|                                                                                                                                                 | 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 June 30, 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 Rd. 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 June 30, 2008 and December 31, 2007                                         | 3      |
|           |   |                                                                                                  |   |
|           |   | Statements      of Net Earnings for the Three Months and Six Months ended June 30,      2008          | 4      |
|           |   |                                                                                                  |   |
|           |   | Statement      of Changes in Partners’ Capital for the Six Months ended June 30,      2008      | 5      |
|           |   |                                                                                                  |   |
|           |   | Statement      of Cash Flows for the Six Months ended June 30, 2008                                   | 6      |
|           |   |                                                                                                  |   |
|           |   | Notes      to Financial Statements                                                                    | 7-15   |
|           |   |                                                                                                  |   |
| 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                                                                                | 19     |
|           |   |                                                                                                  |   |
| Item      6:   |   | Exhibits                                                                                              | 19     |
|           |   |                                                                                                  |   |
|           |   |                                                                                                  |   |
| SIGNATURES     | 20     |
|           |   |                                                                                                  |   |
| CERTIFICATIONS | 21-24  |

|                                             |   | June      30, |        |   | December      31, |   |
|--------------------------------------------------|--------|---------------|-------------|--------|-------------------|--------|
|                                             |   | 2008          |        |   | 2007              |   |
|                                             |   | (Unaudited)   |        |   |              |   |
| ASSETS                                           |   |          |        |   |              |   |
| Current      assets:                             |   |          |        |   |              |   |
| Cash      and cash equivalents                   |   | $             | 2,684,200   |   |              | $      | 100 |   |
| Accounts      receivable – affiliate       |   |          | 15,442,900  |   |              |   | 138,370,000 |   |
| Total      current assets                        |   |          | 18,127,100  |   |              |   | 138,370,100 |   |
|                                             |   |          |        |   |              |   |   |   |
| Oil      and gas properties, net                 |   |          | 173,447,300 |   |              |   | 30,896,400 |   |
|                                             |   | $             | 191,574,400 |   |              | $      | 169,266,500 |   |
|                                             |   |          |        |   |              |   |   |   |
| LIABILITIES      AND PARTNERS’ CAPITAL     |   |          |        |   |              |   |   |   |
| Current      liabilities:                        |   |          |        |   |              |   |   |   |
| Accrued      liabilities                         |   | $             | 12,100      |   |              | $      | — |   |
| Short-term      hedge liability due to affiliate |   |          | 10,457,400  |   |              |   | — |   |
| Total      current liabilities                   |   |          | 10,469,500  |   |              |   | — |   |
|                                             |   |          |        |   |              |   |   |   |
| Asset      retirement obligation                 |   |          | 1,870,400   |   |              |   | 1,000,000 |   |
| Long-term      hedge liability due to affiliate  |   |          | 15,326,900  |   |              |   | — |   |
|                                             |   |          |        |   |              |   |   |   |
| Partners’      capital:                    |   |          |        |   |              |   |   |   |
| Managing      general partner                    |   |          | 26,367,000  |   |              |   | 5,260,700 |   |
| Investor      partners (16,345.90 units)         |   |          | 163,324,900 |   |              |   | 163,005,800 |   |
| Accumulated      other comprehensive loss        |   |          | (25,784,300 | )      |              |   | — |   |
| Total      partners' capital                     |   |          | 163,907,600 |   |              |   | 168,266,500 |   |
|                                             |   | $             | 191,574,400 |   |              | $      | 169,266,500 |   |

