UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 10-Q/A

AMENDMENT NO. 1







|x | Quarterly Report under Section 13 or 15(d) of the Securities Exchange Act of 1934
|- | ---------------------------------------------------------------------------------

For the Quarterly Period Ended June 30, 2009

Or



| ̈ | Transition Report Under Section 13 or 15(d) of the Securities Exchange Act of 1934
|- | ----------------------------------------------------------------------------------

For the Transition Period From  to

Commission File Number 0-7406





PrimeEnergy Corporation

(Exact name
of registrant as specified in its charter)







|                                                               |  |                                     
|-------------------------------------------------------------- |  | ------------------------------------
|Delaware                                                       |  | 84-0637348                          
|(State or other jurisdiction of incorporation or organization) |  | (IRS employer identification number)

One Landmark Square, Stamford, Connecticut 06901

(Address of principal executive offices)

(203) 358-5700

(Registrants telephone number, including area code)



(Former name, former address and former fiscal year, if changed since last
report)





Indicated by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filings required for the past 90 days.    Yes  x    No   ̈

Indicate by check mark whether the registrant has
submitted electronically and posted on its corporate web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such
shorter period that the registrant was required to submit and post such files).    Yes   ̈    No   ̈

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer, or a smaller reporting company. See the
definitions of large accelerated filer and smaller reporting company in Rule 12-B of the Exchange Act.



|                        |  |                                                |  |                           |  |  
|----------------------- |  | ---------------------------------------------- |  | ------------------------- |  | -
|Large Accelerated Filer |  |  ̈                                              |  | Accelerated Filer         |  |  ̈
|                        |  |                                                | 
|Non-Accelerated Filer   |  |  ̈  (Do not check if smaller reporting company) |  | Smaller Reporting Company |  | x

Indicated by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act).    Yes   ̈    No  x

The number of shares outstanding of each class of the Registrants Common Stock as of August 11, 2009 was: Common Stock, $0.10 par value, 3,040,872 shares.









---

EXPLANATORY NOTE

We are filing this Amendment No. 1 to our Quarterly Report on Form 10-Q, or Form 10-Q/A, to amend Item 1 in our Quarterly Report on Form 10-Q for the quarter ended June 30, 2009, or the Quarterly
report, which was originally filed with the Securities and Exchange Commission, or the SEC, on August 14, 2009. The diluted income (loss) per common share was incorrect on the face of the income statement as well as in Note 12 of The Notes to
Consolidated Financial Statements. The error does not affect any other amounts reported on the corresponding financial statements for the periods reported. In addition, we are filing or furnishing, as indicated in this Form 10-Q/A, as exhibits, the
required currently dated certifications.

The Form 10-Q/A is limited in scope to such items and does not amend, update, or change any other items or
disclosures contained in the Quarterly Report. Accordingly, other items that remain unaffected are omitted in this filing. Except as described in this paragraph, we do not purport by this Form 10-Q/A to update any of the information contained in the
Quarterly Report.

References in this Form 10-Q/A to we, us, the Company and PEC refer to PrimeEnergy Corporation and
its wholly- owned subsidiaries, unless otherwise indicated or as otherwise required by the context.



2



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PART IFINANCIAL INFORMATION



|Item 1. | FINANCIAL STATEMENTS
|------- | --------------------

PrimeEnergy Corporation

Consolidated Balance Sheet

June 30,
2009 and December 31, 2008





|                                                        |  |              |             |                  |   |            
|------------------------------------------------------- |  | ------------ | ----------- | ---------------- | - | -----------
|                                                        |  | June 30,2009 |             | December 31,2008
|                                                        |  | (Unaudited)  |             | (Audited)       
|ASSETS                                                  |  |              |             |                  |   |            
|Current assets:                                         |  |              |             |                  |   |            
|Cash and cash equivalents                               |  | $            | 10,199,000  |                  | $ | 11,808,000 
|Restricted cash and cash equivalents                    |  |              | 5,482,000   |                  |   | 8,027,000  
|Accounts receivable (net)                               |  |              | 11,432,000  |                  |   | 18,257,000 
|Due from related parties                                |  |              | 893,000     |                  |   | 678,000    
|Prepaid expenses                                        |  |              | 2,067,000   |                  |   | 1,302,000  
|Derivative contracts                                    |  |              |            |                  |   | 1,755,000  
|Inventory at cost                                       |  |              | 4,515,000   |                  |   | 4,532,000  
|Deferred income tax                                     |  |              | 772,000     |                  |   | 30,000     
|                                                        |  |              |             |                  |   |            
|Total current assets                                    |  |              | 35,360,000  |                  |   | 46,389,000 
|                                                        |  |              |             |                  |   |            
|                                                        |  |             
|Property and equipment, at cost                         |  |              |             |                  |   |            
|Oil and gas properties (successful efforts method), net |  |              | 196,231,000 |                  |   | 212,149,000
|Field service equipment and other, net                  |  |              | 7,740,000   |                  |   | 8,316,000  
|                                                        |  |              |             |                  |   |            
|                                                        |  |             
|Net property and equipment                              |  |              | 203,971,000 |                  |   | 220,465,000
|                                                        |  |             
|Other assets                                            |  |              | 492,000     |                  |   | 976,000    
|                                                        |  |              |             |                  |   |            
|                                                        |  |             
|Total assets                                            |  | $            | 239,823,000 |                  | $ | 267,830,000
|                                                        |  |              |             |                  |   |            

See accompanying notes to the consolidated financial statements.



3



---

PrimeEnergy Corporation

Consolidated Balance Sheet

June 30, 2009 and December 31, 2008



|                                                                                              |  |              |             |   |                  |   |             |  
|--------------------------------------------------------------------------------------------- |  | ------------ | ----------- | - | ---------------- | - | ----------- | -
|                                                                                              |  | June 30,2009 |             |   | December 31,2008 |  
|                                                                                              |  | (Unaudited)  |             |   | (Audited)        |  
|LIABILITIES and STOCKHOLDERS EQUITY                                                          |  |              |             |   |                  |   |             |  
|Current liabilities:                                                                          |  |              |             |   |                  |   |             |  
|Current bank debt                                                                             |  | $            | 8,870,000   |   |                  | $ | 16,970,000  |  
|Accounts payable                                                                              |  |              | 22,959,000  |   |                  |   | 26,715,000  |  
|Current portion of asset retirement and other long-term obligation                            |  |              | 3,512,000   |   |                  |   | 1,461,000   |  
|Derivative liability short term                                                               |  |              | 690,000     |   |                  |   | 387,000     |  
|Accrued liabilities                                                                           |  |              | 4,803,000   |   |                  |   | 10,477,000  |  
|Due to related parties                                                                        |  |              | 426,000     |   |                  |   | 233,000     |  
|                                                                                              |  |              |             |   |                  |   |             |  
|Total current liabilities                                                                     |  |              | 41,260,000  |   |                  |   | 56,243,000  |  
|Long-term bank debt                                                                           |  |              | 88,000,000  |   |                  |   | 87,170,000  |  
|Indebtedness to related parties                                                               |  |              | 20,000,000  |   |                  |   | 20,000,000  |  
|Asset retirement obligation                                                                   |  |              | 17,818,000  |   |                  |   | 18,650,000  |  
|Derivative liability long term                                                                |  |              |            |   |                  |   | 146,000     |  
|Deferred income taxes                                                                         |  |              | 22,777,000  |   |                  |   | 25,688,000  |  
|                                                                                              |  |              |             |   |                  |   |             |  
|Total liabilities                                                                             |  |              | 189,855,000 |   |                  |   | 207,897,000 |  
|                                                                                              |  |              |             |   |                  |   |             |  
|Stockholders equity: (Note 13)                                                               |  |              |             |   |                  |   |             |  
|Preferred stock, $.10 par value, authorized 5,000,000 shares, none issued                     |  |              |            |   |                  |   |            |  
|Common stock, $.10 par value, authorized 10,000,000 shares; issued 7,694,970 in 2009 and 2008 |  |              | 769,000     |   |                  |   | 769,000     |  
|Paid in capital                                                                               |  |              | 10,972,000  |   |                  |   | 11,024,000  |  
|Retained earnings                                                                             |  |              | 65,774,000  |   |                  |   | 73,426,000  |  
|Accumulated other comprehensive income, net                                                   |  |              | (441,000    | ) |                  |   | 1,009,000   |  
|                                                                                              |  |              |             |   |                  |   |             |  
|                                                                                              |  |              | 77,074,000  |   |                  |   | 86,228,000  |  
|                                                                                              |  |             
|Treasury stock, at cost, 4,654,098 common shares at 2009 and 4,647,316 common shares at 2008  |  |              | (37,208,000 | ) |                  |   | (36,940,000 | )
|                                                                                              |  |              |             |   |                  |   |             |  
|Total stockholders equity                                                                    |  |              | 39,866,000  |   |                  |   | 49,288,000  |  
|Non-controlling interest                                                                      |  |              | 10,102,000  |   |                  |   | 10,645,000  |  
|                                                                                              |  |              |             |   |                  |   |             |  
|Total equity                                                                                  |  |              | 49,968,000  |   |                  |   | 59,933,000  |  
|                                                                                              |  |              |             |   |                  |   |             |  
|Total liabilities and equity                                                                  |  | $            | 239,823,000 |   |                  | $ | 267,830,000 |  
|                                                                                              |  |              |             |   |                  |   |             |  

