|                                                                                                                                                 | United      States                                                                                  |
|------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------|
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 | Securities      and Exchange Commission                                                             |
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 | Washington,      D.C. 20549                                                                         |
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 | Form      10-Q                                                                                      |
|                                                                                                                                                 |                                                                                                |
| (Mark      One)                                                                                                                                      |
|                                                                                                                                                 |                                                                                                |
| R                                                                                                                                                    | QUARTERLY      REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF      1934  |
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 | For      the quarterly period ended March 31, 2008                                                  |
|                                                                                                                                                 |                                                                                                |
| o                                                                                                                                                    | TRANSITION      REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF      1934 |
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 | For      the transition period from _____ to _____                                                  |
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 | Commission      file number 333-144070-03                                                           |
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 | ATLAS      RESOURCES PUBLIC 17-2007 (A) L.P.                                                        |
|                                                                                                                                                 | (Name      of small business issuer in its charter)                                                 |
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 |                                                                                                |
|                                                                                                                                                 |                                                                                                |
| Delaware                                                                                                                                             | 20-8978061                                                                                          |
| (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 SecuritiesExchange |
| Act      of 1934 during the preceding 12 months (or for such shorter period that      the registrant was required to file such reports),             |
| and      (2) has been subject to such filing requirements for the past 90      days.  Yes R      No o                                 |
|                                                                                                                                                 |
| Indicate      by check mark whether the registrant is a large accelerated filer, a      non-accelerated filer, or a smaller reporting company.       |
| See      the definitions of "large accelerated filer", "accelerated filer", and      "smaller reporting company" in Rule 12b-2 of the  Exchange      |
| Act      (Check One) Large accelerated filer  ̈ Accelerated filer       ̈      Non-accelerated filer  ̈ Smaller reporting      company R |
|                                                                                                                                                 |
| 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                                                                           |

| PART      I.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | FINANCIAL      INFORMATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | PAGE   |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
| Item      1:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Financial      Statements                                                                                                                                                 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | Balance      Sheets as of March 31, 2008 and December 31, 2007                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | 3      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | Statement      of Net Earnings for the Three Months ended March 31,      2008                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | 4      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | Statement      of Changes in Partners’ Capital for the Three Months ended March 31,      2008                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | 5      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | Statement      of Cash Flows for the Three Months ended March 31, 2008                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | 6      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | Notes      to Financial      Statements                                                                                                                                   | 7-14   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
| Item      2:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Management’s      Discussion and Analysis of Financial Condition and Results of      Operations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | 15-18  |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
| Item      4:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Controls      and Procedures                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | 18     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
| PART      II.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |   | OTHER      INFORMATION                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
| Item      1:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Legal      Proceedings                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              | 18     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
| Item      6:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Exhibits                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | 19     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
| SIGNATURES                                                                                                                                                            | 20     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |
| CERTIFICATIONS                                                                                                                                                        | 21-24  |