|                                            |   | Three      Months |      |   | Six      Months |   |
|-------------------------------------------------|--------|-------------------|-----------|--------|-----------------|--------|
|                                            |   | Ended             |      |   | Ended           |   |
|                                            |   | June      30,     |      |   | June      30,   |   |
|                                            |   | 2008              |      |   | 2008            |   |
| REVENUES                                        |   |              |      |   |            |   |
|                                            |   |              |      |   |            |   |
| Natural      gas and oil                        |   | $                 | 8,523,800 |   |            | $      | 11,599,300 |   |
| Interest      income                            |   |              | 2,000     |   |            |   | 2,000 |   |
| Total      revenues                             |   |              | 8,525,800 |   |            |   | 11,601,300 |   |
|                                            |   |              |      |   |            |   |   |   |
| COSTS      AND EXPENSES                         |   |              |      |   |            |   |   |   |
| Production                                      |   |              | 1,965,500 |   |            |   | 2,496,200 |   |
| Depletion                                       |   |              | 4,504,700 |   |            |   | 6,437,000 |   |
| Accretion      of asset retirement obligation   |   |              | 27,500    |   |            |   | 59,300 |   |
| General      and administrative                 |   |              | 127,900   |   |            |   | 167,300 |   |
| Total      expenses                             |   |              | 6,625,600 |   |            |   | 9,159,800 |   |
| Net      earnings                               |   | $                 | 1,900,200 |   |            | $      | 2,441,500 |   |
|                                            |   |              |      |   |            |   |   |   |
| Allocation      of net earnings:                |   |              |      |   |            |   |   |   |
| Managing      general partner                   |   | $                 | 1,572,100 |   |            | $      | 2,122,400 |   |
| Investor      partners                          |   | $                 | 328,100   |   |            | $      | 319,100 |   |
| Net      earnings per investor partnership unit |   | $                 | 20        |   |            | $      | 19 |   |

|                                                                                                                                                                                                                                                                                                                                                                                                             |   |     |       |   |     |   |        | 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                                                                                        |   |     | 2,826,500  |   |     |   | 6,276,600   |          |   |   | —     |   |   |   | 9,103,100 |   |
| Interest      income                                                                                                     |   |     | 600        |   |     |   | 1,400       |          |   |   | —     |   |   |   | 2,000 |   |
| Depletion                                                                                                                |   |     | (634,400   | )      |     |   | (5,802,600  | )             |   |   | —     |   |   |   | (6,437,000 | ) |
| General      and      administrative                                                                                     |   |     | (51,900    | )      |     |   | (115,400    | )             |   |   | —     |   |   |   | (167,300 | ) |
| Accretion      of asset retirement obligation                                                                                                                                                                                                                                                                                                                                                                    |   |     | (18,400    | )      |     |   | (40,900     | )             |   |   | —     |   |   |   | (59,300 | ) |
| Net      earnings                                                                                                                                      |   |     | 2,122,400  |   |     |   | 319,100     |          |   |   | —     |   |   |   | 2,441,500 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   |     |       |   |     |   |        |          |   |   |        |   |   |   |   |   |
| Other      comprehensive      loss                                                              |   |     | —    |   |     |   | —     |          |   |   | (25,784,300 | )      |   |   | (25,784,300 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   |     |       |   |     |   |        |          |   |   |        |   |   |   |   |   |
| Asset      contributions                                                                        |   |     | 18,983,900 |   |     |   | —     |          |   |   | —     |   |   |   | 18,983,900 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                             |   |     |       |   |     |   |        |          |   |   |        |   |   |   |   |   |
| Balance      at June 30, 2008                                                                                                                                                                                                                                                                                                                                                                                    |   | $        | 26,367,000 |   |     | $      | 163,324,900 |          |   | $      | (25,784,300 | )      |   | $ | 163,907,600 |   |

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Six      Months    |       |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------------------|------------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | Ended              |       |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | June      30, 2008 |       |
| Cash      flows from operating activities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |               |       |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |               |       |
| Net      earnings                                                                                                                                                   |   | $                  | 2,441,500  |   |
| Adjustments      to reconcile net earnings to net cash used in operating      activities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |               |       |   |
| Depletion                                                                                                                                                                                         |   |               | 6,437,000  |   |
| Accretion      of asset retirement      obligation                                                                                                                                                |   |               | 59,300     |   |
| Increase      in accounts      receivable-affiliate                                                                                                                                               |   |               | (6,265,800 | ) |
| Increase      in accrued      liabilities                                                                                                                                                         |   |               | 12,100     |   |
| Net      cash provided by operating      activities                                                                                                                 |   |               | 2,684,100  |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |               |       |   |
| Net      increase in cash and cash      equivalents                                                                                                                 |   |               | 2,684,100  |   |
| Cash      and cash equivalents at beginning of      period                                                                                                          |   |               | 100        |   |
| Cash      and cash equivalents at end of      period                                                                                                                |   | $                  | 2,684,200  |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |               |       |   |
| Supplemental Schedule      of non-cash investing and financing activities:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   |               |       |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |               |       |   |
| Assets      contributed by managing general partner:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |               |       |   |
| Tangible      costs                                                                                                                                                                          |   | $                  | 16,918,500 |   |
| Lease      costs                                                                                                                                                                             |   |               | 2,065,400  |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   | $                  | 18,983,900 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |               |       |   |
| Asset      retirement      obligation                                                                                                                               |   | $                  | 811,100    |   |

