|                                                                                                                                                                                    | **United                  States**                                                                                                              |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    | **Securities                  and Exchange Commission**                                                                                         |
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    | **Washington,                  D.C. 20549**                                                                                                     |
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    | **Form                  10 QSB**                                                                                                                |
|                                                                                                                                                                                    |                                                                                                                                            |
| (Mark                  One)                                                                                                                                                             |
|                                                                                                                                                                                    |                                                                                                                                            |
| **R**                                                                                                                                                                                   | **QUARTERLY                  REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE                  ACT OF                  1934** |
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    | For                  the quarterly period ended June 30, 2007                                                                                   |
|                                                                                                                                                                                    |                                                                                                                                            |
| o                                                                                                                                                                                       | **TRANSITION                  REPORT UNDER SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT                  OF                  1934**      |
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    | For                  the transition period from _____ to _____                                                                                  |
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    | Commission                  file number 0-51272                                                                                                 |
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    | **ATLAS                  AMERICA SERIES 25-2004 (A) L.P.**                                                                                      |
|                                                                                                                                                                                    | (Name                  of small business issuer in its charter)                                                                                 |
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    |                                                                                                                                            |
|                                                                                                                                                                                    |                                                                                                                                            |
| **Delaware**                                                                                                                                                                            | **55-0856393**                                                                                                                                  |
| (State                  or other jurisdiction ofincorporation                  or organization)                                                                                         | (I.R.S.                  EmployerIdentification                  No.)                                                                           |
|                                                                                                                                                                                    |                                                                                                                                            |
| Westpointe                  Corporate Center One                                                                                                                                        |                                                                                                                                            |
| 1550                  Coraopolis Heights Road, 2nd Floor                                                                                                                                |                                                                                                                                            |
| Moon                  Township, PA                                                                                                                                                      | 15108                                                                                                                                           |
| (Address                  of principal executive offices)                                                                                                                               | (zip                  code)                                                                                                                     |
|                                                                                                                                                                                    |                                                                                                                                            |
| Issuer’s                  telephone number, including area code: **(412)                  262-2830**                                                                              |
|                                                                                                                                                                                    |
| Indicate                  by check mark whether the registrant (1) filed all reports required                  to be                  filed by Section 13 or 15 (d) of the Exchange Act |
| during                  the past 12 months (or for such shorter period that the registrant                  was                  required to file such reports),                        |
| and                  (2) has been subject to such filing requirements for the past 90                  days.                  Yes** ****R**                  No o                  |
|                                                                                                                                                                                    |
| Indicate                  by check mark whether the registrant is a shell company (as defined                  in                  Rule 12b-2 of the Exchange                           |
| Act).Yes                  o                  No **R**                                                                                                                                   |
|                                                                                                                                                                                    |
| Transitional                  Small Business Disclosure Format (check one): Yes o                  No **R**                                                                             |

**ATLAS        AMERICA SERIES 25-2004 (A) L.P.**

**(A        Delaware Limited Partnership)**

**INDEX        TO QUARTERLY REPORT**

**ON        FORM 10-QSB**

| **PART                  I.**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | **FINANCIAL                  INFORMATION**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | **PAGE** |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
| Item                  1:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | Financial                  Statements                                                                                                                                                        |     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | Balance                  Sheets as of June 30, 2007 and December 31, 2006                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | 3        |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | Statements                  of Net Earnings for the Three Months and Six Months ended June                  30, 2007                  and 2006                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | 4        |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | Statement                  of Partners’ Capital Accounts for the Six Months ended June 30,                  2007                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | 5        |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | Statements                  of Cash Flows for the Six Months ended June 30, 2007 and                  2006                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | 6        |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | Notes                  to Financial                  Statements                                                                                                                              | 7-12     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
| Item                  2:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | Management’s                  Discussion and Analysis of Financial Condition or Plan of                  Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | 13-17    |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
| Item                  3:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | Controls                  and                  Procedures                                                                                                                                    | 17       |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
| **PART                  II.**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |   | **OTHER                  INFORMATION**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
| Item                  6:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | Exhibits                                                                                                                                                                                     | 18       |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
| **SIGNATURES                                                                                                                                                  **     | 19     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     |
| **CERTIFICATIONS                                                                                                                                                  ** | 20-23  |