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | March      31, |        |   | December      31, |   |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|----------------|-------------|--------|-------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | 2008           |        |   | 2007              |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | (Unaudited)    |        |   | (Audited)         |   |
| ASSETS                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |           |        |   |              |   |
| Current      assets:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |           |        |   |              |   |
| Cash      and cash      equivalents                                                                                                                          |   | $              | 100         |   |              | $      | 100 |   |
| Accounts      receivable –      affiliate                                                                                                              |   |           | 50,385,400  |   |              |   | 138,370,000 |   |
| Short-term      hedge receivable due from      affiliate                                                                                                     |   |           | 8,200       |   |              |   | — |   |
| Total      current      assets                                                                                                                                                        |   |           | 50,393,700  |   |              |   | 138,370,100 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |           |        |   |              |   |   |   |
| Oil      and gas properties,      net                                                                                                                        |   |           | 137,307,300 |   |              |   | 30,896,400 |   |
| Long-term      hedge receivable due from      affiliate                                                                                                      |   |           | 65,400      |   |              |   | — |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | $              | 187,766,400 |   |              | $      | 169,266,500 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |           |        |   |              |   |   |   |
| LIABILITIES      AND PARTNERS’ CAPITAL                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |           |        |   |              |   |   |   |
| Current      liabilities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |           |        |   |              |   |   |   |
| Accrued      liabilities                                                                                                                                     |   | $              | 11,400      |   |              | $      | — |   |
| Short-term      hedge liability due to      affiliate                                                                                                        |   |           | 1,572,900   |   |              |   | — |   |
| Total      current      liabilities                                                                                                                                                   |   |           | 1,584,300   |   |              |   | — |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |           |        |   |              |   |   |   |
| Asset      retirement      obligation                                                                                                                        |   |           | 1,967,200   |   |              |   | 1,000,000 |   |
| Long-term      hedge liability due to      affiliate                                                                                                         |   |           | 1,748,800   |   |              |   | — |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |           |        |   |              |   |   |   |
| Partners’      capital:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |   |           |        |   |              |   |   |   |
| Managing      general      partner                                                                                                                           |   |           | 22,717,400  |   |              |   | 5,260,700 |   |
| Investor      partners (16,345.90      units)                                                                                                                |   |           | 162,996,800 |   |              |   | 163,005,800 |   |
| Accumulated      other comprehensive      loss                                                                                                               |   |           | (3,248,100  | )      |              |   | — |   |
| Total      partners'      capital                                                                                                                                                     |   |           | 182,466,100 |   |              |   | 168,266,500 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | $              | 187,766,400 |   |              | $      | 169,266,500 |   |

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Three      Months |      |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------|-----------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Ended             |      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | March      31,    |      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | 2008              |      |
| REVENUES                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |   |              |      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |              |      |
| Natural      gas and      oil                                                                                                                           |   | $                 | 3,075,500 |   |
| Total      revenues                                                                                                                                                              |   |              | 3,075,500 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |              |      |   |
| COSTS      AND EXPENSES                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |   |              |      |   |
| Production                                                                                                                                              |   |              | 530,700   |   |
| Depletion                                                                                                                                               |   |              | 1,932,300 |   |
| Accretion      of asset retirement      obligation                                                                                                      |   |              | 31,800    |   |
| General      and      administrative                                                                                                                    |   |              | 39,400    |   |
| Total      expenses                                                                                                                                                              |   |              | 2,534,200 |   |
| Net      earnings                                                                                                                                       |   | $                 | 541,300   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |              |      |   |
| Allocation      of net earnings (loss):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |   |              |      |   |
| Managing      general      partner                                                                                                                      |   | $                 | 550,300   |   |
| Investor      partners                                                                                                                                  |   | $                 | (9,000    | ) |
| Net      loss per investor partnership      unit                                                                                                        |   | $                 | (1        | ) |

