##### Table of Contents



United States
Securities and Exchange Commission
 Washington, D.C. 20549
 Form 10-Q
  þ
    
    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934
 For the quarterly period ended June 30, 2010
 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 000-51944
 ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
  Delaware
    
    20-3208344(State or other jurisdiction of 
incorporation or organization)
    
    (I.R.S. Employer
Identification No.)Westpointe Corporate Center One 
1550 Coraopolis Heights Rd. 2nd Floor 
Moon Township, PA
(Address of principal executive offices)
    
    15108
(zip code)
 (412) 262-2830
 þ o
 o o
  Large accelerated filer o
Accelerated filer o
Non-accelerated filer o(Do not check if a smaller reporting company)
Smaller reporting company þ o þ




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##### 



ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
(A Delaware Limited Partnership)
INDEX TO QUARTERLY REPORT
ON FORM 10-Q
 PAGEPART I. FINANCIAL INFORMATIONItem 1: Financial Statements
    
    3Balance Sheets as of June 30, 2010 and December 31, 2009
    
    3Statements of Operations for the Three Months and Six Months ended June 30, 2010 and 2009
    
    4Statement of Changes in Partners Capital for the Six Months ended June 30, 2010
    
    5Statements of Cash Flows for the Six Months ended June 30, 2010 and 2009
    
    6Notes to Financial Statements
    
    7-17Item 2: Managements Discussion and Analysis of Financial Condition and Results of Operations
    
    17-21Item 4: Controls and Procedures
    
    21PART II. OTHER INFORMATIONItem 1: Legal Proceedings
    
    21Item 6: Exhibits
    
    21SIGNATURES
    
    22CERTIFICATIONSExhibit 31.1Exhibit 31.2Exhibit 32.1Exhibit 32.2
   2




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PART 1. FINANCIAL INFORMATION
 
 ITEM 1. FINANCIAL STATEMENTS
 
 ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
BALANCE SHEETS
 June 30,
    
    
    December 31,2010
    
    
    2009(Unaudited)ASSETSCurrent assets:Cash and cash equivalents
    
    $
    
    
    
    $
    161,500Accounts receivable-affiliate
    
    
    823,500
    
    
    
    754,000Short-term hedge receivable due from affiliate
    
    
    607,900
    
    
    
    508,000Total current assets
    
    
    1,431,400
    
    
    
    1,423,500Oil and gas properties, net
    
    
    15,933,500
    
    
    
    17,108,600Long-term hedge receivable due from affiliate
    
    
    789,000
    
    
    
    417,700$
    18,153,900
    
    
    $
    18,949,800LIABILITIES AND PARTNERS CAPITALCurrent liabilities:Accrued liabilities
    
    $
    58,200
    
    
    $
    60,200Short-term hedge liability due to affiliate
    
    
    10,500
    
    
    
    6,100Total current liabilities
    
    
    68,700
    
    
    
    66,300Asset retirement obligation
    
    
    2,019,800
    
    
    
    1,961,000Long-term hedge liability due to affiliate
    
    
    251,700
    
    
    
    64,400Partners capital:Managing general partner
    
    
    4,186,200
    
    
    
    4,575,900Limited partners (5,227.40 units)
    
    
    11,182,600
    
    
    
    12,378,400Accumulated other comprehensive income (loss)
    
    
    444,900
    
    
    
    (96,200
    )Total partners capital
    
    
    15,813,700
    
    
    
    16,858,100$
    18,153,900
    
    
    $
    18,949,800
   3




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
STATEMENTS OF OPERATIONS
(Unaudited)
 Three Months Ended
    
    
    Six Months EndedJune 30,
    
    
    June 30,2010
    
    
    2009
    
    
    2010
    
    
    2009REVENUESNatural gas and oil
    
    $
    627,700
    
    
    $
    579,200
    
    
    $
    1,501,100
    
    
    $
    1,511,300Interest income
    
    
    
    
    