| Oil      and gas properties consist of the following at the dates      indicated:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |   | June      30, |        |   | December      31, |   |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|---------------|-------------|--------|-------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | 2008          |        |   | 2007              |   |
| Natural      gas and oil properties:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |          |        |   |              |   |
| Proved      properties:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |   |          |        |   |              |   |
| Leasehold      interests                                                                                                                   |   | $             | 3,694,000   |   |              | $      | 1,628,600 |   |
| Wells      and related      equipment                                                                                                      |   |          | 176,216,000 |   |              |   | 29,293,500 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |          | 179,910,000 |   |              |   | 30,922,100 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |          |        |   |              |   |   |   |
| Accumulated      depletion                                                                                        |   |          | (6,462,700  | )      |              |   | (25,700 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   | $             | 173,447,300 |   |              | $      | 30,896,400 |   |

| ·   | Administrative      costs which are included in general and administrative expenses in the      Partnership’s Statements of Net Earnings are payable at $75 per well per      month. Administrative costs incurred for the three months and six months      ended June 30, 2008 were $43,000 and $55,600,  respectively. |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Monthly      well supervision fees which are included in production expenses in the      Partnership’s Statements 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 and six months ended June 30, 2008 were      $216,100 and $279,300,respectively. |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Transportation      fees which are included in production expenses in the Partnership’s      Statements of Net Earnings are generally payable at 13% of the natural gas      sales price.  Transportation fees incurred for the three months      and six months ended June 30, 2008 were $1,321,200 and $1,711,000,      respectively. |
|--------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Asset      contributions from the MGP which are disclosed on the Partnership’s      Statement of Cash Flows as a non-cash activity for the six months ended      June 30, 2008 were $18,983,900. |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | As      of June 30, 2008, the Partnership has funded $163,010,400 to the MGP for      well drilling contracts of which $153,860,800 has been spent to date on      well drilling costs and the remaining balance of $9,149,600 is shown as      Accounts receivable-affiliate, on the Partnership's Balance      Sheets. |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | Three      Months |        |   | Six      Months |   |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------|-------------|--------|-----------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | Ended             |        |   | Ended           |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | June      30,     |        |   | June      30,   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | 2008              |        |   | 2008            |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |              |        |   |            |   |
| Net      earnings                                                                                                                                          |   | $                 | 1,900,200   |   |            | $      | 2,441,500 |   |
| Other      comprehensive loss:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |   |              |        |   |            |   |   |   |
| Unrealized      holding loss on hedging      contracts                                                                                                     |   |              | (22,706,400 | )      |            |   | (25,838,400 | ) |
| Less:      reclassification adjustment for loss realized in net    earnings                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |   |              | 170,200     |   |            |   | 54,100 |   |
| Total      other comprehensive      loss                                                                                                                   |   |              | (22,536,200 | )      |            |   | (25,784,300 | ) |
| Comprehensive      loss                                                                                                                                    |   | $                 | (20,636,000 | )      |            | $      | (23,342,800 | ) |