**PART        I**

**ITEM        1.  FINANCIAL STATEMENTS**

**ATLAS        AMERICA SERIES 25-2004(A) L.P.**

**BALANCE        SHEETS**

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | **June                  30,** |       |   | **December                  31,** |   |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------------------|------------|--------|-----------------------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | **2007**                      |       |   | **2006**                          |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | **(Unaudited)**               |       |   | **(Audited)**                     |   |
| **ASSETS**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                          |       |   |                              |   |
| Current                  Assets:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                          |       |   |                              |   |
| Cash                  and cash                  equivalents                                                                                                                    |   | $                             | 489,700    |   |                              | $      | 500 |   |
| Accounts                  receivable-affiliate                                                                                                                                 |   |                          | 1,502,500  |   |                              |   | 2,519,500 |   |
| Short-term                  hedge receivable due from                  affiliate                                                                                               |   |                          | 632,300    |   |                              |   | 1,537,300 |   |
| Total                  current                  assets                                                                                                                                                                 |   |                          | 2,624,500  |   |                              |   | 4,057,300 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                          |       |   |                              |   |   |   |
| Oil                  and gas properties,                  net                                                                                                                  |   |                          | 23,743,300 |   |                              |   | 25,497,600 |   |
| Long-term                  hedge receivable due from                  affiliate                                                                                                |   |                          | 333,300    |   |                              |   | 1,327,100 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | $                             | 26,701,100 |   |                              | $      | 30,882,000 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                          |       |   |                              |   |   |   |
| **LIABILITIES                  AND PARTNERS’ CAPITAL**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |   |                          |       |   |                              |   |   |   |
| Current                  liabilities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |                          |       |   |                              |   |   |   |
| Accrued                  liabilities                                                                                                                                           |   | $                             | 9,300      |   |                              | $      | 18,000 |   |
| Short-term                  hedge liability due to                  affiliate                                                                                                  |   |                          | 63,500     |   |                              |   | 9,600 |   |
| Total                  current                  liabilities                                                                                                                                                            |   |                          | 72,800     |   |                              |   | 27,600 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                          |       |   |                              |   |   |   |
| Asset                  retirement                  obligation                                                                                                                  |   |                          | 1,154,500  |   |                              |   | 1,120,900 |   |
| Long-term                  hedge liability due to                  affiliate                                                                                                   |   |                          | 742,800    |   |                              |   | 213,500 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                          |       |   |                              |   |   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                          |       |   |                              |   |   |   |
| Partners’                  capital:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |   |                          |       |   |                              |   |   |   |
| Managing                  general                  partner                                                                                                                     |   |                          | 6,090,800  |   |                              |   | 6,554,600 |   |
| Limited                  partners (1,106.76                  units)                                                                                                            |   |                          | 18,483,100 |   |                              |   | 20,327,400 |   |
| Accumulated                  other comprehensive                  income                                                                                                       |   |                          | 157,100    |   |                              |   | 2,638,000 |   |
| Total                  partners'                  capital                                                                                                                                                                   |   |                          | 24,731,000 |   |                              |   | 29,520,000 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | $                             | 26,701,100 |   |                              | $      | 30,882,000 |   |

**ATLAS        AMERICA SERIES 25-2004(A) L.P.**

**STATEMENTS        OF NET EARNINGS**

**(Unaudited)**

|                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | **Three                  Months Ended** |      |   | **Six                  Months Ended** |   |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------|-----------|--------|---------------------------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | **June                  30,**           |      |   | **June                  30,**         |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | **2007**                                |      |   | **2006**                              |   |   | **2007** |   |   | **2006** |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |                                    |      |   |                                  |   |   |   |   |   |   |   |
| **REVENUES:**                                                                                                                                                                                                                                                                                                                                                                                                                                          |   |                                    |      |   |                                  |   |   |   |   |   |   |   |
| Natural                  gas and                  oil                                                                       |   | $                                       | 1,724,100 |   |                                  | $      | 2,542,800 |   |   | $ | 3,987,600 |   |   | $ | 6,012,800 |   |
| Total                  revenues                                                                                                                                     |   |                                    | 1,724,100 |   |                                  |   | 2,542,800 |   |   |   | 3,987,600 |   |   |   | 6,012,800 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |                                    |      |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| **COSTS                  AND EXPENSES:**                                                                                                                                                                                                                                                                                                                                                                                                               |   |                                    |      |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| Production                                                                                                                  |   |                                    | 398,300   |   |                                  |   | 479,800 |   |   |   | 814,200 |   |   |   | 886,000 |   |
| Depletion                                                                                                                   |   |                                    | 757,600   |   |                                  |   | 830,200 |   |   |   | 1,765,000 |   |   |   | 1,856,100 |   |
| Accretion                  of asset retirement obligation                                                                                                                                                                                                                                                                                                                                                                                              |   |                                    | 16,800    |   |                                  |   | 10,600 |   |   |   | 33,600 |   |   |   | 21,100 |   |
| General                  and                  administrative                                                                |   |                                    | 37,600    |   |                                  |   | 41,400 |   |   |   | 77,000 |   |   |   | 77,300 |   |
| Total                  expenses                                                                                                                                     |   |                                    | 1,210,300 |   |                                  |   | 1,362,000 |   |   |   | 2,689,800 |   |   |   | 2,840,500 |   |
| **Net                  earnings                                                               **                            |   | $                                       | 513,800   |   |                                  | $      | 1,180,800 |   |   | $ | 1,297,800 |   |   | $ | 3,172,300 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |                                    |      |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| **Allocation                  of net earnings:**                                                                                                                                                                                                                                                                                                                                                                                                       |   |                                    |      |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| Managing                  general                  partner                                                                  |   | $                                       | 324,200   |   |                                  | $      | 577,600 |   |   | $ | 791,300 |   |   | $ | 1,477,000 |   |
| Limited                  partners                                                                                           |   | $                                       | 189,600   |   |                                  | $      | 603,200 |   |   | $ | 506,500 |   |   | $ | 1,695,300 |   |
| Net                  earnings per limited partnership unit                                                                                                                                                                                                                                                                                                                                                                                             |   | $                                       | 172       |   |                                  | $      | 545 |   |   | $ | 458 |   |   | $ | 1,532 |   |