|                                                                                                                                                                                                                                                                                                                                                                                                           |   |     |       |   |     |   |        | Accumulated   |   |   |       |   |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|----------|------------|--------|----------|--------|-------------|---------------|--------|--------|------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                           |   | Managing |       |   |     |   |        | Other         |   |   |       |   |
|                                                                                                                                                                                                                                                                                                                                                                                                           |   | General  |       |   | Investor |   |        | Comprehensive |   |   |       |   |
|                                                                                                                                                                                                                                                                                                                                                                                                           |   | Partner  |       |   | Partners |   |        | Loss          |   |   | Total      |   |
|                                                                                                                                                                                                                                                                                                                                                                                                           |   |     |       |   |     |   |        |          |   |   |       |   |
| Balance      at January 1, 2008                                                                                                                                                                                                                                                                                                                                                                                |   | $        | 5,260,700  |   |     | $      | 163,005,800 |          |   | $      | —    |   |   | $ | 168,266,500 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                           |   |     |       |   |     |   |        |          |   |   |       |   |   |   |   |   |
| Participation      in revenues and expenses:                                                                                                                                                                                                                                                                                                                                                                   |   |     |       |   |     |   |        |          |   |   |       |   |   |   |   |   |
| Net      production      revenues                                                                                      |   |     | 790,200    |   |     |   | 1,754,600   |          |   |   | —    |   |   |   | 2,544,800 |   |
| Depletion                                                                                                              |   |     | (217,800   | )      |     |   | (1,714,500  | )             |   |   | —    |   |   |   | (1,932,300 | ) |
| General      and      administrative                                                                                   |   |     | (12,200    | )      |     |   | (27,200     | )             |   |   | —    |   |   |   | (39,400 | ) |
| Accretion      of asset retirement obligation                                                                                                                                                                                                                                                                                                                                                                  |   |     | (9,900     | )      |     |   | (21,900     | )             |   |   | —    |   |   |   | (31,800 | ) |
| Net      earnings      (loss)                                                                                                                        |   |     | 550,300    |   |     |   | (9,000      | )             |   |   | —    |   |   |   | 541,300 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                           |   |     |       |   |     |   |        |          |   |   |       |   |   |   |   |   |
| Other      comprehensive      loss                                                                                |   |     | —    |   |     |   | —     |          |   |   | (3,248,100 | )      |   |   | (3,248,100 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                           |   |     |       |   |     |   |        |          |   |   |       |   |   |   |   |   |
| MGP      asset      contribution                                                              |   |     | 16,906,400 |   |     |   | —     |          |   |   | —    |   |   |   | 16,906,400 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                           |   |     |       |   |     |   |        |          |   |   |       |   |   |   |   |   |
| Balance      at March 31, 2008                                                                                                                                                                                                                                                                                                                                                                                 |   | $        | 22,717,400 |   |     | $      | 162,996,800 |          |   | $      | (3,248,100 | )      |   | $ | 182,466,100 |   |

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Three      Months   |       |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|---------------------|------------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Ended               |       |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | March      31, 2008 |       |
| Cash      flows from operating activities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |                |       |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |                |       |
| Net      earnings                                                                                                                                                   |   | $                   | 541,300    |   |
| Adjustments      to reconcile net earnings to net cash used in operating      activities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |                |       |   |
| Depletion                                                                                                                                                                                         |   |                | 1,932,300  |   |
| Accretion      of asset retirement      obligation                                                                                                                                                |   |                | 31,800     |   |
| Increase      in accounts      receivable-affiliate                                                                                                                                               |   |                | (2,516,800 | ) |
| Increase      in accrued      liabilities                                                                                                                                                         |   |                | 11,400     |   |
| Net      cash used in operating      activities                                                                                                                     |   |                | —    |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |                |       |   |
| Net      increase in cash and cash      equivalents                                                                                                                 |   |                | —    |   |
| Cash      and cash equivalents at beginning of      period                                                                                                          |   |                | 100        |   |
| Cash      and cash equivalents at end of      period                                                                                                                |   | $                   | 100        |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |                |       |   |
| Supplemental Schedule      of non-cash investing and financing activities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |                |       |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |                |       |   |
| Assets      contributed by managing general partner:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |                |       |   |
| Tangible      costs                                                                                                                                                                          |   | $                   | 14,587,500 |   |
| Lease      costs                                                                                                                                                                             |   |                | 2,318,900  |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | $                   | 16,906,400 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |                |       |   |
| Asset      retirement      obligation                                                                                                                               |   | $                   | 935,400    |   |

| Oil      and gas properties consist of the following at the dates      indicated: |   | March      31, |        |   | December      31, |   |
|-----------------------------------------------------------------------------------|--------|----------------|-------------|--------|-------------------|--------|
|                                                                              |   | 2008           |        |   | 2007              |   |
| Natural      gas and oil properties:                                              |   |           |        |   |              |   |
| Proved      properties:                                                           |   |           |        |   |              |   |
| Leasehold      interests                                                          |   | $              | 3,947,500   |   |              | $      | 1,628,600 |   |
| Wells      and related equipment                                                  |   |           | 135,317,800 |   |              |   | 29,293,500 |   |
|                                                                              |   |           | 139,265,300 |   |              |   | 30,922,100 |   |
|                                                                              |   |           |        |   |              |   |   |   |
| Accumulated      depletion of oil and gas properties                              |   |           | (1,958,000  | )      |              |   | (25,700 | ) |
|                                                                              |   | $              | 137,307,300 |   |              | $      | 30,896,400 |   |