|               |   |   |             |      |   |             |   |   |               |   |
|--------------------|--------|--------|------------------|-----------|--------|------------------|--------|--------|--------------------|--------|
| Production         |   |   |             |      |   | Average          |   |   |               |   |
| Period      Ending |   |   | Volumes          |      |   | Fixed      Price |   |   | Fair      Value    |   |
| December      31,  |   |   | (MMbtu)      (1) |      |   | (per      MMbtu) |   |   | Liability      (2) |   |
|               |   |   |             |      |   |             |   |   |               |   |
| 2008               |   |   |             | 1,154,300 |   |             | $      | 8.77   |               |   | $ | (5,406,600 | ) |
| 2009               |   |   |             | 2,203,700 |   |             |   | 8.54   |               |   |   | (8,309,500 | ) |
| 2010               |   |   |             | 1,538,400 |   |             |   | 8.11   |               |   |   | (4,476,400 | ) |
| 2011               |   |   |             | 1,090,300 |   |             |   | 7.90   |               |   |   | (2,840,400 | ) |
| 2012               |   |   |             | 805,400   |   |             |   | 8.20   |               |   |   | (1,824,100 | ) |
| 2013               |   |   |             | 87,500    |   |             |   | 8.73   |               |   |   | (157,600 | ) |
|               |   |   |             |      |   |             |   |   |               |   | $ | (23,014,600 | ) |

|               |   |                |   |             |    |   |                 |   |   |               |   |
|--------------------|--------|---------------------|--------|------------------|---------|--------|----------------------|--------|--------|--------------------|--------|
| Production         |   |                |   |             |    |   | Average              |   |   |               |   |
| Period      Ending |   | Option              |   | Volumes          |    |   | Floor      & Cap |   |   | Fair      Value    |   |
| December      31,  |   | Type                |   | (MMbtu)      (1) |    |   | (per      MMbtu)     |   |   | Liability      (2) |   |
|               |   |                |   |             |    |   |                 |   |   |               |   |
| 2008               |   | Puts      purchased |   |             | 45,600  |   |                 | $      | 7.50   |               |   | $ | — |   |
| 2008               |   | Calls      sold     |   |             | 45,600  |   |                 |   | 9.40   |               |   |   | (186,300 | ) |
| 2010               |   | Puts      purchased |   |             | 168,100 |   |                 |   | 7.75   |               |   |   | — |   |
| 2010               |   | Calls      sold     |   |             | 168,100 |   |                 |   | 8.75   |               |   |   | (428,200 | ) |
| 2011               |   | Puts      purchased |   |             | 420,200 |   |                 |   | 7.50   |               |   |   | — |   |
| 2011               |   | Calls      sold     |   |             | 420,200 |   |                 |   | 8.45   |               |   |   | (965,100 | ) |
| 2012               |   | Puts      purchased |   |             | 42,000  |   |                 |   | 7.00   |               |   |   | — |   |
| 2012               |   | Calls      sold     |   |             | 42,000  |   |                 |   | 8.37   |               |   |   | (98,300 | ) |
|               |   |                |   |             |    |   |                 |   |   |               |   | $ | (1,677,900 | ) |

|               |   |   |    |   |   |             |   |   |               |   |
|--------------------|--------|--------|---------|--------|--------|------------------|--------|--------|--------------------|--------|
| Production         |   |   |    |   |   | Average          |   |   |               |   |
| Period      Ending |   |   | Volumes |   |   | Fixed      Price |   |   | Fair      Value    |   |
| December      31,  |   |   | (Bbl)   |   |   | (per      Bbl)   |   |   | Liability      (3) |   |
|               |   |   |    |   |   |             |   |   |               |   |
| 2008               |   |   |    | 3,700  |   |             | $      | 104.24 |               |   | $ | (132,800 | ) |
| 2009               |   |   |    | 5,000  |   |             |   | 99.92  |               |   |   | (200,900 | ) |
| 2010               |   |   |    | 4,200  |   |             |   | 97.31  |               |   |   | (161,100 | ) |
| 2011               |   |   |    | 3,600  |   |             |   | 96.43  |               |   |   | (125,400 | ) |
| 2012               |   |   |    | 3,000  |   |             |   | 96.00  |               |   |   | (98,400 | ) |
| 2013               |   |   |    | 700    |   |             |   | 95.95  |               |   |   | (25,600 | ) |
|               |   |   |    |   |   |             |   |   |               |   | $ | (744,200 | ) |