See accompanying notes to the consolidated financial statements.



4



---

PrimeEnergy Corporation

Consolidated Statement of Operations

Six Months Ended June 30, 2009 and 2008

(Unaudited)



|                                                          |  |      |             |   |      |   |           
|--------------------------------------------------------- |  | ---- | ----------- | - | ---- | - | ----------
|                                                          |  | 2009 |             |   | 2008
|Revenue:                                                  |  |      |             |   |      |   |           
|Oil and gas sales                                         |  | $    | 32,549,000  |   |      | $ | 74,648,000
|Field service income                                      |  |      | 9,182,000   |   |      |   | 12,749,000
|Administrative overhead fees                              |  |      | 4,317,000   |   |      |   | 4,499,000 
|Other income                                              |  |      | 15,000      |   |      |   | 197,000   
|                                                          |  |      |             |   |      |   |           
|Total revenue                                             |  |      | 46,063,000  |   |      |   | 92,093,000
|                                                          |  |      |             |   |      |   |           
|                                                          |  |     
|Costs and expenses:                                       |  |      |             |   |      |   |           
|Lease operating expense                                   |  |      | 16,678,000  |   |      |   | 21,160,000
|Field service expense                                     |  |      | 8,204,000   |   |      |   | 9,583,000 
|Depreciation, depletion and amortization                  |  |      | 22,132,000  |   |      |   | 35,629,000
|Loss on settlement of asset retirement obligation         |  |      | 1,611,000   |   |      |   |          
|General and administrative expense                        |  |      | 5,620,000   |   |      |   | 7,290,000 
|Exploration costs                                         |  |      |            |   |      |   | 299,000   
|                                                          |  |      |             |   |      |   |           
|Total costs and expenses                                  |  |      | 54,245,000  |   |      |   | 73,961,000
|                                                          |  |      |             |   |      |   |           
|Gain (loss) on sale and exchange of assets                |  |      | 200,000     |   |      |   | 78,000    
|                                                          |  |      |             |   |      |   |           
|Income (loss) from operations                             |  |      | (7,982,000  | ) |      |   | 18,210,000
|                                                          |  |     
|Other income and expenses:                                |  |      |             |   |      |   |           
|Less: interest expense                                    |  |      | 3,135,000   |   |      |   | 4,376,000 
|Add interest income                                       |  |      | 38,000      |   |      |   | 261,000   
|                                                          |  |      |             |   |      |   |           
|                                                          |  |     
|Income (loss) before provision (benefit) for income taxes |  |      | (11,079,000 | ) |      |   | 14,095,000
|Provision (benefit) for income taxes                      |  |      | (3,610,000  | ) |      |   | 3,451,000 
|                                                          |  |      |             |   |      |   |           
|Net income (loss)                                         |  |      | (7,469,000  | ) |      |   | 10,644,000
|                                                          |  |      |             |   |      |   |           
|                                                          |  |     
|Less: Net income attributable to non-controlling interest |  |      | 183,000     |   |      |   | 3,894,000 
|                                                          |  |      |             |   |      |   |           
|Net income (loss) attributable to PrimeEnergy             |  | $    | (7,652,000  | ) |      | $ | 6,750,000 
|                                                          |  |      |             |   |      |   |           
|                                                          |  |     
|Basic income (loss) per common share                      |  | $    | (2.51       | ) |      | $ | 2.20      
|                                                          |  |     
|Diluted income (loss) per common share                    |  | $    | (2.51       | ) |      | $ | 1.76      

See accompanying notes to the consolidated financial statements.



5



---

PrimeEnergy Corporation

Consolidated Statement of Operations

Three Months Ended June 30, 2009 and 2008

(Unaudited)



|                                                          |  |      |            |   |      |   |            |  
|--------------------------------------------------------- |  | ---- | ---------- | - | ---- | - | ---------- | -
|                                                          |  | 2009 |            |   | 2008 |  
|Revenue:                                                  |  |      |            |   |      |   |            |  
|Oil and gas sales                                         |  | $    | 16,511,000 |   |      | $ | 40,547,000 |  
|Field service income                                      |  |      | 4,224,000  |   |      |   | 6,494,000  |  
|Administrative overhead fees                              |  |      | 2,048,000  |   |      |   | 2,300,000  |  
|Other income                                              |  |      | 3,000      |   |      |   | (5,000     | )
|                                                          |  |      |            |   |      |   |            |  
|Total revenue                                             |  |      | 22,786,000 |   |      |   | 49,336,000 |  
|                                                          |  |      |            |   |      |   |            |  
|                                                          |  |     
|Costs and expenses:                                       |  |      |            |   |      |   |            |  
|Lease operating expense                                   |  |      | 8,451,000  |   |      |   | 11,454,000 |  
|Field service expense                                     |  |      | 4,139,000  |   |      |   | 4,804,000  |  
|Depreciation, depletion and amortization                  |  |      | 10,364,000 |   |      |   | 18,709,000 |  
|Loss on settlement of asset retirement obligation         |  |      | 1,611,000  |   |      |   |           |  
|General and administrative expense                        |  |      | 2,757,000  |   |      |   | 4,065,000  |  
|Exploration costs                                         |  |      |           |   |      |   | 242,000    |  
|                                                          |  |      |            |   |      |   |            |  
|Total costs and expenses                                  |  |      | 27,322,000 |   |      |   | 39,274,000 |  
|                                                          |  |      |            |   |      |   |            |  
|Gain (loss) on sale and exchange of assets                |  |      | 104,000    |   |      |   | 93,000     |  
|                                                          |  |      |            |   |      |   |            |  
|Income (loss) from operations                             |  |      | (4,432,000 | ) |      |   | 10,155,000 |  
|                                                          |  |     
|Other income and expenses:                                |  |      |            |   |      |   |            |  
|Less: interest expense                                    |  |      | 1,569,000  |   |      |   | 1,929,000  |  
|Add interest income                                       |  |      | 28,000     |   |      |   | 104,000    |  
|                                                          |  |      |            |   |      |   |            |  
|                                                          |  |     
|Income (loss) before provision (benefit) for income taxes |  |      | (5,973,000 | ) |      |   | 8,330,000  |  
|Provision (benefit) for income taxes                      |  |      | (1,987,000 | ) |      |   | 2,063,000  |  
|                                                          |  |      |            |   |      |   |            |  
|Net income (loss)                                         |  |      | (3,986,000 | ) |      |   | 6,267,000  |  
|                                                          |  |      |            |   |      |   |            |  
|                                                          |  |     
|Less: Net income attributable to non-controlling interest |  |      | 168,000    |   |      |   | 2,248,000  |  
|                                                          |  |      |            |   |      |   |            |  
|Net income (loss) attributable to PrimeEnergy             |  | $    | (4,154,000 | ) |      | $ | 4,019,000  |  
|                                                          |  |      |            |   |      |   |            |  
|                                                          |  |     
|Basic income (loss) per common share                      |  | $    | (1.37      | ) |      | $ | 1.31       |  
|                                                          |  |     
|Diluted income (loss) per common share                    |  | $    | (1.37      | ) |      | $ | 1.05       |  