| ·   | Administrative      costs which are included in general and administrative expenses in the      Partnership’s Statement of Net Earnings are payable at $75 per well per      month.  Administrative costs incurred for the three months ended      March 31, 2008 were $12,600. |
|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Monthly      well supervision fees which are included in production expenses in the      Partnership’s Statement of Net Earnings are payable at $377 per well per      month for operating and maintaining the wells.  Well supervision      fees incurred for the three months ended March 31, 2008 were      $63,200. |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Transportation      fees which are included in production expenses in the Partnership’s      Statement of Net Earnings are generally payable at 13% of the natural gas      sales price.  Transportation fees incurred for the three months      ended March 31, 2008 were $389,800. |
|--------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Asset      contributions from the MGP which are disclosed on the Partnership’s      Statement of Cash Flows as a non-cash activity for the three months ended      March 31, 2008 were $16,906,400. |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | As      of March 31, 2008, the Partnership has funded $163,010,400 to the MGP for      well drilling contracts of which $115,169,300 has been spent to date on      well drilling costs and the remaining balance of $47,841,100 is shown as      part of Accounts receivable-affiliate, due from the MGP, on the      Partnership's Balance Sheets. |
|--------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   | Three      Months |       |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------|------------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   | Ended             |       |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   | March      31,    |       |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   | 2008              |       |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   |              |       |
| Net      earnings                                                                                                                                                        |   | $                 | 541,300    |   |
| Other      comprehensive loss:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |              |       |   |
| Unrealized      holding loss on hedging      contracts                                                                                                                   |   |              | (3,132,000 | ) |
| Less:      reclassification adjustment for gains realized in net    earnings                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |              | (116,100   | ) |
| Total      other comprehensive      loss                                                                                                                                 |   |              | (3,248,100 | ) |
| Comprehensive      loss                                                                                                                                                  |   | $                 | (2,706,800 | ) |

| Natural      Gas Fixed Price Swaps |   |             |    |   |             |   |   |                 |   |
|------------------------------------|--------|------------------|---------|--------|------------------|--------|--------|----------------------|--------|
|                               |   |             |    |   |             |   |   |                 |   |
| Production                         |   |             |    |   | Average          |   |   | Fair      Value      |   |
| Period      Ending                 |   | Volumes          |    |   | Fixed      Price |   |   | Asset/               |   |
| December      31,                  |   | (MMbtu)      (1) |    |   | (per      MMbtu) |   |   | (Liability)      (2) |   |
|                               |   |             |    |   |             |   |   |                 |   |
| 2008                               |   |             | 676,700 |   |             | $      | 8.81   |                 |   | $ | (973,500 | ) |
| 2009                               |   |             | 836,700 |   |             |   | 8.42   |                 |   |   | (1,039,800 | ) |
| 2010                               |   |             | 492,200 |   |             |   | 7.80   |                 |   |   | (565,200 | ) |
| 2011                               |   |             | 246,100 |   |             |   | 7.51   |                 |   |   | (274,900 | ) |
| 2012                               |   |             | 164,000 |   |             |   | 8.65   |                 |   |   | (4,700 | ) |
| 2013                               |   |             | 41,000  |   |             |   | 8.73   |                 |   |   | (3,200 | ) |
|                               |   |             |    |   |             |   |   |                 |   | $ | (2,861,300 | ) |