**ATLAS        AMERICA SERIES 25-2004(A) L.P.**

**STATEMENT        OF PARTNERS’ CAPITAL ACCOUNTS**

**FOR        THE SIX MONTHS ENDED June 30, 2007**

**(Unaudited)**

|                                                                                                                                                                                                                                                                                                                                                                                                             |   |         |       |   |         |   |       | **Accumulated**                    |   |   |       |   |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------------|------------|--------|--------------|--------|------------|------------------------------------|--------|--------|------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                             |   | **Managing** |       |   |         |   |       | **Other**                          |   |   |       |   |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   | **General**  |       |   | **Limited**  |   |       | **Comprehensive**                  |   |   |       |   |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   | **Partner**  |       |   | **Partners** |   |       | **Income                  (Loss)** |   |   | **Total**  |   |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   |         |       |   |         |   |       |                               |   |   |       |   |
| **Balance                  at January 1, 2007**                                                                                                                                                                                                                                                                                                                                                                  |   | $            | 6,554,600  |   |         | $      | 20,327,400 |                               |   | $      | 2,638,000  |   |   | $ | 29,520,000 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   |         |       |   |         |   |       |                               |   |   |       |   |   |   |   |   |
| Participation                  in revenues and expenses:                                                                                                                                                                                                                                                                                                                                                         |   |         |       |   |         |   |       |                               |   |   |       |   |   |   |   |   |
| Net                  production                  revenues                                                                                    |   |         | 1,110,700  |   |         |   | 2,062,700  |                               |   |   | —    |   |   |   | 3,173,400 |   |
| Depletion                                                                                                                                    |   |         | (280,700   | )      |         |   | (1,484,300 | )                                  |   |   | —    |   |   |   | (1,765,000 | ) |
| Accretion                  of asset retirement obligation                                                                                                                                                                                                                                                                                                                                                        |   |         | (11,800    | )      |         |   | (21,800    | )                                  |   |   | —    |   |   |   | (33,600 | ) |
| General                  and                  administrative                                                                                 |   |         | (26,900    | )      |         |   | (50,100    | )                                  |   |   | —    |   |   |   | (77,000 | ) |
| Net                  earnings                                                                                                                                              |   |         | 791,300    |   |         |   | 506,500    |                               |   |   | —    |   |   |   | 1,297,800 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   |         |       |   |         |   |       |                               |   |   |       |   |   |   |   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   |         |       |   |         |   |       |                               |   |   |       |   |   |   |   |   |
| Other                  comprehensive                  loss                                                          |   |         | —    |   |         |   | —    |                               |   |   | (2,480,900 | )      |   |   | (2,480,900 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   |         |       |   |         |   |       |                               |   |   |       |   |   |   |   |   |
| MGP                  adjusted asset contribution                                                                                                                                                                                                                                                                                                                                                                 |   |         | 10,700     |   |         |   | —    |                               |   |   | —    |   |   |   | 10,700 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   |         |       |   |         |   |       |                               |   |   |       |   |   |   |   |   |
| Distributions                  to partners                                                                                                                                                                                                                                                                                                                                                                       |   |         | (1,265,800 | )      |         |   | (2,350,800 | )                                  |   |   | —    |   |   |   | (3,616,600 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   |         |       |   |         |   |       |                               |   |   |       |   |   |   |   |   |
| **Balance                  at June 30, 2007**                                                                                                                                                                                                                                                                                                                                                                    |   | $            | 6,090,800  |   |         | $      | 18,483,100 |                               |   | $      | 157,100    |   |   | $ | 24,731,000 |   |