See accompanying notes to the consolidated financial statements.



6



---

PrimeEnergy Corporation

Consolidated Statement of Stockholders Equity

Six Months Ended June 30, 2009

(Unaudited)



|                                                |  |              |  |                |         |  |                  |            |   |                                          |   |            |                |  |   |                          |   |  |                         |             |   |              |   |            |   |  |   |            |   |  |   |            |  
|----------------------------------------------- |  | ------------ |  | -------------- | ------- |  | ---------------- | ---------- | - | ---------------------------------------- | - | ---------- | -------------- |  | - | ------------------------ | - |  | ----------------------- | ----------- | - | ------------ | - | ---------- | - |  | - | ---------- | - |  | - | ---------- | -
|                                                |  | Common
Stock |  | Paid inCapital |         |  | RetainedEarnings |            |   | AccumulatedOtherComprehensiveIncome/Loss |   |            | Treasury Stock |  |   | TotalStockholdersEquity |   |  | Non-ControllingInterest |             |   | Total Equity |  
|                                                |  | Shares       |  | Amount         |         |  |                  |            |   |                                          |  
|Balance at December 31, 2008                    |  | 7,694,970    |  | $              | 769,000 |  | $                | 11,024,000 |   |                                          | $ | 73,426,000 |                |  | $ | 1,009,000                |   |  | $                       | (36,940,000 | ) |              | $ | 49,288,000 |   |  | $ | 10,645,000 |   |  | $ | 59,933,000 |  
|Purchased 6,782 shares of common stock          |  |              |  |                |         |  |                  |            |   |                                          |   |            |                |  |   |                          |   |  |                         | (268,000    | ) |              |   | (268,000   | ) |  |   |            |   |  |   | (268,000   | )
|Net loss                                        |  |              |  |                |         |  |                  |            |   |                                          |   | (7,652,000 | )              |  |   |                          |   |  |                         |             |   |              |   | (7,652,000 | ) |  |   | 183,000    |   |  |   | (7,469,000 | )
|Other comprehensive income (loss), net of taxes |  |              |  |                |         |  |                  |            |   |                                          |   |            |                |  |   | (1,450,000               | ) |  |                         |             |   |              |   | (1,450,000 | ) |  |   |            |   |  |   | (1,450,000 | )
|Purchase of non-controlling interests           |  |              |  |                |         |  |                  | (52,000    | ) |                                          |   |            |                |  |   |                          |   |  |                         |             |   |              |   | (52,000    | ) |  |   | (95,000    | ) |  |   | (147,000   | )
|Distributions to non-controlling interests      |  |              |  |                |         |  |                  |            |   |                                          |   |            |                |  |   |                          |   |  |                         |             |   |              |   |            |   |  |   | (631,000   | ) |  |   | (631,000   | )
|                                                |  |              |  |                |         |  |                  |            |   |                                          |   |            |                |  |   |                          |   |  |                         |             |   |              |   |            |   |  |   |            |   |  |   |            |  
|Balance at June 30, 2009                        |  | 7,694,970    |  | $              | 769,000 |  | $                | 10,972,000 |   |                                          | $ | 65,774,000 |                |  | $ | (441,000                 | ) |  | $                       | (37,208,000 | ) |              | $ | 39,866,000 |   |  | $ | 10,102,000 |   |  | $ | 49,968,000 |  
|                                                |  |              |  |                |         |  |                  |            |   |                                          |   |            |                |  |   |                          |   |  |                         |             |   |              |   |            |   |  |   |            |   |  |   |            |  

See accompanying notes to the consolidated financial statements.



7



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PrimeEnergy Corporation

Consolidated Statement of Comprehensive Income



|                                                                                                         |  |                           |            |   |                           |   |             |  
|-------------------------------------------------------------------------------------------------------- |  | ------------------------- | ---------- | - | ------------------------- | - | ----------- | -
|                                                                                                         |  | Quarter EndedJune 30,2009 |            |   | Quarter EndedJune 30,2008 |  
|Net Income (loss)                                                                                        |  | $                         | (7,652,000 | ) |                           | $ | 6,750,000   |  
|                                                                                                         |  |                          
|Other Comprehensive Income (Loss), net of taxes:                                                         |  |                           |            |   |                           |   |             |  
|Reclassification Adjustment for Settled Contracts, net of taxes of $442,000 and $2,409,000, respectively |  |                           | 785,000    |   |                           |   | (4,284,000  | )
|Changes in Fair Value of Hedge Positions, net of taxes of $1,257,000 and $15,275,000, respectively       |  |                           | (2,235,000 | ) |                           |   | (27,156,000 | )
|                                                                                                         |  |                           |            |   |                           |   |             |  
|Total Other Comprehensive Income (Loss)                                                                  |  |                           | (1,450,000 | ) |                           |   | (31,440,000 | )
|                                                                                                         |  |                           |            |   |                           |   |             |  
|                                                                                                         |  |                          
|Comprehensive Income (loss)                                                                              |  |                           | (9,102,000 | ) |                           |   | (24,690,000 | )
|                                                                                                         |  |                           |            |   |                           |   |             |  
|Less: Comprehensive income attributable to non-controlling interest                                      |  |                           | (183,000   | ) |                           |   | (3,894,000  | )
|                                                                                                         |  |                           |            |   |                           |   |             |  
|Comprehensive income (loss) attributable to common stockholders                                          |  | $                         | (8,919,000 | ) |                           | $ | (20,796,000 | )
|                                                                                                         |  |                           |            |   |                           |   |             |  

See accompanying notes to the consolidated financial statements.