| Natural      Gas Costless Collars |   |                |   |             |    |   |                 |   |   |                 |   |
|-----------------------------------|--------|---------------------|--------|------------------|---------|--------|----------------------|--------|--------|----------------------|--------|
|                              |   |                |   |             |    |   |                 |   |   |                 |   |
| Production                        |   |                |   |             |    |   | Average              |   |   | Fair      Value      |   |
| Period      Ending                |   | Option              |   | Volumes          |    |   | Floor      & Cap |   |   | Asset/               |   |
| December      31,                 |   | Type                |   | (MMbtu)      (1) |    |   | (per      MMbtu)     |   |   | (Liability)      (2) |   |
|                              |   |                |   |             |    |   |                 |   |   |                 |   |
| 2008                              |   | Puts      purchased |   |             | 53,300  |   |                 | $      | 7.50   |                 |   | $ | — |   |
| 2008                              |   | Calls      sold     |   |             | 53,300  |   |                 |   | 9.40   |                 |   |   | (64,800 | ) |
| 2010                              |   | Puts      purchased |   |             | 131,300 |   |                 |   | 7.75   |                 |   |   | — |   |
| 2010                              |   | Calls      sold     |   |             | 131,300 |   |                 |   | 8.75   |                 |   |   | (93,600 | ) |
| 2011                              |   | Puts      purchased |   |             | 328,100 |   |                 |   | 7.50   |                 |   |   | — |   |
| 2011                              |   | Calls      sold     |   |             | 328,100 |   |                 |   | 8.45   |                 |   |   | (226,400 | ) |
| 2012                              |   | Puts      purchased |   |             | 32,800  |   |                 |   | 7.00   |                 |   |   | — |   |
| 2012                              |   | Calls      sold     |   |             | 32,800  |   |                 |   | 8.37   |                 |   |   | (28,900 | ) |
|                              |   |                |   |             |    |   |                 |   |   |                 |   | $ | (413,700 | ) |

| Crude      Oil Fixed Price Swaps |   |    |   |   |             |   |   |                 |   |
|----------------------------------|--------|---------|--------|--------|------------------|--------|--------|----------------------|--------|
|                             |   |    |   |   |             |   |   |                 |   |
| Production                       |   |    |   |   | Average          |   |   | Fair      Value      |   |
| Period      Ending               |   | Volumes |   |   | Fixed      Price |   |   | Asset/               |   |
| December      31,                |   | (Bbl)   |   |   | (per      Bbl)   |   |   | (Liability)      (2) |   |
|                             |   |    |   |   |             |   |   |                 |   |
| 2008                             |   |    | 1,500  |   |             | $      | 103.25 |                 |   | $ | 5,700 |   |
| 2009                             |   |    | 1,600  |   |             |   | 99.03  |                 |   |   | 5,300 |   |
| 2010                             |   |    | 1,400  |   |             |   | 96.52  |                 |   |   | 3,500 |   |
| 2011                             |   |    | 1,100  |   |             |   | 95.79  |                 |   |   | 2,400 |   |
| 2012                             |   |    | 1,000  |   |             |   | 95.35  |                 |   |   | 1,600 |   |
| 2013                             |   |    | 300    |   |             |   | 95.35  |                 |   |   | 400 |   |
|                             |   |    |   |   |             |   |   |                 |   | $ | 18,900 |   |