**ATLAS        AMERICA SERIES 25-2004(A) L.P.**

**STATEMENTS        OF CASH FLOWS**

**(Unaudited)**

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | **Six                  Months Ended** |       |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|---------------------------------------|------------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | **June                  30,**         |       |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | **2007**                              |       |   | **2006** |   |
| **Cash                  flows from operating activities:**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                  |       |   |   |   |
| Net                  earnings                                                                                                                                                          |   | $                                     | 1,297,800  |   |   | $ | 3,172,300 |   |
| Adjustments                  to reconcile net earnings to net cash provided by operating                  activities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |                                  |       |   |   |   |   |   |
| Depletion                                                                                                                                                                                                       |   |                                  | 1,765,000  |   |   |   | 1,856,100 |   |
| Non-cash                  loss on derivative                  value                                                                                                                                             |   |                                  | 1,100      |   |   |   | — |   |
| Accretion                  of asset retirement                  obligation                                                                                                                                      |   |                                  | 33,600     |   |   |   | 21,100 |   |
| Decrease                  in accounts receivable –                  affiliate                                                                                                                             |   |                                  | 1,017,000  |   |   |   | 2,508,400 |   |
| Decrease                  in accrued                  liabilities                                                                                                                                               |   |                                  | (8,700     | ) |   |   | (11,500 | ) |
| Net                  cash provided by operating                  activities                                                                                                            |   |                                  | 4,105,800  |   |   |   | 7,546,400 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |                                  |       |   |   |   |   |   |
| **Cash                  flows from investing activities:**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                  |       |   |   |   |   |   |
| Purchase                  of tangible                  equipment                                                                                                                       |   |                                  | —    |   |   |   | (4,600 | ) |
| Proceeds                  from sale of tangible                  equipment                                                                                                             |   |                                  | —    |   |   |   | 3,100 |   |
| Net                  cash used in investing                  activities                                                                                                                |   |                                  | —    |   |   |   | (1,500 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |                                  |       |   |   |   |   |   |
| **Cash                  flows from financing activities:**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                  |       |   |   |   |   |   |
| Distributions                  to                  partners                                                                                                                            |   |                                  | (3,616,600 | ) |   |   | (6,685,000 | ) |
| Net                  cash used in financing                  activities                                                                                                                |   |                                  | (3,616,600 | ) |   |   | (6,685,000 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |                                  |       |   |   |   |   |   |
| Net                  increase in cash and cash                  equivalents                                                                                                            |   |                                  | 489,200    |   |   |   | 859,900 |   |
| Cash                  and cash equivalents at beginning of                  period                                                                                                     |   |                                  | 500        |   |   |   | 2,300 |   |
| Cash                  and cash equivalents at end of                  period                                                                                                           |   | $                                     | 489,700    |   |   | $ | 862,200 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |                                  |       |   |   |   |   |   |
| **Supplemental                  Schedule of Non-cash Investing and Financing                  Activities:**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |                                  |       |   |   |   |   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |                                  |       |   |   |   |   |   |
| Assets                  contributed by managing general partner:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                  |       |   |   |   |   |   |
| Tangible                  equipment included in oil & gas                  properties                                                                                                                  |   | $                                     | 300        |   |   | $ | — |   |
| Intangible                  drilling costs included in oil & gas properties                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |   |                                  | 10,400     |   |   |   | — |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | $                                     | 10,700     |   |   | $ | — |   |

**ATLAS        AMERICA SERIES 25-2004(A) L.P.**

**NOTES        TO FINANCIAL STATEMENTS**

**June        30, 2007**

**(Unaudited)**

**NOTE        1 - DESCRIPTION        OF BUSINESS**

**NOTE        2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES**

**Use        of Estimates**

**Receivables**

**Revenue        Recognition**

**ATLAS        AMERICA SERIES 25-2004(A) L.P.**

**NOTES        TO FINANCIAL STATEMENTS (Continued)**

**June        30, 2007**

**(Unaudited)**

**NOTE        2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)**

**Asset        Retirement Obligation**

*Accounting for Asset Retirement        Obligations*
*, Accounting for Conditional Asset Retirement        Obligations.*

|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | **Three                  Months Ended** |      |   | **Six                  Months Ended** |   |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------|-----------|--------|---------------------------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | **June                  30,**           |      |   | **June                  30,**         |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | **2007**                                |      |   | **2006**                              |   |   | **2007** |   |   | **2006** |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                    |      |   |                                  |   |   |   |   |   |   |   |
| Asset                  retirement obligation at beginning of period                                                                                                                                                                                                                                                                                                                                                                                  |   | $                                       | 1,137,700 |   |                                  | $      | 1,157,500 |   |   | $ | 1,120,900 |   |   | $ | 1,147,000 |   |
| Accretion                  expense                                                                    |   |                                    | 16,800    |   |                                  |   | 10,600 |   |   |   | 33,600 |   |   |   | 21,100 |   |
| Asset                  retirement obligation at end of period                                                                                                                                                                                                                                                                                                                                                                                        |   | $                                       | 1,154,500 |   |                                  | $      | 1,168,100 |   |   | $ | 1,154,500 |   |   | $ | 1,168,100 |   |