|               |   |                |   |    |   |   |                 |                     |   |               |   |
|--------------------|--------|---------------------|--------|---------|--------|--------|----------------------|--------------------------|--------|--------------------|--------|
| Production         |   |                |   |    |   |   | Average              |                     |   |               |   |
| Period      Ending |   | Option              |   | Volumes |   |   | Floor      & Cap |                     |   | Fair      Value    |   |
| December      31,  |   | Type                |   | (Bbl)   |   |   | (per      Bbl)       |                     |   | Liability      (3) |   |
|               |   |                |   |    |   |   |                 |                     |   |               |   |
| 2008               |   | Puts      purchased |   |    | 1,900  |   |                 | $                        | 85.00  |               |   | $ | — |   |
| 2008               |   | Calls      sold     |   |    | 1,900  |   |                 |                     | 127.00 |               |   |   | (30,900 | ) |
| 2009               |   | Puts      purchased |   |    | 3,200  |   |                 |                     | 85.00  |               |   |   | — |   |
| 2009               |   | Calls      sold     |   |    | 3,200  |   |                 |                     | 118.63 |               |   |   | (91,500 | ) |
| 2010               |   | Puts      purchased |   |    | 2,700  |   |                 |                     | 85.00  |               |   |   | — |   |
| 2010               |   | Calls      sold     |   |    | 2,700  |   |                 |                     | 112.92 |               |   |   | (84,100 | ) |
| 2011               |   | Puts      purchased |   |    | 2,300  |   |                 |                     | 85.00  |               |   |   | — |   |
| 2011               |   | Calls      sold     |   |    | 2,300  |   |                 |                     | 110.81 |               |   |   | (71,300 | ) |
| 2012               |   | Puts      purchased |   |    | 1,900  |   |                 |                     | 85.00  |               |   |   | — |   |
| 2012               |   | Calls      sold     |   |    | 1,900  |   |                 |                     | 110.06 |               |   |   | (54,800 | ) |
| 2013               |   | Puts      purchased |   |    | 500    |   |                 |                     | 85.00  |               |   |   | — |   |
| 2013               |   | Calls      sold     |   |    | 500    |   |                 |                     | 110.09 |               |   |   | (15,000 | ) |
|               |   |                |   |    |   |   |                 |                     |   |               |   | $ | (347,600 | ) |
|               |   |                |   |    |   |   |                 |                     |   |               |   |   |   |   |
|               |   |                |   |    |   |   |                 | Total      Net Liability |   |               | $      | (25,784,300 | ) |

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

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

| (3)   | Fair      value based on forward WTI crude oilprices. |
|-----------------|-------------------------------------------------------|

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | June      30, |        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|---------------|-------------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | 2008          |        |
| Short-term      hedge receivable due from      affiliate                                                                                      |   | $             | —     |   |
| Long-term      hedge receivable due from      affiliate                                                                                       |   |          | —     |   |
| Short-term      hedge liability due to      affiliate                                                                                         |   |          | (10,457,400 | ) |
| Long-term      hedge liability due to      affiliate                                                                                          |   |          | (15,326,900 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | $             | (25,784,300 | ) |

|                                                                                                                                                                                                                                                                                                                                |   | Fair      Value Measurements at June 30, 2008 Using |    |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------------------|---------|
|                                                                                                                                                                                                                                                                                                                                |   | Quoted      prices                                  |    |   | Significant      other |   |   | Significant |   |
|                                                                                                                                                                                                                                                                                                                                |   | in      active                                      |    |   | observable |   |   | unobservable |   |
|                                                                                                                                                                                                                                                                                                                                |   | markets                                             |    |   | inputs |   |   | inputs |   |
|                                                                                                                                                                                                                                                                                                                                |   | (Level      1)                                      |    |   | (Level      2) |   |   | (Level      3) |   |
|                                                                                                                                                                                                                                                                                                                                |   |                                                |    |   |   |   |   |   |   |
| Commodity-based      derivatives                                                                                                                                                                                                                                                                                                    |   | $                                                   | — |   |   | $ | (25,784,300 | ) |   | $ | — |   |
|                                                                                                                                                                                                                                                                                                                                |   |                                                |    |   |   |   |   |   |   |   |   |   |
| Total                                                      |   | $                                                   | — |   |   | $ | (25,784,300 | ) |   | $ | — |   |