8



---

PrimeEnergy Corporation

Consolidated Statements of Cash Flows

Six Months Ended June 30, 2009 and 2008

(Unaudited)



|                                                                                         |  |      |             |   |      |   |             |  
|---------------------------------------------------------------------------------------- |  | ---- | ----------- | - | ---- | - | ----------- | -
|                                                                                         |  | 2009 |             |   | 2008 |  
|Cash flows from operating activities:                                                    |  |      |             |   |      |   |             |  
|Net income (loss)                                                                        |  | $    | (7,652,000  | ) |      | $ | 6,750,000   |  
|Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |      |             |   |      |   |             |  
|Depreciation, depletion, amortization and accretion on discounted liabilities            |  |      | 22,132,000  |   |      |   | 35,629,000  |  
|(Gain) loss on sale of properties                                                        |  |      | (200,000    | ) |      |   | (78,000     | )
|Provision for deferred taxes                                                             |  |      | (2,836,000  | ) |      |   | 1,340,000   |  
|Loss on settlement of asset retirement obligation                                        |  |      | 1,611,000   |   |      |   |            |  
|Non-controlling interest in earnings of partnerships                                     |  |      | 183,000     |   |      |   | 3,894,000   |  
|Changes in assets and liabilities:                                                       |  |      |             |   |      |   |             |  
|(Increase) decrease in accounts receivable                                               |  |      | 6,825,000   |   |      |   | (7,112,000  | )
|(Increase) decrease in due from related parties                                          |  |      | (214,000    | ) |      |   | 738,000     |  
|(Increase) decrease in inventories                                                       |  |      | 16,000      |   |      |   | 459,000     |  
|(Increase) decrease in prepaid expenses and other assets                                 |  |      | 789,000     |   |      |   | (1,581,000  | )
|Increase (decrease) in accounts payable                                                  |  |      | (1,016,000  | ) |      |   | 12,860,000  |  
|Increase (decrease) in accrued liabilities                                               |  |      | (1,144,000  | ) |      |   | 1,404,000   |  
|Increase (decrease) in due to related parties                                            |  |      | 193,000     |   |      |   | (384,000    | )
|                                                                                         |  |      |             |   |      |   |             |  
|Net cash provided by operating activities:                                               |  |      | 18,687,000  |   |      |   | 53,919,000  |  
|                                                                                         |  |      |             |   |      |   |             |  
|                                                                                         |  |     
|Cash flows from investing activities:                                                    |  |      |             |   |      |   |             |  
|Capital expenditures, including exploration expense                                      |  |      | (9,382,000  | ) |      |   | (33,126,000 | )
|Proceeds from sale of property and equipment                                             |  |      | 200,000     |   |      |   | 78,000      |  
|                                                                                         |  |      |             |   |      |   |             |  
|Net cash (used in) investing activities                                                  |  |      | (9,182,000  | ) |      |   | (33,048,000 | )
|                                                                                         |  |      |             |   |      |   |             |  
|                                                                                         |  |     
|Cash flows from financing activities:                                                    |  |      |             |   |      |   |             |  
|Purchase of treasury stock                                                               |  |      | (268,000    | ) |      |   | (4,314,000  | )
|Purchase of non-controlling interests                                                    |  |      | (147,000    | ) |      |   |            |  
|Proceeds from long-term bank debt and other long-term obligations                        |  |      | 31,829,000  |   |      |   | 72,175,000  |  
|Repayment of long-term bank debt and other long-term obligations                         |  |      | (41,897,000 | ) |      |   | (87,959,000 | )
|Distribution to non-controlling interest                                                 |  |      | (631,000    | ) |      |   | (2,808,000  | )
|                                                                                         |  |      |             |   |      |   |             |  
|Net cash (used in) financing activities                                                  |  |      | (11,114,000 | ) |      |   | (22,906,000 | )
|                                                                                         |  |      |             |   |      |   |             |  
|Net (decrease) in cash and cash equivalents                                              |  |      | (1,609,000  | ) |      |   | (2,035,000  | )
|                                                                                         |  |     
|Cash and cash equivalents at the beginning of the period                                 |  |      | 11,808,000  |   |      |   | 25,373,000  |  
|                                                                                         |  |      |             |   |      |   |             |  
|Cash and cash equivalents at the end of the period                                       |  | $    | 10,199,000  |   |      | $ | 23,338,000  |  
|                                                                                         |  |      |             |   |      |   |             |  

See accompanying notes to the consolidated financial statements.



9



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PrimeEnergy Corporation

Notes to Consolidated Financial Statements

June 30, 2009



|(1) | Interim Financial Statements:
|--- | -----------------------------

The accompanying
consolidated financial statements of PrimeEnergy Corporation (PEC), with the exception of the consolidated balance sheet at December 31, 2008, have not been audited by independent public accountants. In the opinion of management,
the accompanying financial statements reflect all adjustments necessary to present fairly our financial position at June 30, 2009,net income (loss), comprehensive income (loss) and cash flows for the six and three months ended
June 30, 2009 and 2008. All such adjustments are of a normal recurring nature. Certain amounts presented in prior period financial statements have been reclassified for consistency with current period presentation. The results for interim
periods are not necessarily indicative of annual results. Subsequent events have been evaluated through August 13, 2009, which is also the date that the financial statements were issued.

Recently Adopted Accounting Standards

On January 1, 2009, the Company adopted Statement of Financial Accounting Standards (SFAS) No. 160, Noncontrolling Interests in Consolidated Financial StatementsAn Amendment of ARB No. 51
(SFAS 160). SFAS 160 establishes accounting and reporting standards for (1) ownership interests in subsidiaries held by others, (2) the amount of consolidated net income attributable to the controlling and noncontrolling
interests, (3) changes in the controlling ownership interest, (4) the valuation of retained noncontrolling equity investments when a subsidiary is deconsolidated and (5) disclosures that clearly identify and distinguish between the
interests of the controlling and noncontrolling owners. The adoption of SFAS 160 resulted in changes to our presentation for noncontrolling interests but did not have a material impact on the Companys results of operations and financial
condition. Certain prior period balances have been restated to reflect the changes required by SFAS 160.

In April 2009, the FASB issued FSP
No. FAS 157-4, Determining Fair Value When the Volume and Level of Activity for the Asset or Liability Have Significantly Decreased and Identifying Transactions That Are Not Orderly, which provides additional guidance in accordance with
SFAS No. 157. If an entity determines that either the volume or level of activity for an asset or liability has significantly decreased from normal conditions, or that price quotations or observable inputs are not associated with orderly
transactions, increased analysis and management judgment will be required to estimate fair value. The objective in fair value measurement remains unchanged from what is prescribed in SFAS No. 157 and should be reflective of the current exit
price. Disclosures in interim and annual periods must include inputs and valuation techniques used to measure fair value, along with any changes in valuation techniques and related inputs during the period. In addition, disclosures for debt and
equity securities must be provided on a more disaggregated basis than what was required in FAS No. 157. FSP No. FAS 157-4 became effective for interim and annual reporting periods ending after June 15, 2009. FSP No. FAS 157-4 did not have
a material impact on the Companys financial position, results of operations or cash flows.

In April 2009, the FASB issued FSP No. FAS
107-1 and Accounting Principles Bulletin (APB) No. 28-1, Interim Disclosures about Fair Value of Financial Instruments, to require disclosures about fair value of financial instruments for publicly traded companies for both interim
and annual periods. Historically, these disclosures were only required annually. The interim disclosures are intended to provide financial statement users with more timely and transparent information about the effects of current market conditions on
an entitys financial instruments that are not otherwise reported at fair value. FSP No. FAS 107-1 became effective for interim reporting periods ending after June 15, 2009. Comparative disclosures are only required for periods ending
after the initial adoption. FSP No. FAS 107-1 did not have a material impact on the Companys financial position, results of operations or cash flows.

In April 2009, the FASB issued FSP No. FAS 115-2 and FAS 124-2, Recognition and Presentation of Other-Than-Temporary Impairments, which amends the other-than-temporary impairment guidance for debt
securities to make the guidance more operational and to improve the presentation and disclosure of other-than-temporary impairments on debt and equity securities in the financial statements. FSP No. FAS 115-2 and FAS 124-2 does not amend existing
recognition and measurement guidance for equity securities, but does establish a new method of recognizing and reporting for debt securities. Disclosure requirements for impaired debt and equity securities have been expanded significantly and are
now required quarterly, as well as annually. FSP No. FAS 115-2 and FAS 124-2 became effective for interim and annual reporting periods ending after June 15, 2009. Comparative disclosures are only required for periods ending after the initial
adoption. FSP No. FAS 115-2 and FAS 124-2 did not have a material impact on the Companys financial position, results of operations or cash flows.