**Property        and Equipment**

| Oil                  and gas properties consist of the following at the dates                  indicated:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | **June                  30,** |        |   | **December                  31,** |   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------------------|-------------|--------|-----------------------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |   | **2007**                      |        |   | **2006**                          |   |
| Mineral                  interest in properties:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |   |                          |        |   |                              |   |
| Proved                  properties                                                                                                                                                  |   | $                             | 738,200     |   |                              | $      | 738,200 |   |
| Wells                  and related                  equipment                                                                                                                       |   |                          | 35,037,000  |   |                              |   | 35,026,300 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |   |                          | 35,775,200  |   |                              |   | 35,764,500 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |   |                          |        |   |                              |   |   |   |
| Accumulated                  depletion of oil and gas                  properties                                                                                                   |   |                          | (12,031,900 | )      |                              |   | (10,266,900 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |   | $                             | 23,743,300  |   |                              | $      | 25,497,600 |   |

**Recently        Issued Financial Accounting Standards**

*Offsetting of Amounts Related to Certain Contracts,*

*The Fair Value Option for Financial        Assets and Financial Liabilities.  *

**ATLAS        AMERICA SERIES 25-2004(A) L.P.**

**NOTES        TO FINANCIAL STATEMENTS (Continued)**

**June        30, 2007**

**(Unaudited)**

**NOTE        2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)**

*Fair Value        Measurement.  *

**NOTE        3 -        TRANSACTIONS WITH ATLAS RESOURCES, LLC AND ITS AFFILIATES**

| ·   | Administrative                  costs which are included in general and administrative expenses                  in the                  Partnership’s Statements of Net Earnings are payable at $75 per well per                  month.  Administrative costs incurred for the three months and                  six months ended June 30, 2007 were $28,800 and $57,500,                  respectively.  Administrative costs incurred for the three                  months and six months ended June 30, 2006 were $28,300 and $56,000,                  respectively. |
|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Monthly                  well supervision fees which are included in production expenses                  in the                  Partnership’s Statements of Net Earnings are currently payable at $301 per                  well per month for operating and maintaining the wells.  Well                  supervision fees incurred for the three months and six months ended                  June                  30, 2007 were $114,700 and $229,400, respectively. Well supervision                  fees                  incurred for the three months and six months ended June 30, 2006                  were                  $107,000 and $208,600,                  respectively. |
|--------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Transportation                  fees which are included in production expenses in the Partnership’s                  Statements of Net Earnings are payable at rates ranging from $.29-$.35                  per                  one thousand cubic feet ("Mcf") to 13% of the natural gas sales                  price.  Transportation fees incurred for the three months and                  six months ended June 30, 2007 were $223,700 and $475,600, respectively.                  Transportation fees incurred for the three months and six months                  ended                  June 30, 2006 were $306,600 and $550,700,                  respectively. |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Additional                  asset contributions from the MGP which are included on the Partnership's                  Statements of Cash Flows as a non-cash investing activity for the                  six                  months ended June 30, 2007, were                  $10,700. |
|--------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

**Subordination        by Managing General Partner**

**ATLAS        AMERICA SERIES 25-2004(A) L.P.**

**NOTES        TO FINANCIAL STATEMENTS (Continued)**

**June        30, 2007**

**(Unaudited)**

**NOTE        4 – COMPREHENSIVE INCOME**

|                                                                                                                                                                                                                                                                                                                                                                                                                                  |   | **Three                  Months Ended** |     |   | **Six                  Months Ended** |   |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------|----------|--------|---------------------------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                  |   | **June                  30,**           |     |   | **June                  30,**         |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                  |   | **2007**                                |     |   | **2006**                              |   |   | **2007** |   |   | **2006** |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                  |   |                                    |     |   |                                  |   |   |   |   |   |   |   |
| Net                  earnings                                                                                             |   | $                                       | 513,800  |   |                                  | $      | 1,180,800 |   |   | $ | 1,297,800 |   |   | $ | 3,172,300 |   |
| Other                  comprehensive (loss) income:                                                                                                                                                                                                                                                                                                                                                                                   |   |                                    |     |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| Unrealized                  holding gain (loss) on hedging contracts                                                                                                                                                                                                                                                                                                                                                                  |   |                                    | 341,200  |   |                                  |   | 835,100 |   |   |   | (1,993,000 | ) |   |   | 1,537,000 |   |
| Less:                  reclassification adjustment for gains realized in net                  earnings                                                                                                                                                                                                                                                                                                                                |   |                                    | (214,400 | )      |                                  |   | (243,300 | ) |   |   | (487,900 | ) |   |   | (441,800 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                                                  |   |                                    | 126,800  |   |                                  |   | 591,800 |   |   |   | (2,480,900 | ) |   |   | 1,095,200 |   |
| Comprehensive                  income                  (loss)                                                             |   | $                                       | 640,600  |   |                                  | $      | 1,772,600 |   |   | $ | (1,183,100 | ) |   | $ | 4,267,500 |   |