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | Three      Months |      |   | Six      Months |   |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------|-----------|--------|-----------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | Ended             |      |   | Ended           |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | June      30,     |      |   | June      30,   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   | 2008              |      |   | 2008            |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |   |              |      |   |            |   |
| Asset      retirement obligation at beginning of      period                                                                                                   |   | $                 | 1,967,200 |   |            | $      | 1,000,000 |   |
| Liabilities/reduction      incurred from drilling      wells                                                                                                   |   |              | (124,300  | )      |            |   | 811,100 |   |
| Accretion      expense                                                                                                                                         |   |              | 27,500    |   |            |   | 59,300 |   |
| Asset      retirement obligation at end of      period                                                                                                         |   | $                 | 1,870,400 |   |            | $      | 1,870,400 |   |

| ITEM      2. | MANAGEMENT'S      DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION OR PLAN OF OPERATIONS      (UNAUDITED) |
|--------------|---------------------------------------------------------------------------------------------------------|

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | Three      Months Ended |   |   | Six      Months Ended |   |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------------|--------|--------|-----------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | June      30,           |   |   | June      30,         |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | 2008                    |   |   | 2008                  |   |
| Production      revenues (in thousands):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   |                    |   |   |                  |   |
| Gas                                                                                                                                          |   | $                       | 7,938  |   |                  | $      | 10,980 |   |
| Oil                                                                                                                                          |   | $                       | 586    |   |                  | $      | 619 |   |
| Total                                                                                                                                        |   | $                       | 8,524  |   |                  | $      | 11,599 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |                    |   |   |                  |   |   |   |
| Production      volumes:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   |                    |   |   |                  |   |   |   |
| Gas      (mcf/day)      (3)                                                                                                                  |   |                    | 8,766  |   |                  |   | 6,398 |   |
| Oil      (bbls/day)      (3)                                                                                                                 |   |                    | 72     |   |                  |   | 38 |   |
| Total      (mcfe/day)      (3)                                                                                                               |   |                    | 9,198  |   |                  |   | 6,626 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |                    |   |   |                  |   |   |   |
| Average      sales prices:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |                    |   |   |                  |   |   |   |
| Gas      (per mcf) (1)      (3)                                                                                                              |   | $                       | 9.95   |   |                  | $      | 9.43 |   |
| Oil      (per bbl) (2)      (3)                                                                                                              |   | $                       | 90.11  |   |                  | $      | 90.22 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |                    |   |   |                  |   |   |   |
| Average      production costs:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |   |                    |   |   |                  |   |   |   |
| As      a percent of      revenues                                                                                                           |   |                    | 23     | %      |                  |   | 22 | % |
| Per      mcfe      (3)                                                                                                                       |   | $                       | 2.35   |   |                  | $      | 2.07 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |                    |   |   |                  |   |   |   |
| Depletion      per      mcfe                                                                                        |   | $                       | 5.38   |   |                  | $      | 5.34 |   |

| (1)   | The      average sales price per mcf before the effects of hedging was $10.16 and      $9.47 for the three months and six months ended June 30, 2008,      respectively. |
|-----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (2)   | The      average sales price per bbl before the effects of hedging was $108.66 and      $90.89 for the three months and six months ended June 30, 2008,      respectively. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (3)   | “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 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:  August      12, 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:  August      12, 2008                                                                                                                                                                           |   | By:/s/ Freddie M.      Kotek |
|                                                                                                                                                                                                            |   | Freddie      M. Kotek, Chairman of the Board of Directors, Chief    Executive |
|                                                                                                                                                                                                            |   | Officer      and President |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
| Date:  August      12, 2008                                                                                                                                                                           |   | By:/s/ Matthew A.      Jones |
|                                                                                                                                                                                                            |   | Matthew      A. Jones, Chief Financial Officer |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
| Date:  August      12, 2008                                                                                                                                                                           |   | By:/s/ Nancy J.      McGurk |
|                                                                                                                                                                                                            |   | Nancy      J. McGurk, Vice President, Chief Accounting Officer |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |
|                                                                                                                                                                                                            |   |   |