In June 2009, the FASB issued SFAS No. 165, Subsequent Events, which requires entities to disclose the date through which they have evaluated subsequent events and whether the date corresponds with
the release of their financial statements. In addition, a new concept of financial statements being available to be issued was introduced. SFAS No. 165 is effective for interim and annual periods ending after June 15, 2009.
SFAS No. 165 did not have any impact on the Companys financial position, results of operations or cash flows.



10



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Recently Issued Accounting Pronouncements

In December 2008, the SEC issued Release No. 33-8995, Modernization of Oil and Gas Reporting, which amends the oil and gas disclosures
for oil and gas producers contained in Regulations S-K and S-X, as well as adding a section to Regulation S-K (Subpart 1200) to codify the revised disclosure requirements in Securities Act Industry Guide 2, which is being phased out. The goal of
Release No. 33-8995 is to provide investors with a more meaningful and comprehensive understanding of oil and gas reserves. Energy companies affected by Release No. 33-8995 will be required to price proved oil and gas reserves using the
unweighted arithmetic average of the price on the first day of each month within the 12-month period prior to the end of the reporting period, unless prices are defined by contractual arrangements, excluding escalations based on future conditions.
SEC Release No. 33-8995 is effective beginning January 1, 2010. The Company is currently evaluating what impact Release No. 33-8995 may have on its financial position, results of operations or cash flows.

In June 2009, the FASB issued SFAS No. 166, Accounting for Transfers of Financial Assets. SFAS No. 166 revises SFAS No. 140 and
will require entities to provide more information about sales of securitized financial assets and similar transactions, particularly if the seller retains some risk to the assets. SFAS No. 166 will be effective at the beginning of the first
fiscal year beginning after November 15, 2009. As the Company does not anticipate having any of these types of transactions in the near future, SFAS No. 166 is not expected to have any impact on its financial position, results of
operations or cash flows.

In July 2009, the FASB issued SFAS No. 168, The FASB Accounting Standards Codification and the
Hierarchy of Generally Accepted Accounting Principles as the sole source of authoritative non-governmental U.S. generally accepted accounting principles (GAAP). The Codification is not intended to change U.S. GAAP; however, references to
various accounting pronouncements and literature will differ from what is currently being used in practice. As of July 1, 2009, the FASB no longer issues Statements, Interpretations, Staff Positions or EITF Abstracts. All guidance in the
Codification has an equal level of authority. SFAS No. 168 will be effective for financial statements that cover interim and annual periods ending after September 15, 2009. Once effective, it will supersede all accounting standards in U.S.
GAAP, aside from those issued by the SEC. There will be no impact on the Companys financial position, results of operations or cash flows as a result of the Codification.



|(2) | Significant Acquisitions, Dispositions and Property Activity
|--- | ------------------------------------------------------------

The Company makes an annual offer to repurchase the interests of the partners and trust unit holders in certain of the Partnerships and Trusts. The Company purchased such interests in an amount totaling $147,000 for the six months ended
June 30, 2009 and $481,000 for the year ended December 31, 2008.



|(3) | Restricted Cash and Cash Equivalents:
|--- | -------------------------------------

Restricted cash and
cash equivalents include $5,482,000 and $8,027,000 at June 30, 2009 and December 31, 2008, respectively, of cash primarily pertaining to undistributed revenue payments. There were corresponding accounts payable recorded at June 30,
2009 and December 31, 2008 for these liabilities.



11



---

|(4) | Additional Balance Sheet Information
|--- | ------------------------------------

Certain balance
sheet amounts are comprised of the following:



|                                  |  |               |            |   |                   |   |            |  
|--------------------------------- |  | ------------- | ---------- | - | ----------------- | - | ---------- | -
|                                  |  | June 30, 2009 |            |   | December 31, 2008 |  
|Accounts Receivable:              |  |               |            |   |                   |   |            |  
|Joint interest billing            |  | $             | 2,869,000  |   |                   | $ | 2,244,000  |  
|Trade receivables                 |  |               | 1,708,000  |   |                   |   | 7,270,000  |  
|Oil and gas sales                 |  |               | 6,687,000  |   |                   |   | 8,426,000  |  
|Other                             |  |               | 927,000    |   |                   |   | 608,000    |  
|                                  |  |               |            |   |                   |   |            |  
|                                  |  |               | 12,191,000 |   |                   |   | 18,548,000 |  
|Allowance for doubtful accounts   |  |               | (759,000   | ) |                   |   | (291,000   | )
|                                  |  |               |            |   |                   |   |            |  
|                                  |  | $             | 11,432,000 |   |                   | $ | 18,257,000 |  
|                                  |  |               |            |   |                   |   |            |  
|                                  |  |              
|Accounts Payable:                 |  |               |            |   |                   |   |            |  
|Trade                             |  | $             | 9,194,000  |   |                   | $ | 9,753,000  |  
|Royalty and other owners          |  |               | 8,350,000  |   |                   |   | 13,215,000 |  
|Other                             |  |               | 5,415,000  |   |                   |   | 3,747,000  |  
|                                  |  |               |            |   |                   |   |            |  
|Total                             |  | $             | 22,959,000 |   |                   | $ | 26,715,000 |  
|                                  |  |               |            |   |                   |   |            |  
|                                  |  |              
|Accrued Liabilities:              |  |               |            |   |                   |   |            |  
|Compensation and related expenses |  | $             | 2,182,000  |   |                   | $ | 2,185,000  |  
|Property cost                     |  |               | 1,346,000  |   |                   |   | 5,582,000  |  
|Income tax                        |  |               | 64,000     |   |                   |   | 504,000    |  
|Other                             |  |               | 1,211,000  |   |                   |   | 2,206,000  |  
|                                  |  |               |            |   |                   |   |            |  
|Total                             |  | $             | 4,803,000  |   |                   | $ | 10,477,000 |  
|                                  |  |               |            |   |                   |   |            |  



|(5) | Property and Equipment:
|--- | -----------------------

Property and equipment at
June 30, 2009 and December 31, 2008 consisted of the following:



|                                         |  |              |              |   |                  |   |              |  
|---------------------------------------- |  | ------------ | ------------ | - | ---------------- | - | ------------ | -
|                                         |  | June 30,2009 |              |   | December 31,2008 |  
|Proved oil and gas properties, at cost   |  | $            | 431,456,000  |   |                  | $ | 427,174,000  |  
|Unproved oil and gas properties, at cost |  |              | 2,442,000    |   |                  |   | 2,409,000    |  
|Accumulated depletion and depreciation   |  |              | (237,667,000 | ) |                  |   | (217,434,000 | )
|                                         |  |              |              |   |                  |   |              |  
|                                         |  | $            | 196,231,000  |   |                  | $ | 212,149,000  |  
|                                         |  |             
|Field service equipment and other        |  |              | 19,456,000   |   |                  |   | 19,513,000   |  
|Accumulated depreciation                 |  |              | (11,716,000  | ) |                  |   | (11,197,000  | )
|                                         |  |              |              |   |                  |   |              |  
|                                         |  | $            | 7,740,000    |   |                  | $ | 8,316,000    |  
|                                         |  |              |              |   |                  |   |              |  
|Total net property and equipment         |  | $            | 203,971,000  |   |                  | $ | 220,465,000  |  
|                                         |  |              |              |   |                  |   |              |  



|(6) | Long-Term Bank Debt:
|--- | --------------------

The Company has credit facilities
totaling $360 million, consisting of a $200 million credit facility through Guaranty Bank (the offshore facility) and a $160 million credit facility through a syndicate of banks led by Guaranty Bank (the onshore facility). The offshore
facilitys maturity date is 2010 and onshore credit facility matures in 2011.