    
    100
    
    
    
    100
    
    
    
    300Total revenues
    
    
    627,700
    
    
    
    579,300
    
    
    
    1,501,200
    
    
    
    1,511,600COSTS AND EXPENSESProduction
    
    
    339,800
    
    
    
    349,500
    
    
    
    679,300
    
    
    
    737,700Depletion
    
    
    503,100
    
    
    
    306,300
    
    
    
    1,175,100
    
    
    
    639,700Accretion of asset retirement obligation
    
    
    29,400
    
    
    
    24,900
    
    
    
    58,800
    
    
    
    49,800General and administrative
    
    
    57,600
    
    
    
    58,700
    
    
    
    116,100
    
    
    
    114,600Total expenses
    
    
    929,900
    
    
    
    739,400
    
    
    
    2,029,300
    
    
    
    1,541,800Net loss
    
    $
    (302,200
    )
    
    $
    (160,100
    )
    
    $
    (528,100
    )
    
    $
    (30,200
    )Allocation of net (loss) earnings:Managing general partner
    
    $
    (19,700
    )
    
    $
    (1,700
    )
    
    $
    13,600
    
    
    $
    103,200Limited partners
    
    $
    (282,500
    )
    
    $
    (158,400
    )
    
    $
    (541,700
    )
    
    $
    (133,400
    )Net loss per limited partnership unit
    
    $
    (54
    )
    
    $
    (30
    )
    
    $
    (104
    )
    
    $
    (25
    )
   4




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
STATEMENT OF CHANGES IN PARTNERS CAPITAL
FOR THE SIX MONTHS ENDED
June 30, 2010
(Unaudited)
 AccumulatedManaging
    
    
    
    
    
    
    OtherGeneral
    
    
    Limited
    
    
    ComprehensivePartner
    
    
    Partners
    
    
    (Loss) Income
    
    
    TotalBalance at January 1, 2010
    
    $
    4,575,900
    
    
    $
    12,378,400
    
    
    $
    (96,200
    )
    
    $
    16,858,100Participation in revenues and expenses:Net production revenues
    
    
    275,300
    
    
    
    546,500
    
    
    
    
    
    
    
    821,800Interest income
    
    
    
    
    
    
    100
    
    
    
    
    
    
    
    100Depletion
    
    
    (203,100
    )
    
    
    (972,000
    )
    
    
    
    
    
    
    (1,175,100
    )Accretion of asset retirement obligation
    
    
    (19,700
    )
    
    
    (39,100
    )
    
    
    
    
    
    
    (58,800
    )General and administrative
    
    
    (38,900
    )
    
    
    (77,200
    )
    
    
    
    
    
    
    (116,100
    )Net earnings (loss)
    
    
    13,600
    
    
    
    (541,700
    )
    
    
    
    
    
    
    (528,100
    )Other comprehensive income
    
    
    
    
    
    
    
    
    
    
    541,100
    
    
    
    541,100Subordination
    
    
    (167,700
    )
    
    
    167,700
    
    
    
    
    
    
    
    Distributions to partners
    
    
    (235,600
    )
    
    
    (821,800
    )
    
    
    
    
    
    
    (1,057,400
    )Balance at June 30, 2010
    
    $
    4,186,200
    
    
    $
    11,182,600
    
    
    $
    444,900
    
    
    $
    15,813,700
   5




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
STATEMENTS OF CASH FLOWS
(Unaudited)
 Six Months EndedJune 30,2010
    
    
    2009Cash flows from operating activities:Net loss
    
    $
    (528,100
    )
    
    $
    (30,200
    )Adjustments to reconcile net loss to net cash provided by operating activities:Depletion
    
    
    1,175,100
    
    
    
    639,700Non-cash loss on derivative value
    
    
    261,600
    
    
    
    901,300Accretion of asset retirement obligation
    
    
    58,800
    
    
    
    49,800(Increase) decrease in accounts receivable-affiliate
    
    
    (69,500
    )
    
    
    662,300Decrease in accrued liabilities
    
    
    (2,000
    )
    
    
    (4,800
    )Net cash provided by operating activities
    
    
    895,900
    
    
    
    2,218,100Cash flows from financing activities:Distributions to partners
    
    
    (1,057,400
    )
    
    
    (2,404,100
    )Net cash used in financing activities
    
    
    (1,057,400
    )
    
    
    (2,404,100
    )Net decrease in cash and cash equivalents
    
    
    (161,500
    )
    
    
    (186,000
    )Cash and cash equivalents at beginning of period
    
    
    161,500
    
    
    
    464,500Cash and cash equivalents at end of period
    
    $
    
    
    
    $
    278,500
   6




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS
June 30, 2010
(Unaudited)
 NOTE 1  BASIS OF PRESENTATION
   NOTE 2  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 Use of Estimates
   Fair Value of Financial Instruments
   7




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS (Continued)
June 30, 2010
(Unaudited)
 NOTE 2  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)
 Oil and Gas Properties
   Impairment of Long-Lived Assets
      8




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS (Continued)
June 30, 2010
(Unaudited)
 NOTE 2  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)
 Working Interest
  Revenue Recognition
   Comprehensive Income (Loss)
   9




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS (Continued)
June 30, 2010
(Unaudited)
 NOTE 2  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)
 Comprehensive Income (Loss) (Continued)
 Three Months Ended
    
    
    Six Months EndedJune 30,
    
    
    June 30,2010
    
    
    2009
    
    
    2010
    
    
    2009Net loss
    
    $
    (302,200
    )
    
    $
    (160,100
    )
    
    $
    (528,100
    )
    
    $
    (30,200
    )Other comprehensive income (loss):Unrealized holding gain (loss)
on hedging contracts
    
    
    590,800
    
    
    
    (41,000
    )
    
    
    716,100
    
    
    
    (413,600
    )Less: reclassification
adjustment for losses (gains)
realized in net earnings
    
    
    (49,700
    )
    
    
    36,400
    
    
    
    (175,000
    )
    
    
    142,500Total other comprehensive income (loss)
    
    
    541,100
    
    
    
    (4,600
    )
    
    
    541,100
    
    
    
    (271,100
    )Comprehensive income (loss)
    
    $
    238,900
    
    
    $
    (164,700
    )
    
    $
    13,000
    
    
    $
    (301,300
    )
 Recently Adopted Accounting Standards
     10




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS (Continued)
June 30, 2010
(Unaudited)
 NOTE 2  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)
 Recently Issued Accounting Standards
  NOTE 3  OIL AND GAS PROPERTIES
  June 30,
    
    
    December 31,2010
    
    
    2009Natural gas and oil properties:Proved properties:Leasehold interests
    
    $
    1,526,600
    
    
    $
    1,526,600Wells and related equipment
    
    
    64,512,600
    
    
    
    64,512,60066,039,200
    
    
    
    66,039,200Accumulated depletion
    
    
    (50,105,700
    )
    
    
    (48,930,600
    )$
    15,933,500
    
    
    $
    17,108,600
 NOTE 4  ASSET RETIREMENT OBLIGATIONS
    11




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS (Continued)
June 30, 2010
(Unaudited)
 NOTE 4  ASSET RETIREMENT OBLIGATIONS (Continued)
  Three Months Ended
    
    
    Six Months EndedJune 30,
    
    
    June 30,2010
    
    
    2009
    
    
    2010
    
    
    2009Asset retirement obligation at beginning of
period
    
    $
    1,990,400
    
    
    $
    1,684,300
    
    
    $
    1,961,000
    
    
    $
    1,659,400Accretion expense
    
    
    29,400
    
    
    
    24,900
    
    
    
    58,800
    
    
    
    49,800Asset retirement obligation at end of period
    
    $
    2,019,800
    
    
    $
    1,709,200
    
    
    $
    2,019,800
    
    
    $
    1,709,200
 NOTE 5  DERIVATIVE INSTRUMENTS
     12




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS (Continued)
June 30, 2010
(Unaudited)
 NOTE 5  DERIVATIVE INSTRUMENTS (Continued)
  Fair Value of Derivative Instruments:
 Asset Derivatives
    
    
    Liability DerivativesDerivatives in
    
    
    
    
    
    Fair Value
    
    
    
    
    
    
    Fair ValueCash Flow
    
    Balance Sheet
    
    
    June 30,
    
    
    December 31,
    
    
    Balance Sheet
    
    
    June 30,
    
    
    December 31,Hedging Relationships
    
    Location
    
    
    2010
    
    
    2009
    
    
    Location
    
    
    2010
    
    
    2009Commodity contracts:
    
    Current assets
    
    $
    607,900
    
    
    $
    508,000
    
    
    Current liabilities
    
    $
    (10,500
    )
    
    $
    (6,100
    )Long-term assets
    
    
    789,000
    
    
    
    417,700
    
    
    Long-term liabilities
    
    
    (251,700
    )
    
    
    (64,400
    )Total derivatives
    
    
    
    
    
    $
    1,396,900
    
    
    $
    925,700
    
    
    
    
    
    
    $
    (262,200
    )
    
    $
    (70,500
    )
 Effects of Derivative Instruments on Statements of Operations:
 Gain/(Loss)
    
    
    
    
    
    
    Gain/(Loss)Recognized in OCI on Derivative
    
    
    
    
    
    
    Reclassified from OCI into Income(Effective Portion)
    
    
    Location of Gain/(Loss)
    
    
    (Effective Portion)Derivatives in
    
    Three Months Ended
    
    
    Reclassified from Accumulated
    
    
    Three Months EndedCash Flow
    
    June 30,
    
    
    June 30,
    
    
    OCI into Income
    
    
    June 30,
    
    
    June 30,Hedging Relationship
    
    2010
    
    
    2009
    
    
    (Effective Portion)
    
    
    2010
    
    
    2009Commodity contracts
    
    $
    590,800
    
    
    $
    (41,000
    )
    
    Natural gas and oil revenue
    
    $
    49,700
    
    
    $
    (36,400
    )Gain/(Loss)
    
    
    
    
    
    
    Gain/(Loss)Recognized in OCI on Derivative
    
    
    
    
    
    
    Reclassified from OCI into Income(Effective Portion)
    
    
    Location of Gain/(Loss)
    
    
    (Effective Portion)Derivatives in
    
    Six Months Ended
    
    
    Reclassified from Accumulated
    
    
    Six Months EndedCash Flow
    
    June 30,
    
    
    June 30,
    
    
    OCI into Income
    
    
    June 30,
    
    
    June 30,Hedging Relationship
    
    2010
    
    
    2009
    
    
    (Effective Portion)
    
    
    2010
    
    
    2009Commodity contracts
    
    $
    716,100
    
    
    $
    (413,600
    )
    
    Natural gas and oil revenue
    
    $
    175,000
    
    
    $
    (142,500
    )
   13




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS (Continued)
June 30, 2010
(Unaudited)
 NOTE 5  DERIVATIVE INSTRUMENTS (Continued)
 Natural Gas Fixed Price Swaps
 Production
    
    
    
    
    
    
    
    
    
    AveragePeriod Ending
    
    
    
    
    
    Volumes
    
    
    Fixed Price
    
    
    Fair ValueDecember 31,
    
    
    
    
    
    (MMbtu)(1)
    
    
    (per MMbtu)(1)
    
    
    Asset(2)2010
    
    
    
    
    
    
    139,600
    
    
    $
    7.238
    
    
    $
    336,2002011
    
    
    
    
    
    
    190,600
    
    
    
    6.839
    
    
    
    284,3002012
    
    
    
    
    
    
    127,800
    
    
    
    7.165
    
    
    
    186,2002013
    
    
    
    
    
    
    72,000
    
    
    
    7.011
    
    
    
    77,4002014
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    $
    884,100
 Natural Gas Costless Collars
 Production
    
    
    
    
    
    
    
    
    
    AveragePeriod Ending
    
    Option
    
    Volumes
    
    
    Floor & Cap
    
    
    Fair ValueDecember 31,
    
    Type
    
    (MMbtu)(1)
    
    
    (per MMbtu)(1)
    
    
    Asset (Liability)(2)2010
    
    Puts purchased
    
    
    18,800
    
    
    $
    6.123
    
    
    $
    31,7002010
    
    Calls sold
    
    
    18,800
    
    
    
    7.327
    
    
    
    (2,700
    )2011
    
    Puts purchased
    
    
    88,000
    
    
    
    6.435
    
    
    
    141,3002011
    
    Calls sold
    
    
    88,000
    
    
    
    7.545
    
    
    
    (26,000
    )2012
    
    Puts purchased
    
    
    79,400
    
    
    
    6.012
    
    
    
    116,9002012
    
    Calls sold
    
    
    79,400
    
    
    
    7.181
    
    
    
    (65,700
    )2013
    
    Puts purchased
    
    
    92,700
    
    
    
    6.010
    
    
    
    154,5002013
    
    Calls sold
    
    
    92,700
    
    
    
    7.173
    
    
    
    (112,300
    )2014
    
    Puts purchased
    
    
    32,200
    
    
    
    5.860
    
    
    
    54,0002014
    
    Calls sold
    
    
    32,200
    
    
    
    6.961
    
    
    
    (50,700
    )$
    241,000
 Crude Oil Fixed Price Swaps
 Production
    
    
    
    
    
    
    
    
    
    AveragePeriod Ending
    
    
    
    
    
    Volumes
    
    
    Fixed Price
    
    
    Fair ValueDecember 31,
    
    
    
    
    
    (Bbl)(1)
    
    
    (per Bbl)(1)
    
    
    Asset(3)2010
    
    
    
    
    
    
    200
    
    
    $
    97.123
    
    
    $
    3,3002011
    
    
    
    
    
    
    200
    
    
    
    88.304
    
    
    
    2,2002012
    
    
    
    
    
    
    200
    
    
    
    87.901
    
    
    
    1,2002013
    
    
    
    
    
    
    100
    
    
    
    88.211
    
    
    
    3002014
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    $
    7,000
  14




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS (Continued)
June 30, 2010
(Unaudited)
 NOTE 5  DERIVATIVE INSTRUMENTS (Continued)
 Crude Oil Costless Collars
 Production
    
    
    
    
    
    
    
    AveragePeriod Ending
    
    Option
    
    Volumes
    
    
    Floor & Cap
    
    
    Fair ValueDecember 31,
    
    Type
    
    (Bbl)(1)
    
    
    (per Bbl)(1)
    
    
    Asset (Liability)(3)2010
    
    Puts purchased
    
    
    100
    
    
    $
    85.000
    
    
    $
    1,0002010
    
    Calls sold
    
    
    100
    
    
    
    112.350
    
    
    
    (50
    )2011
    
    Puts purchased
    
    
    200
    
    
    
    77.381
    
    
    
    1,5002011
    
    Calls sold
    
    
    200
    
    
    
    101.642
    
    
    
    (600
    )2012
    
    Puts purchased
    
    
    100
    
    
    
    76.756
    
    
    
    1,4002012
    
    Calls sold
    
    
    100
    
    
    
    102.181
    
    
    
    (850
    )2013
    
    Puts purchased
    
    
    50
    
    
    
    76.757
    
    
    
    5002013
    
    Calls sold
    
    
    50
    
    
    
    103.103
    
    
    
    (300
    )2014
    
    Puts purchased
    
    
    
    
    
    
    
    
    
    
    2014
    
    Calls sold
    
    
    
    
    
    
    
    
    
    
    $
    2,600Total Net Aset
    
    $
    1,134,700
 
 (1)
    
    MMBTU represents million British Thermal Units. Bbl represents barrels.(2)
    
    Fair value based on forward NYMEX natural gas prices, as applicable.(3)
    
    Fair value based on forward WTI crude oil prices, as applicable. NOTE 6  FAIR VALUE OF FINANCIAL INSTRUMENTS
  Level 1 
 Level 2 
 Level 3 
  15




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ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS (Continued)
June 30, 2010
(Unaudited)
 NOTE 6  FAIR VALUE OF FINANCIAL INSTRUMENTS (Continued)
 Assets and Liabilities Measured at Fair Value on a Recurring Basis
  Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis
  NOTE 7  CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS
 
    
    Administrative costs which are included in general and administrative expenses in the
Partnerships statements of operations are payable at $75 per well per month.
Administrative costs incurred for the three and six months ended June 30, 2010 were
$37,400 and $75,400, respectively. Administrative costs incurred for the three and six
months ended June 30, 2009 were $39,500 and $79,100, respectively.
    
    Monthly well supervision fees which are included in production expenses in the
Partnerships statements of operations are payable at $296 per well per month in 2010
and 2009, respectively, for operating and maintaining the wells. Well supervision fees
incurred for the three and six months ended June 30, 2010 were $147,700 and $297,800,
respectively. Well supervision fees incurred for the three and six months ended June 30,
2009 were $156,300 and $312,600, respectively.
    
    Transportation fees which are included in production expenses in the Partnerships
statements of operations are generally payable at 13% of the natural gas sales price.
Transportation fees incurred for the three and six months ended June 30, 2010 were
$96,900 and $215,500, respectively. Transportation fees incurred for the three and six
months ended June 30, 2009 were $125,100 and $288,700, respectively.
  Subordination by Managing General Partner
   16




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##### Table of Contents



ATLAS AMERICA PUBLIC #15-2005 (A) L.P.
NOTES TO FINANCIAL STATEMENTS (Continued)
June 30, 2010
(Unaudited)
 NOTE 8  COMMITMENTS AND CONTINGENCIES
 Legal Proceedings
   
 ITEM 2.
    
    MANAGEMENTS DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
RESULTS OF OPERATIONS (UNAUDITED)
 Forward-Looking Statements
 When used in this Form 10-Q , the words believes, anticipates, expects and similar
expressions are intended to identify forward-looking statements. There are risks and uncertainties
that could cause actual results to differ materially from the results stated or implied in this
document. Readers are cautioned not to place undue reliance on these forward-looking statements,
which speak only as of the date hereof. We undertake no obligation to publicly release the results
of any revisions to forward-looking statements which we may make to reflect events or circumstances
after the date of this Form 10-Q or to reflect the occurrence of unanticipated events.
 BUSINESS OVERVIEW
    17




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##### Table of Contents



Results of Operations
  Three Months Ended
    
    
    Six Months EndedJune 30,
    
    
    June 30,2010
    
    
    2009
    
    
    2010
    
    
    2009Production revenues (in thousands):Gas
    
    $
    606
    
    
    $
    575
    
    
    $
    1,455
    
    
    $
    1,490Oil
    
    
    22
    
    
    
    4
    
    
    
    46
    
    
    
    21Total
    
    $
    628
    
    
    $
    579
    
    
    $
    1,501
    
    
    $
    1,511Production volumes:Gas (mcf/day) (1)
    
    
    1,151
    
    
    
    1,440
    
    
    
    1,354
    
    
    
    1,508Oil (bbls/day) (1)
    
    
    4
    
    
    
    3
    
    
    
    4
    
    
    
    4Total (mcfe/day) (1)
    
    
    1,175
    
    
    
    1,458
    
    
    
    1,378
    
    
    
    1,532Average sales prices: (2)Gas (per mcf) (1) (3)
    
    $
    7.36
    
    
    $
    7.90
    
    
    $
    6.97
    
    
    $
    8.70Oil (per bbl) (1) (4)
    
    $
    76.95
    
    
    $
    41.74
    
    
    $
    73.41
    
    
    $
    52.50Average production costs:As a percent of revenues
    
    
    54
    %
    
    
    60
    %
    
    
    45
    %
    
    
    49
    %Per mcfe (1)
    
    $
    3.18
    
    
    $
    2.63
    
    
    $
    2.72
    
    
    $
    2.66Depletion per mcfe
    
    $
    4.71
    
    
    $
    2.31
    
    
    $
    4.71
    
    
    $
    2.31
 
 (1)
    
    Mcf represents thousand cubic feet, mcfe represents thousand cubic feet
equivalent, and bbls represents barrels. Bbls are converted to mcfe using the ratio
of six mcfs to one bbl.(2)
    
    Average sales prices represent accrual basis pricing after reversing the effect
of previously recognized gains resulting from prior period impairment charges.(3)
    
    Average gas prices are calculated by including in total revenue derivative gains
previously recognized into income and dividing by the total volume for the period.
Previously recognized derivative gains were $165,100 and $459,900 for the three months
ended June 30, 2010 and 2009, respectively.
Previously recognized derivative gains were $252,600 and $883,700 for the six months
ended June 30, 2010 and 2009, respectively. The derivative gains are included in
other comprehensive income and resulted from prior period impairment charges.(4)
    
    Average oil prices are calculated by including in total revenue derivative gains
previously recognized into income and dividing by the total volume for the period.
Previously recognized derivative gains were $5,100 and $8,400 for the three months
ended June 30, 2010 and 2009, respectively.
Previously recognized derivative gains were $9,000 and $17,600 for the six months
ended June 30, 2010 and 2009, respectively. The derivative gains are included in
other comprehensive income and resulted from prior period impairment charges.  18




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##### Table of Contents



Natural Gas Revenues.
  Oil Revenues.
  Expenses.
   Liquidity and Capital Resources
   19




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##### Table of Contents



Subordination by Managing General Partner
  CRITICAL ACCOUNTING POLICIES AND ESTIMATES
  Fair Value of Financial Instruments
  Level 1 
 Level 2 
 Level 3 
  20




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##### Table of Contents



ITEM 4.
    
    CONTROLS AND PROCEDURES
    
 PART II. OTHER INFORMATION
 
 ITEM 1.
    
    LEGAL PROCEEDINGS
   
 ITEM 6.
    
    EXHIBITS
 EXHIBIT INDEX
 Exhibit No.
    
    Description4.0
    
    Amended and Restated Certificate and Agreement of Limited Partnership for Public #15-2005 (A) L.P. (1)10.1
    
    Drilling and Operating Agreement for Atlas America Public #15-2005 (A) L.P. (1)31.1
    
    Rule 13a-14(a)/15d-14(a) Certification.31.2
    
    Rule 13a-14(a)/15d-14(a) Certification.32.1
    
    Section 1350 Certification.32.2
    
    Section 1350 Certification.
 
 (1)
    
    Filed on August 9, 2005 in the Form S-1 Registration Statement dated August 9, 2005, File No. 000-51944  21




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##### Table of Contents



SIGNATURES
   Atlas America Public #15-2005
(A) L.P.Atlas Resources, LLC, Managing General PartnerDate:  August 16, 2010
    By:

/s/
FREDDIE M. KOTEKFreddie M. KotekChairman of the Board of Directors
Chief Executive Officer and PresidentDate:  August 16, 2010
    By:

/s/
MATTHEW A. JONESMatthew A. JonesChief Financial Officer Supplemental information to be furnished with reports filed pursuant to Section 15(d) of the
Exchange Act by Non-reporting Issuers
   22