**NOTE        5 – DERIVATIVE INSTRUMENTS**

**ATLAS        AMERICA SERIES 25-2004(A) L.P.**

**NOTES        TO FINANCIAL STATEMENTS (Continued)**

**June        30, 2007**

**(Unaudited)**

**NOTE        5 – DERIVATIVE INSTRUMENTS (Continued)**

| **Fixed                  Price Swaps** |                               |   |                             |    |   |                             |                             |   |                            |       |
|----------------------------------------|------------------------------------|--------|----------------------------------|---------|--------|----------------------------------|----------------------------------|--------|---------------------------------|------------|
|                                   |                               |   |                             |    |   |                             |                             |   | **Fair                  Value** |       |
|                                   | **Twelve                  Month**  |   | **Volumes**                      |    |   | **Average**                      |                             |   | **Asset**                       |       |
|                                   | **Period                  Ending** |   | **(per                  MMBTU)** |    |   | **Fixed                  Price** |                             |   | **(Liability)**                 |       |
|                                   | **June                  30,**      |   | ** **                       | **(1)** |   |                             | **(per                  MMBTU)** |   |                            | ** ** | **(2)** |   |
|                                   |                               |   |                             |    |   |                             |                             |   |                            |       |   |   |
|                                   | 2008                               |   |                             | 676,100 |   |                             | $                                | 8.682  |                            |       | $ | 557,000 |   |
|                                   | 2009                               |   |                             | 661,100 |   |                             | $                                | 8.533  |                            |       |   | (4,000 | ) |
|                                   | 2010                               |   |                             | 512,000 |   |                             | $                                | 8.053  |                            |       |   | (157,600 | ) |
|                                   | 2011                               |   |                             | 285,800 |   |                             | $                                | 7.524  |                            |       |   | (156,500 | ) |
|                                   | 2012                               |   |                             | 99,400  |   |                             | $                                | 7.365  |                            |       |   | (39,500 | ) |
|                                   |                               |   |                             |    |   |                             |                             |   |                            |       | $ | 199,400 |   |

**ATLAS        AMERICA SERIES 25-2004(A) L.P.**

**NOTES        TO FINANCIAL STATEMENTS (Continued)**

**June        30, 2007**

**(Unaudited)**

**NOTE        5 – DERIVATIVE INSTRUMENTS (Continued)**

| **Costless                  Collars** |                               |                            |   |                             |    |   |                                 |                             |   |                            |       |
|---------------------------------------|------------------------------------|---------------------------------|--------|----------------------------------|---------|--------|--------------------------------------|----------------------------------|--------|---------------------------------|------------|
|                                  |                               |                            |   |                             |    |   |                                 |                             |   | **Fair                  Value** |       |
| **Company**                           | **Twelve                  Month**  |                            |   | **Volumes**                      |    |   | **Average**                          |                             |   | **Asset**                       |       |
|                                  | **Period                  Ending** | **Option**                      |   | **(per                  MMBTU)** |    |   | **Floor                  & Cap** |                             |   | **(Liability)**                 |       |
|                                  | **June                  30,**      | **Type**                        |   | ** **                       | **(1)** |   |                                 | **(per                  MMBTU)** |   |                            | ** ** | **(2)** |   |
|                                  |                               |                            |   |                             |    |   |                                 |                             |   |                            |       |   |   |
|                                  | 2008                               | Puts                  purchased |   |                             | 37,300  |   |                                 | $                                | 7.500  |                            |       | $ | 15,900 |   |
|                                  | 2008                               | Calls                  sold     |   |                             | 37,300  |   |                                 | $                                | 8.600  |                            |       |   | — |   |
|                                  | 2008                               | Puts                  purchased |   |                             | 32,300  |   |                                 | $                                | 7.500  |                            |       |   | — |   |
|                                  | 2008                               | Calls                  sold     |   |                             | 32,300  |   |                                 | $                                | 9.400  |                            |       |   | (4,100 | ) |
|                                  | 2009                               | Puts                  purchased |   |                             | 32,300  |   |                                 | $                                | 7.500  |                            |       |   | — |   |
|                                  | 2009                               | Calls                  sold     |   |                             | 32,300  |   |                                 | $                                | 9.400  |                            |       |   | (4,600 | ) |
|                                  | 2010                               | Puts                  purchased |   |                             | 59,700  |   |                                 | $                                | 7.750  |                            |       |   | — |   |
|                                  | 2010                               | Calls                  sold     |   |                             | 59,700  |   |                                 | $                                | 8.750  |                            |       |   | (15,300 | ) |
|                                  | 2011                               | Puts                  purchased |   |                             | 59,700  |   |                                 | $                                | 7.750  |                            |       |   | 100 |   |
|                                  | 2011                               | Calls                  sold     |   |                             | 59,700  |   |                                 | $                                | 8.750  |                            |       |   | — |   |
|                                  | 2011                               | Puts                  purchased |   |                             | 149,100 |   |                                 | $                                | 7.500  |                            |       |   | — |   |
|                                  | 2011                               | Calls                  sold     |   |                             | 149,100 |   |                                 | $                                | 8.450  |                            |       |   | (35,400 | ) |
|                                  | 2012                               | Puts                  purchased |   |                             | 149,100 |   |                                 | $                                | 7.500  |                            |       |   | 3,300 |   |
|                                  | 2012                               | Calls                  sold     |   |                             | 149,100 |   |                                 | $                                | 8.450  |                            |       |   | — |   |
|                                  |                               |                            |   |                             |    |   |                                 |                             |   |                            |       | $ | (40,100 | ) |
|                                  |                               |                            |   |                             |    |   |                                 |                             |   |                            |       |   |   |   |
|                                  |                               |                            |   |                             |    |   |                                 | Net                  Asset       |   |                            | $          | 159,300 |   |

