | 103,204,547
|                                        | FNR Disc. @ 10%             |                                          | 75,288,430 
|Allocation Percentage by Classification |                             |                                          |            
|                                        | FNR Disc. @ 10%             |                                          | 99.4       

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Report Qualifications

Purpose of ReportThe purpose of this report is to provide Edge with a
projection of future reserves and revenues, which can be attributed to the Mestena Grande Area oil and gas properties owned by Edge.

Scope of WorkW.D. Von Gonten & Co. was engaged by Edge to estimate and project the
future reserves associated with the various properties included in this report. Once the reserves were estimated, future revenue projections were made based on a SEC constant price deck as requested
by Edge.

Reporting RequirementsSecurities and Exchange Commission (SEC) Regulation S-K, Item 102 and
Regulation S-X, Rule 4-10, and Financial Accounting Standards Board (FASB) Statement No. 69 require oil and gas reserve information to be reported by
publicly held companies as supplemental financial data. These regulations and standards provide for estimates of Proved reserves and revenues discounted at 10% and based on unescalated prices and
costs. Revenues based on escalated product prices may be reported in addition to the current pricing case. Probable reserves are prohibited from use for SEC reporting purposes and should be excluded
from such filings.

The
Society of Petroleum Engineers (SPE) requires Proved reserves to be economically recoverable with prices and costs in effect on the "as of" date of the report. In conjunction with
the World Petroleum Council (WPC), American Association of Petroleum Geologists (AAPG), and the Society of Petroleum Evaluation Engineers (SPEE), the SPE has issuedPetroleum
Resources Management System(2007 ed.), which sets forth the definitions and requirements associated with the classification of
both reserves and resources. In addition, the SPE has issuedStandards Pertaining to the Estimating and Auditing of Oil and Gas Reserve Information,which sets requirements for the qualifications and independence of reserve estimators and auditors.

The
estimated Proved reserves herein have been prepared in conformance with all SEC, SPE, WPC, AAPG and SPEE definitions and requirements.

ProjectionsThe attached reserve and revenue projections are on a calendar year basis with the first
time period being January 1, 2008 through December 31, 2008.

Reserve Estimates

Mesteña Grande AreaThe Mesteña Grande Area is located in Jim Hogg
County, Texas with production primarily from the Queen City Sand. Mesteña Inc. and Edge are the operators of the producing wells in the area of which Edge owns an interest.

Reserve
estimates for the producing properties were based on a combination of 1) Extrapolation of monthly production histories, 2) Material Balance Calculations,
3) Volumetric Calculations, and 4) Analogy to offset production. Queen City wells decline in a hyperbolic nature as would be expected from a fractured tight gas reservoir. This
hyperbolic trend has been observed in wells throughout the Queen City Trend, and a decline analogy has been utilized to aid in projecting remaining reserves. In all wells the future production
performance was extrapolated from the daily production histories where both gas production and tubing pressures were analyzed.

Reserves and schedules of production included in this report are only estimates. The amount of available data, reservoir and geological complexity, reservoir
drive mechanism, and mechanical aspects can have a material effect on the accuracy of these reserve estimates.

Product Prices

The estimated revenues shown herein were based on the effective NYMEX spot prices on December 31, 2007 of $96.00 barrel of oil and $6.795 per MMBtu of gas.

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Oil
and gas pricing differentials were applied on an individual property basis to reflect actual prices received at the wellhead versus the NYMEX spot price. Pricing differentials
account for transportation and processing costs, geographical differentials, quality adjustments, and any marketing bonus or deduction.

Quality
adjustments have been applied based on actual BTU factors for each well. A shrinkage factor has been applied based on production volumes versus actual sales volumes, this
shrinkage accounts for any line loss or fuel usage before the actual sales point.

All
prices have been held constant throughout the life of the properties.

Operating and Capital Costs

The monthly expense necessary to operate each well was estimated based on the average of the last 9 month historical Joint Interest Billing Statements as
supplied by Edge. These statements date from February 2007 through September 2007.

Capital
costs necessary to perform drilling, workover and/or remedial operations were supplied by Edge in the form of detailed AFE's.

All
operating and capital costs have been held constant throughout the life of the properties.

Other Considerations

Abandonment CostsThe cost necessary to abandon the properties were assigned an expense of zero due to
the credit of the salvage value of the surface and subsurface equipment. This was verified with the abandonment of the Libre Nos. 3 & 5 in 2004. Both wells were abandoned and the credit
from the equipment exceeded the costs.

Additional CostsCosts were not deducted for depletion, depreciation and/or amortization (a
non-cash item), or federal income tax.

Data SourcesData furnished by Edge included basic well information, operating cost, ownership,
pricing, and production information on certain leases. The remaining production histories were taken from IHS Energy data archives.

ContextWe specifically advise that any particular reserve estimate for a specific property not be used out of context with
the overall report.The revenues and present worth of future net revenues are not represented to be market value either for individual properties or on a total property
basis.

We
have not inspected the properties included in this report, nor have we conducted independent well tests. W.D. Von Gonten & Co. and our employees have no direct ownership
in any of the properties included in this report. Our fees are based on hourly expense and are not related to the reserve and revenue estimates produced in this report.

Thank
you for the opportunity to work with Edge on this project.

| |  | Respectfully submitted,                                             
| |  | --------------------------------------------------------------------
| |  | WILLIAM D. VON GONTEN, JR.William D. Von Gonten, Jr., P.E.
TX# 73244
| |  | [SEAL]                                                              

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