Availability under the credit facilities is based on the
loan value assigned to PECs oil and gas properties. The determination of the Borrowing Base is made by the lenders taking into consideration the estimated value of PECs oil and gas properties in accordance with the lenders
customary practices for oil and gas loans. This process involves reviewing PECs estimated proved reserves and their valuation. The Borrowing Base is re-determined semi-annually, and the available borrowing amount could be increased or
decreased as a result of such redetermination. In addition, PEC and the lenders each have discretion at any time to have the Borrowing Base re-determined. A revision to PECs reserves may prompt such a request on the part of the lenders, which
could possibly result in a reduction in the Borrowing Base and availability under the credit facilities. If outstanding borrowings under either of the credit facilities exceed the applicable portion of the Borrowing Base, PEC would be required to
repay the excess amount within a prescribed period. If the Company is unable to pay the excess amount, it would cause an event of default.



12



---

The credit facilities include terms and covenants that require the Company to maintain, as defined, a
minimum current ratio, tangible net worth, debt coverage ratio and interest coverage ratio, and restrictions are placed on the payment of dividends and the amount of treasury stock the Company may purchase. The credit facilities are collateralized
by substantially all of the Companys assets. The Company is required to mortgage, and grant a security interest in, consolidated proved oil and gas properties. PEC also pledged the stock of several subsidiaries to the lenders to secure the
credit facilities.

During June 2009 the Company amended both its onshore and offshore credit facilities. The onshore facility Borrowing
Base was $100 million with a monthly Borrowing Base reduction of $2 million which begins December 1, 2009. The offshore facility Borrowing Base was reduced to $10 million with a principal payment of $3.37 million due on July 1, 2009
followed by monthly payments and Borrowing Base reduction of $500,000 starting in August 2009. In both facilities the companys borrowing rates have a floor of 2% plus applicable margin rates that vary between 3% to 5% depending on which
facility, the value of current borrowing and the actual available Borrowing Base.

At June 30, 2009, the borrowing base was $100
million and the outstanding balance of the Companys bank debt was $84 million under the onshore credit facility at a weighted average interest rate of 4.51%. Under the offshore credit facility, the outstanding balance was $12.87 million, with
no further availability, at a weighted average interest rate of 3.59%. Total outstanding bank debt was $96.87 million at June 30, 2009. The combined average interest rates paid on outstanding bank borrowings subject to interest at the
banks base rate and on outstanding bank borrowings bearing interest based upon the LIBO rate were 4.47% during 2009 as compared to 6.03% during 2008.

The Company entered into interest rate hedge agreements to help manage interest rate exposure. These contracts include interest rate swaps. Interest rate swap transactions generally involve the exchange of fixed and
floating rate interest payment obligations without the exchange of the underlying principal amounts. The Company entered into interest swap agreements for a period of two years, beginning in April 2008, related to $60 million of Company bank debt
resulting in a fixed rate of 2.375% plus the companys current applicable margin. The underlying debt contracts above are re-priced quarterly based upon the three-month LIBO rates, the companys floor of 2% and the applicable margin per
the onshore credit facility.

Indebtedness to related partiesnon-current:

During the second quarter 2008, the Companys offshore subsidiary entered into a subordinated credit facility with a private lender with an
availability of $50 million. The private lender had specific collateral pledged under a separate credit agreement. The private lender is a member of the Companys Board of Directors. Effective June 30, 2009, the private lender agreed to
release the pledged collateral under this credit facility in favor of the offshore credit facility in exchange for a second lien position on all of the assets of the offshore subsidiary and a pledge from PEC to pay the outstanding balance under the
facility in full after PECs current bank debt is paid off and not take on any additional debt on its existing asset base. This amended facility will mature in January 2012, which will be accelerated if there is a change in control or
management of PrimeEnergy Corporation, and bears interest at a rate of 10% per annum. As of June 30, 2009 advances from this facility amounted to $20 million.



|(7) | Other Long-Term Obligations and Commitments:
|--- | --------------------------------------------

Operating
Leases:

The Company has several non-cancelable operating leases, primarily for rental of office space, that have a term of more than one
year.



|                                   |  |                  |          
|---------------------------------- |  | ---------------- | ---------
|                                   |  | Operating Leases
|2009 (July 1 through December 31,) |  |                  | 340,000  
|2010                               |  |                  | 430,000  
|2011                               |  |                  | 374,000  
|2012                               |  |                  | 121,000  
|Thereafter                         |  |                  |         
|                                   |  |                  |          
|Total minimum payments             |  | $                | 1,265,000
|                                   |  |                  |          



13



---

Asset Retirement Obligation:

A reconciliation of the liability for plugging and abandonment costs for the Six Months Ended June 30, 2009 and the year ended December 31, 2008
is as follows:



|                                                  |  |              |            |   |                  |   |            |  
|------------------------------------------------- |  | ------------ | ---------- | - | ---------------- | - | ---------- | -
|                                                  |  | June 30,2009 |            |   | December 31,2008 |  
|Asset retirement obligation  beginning of period |  | $            | 19,541,000 |   |                  | $ | 17,361,000 |  
|Liabilities incurred                              |  |              |           |   |                  |   | 627,000    |  
|Liabilities settled                               |  |              | (1,596,000 | ) |                  |   | (1,292,000 | )
|Accretion expense                                 |  |              | 980,000    |   |                  |   | 1,395,000  |  
|Revisions in estimated liabilities                |  |              |           |   |                  |   | 1,450,000  |  
|                                                  |  |              |            |   |                  |   |            |  
|Asset retirement obligation  end of period       |  | $            | 18,925,000 |   |                  | $ | 19,541,000 |  
|                                                  |  |              |            |   |                  |   |            |  

The Companys liability is determined using significant assumptions, including current
estimates of plugging and abandonment costs, annual inflation of these costs, the productive life of wells and the risk-adjusted interest rate. Changes in any of these assumptions can result in significant revisions to the estimated asset retirement
obligation. Revisions to the asset retirement obligation are recorded with an offsetting change to producing properties, resulting in prospective changes to depreciation, depletion and amortization expense and accretion of discount. Because of the
subjectivity of assumptions and the relatively long life of most of the wells, the costs to ultimately retire the wells may vary significantly from previous estimates.



|(8) | Contingent Liabilities:
|--- | -----------------------

PrimeEnergy Management
Corporation, a wholly-owned subsidiary, acts as the managing general partner for 18 limited partnerships and 2 trusts (collectively, the Partnerships). The Company, as managing general partner of the affiliated Partnerships, is
responsible for all Partnership activities, including the drilling of development wells and the production and sale of oil and gas from productive wells. The Company also provides the administration, accounting and tax preparation work for the
Partnerships, and is liable for all debts and liabilities of the affiliated Partnerships, to the extent that the assets of a given limited Partnership are not sufficient to satisfy its obligations. As of June 30, 2009, the affiliated
Partnerships have established cash reserves in excess of their debts and liabilities and the Company believes these reserves will be sufficient to satisfy Partnership obligations.

The Company is subject to environmental laws and regulations. Management believes that future expenses, before recoveries from third parties, if any, will
not have a material effect on the Companys financial condition. This opinion is based on expenses incurred to date for remediation and compliance with laws and regulations which have not been material to the Companys results of
operations.



|(9) | Stock Options and Other Compensation:
|--- | -------------------------------------

In May 1989,
non-statutory stock options were granted by the Company to four key executive officers for the purchase of shares of common stock. At June 30, 2009 and 2008, options on 767,500 were outstanding and exercisable at prices ranging from $1.00 to
$1.25, and having no expiration date.



|(10) | Related Party Transactions:
|---- | ---------------------------

The Company makes an annual
offer to repurchase the interests of the partners and trust unit holders in certain of the Partnerships and Trusts. The Company purchased such interests in an amount totaling $147,000 for the six months ending June 30, 2009 and $481,000 for the
year ending December 31, 2008.

Treasury stock purchases in any reported period may include shares acquired from a related party. There
were no related party treasury stock purchases during the second quarter of 2009. Purchases from related parties in 2008 included 70,000 shares purchased for a total consideration of $3,500,000.

Receivables from related parties consist of reimbursable general and administrative costs, lease operating expenses and reimbursement for property
development and related costs. These receivables are due from joint venture partners, which may include members of the Companys Board of Directors.

Payables owed to related parties primarily represent receipts collected by the Company as agent for the joint venture partners, which may include members of the Companys Board of Directors, for oil and gas sales
net of expenses. Also included in due to related parties is the amount of accrued interest owed to the related party, a member of the Companys Board of Directors, with whom the Companys offshore subsidiary entered into a credit
agreement. The agreement provides for a loan of $20 million at a rate of 10% annum and is secured by a second lien position of all of the assets of the offshore subsidiary. Included at June 30, 2009 was $164,000 of accrued interest on the
related party loan.



14



---

|(11) | Financial Instruments
|---- | ---------------------

Adoption of SFAS No. 157

In September 2006, the FASB issued SFAS No. 157, Fair Value Measurements, which establishes a formal framework for
measuring fair values of assets and liabilities in financial statements that are already required by United States generally accepted accounting principles to be measured at fair value. SFAS No. 157 clarifies guidance in FASB Concepts Statement
(CON) No. 7 which discusses present value techniques in measuring fair value. Additional disclosures are also required for transactions measured at fair value. SFAS No. 157 is effective for fiscal years beginning after November 15,
2007, and interim periods within those fiscal years. In February 2008, the FASB issued FASB Staff Position (FSP) No. FAS 157-2, Effective Date of FASB Statement No. 157, which granted a one year deferral (to fiscal years beginning
after November 15, 2008, and interim periods within those fiscal years) for certain non-financial assets and liabilities to comply with SFAS No. 157. Additionally, in February 2008, the FASB issued FSP No. FAS 157-1, Application of
FASB Statement No. 157 to FASB Statement No. 13 and Other Accounting Pronouncements That Address Fair Value Measurements for Purposes of Lease Classification or Measurement under Statement 13, which amends SFAS No. 157 to
exclude SFAS No. 13 and related pronouncements that address fair value measurements for purposes of lease classification and measurement. FSP No. FAS 157-1 is effective upon the initial adoption of SFAS No. 157. The Company has adopted
SFAS No. 157 and the related FSPs discussed above which did not have an impact on its financial position or results of operations for the period ended June 30, 2009.

As defined in SFAS No. 157, fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction
between market participants at the measurement date (exit price). The transaction is based on a hypothetical transaction in the principal or most advantageous market considered from the perspective of the market participant that holds the asset or
owes the liability.

The valuation techniques that can be used under SFAS No. 157 are the market approach, income approach or cost
approach. The market approach uses prices and other information for market transactions involving identical or comparable assets or liabilities, such as matrix pricing. The income approach uses valuation techniques to convert future amounts to a
single discounted present amount based on current market conditions about those future amounts, such as present value techniques, option pricing models (i.e. Black-Scholes model) and binomial models (i.e. Monte-Carlo model). The cost approach is
based on current replacement cost to replace an asset.

The Company utilizes market data or assumptions that market participants who are
independent, knowledgeable and willing and able to transact would use in pricing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. These inputs can be readily observable, market
corroborated or generally unobservable. The Company attempts to utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. The Company is able to classify fair value balances based on the
observability of those inputs. SFAS No. 157 establishes a formal fair value hierarchy based on the inputs used to measure fair value. The hierarchy gives the highest priority level 1 measurements and the lowest priority to level 3 measurements,
and accordingly, level 1 measurements should be used whenever possible.

The three levels of the fair value hierarchy as defined by SFAS
No. 157 are as follows:



| |  |  | Level 1: Valuations utilizing quoted, unadjusted prices for identical assets or liabilities in active markets that the Company has the ability to access. This is
the most reliable evidence of fair value and does not require a significant degree of judgment. Examples include exchange-traded derivatives and listed equities that are actively traded.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Level 2: Valuations utilizing quoted prices in markets that are not considered to be active or financial instruments for which all significant inputs are
observable, either directly or indirectly for substantially the full term of the asset or liability. Financial instruments that are valued using models or other valuation methodologies are included. Models used should primarily be industry-standard
models that consider various assumptions and economic measures, such as interest rates, yield curves, time value, volatilities, contract terms, current market prices, credit risk or other market-corroborated inputs. Examples include most
over-the-counter derivatives (non-exchange traded), physical commodities, most structured notes and municipal and corporate bonds.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Level 3: Valuations utilizing significant, unobservable inputs. This provides the least objective evidence of fair value and requires a significant degree of
judgment. Inputs may be used with internally developed methodologies and should reflect an entitys assumptions using the best information available about the assumptions that market participants would use in pricing an asset or liability.
Examples include certain corporate loans, real-estate and private equity investments and long-dated or complex over-the-counter derivatives.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



15



---

Depending on the particular asset or liability, input availability can vary depending on factors such as
product type, longevity of a product in the market and other particular transaction conditions. In some cases, certain inputs used to measure fair value may be categorized into different levels of the fair value hierarchy. For disclosure purposes
under SFAS No. 157, the lowest level that contains significant inputs used in valuation should be chosen. Per SFAS No. 157, the Company has classified its assets and liabilities into these levels depending upon the data relied on to
determine the fair values. The fair values of the Companys natural gas and crude oil price collars and swaps are valued based upon quotes obtained from counterparties to the agreements and are designated as Level 3.

The following fair value hierarchy table presents information about the Companys assets and liabilities measured at fair value on a recurring basis
as of June 30, 2009:



|                                   |  |                                                             |  |                                            |  |                                         |          |   |                           |   |          |  
|---------------------------------- |  | ----------------------------------------------------------- |  | ------------------------------------------ |  | --------------------------------------- | -------- | - | ------------------------- | - | -------- | -
|                                   |  | Quoted Prices inActive MarketsFor IdenticalAssets (Level 1) |  | SignificantOtherObservableInputs (Level 2) |  | SignificantUnobservableInputs (Level 3) |          |   | Balance as ofJune 30,2009 |  
|Liabilities                        |  |                                                             |  |                                            |  |                                         |          |   |                           |   |          |  
|                                   |  |                                                             |  |                                           
|Interest Rate Derivative Contracts |  |                                                            |  |                                           |  | $                                       | (690,000 | ) |                           | $ | (690,000 | )
|                                   |  |                                                             |  |                                            |  |                                         |          |   |                           |   |          |  
|                                   |  |                                                             |  |                                           
|Total Liability                    |  |                                                            |  |                                           |  | $                                       | (690,000 | ) |                           | $ | (690,000 | )
|                                   |  |                                                             |  |                                            |  |                                         |          |   |                           |   |          |  

The derivative contracts were measured based on quotes from the Companys counterparties.
Such quotes have been derived using a model that considers various inputs including current market and contractual prices for the underlying instruments, quoted forward prices for natural gas and crude oil, volatility factors and interest rates,
such as a LIBOR curve for a similar length of time as the derivative contract term. Although the Company utilizes multiple quotes to assess the reasonableness of its values, the Company has not attempted to obtain sufficient corroborating market
evidence to support classifying these derivative contracts as Level 2.