| (1)   | MMBTU                  represents million British Thermal                  Units. |
|-----------------|-----------------------------------------------------------------------------------|

| (2)   | Fair                  value based on forward NYMEX natural gas                  prices. |
|-----------------|-----------------------------------------------------------------------------------------|

|                                                                                                                                                                                                                                                                                                            |   | **June                  30, 2007** |     |   | **December                  31, 2006** |   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|------------------------------------|----------|--------|----------------------------------------|--------|
|                                                                                                                                                                                                                                                                                                            |   | **Book                  Value**    |     |   | **Fair                  Value**        |   |   | **Book                  Value** |   |   | **Fair                  Value** |   |
| Assets                                                                                                                                                                                                                                                                                                          |   |                               |     |   |                                   |   |   |   |   |   |   |   |
| Derivative                  instruments                                             |   | $                                  | 965,600  |   |                                   | $      | 965,600 |   |   | $ | 2,864,400 |   |   | $ | 2,864,400 |   |
|                                                                                                                                                                                                                                                                                                            |   | $                                  | 965,600  |   |                                   | $      | 965,600 |   |   | $ | 2,864,400 |   |   | $ | 2,864,400 |   |
| Liabilities                                                                                                                                                                                                                                                                                                     |   |                               |     |   |                                   |   |   |   |   |   |   |   |   |   |   |   |
| Derivative                  instruments                                             |   | $                                  | (806,300 | )      |                                   | $      | (806,300 | ) |   | $ | (223,100 | ) |   | $ | (223,100 | ) |
|                                                                                                                                                                                                                                                                                                            |   | $                                  | 159,300  |   |                                   | $      | 159,300 |   |   | $ | 2,641,300 |   |   | $ | 2,641,300 |   |

**ITEM        2.   MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION        OR PLANOF OPERATIONS (UNAUDITED)**

**Forward-Looking        Statements**

*The        matters discussed within this report include forward-looking statements.        These        statements may be identified by the use of forward-looking terminology such        as“anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,”“may,” “might,” “plan,” “potential,” “predict,” “should,” or “will,” or the        negative thereof or other variations thereon or comparable terminology. In        particular, statements about our expectations, beliefs, plans, objectives,        assumptions or future events or performance contained in this report are        forward-looking statements. We have based these forward-looking statements        on        our current expectations, assumptions, estimates and projections. While we        believe these expectations, assumptions, estimates and projections are        reasonable, such forward-looking statements are only predictions and involve        known and unknown risks and uncertainties, many of which are beyond our control.        These and other important factors may cause our actual results, performance        or        achievements to differ materially from any future results, performance or        achievements expressed or implied by these forward-looking        statements.*

**General**

**Results        of Operations**

|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | **Three                  Months Ended** |   |   | **Six                  Months Ended** |   |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------|--------|--------|---------------------------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | **June                  30,**           |   |   | **June                  30,**         |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | **2007**                                |   |   | **2006**                              |   |   | **2007** |   |   | **2006** |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                    |   |   |                                  |   |   |   |   |   |   |   |
| Production                  revenues (in thousands):                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                    |   |   |                                  |   |   |   |   |   |   |   |
| Gas                                                                                                                                      |   | $                                       | 1,658  |   |                                  | $      | 2,523 |   |   | $ | 3,870 |   |   | $ | 5,959 |   |
| Oil                                                                                                                                      |   | $                                       | 66     |   |                                  | $      | 20 |   |   | $ | 118 |   |   | $ | 54 |   |
| Total                                                                                                                                    |   | $                                       | 1,724  |   |                                  | $      | 2,543 |   |   | $ | 3,988 |   |   | $ | 6,013 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                    |   |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| Production                  volumes:                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                    |   |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| Gas                  (mcf/day)                  (2)                                                                                      |   |                                    | 2,014  |   |                                  |   | 3,113 |   |   |   | 2,382 |   |   |   | 3,371 |   |
| Oil                  (bbls/day)                  (2)                                                                                     |   |                                    | 12     |   |                                  |   | 3 |   |   |   | 11 |   |   |   | 5 |   |
| Total                  (mcfe/day)                  (2)                                                                                   |   |                                    | 2,086  |   |                                  |   | 3,131 |   |   |   | 2,448 |   |   |   | 3,401 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                    |   |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| Average                  sales prices:                                                                                                                                                                                                                                                                                                                                                                                                               |   |                                    |   |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| Gas                  (per mcf) (1)                  (2)                                                                                  |   | $                                       | 9.05   |   |                                  | $      | 8.91 |   |   | $ | 8.98 |   |   | $ | 9.77 |   |
| Oil                  (per bbl)                  (2)                                                                                      |   | $                                       | 60.10  |   |                                  | $      | 68.73 |   |   | $ | 58.08 |   |   | $ | 63.96 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                    |   |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| Average                  production costs:                                                                                                                                                                                                                                                                                                                                                                                                           |   |                                    |   |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| As                  a percent of                  sales                                                                                  |   |                                    | 23     | %      |                                  |   | 19 | % |   |   | 20 | % |   |   | 15 | % |
| Per                  mcfe                  (2)                                                                                           |   | $                                       | 2.10   |   |                                  | $      | 1.68 |   |   | $ | 1.84 |   |   | $ | 1.44 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                    |   |   |                                  |   |   |   |   |   |   |   |   |   |   |   |
| Depletion                  per                  mcfe                                                                 |   | $                                       | 3.99   |   |                                  | $      | 2.91 |   |   | $ | 3.98 |   |   | $ | 3.02 |   |

| (1)   | The                  average sales price per mcf before the effects of hedging was $7.88                  and                  $8.05 for the three months ended June 30, 2007 and 2006, respectively;                  and                  $7.84 and $8.93 for the six months ended June 30, 2007 and 2006,                  respectively. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (2)   | “Mcf”                  means thousand cubic feet, “mcfe” means thousand cubic feet equivalent and                  “bbls” means barrels.  Bbls are converted to mcfe using the                  ratio of six mcfs to one bbl. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

**Natural        Gas Revenues**

**Oil        Revenues**

**Expenses.  **

**Liquidity        and Capital Resources**

**Critical        Accounting Policies**

**Subordination        by Managing General Partner**

**Recently        Issued Financial Accounting Standards**

*Offsetting        of Amounts Related to Certain Contracts*

*The Fair Value Option for Financial Assets and Financial        Liabilities*

*Fair Value*
*Measurement*

**ITEM        3.  CONTROLS AND PROCEDURES**

**Evaluation        of Disclosure Controls and Procedures**

**PART        II.                      OTHER        INFORMATION**

**ITEM        6.  Exhibits**

**EXHIBIT        INDEX**

| **Exhibit                  No.** |   | **Description**                                                                                                                                                           |
|----------------------------------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                             |   |                                                                                                                                                                      |
| 31.1                             |   | Certification                  Pursuant to Rule 13a-14/15(d)-14                                                                                                           |
| 31.2                             |   | Certification                  Pursuant to Rule 13a-14/15(d)-14                                                                                                           |
| 32.1                             |   | Certification                  Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section                  906 of                  the Sarbanes-Oxley Act of 2002 |
| 32.2                             |   | Certification                  Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section                  906 of                  the Sarbanes-Oxley Act of 2002 |

**SIGNATURES**

| Pursuant                  to the requirements of the Securities of the Exchange Act of 1934,                  the                  registrant has duly caused this report to be signed on its behalf                  by the                  undersigned, thereunto duly authorized. |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                                                                                                                                                                                  |
| Atlas                  America Series 25-2004 (A) L.P.                                                                                                                                                                                                                                |
|                                                                                                                                                                                                                                                                                  |   |   |
|                                                                                                                                                                                                                                                                                  |   |   |
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|                                                                                                                                                                                                                                                                                  |   | Atlas                  Resources, LLC, Managing General Partner |
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| Date:  August                  13, 2007                                                                                                                                                                                                                                     |   | By:/s/                  Freddie M. Kotek |
|                                                                                                                                                                                                                                                                                  |   | Freddie                  M. Kotek, Chairman of the Board of Directors, Chief Executive                  Officer |
|                                                                                                                                                                                                                                                                                  |   | and                  President |
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| In                  accordance with the Exchange Act, this report has been signed by                  the                  following persons on behalf of the registrant and in the capacities                  and on                  the dates indicated.                          |
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| Date:  August                  13, 2007                                                                                                                                                                                                                                     |   | By:/s/                  Freddie M. Kotek |
|                                                                                                                                                                                                                                                                                  |   | Freddie                  M. Kotek, Chairman of the Board of Directors, Chief                  Executive |
|                                                                                                                                                                                                                                                                                  |   | Officer                  and President |
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| Date:  August                  13, 2007                                                                                                                                                                                                                                     |   | By:/s/                  Matthew A. Jones |
|                                                                                                                                                                                                                                                                                  |   | Matthew                  A. Jones, Chief Financial Officer |
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| Date:  August                  13, 2007                                                                                                                                                                                                                                     |   | By:/s/                  Nancy J. McGurk |
|                                                                                                                                                                                                                                                                                  |   | Nancy                  J. McGurk, Vice President, Chief Accounting Officer |
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