| Crude      Oil Costless Collars |   |                |   |    |   |   |                 |                     |   |                 |   |
|---------------------------------|--------|---------------------|--------|---------|--------|--------|----------------------|--------------------------|--------|----------------------|--------|
|                            |   |                |   |    |   |   |                 |                     |   |                 |   |
| Production                      |   |                |   |    |   |   | Average              |                     |   | Fair      Value      |   |
| Period      Ending              |   | Option              |   | Volumes |   |   | Floor      & Cap |                     |   | Asset/               |   |
| December      31,               |   | Type                |   | (Bbl)   |   |   | (per      Bbl)       |                     |   | (Liability)      (2) |   |
|                            |   |                |   |    |   |   |                 |                     |   |                 |   |
| 2008                            |   | Puts      purchased |   |    | 1,400  |   |                 | $                        | 85.00  |                 |   | $ | 700 |   |
| 2008                            |   | Calls      sold     |   |    | 1,400  |   |                 |                     | 127.13 |                 |   |   | — |   |
| 2009                            |   | Puts      purchased |   |    | 1,700  |   |                 |                     | 85.00  |                 |   |   | 2,300 |   |
| 2009                            |   | Calls      sold     |   |    | 1,700  |   |                 |                     | 118.63 |                 |   |   | — |   |
| 2010                            |   | Puts      purchased |   |    | 1,400  |   |                 |                     | 85.00  |                 |   |   | 2,000 |   |
| 2010                            |   | Calls      sold     |   |    | 1,400  |   |                 |                     | 112.92 |                 |   |   | — |   |
| 2011                            |   | Puts      purchased |   |    | 1,200  |   |                 |                     | 85.00  |                 |   |   | 1,600 |   |
| 2011                            |   | Calls      sold     |   |    | 1,200  |   |                 |                     | 110.81 |                 |   |   | — |   |
| 2012                            |   | Puts      purchased |   |    | 1,000  |   |                 |                     | 85.00  |                 |   |   | 1,100 |   |
| 2012                            |   | Calls      sold     |   |    | 1,000  |   |                 |                     | 110.06 |                 |   |   | — |   |
| 2013                            |   | Puts      purchased |   |    | 300    |   |                 |                     | 85.00  |                 |   |   | 300 |   |
| 2013                            |   | Calls      sold     |   |    | 300    |   |                 |                     | 110.09 |                 |   |   | — |   |
|                            |   |                |   |    |   |   |                 |                     |   |                 |   | $ | 8,000 |   |
|                            |   |                |   |    |   |   |                 |                     |   |                 |   |   |   |   |
|                            |   |                |   |    |   |   |                 | Total      Net Liability |   |                 | $      | (3,248,100 | ) |

| (1)   | MMBTU      represents million British ThermalUnits. |
|-----------------|-----------------------------------------------------|

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

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |   | March      31, 2008 |       |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|---------------------|------------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |   | Book      Value     |       |   | Fair      Value |   |
| Assets                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |                |       |   |   |   |
| Derivative      instruments                                                                                        |   | $                   | 73,600     |   |   | $ | 73,600 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |   | $                   | 73,600     |   |   | $ | 73,600 |   |
| Liabilities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                |       |   |   |   |   |   |
| Derivative      instruments                                                                                        |   | $                   | (3,321,700 | ) |   | $ | (3,321,700 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |   | $                   | (3,248,100 | ) |   | $ | (3,248,100 | ) |

|                                                                                                                                                                                                                                                                                                                                |   | Fair      Value Measurements at March 31, 2008 Using |    |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|------------------------------------------------------|---------|
|                                                                                                                                                                                                                                                                                                                                |   | Quoted      prices                                   |    |   | Significant      other |   |   | Significant |   |
|                                                                                                                                                                                                                                                                                                                                |   | in      active                                       |    |   | observable |   |   | unobservable |   |
|                                                                                                                                                                                                                                                                                                                                |   | markets                                              |    |   | inputs |   |   | inputs |   |
|                                                                                                                                                                                                                                                                                                                                |   | (Level      1)                                       |    |   | (Level      2) |   |   | (Level      3) |   |
|                                                                                                                                                                                                                                                                                                                                |   |                                                 |    |   |   |   |   |   |   |
| Commodity-based      derivatives                                                                                                                                                                                                                                                                                                    |   | $                                                    | — |   |   | $ | (3,248,100 | ) |   | $ | — |   |
|                                                                                                                                                                                                                                                                                                                                |   |                                                 |    |   |   |   |   |   |   |   |   |   |
| Total                                                      |   | $                                                    | — |   |   | $ | (3,248,100 | ) |   | $ | — |   |