The following table sets forth a reconciliation of changes in the
fair value of financial assets and liabilities classified as level 3 in the fair value hierarchy.



|                                                 |  |   |            |  
|------------------------------------------------ |  | - | ---------- | -
|Net assets as of January 1, 2009                 |  | $ | 1,578,000  |  
|Total realized and unrealized losses:            |  |   |            |  
|Included in earnings (a)                         |  |   | 785,000    |  
|Included in other comprehensive income           |  |   | (3,053,000 | )
|Purchases, sales, issuances and settlements, net |  |   |           |  
|                                                 |  |   |            |  
|Net liabilities as of June 30, 2009              |  | $ | (690,000   | )
|                                                 |  |   |            |  
|                                                 | 

| | (a) | Amounts reported in net income are classified as oil and gas sales for commodity derivative instruments and as a reduction to interest expense for interest rate swap instruments.
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

At June 30, 2009, a $690,000 ($441,000 net of tax) unrealized loss was recorded in Accumulated Other Comprehensive
Income, along with $690,000 in short-term derivative payables. The change in the fair value of derivatives designated as hedges that is effective is initially recorded to Accumulated Other Comprehensive Income. The ineffective portion, if any, of
the change in the fair value of derivatives designated as hedges, and the change in fair value of all other derivatives, is recorded currently in earnings as a component of oil and gas sales and interest expense.

The Company periodically enters into derivative commodity instruments to hedge its exposure to price fluctuations on natural gas and crude oil production.
At June 30, 2009 the Company has five crude oil collar arrangements open. As of June 30, 2009, the oil price collars cover 423 Mbbl of production at a floor price ranging from $60.00 to $65.00, and a ceiling price ranging from $77.40 to
$86.50.

Assuming no change in commodity prices, after June 30, 2009, the Company would expect to reclassify to the Statement of
Operations, over the next 12 months, $441,000 in after-tax loss associated with interest rate swaps. This reclassification represents the net short-term payable associated with open swaps currently not reflected in earnings at June 30, 2009
associated with anticipated interest expense occurring throughout the remainder of 2009.



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|(12) | Earnings Per Share:
|---- | -------------------

Basic earnings per share are computed
by dividing earnings available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per share reflect per share amounts that would have resulted if dilutive potential common stock had
been converted to common stock. The following reconciles amounts reported in the financial statements:



|                                           |  |                                  |            |   |                                  |           |                 |   |       |            |  |                 |           |                 |           |  |   |     
|------------------------------------------ |  | -------------------------------- | ---------- | - | -------------------------------- | --------- | --------------- | - | ----- | ---------- |  | --------------- | --------- | --------------- | --------- |  | - | ----
|                                           |  | Six Months Ended June 30, 2009   |            |   | Six Months Ended June 30, 2008  
|                                           |  | NetIncome/(loss)                 |            |   | Number ofShares                  |           | Per ShareAmount |   |       | Net Income |  | Number ofShares |           | Per ShareAmount
|Net income (loss) per common share         |  | $                                | (7,652,000 | ) |                                  | 3,042,867 |                 | $ | (2.51 | )          |  | $               | 6,750,000 |                 | 3,074,725 |  | $ | 2.20
|Effect of dilutive securities:             |  |                                  |            |   |                                  |           |                 |   |       |            |  |                 |           |                 |           |  |   |     
|Options (a)                                |  |                                  |            |   |                                  |           |                 |   |       |            |  |                 |           |                 | 753,132   |  |   |     
|                                           |  |                                  |            |   |                                  |           |                 |   |       |            |  |                 |           |                 |           |  |   |     
|Diluted net income (loss) per common share |  | $                                | (7,652,000 | ) |                                  | 3,042,867 |                 | $ | (2.51 | )          |  | $               | 6,750,000 |                 | 3,827,857 |  | $ | 1.76
|                                           |  |                                  |            |   |                                  |           |                 |   |       |            |  |                 |           |                 |           |  |   |     
|                                           |  |                                 
|                                           |  | Three Months Ended June 30, 2009 |            |   | Three Months Ended June 30, 2008
|                                           |  | NetIncome/(loss)                 |            |   | Number ofShares                  |           | Per ShareAmount |   |       | Net Income |  | Number ofShares |           | Per ShareAmount
|Net income (loss) per common share         |  | $                                | (4,154,000 | ) |                                  | 3,040,999 |                 | $ | (1.37 | )          |  | $               | 4,019,000 |                 | 3,057,831 |  | $ | 1.31
|Effect of dilutive securities:             |  |                                  |            |   |                                  |           |                 |   |       |            |  |                 |           |                 |           |  |   |     
|Options (a)                                |  |                                  |            |   |                                  |           |                 |   |       |            |  |                 |           |                 | 753,563   |  |   |     
|                                           |  |                                  |            |   |                                  |           |                 |   |       |            |  |                 |           |                 |           |  |   |     
|Diluted net income (loss) per common share |  | $                                | (4,154,000 | ) |                                  | 3,040,999 |                 | $ | (1.37 | )          |  | $               | 4,019,000 |                 | 3,811,394 |  | $ | 1.05
|                                           |  |                                  |            |   |                                  |           |                 |   |       |            |  |                 |           |                 |           |  |   |     
|                                          

| | (a) | The dilutive effect of 767,500 outstanding stock purchase options is not considered for the six and three month periods ended June 30, 2009, due to the losses incurred for such
periods.
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(13) | Effective July 1, 2009, pursuant to a vote of the shareholders amending the Articles of Incorporation, the authorized shares of common stock were reduced from 10,000,000 to
4,000,000, and the class of Preferred Stock of the Company, no shares of which have been issued, was eliminated. In conjunction with this amendment the Board of Directors approved the retirement on July 1, 2009, of 3,854,098 shares of treasury
stock.
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



17



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|Item 6. | EXHIBITS
|------- | --------

The following exhibits are filed as a
part of this Report:



|            |  |                                                                                                                                                                 
|----------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  |                                                                                                                                                                 
|31.1        |  | Certification of Chief Executive Officer pursuant to Rule 13(a)-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith).            
|            | 
|31.2        |  | Certification of Chief Financial Officer pursuant to Rule 13(a)-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as amended (filed herewith).            
|            | 
|32.1        |  | Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith).
|            | 
|32.2        |  | Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith).



18



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SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, Registrant has duly caused this Report to be signed on its behalf by the undersigned thereunto duly authorized.



|                  |  |  |  |                                         
|----------------- |  |  |  | ----------------------------------------
|                  |  |  |  | PrimeEnergy Corporation                 
|                  |  |  |  | (Registrant)                            
|                  |  | 
|September 3, 2009 |  |  |  | /s/ Charles E. Drimal, Jr.              
|(Date)            |  |  |  | Charles E. Drimal, Jr.                  
|                  |  |  |  | President                               
|                  |  |  |  | Principal Executive Officer             
|                  |  | 
|September 3, 2009 |  |  |  | /s/ Beverly A. Cummings                 
|(Date)            |  |  |  | Beverly A. Cummings                     
|                  |  |  |  | Executive Vice President                
|                  |  |  |  | Principal Financial Officer             
|                  |  | 
|September 3, 2009 |  |  |  | /s/ Lynne Pizor                         
|(Date)            |  |  |  | Lynne Pizor                             
|                  |  |  |  | Controller, Principal Accounting Officer



19