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | Three      Months |      |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------|-----------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | Ended             |      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | March      31,    |      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | 2008              |      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |              |      |
| Asset      retirement obligation at beginning of      period                                                                                                   |   | $                 | 1,000,000 |   |
| Liabilities      incurred from drilling      wells                                                                                                             |   |              | 935,400   |   |
| Accretion      expense                                                                                                                                         |   |              | 31,800    |   |
| Asset      retirement obligation at end of      period                                                                                                         |   | $                 | 1,967,200 |   |

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |              |   |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | Three      Months |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | Ended             |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | March      31,    |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | 2008              |   |
| Production      revenues (in thousands):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |              |   |
| Gas                                                                                                                                                               |   | $                 | 3,043  |   |
| Oil                                                                                                                                                               |   | $                 | 33     |   |
| Total                                                                                                                                                             |   | $                 | 3,076  |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |              |   |   |
| Production      volumes:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |              |   |   |
| Gas      (mcf/day)      (2)                                                                                                                                       |   |              | 4,029  |   |
| Oil      (bbls/day)      (2)                                                                                                                                      |   |              | 4      |   |
| Total      (mcfe/day)      (2)                                                                                                                                    |   |              | 4,053  |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |              |   |   |
| Average      sales prices:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |              |   |   |
| Gas      (per mcf) (1)      (2)                                                                                                                                   |   | $                 | 8.30   |   |
| Oil      (per bbl)      (2)                                                                                                                                       |   | $                 | 92.19  |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |              |   |   |
| Average      production costs:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |              |   |   |
| As      a percent of      sales                                                                                                                                   |   |              | 17     | % |
| Per      mcfe      (2)                                                                                                                                            |   | $                 | 1.44   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |              |   |   |
| Depletion      per      mcfe                                                                                                             |   | $                 | 5.24   |   |

| (1)   | The      average sales price per mcf before the effects of hedging was $7.98 for      the three months ended March 31,2008. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------|

| (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. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Exhibit      No. |   | Description                                                                                                                        |
|------------------|--------|------------------------------------------------------------------------------------------------------------------------------------|
|             |   |                                                                                                                               |
|   4.0  |   | Amended      and Restated Certificate and Agreement of Limited Partnership for Atlas      America      Public 17-2007 (A) L.P. (1) |
|  10.1       |   | Drilling      and Operating Agreement for Atlas America Public 17-2007 (A) L.P. (1)                                                |
|  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   |

| (1)   | Filed      on June 27, 2007 in the Form S-1 Registration Statement dated June 27,      2007, File No. 333-144070. |
|-----------------|-------------------------------------------------------------------------------------------------------------------|

| 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      Resources Public 17-2007 (A) L.P.                                                                                                                                                                    |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   | Atlas      Resources, LLC, Managing General Partner |
|                                                                                                                                                                                                            |   |   |
| Date:  May      13, 2008                                                                                                                                                                              |   | By:/s/ Freddie M.      Kotek |
|                                                                                                                                                                                                            |   | Freddie      M. Kotek, Chairman of the Board of Directors, Chief Executive      Officer |
|                                                                                                                                                                                                            |   | and      President |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
| 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.                          |
|                                                                                                                                                                                                            |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
| Date:  May      13, 2008                                                                                                                                                                              |   | By:/s/ Freddie M.      Kotek |
|                                                                                                                                                                                                            |   | Freddie      M. Kotek, Chairman of the Board of Directors, Chief    Executive |
|                                                                                                                                                                                                            |   | Officer      and President |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
| Date:  May      13, 2008                                                                                                                                                                              |   | By:/s/ Matthew A.      Jones |
|                                                                                                                                                                                                            |   | Matthew      A. Jones, Chief Financial Officer |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
| Date:  May      13, 2008                                                                                                                                                                              |   | By:/s/ Nancy J.      McGurk |
|                                                                                                                                                                                                            |   | Nancy      J. McGurk, Vice President, Chief Accounting Officer |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |