|                                                                                                                                                                                                                                                                                                                                                                                                    | United      States                                                                                  |                                           |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------|------------------------------------------------|
|                                                                                                                                                                                                                                                                                                                                                                                                    | Securities      and Exchange Commission                                                             |                                           |
|                                                                                                                                                                                                                                                                                                                                                                                                    | Washington,      D.C. 20549                                                                         |                                           |
|                                                                                                                                                                                                                                                                                                                                                                                                    | Form      10-K                                                                                      |                                           |
| (Mark      One)                                                                                                                                                                                                                                                                                                                                                                                         |                                                                                                |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |
| R                                                                                                                                                                                                                                                                                                                                                                                                       | ANNUAL      REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF      1934     |                                           |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |
| For      the fiscal year ended December 31, 2008                                                                                                                                                                                                                                                                                                                                                        |                                                                                                |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |
| o                                                                                                                                                                                                                                                                                                                                                                                                       | TRANSITION      REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF      1934 |                                           |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |
|                                                                                                                                                                                                                                                                                                                                                                                                    | For      the transition period from _____ to _____                                                  |                                           |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |
|                                                                                                                                                                                                                                                                                                                                                                                                    | Commission      file number 0-52615                                                                 |                                           |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |
|                                                                                                                                                                                                                                                                                                                                                                                                    | ATLAS      AMERICA SERIES 27-2006 L.P.                                                              |                                           |
|                                                                                                                                                                                                                                                                                                                                                                                                    | (Exact      name of registrant as specified in its charter)                                         |                                           |
| Delaware                                                                                                                                                                                                                                                                                                                                                                                                |                                                                                                | 20-5242075                                     |   |
| (State      or other jurisdiction of                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                | (I.R.S.      Employer                          |   |
| Incorporation      or organization)                                                                                                                                                                                                                                                                                                                                                                     |                                                                                                | Identification      No)                        |   |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |   |
| Westpointe      Corporate Center One                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |   |
| 1550      Coraopolis Heights Road, 2nd Floor                                                                                                                                                                                                                                                                                                                                                            |                                                                                                |                                           |   |
| Moon      Township, PA                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                | 15108                                          |   |
| (Address      of principal executive offices)                                                                                                                                                                                                                                                                                                                                                           |                                                                                                | (Zip      Code)                                |   |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |   |
| Registrant’s      telephone number (412)      262-2830                                                                                                                                                                                                                                                                                                                                            |                                                                                                |                                           |   |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |   |
| Securities      registered under Section 12(b) of the Exchange Act.                                                                                                                                                                                                                                                                                                                                     |                                                                                                |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |   |
| Title      of each class                                                                                                                                                                                                                                                                                                                                                                                |                                                                                                | Name      of each exchange on which registered |   |
| None                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                | None                                           |   |
|                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                |                                           |   |
| Securities      registered under Section 12 (g) of the Exchange Act:  Investor      General Partner Units and Limited Partner Units                                                                                                                                                                                                                                                           |                                                                                                |
| (Title      of Class)                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                |
|                                                                                                                                                                                                                                                                                                                                                                                                    |
| Indicate      by check mark if the registrant is a well-known seasoned issuer, as      defined in Rule 405 of the Securities      Act.     Yes  ̈ No þ                                                                                                                                                                                                                |
|                                                                                                                                                                                                                                                                                                                                                                                                    |
| Indicate      by check mark if the registrant is not required to file reports pursuant      to Section 13 or Section 15 (d) of the Act. Yes  ̈ No þ                                                                                                                                                                                                                                            |
|                                                                                                                                                                                                                                                                                                                                                                                                    |
| Indicate      by check mark whether the registrant (1) has filed all reports required to      be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934      during the preceding 12 months (or for such shorter period that the      registrant was required to file such reports), and (2) has been subject to      such filing requirements for the past 90 days, Yes þ No  ̈ |
|                                                                                                                                                                                                                                                                                                                                                                                                    |
| Indicate      by check mark if disclosure of delinquent filers pursuant to Item 405 of      Regulation S-K is not contained herein, and will not be contained, to the      best of registrant’s knowledge, in definitive proxy or information      statements incorporated by reference in Part III of this Form 10-K or any      amendment to this form 10-K þ                              |
|                                                                                                                                                                                                                                                                                                                                                                                                    |
| Indicate      by check mark whether the registrant is a large accelerated filer, an      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 þ                                                                                                                                                                                                                              |
|                                                                                                                                                                                                                                                                                                                                                                                                    |
| Indicate      by check mark whether the registrant is a shell company (as defined in      Rule 12b-2 of the Act). Yes  ̈ No þ                                                                                                                                                                                                                                                                  |
|                                                                                                                                                                                                                                                                                                                                                                                                    |
| DOCUMENTS      INCORPORATED BYREFERENCE:  None                                                                                                                                                                                                                                                                                                                                                |

| PART      I   |   |                                                                                              | PAGE   |
|---------------|--------|---------------------------------------------------------------------------------------------------|--------|
|          |   |                                                                                              |   |
| Item      1:  |   | Description      of Business                                                                      | 3-5    |
|          |   |                                                                                              |   |
| Item      2:  |   | Description      of Properties                                                                    | 5-9    |
|          |   |                                                                                              |   |
| Item      3:  |   | Legal      Proceedings                                                                            | 9      |
|          |   |                                                                                              |   |
| Item      4:  |   | Submission      of Matters to a Vote of Security Holders                                          | 9      |
|          |   |                                                                                              |   |
| PART      II  |   |                                                                                              |   |
|          |   |                                                                                              |   |
| Item      5:  |   | Market      for Registrant’s Common Equity and Related Security Holder      Matters         | 9-10   |
|          |   |                                                                                              |   |
| Item      7:  |   | Management’s      Discussion and Analysis of Financial Condition or Plan of      Operations | 10-18  |
|          |   |                                                                                              |   |
| Item      8:  |   | Financial      Statements                                                                         | 19-36  |
|          |   |                                                                                              |   |
| Item      9:  |   | Changes      in and Disagreements with Accountants on Accounting and Financial      Disclosure    | 37     |
|          |   |                                                                                              |   |
| Item      9A: |   | Controls      and Procedures                                                                      | 37     |
|          |   |                                                                                              |   |
| Item      9B: |   | Other      Information                                                                            | 38     |
|          |   |                                                                                              |   |
| PART      III |   |                                                                                              |   |
|          |   |                                                                                              |   |
| Item      10: |   | Directors,      Executive Officers and Corporate Governance                                       | 38-40  |
|          |   |                                                                                              |   |
| Item      11: |   | Executive      Compensation                                                                       | 40     |
|          |   |                                                                                              |   |
| Item      12: |   | Security      Ownership of Certain Beneficial Owners and Management                               | 40-41  |
|          |   |                                                                                              |   |
| Item      13: |   | Certain      Relationships and Related Transactions, and Director      Independence               | 41     |
|          |   |                                                                                              |   |
| Item      14: |   | Principal      Accountant Fees and Services                                                       | 42     |
|          |   |                                                                                              |   |
| PART      IV  |   |                                                                                              |   |
|          |   |                                                                                              |   |
| Item      15: |   | Exhibits                                                                                          | 42     |
|          |   |                                                                                              |   |
|          |   |                                                                                              |   |
|          |   |                                                                                              |   |
| SIGNATURES    | 43     |

| ·   | well      tending, routine maintenance andadjustment; |
|--------------------|-------------------------------------------------------|

| ·   | reading      meters, recording production, pumping, maintaining appropriate books and      records; and |
|--------------------|---------------------------------------------------------------------------------------------------------|

| ·   | preparing      reports to us and to governmentagencies. |
|--------------------|---------------------------------------------------------|

| ·   | new      well permit and well registration requirements, procedures and      fees; |
|--------------------|------------------------------------------------------------------------------------|

| ·   | minimum      well spacing requirements; |
|--------------------|-----------------------------------------|

| ·   | restriction      on well locations and underground gasstorage; |
|--------------------|----------------------------------------------------------------|

| ·   | certain      well site restoration, groundwater protection and safety      measures; |
|--------------------|--------------------------------------------------------------------------------------|

| ·   | landowner      notification requirements; |
|--------------------|-------------------------------------------|

| ·   | certain      bonding or other security measures; |
|--------------------|--------------------------------------------------|

| ·   | various      reporting requirements; |
|--------------------|--------------------------------------|

| ·   | well      plugging standards and procedures;and |
|--------------------|-------------------------------------------------|

| ·   | broad      enforcement powers. |
|--------------------|--------------------------------|

|                          |   | Development      Wells |   |
|-------------------------------|--------|------------------------|--------|
| Years      Ended December 31, |   | Productive      (1)    |   |   | Dry      (2) |   |
|                          |   | Gross      (3)         |   |   | Net      (4) |   |   | Gross      (3) |   |   | Net      (4) |   |
| 2007                          |   |                   | 248.00 |   |   |   | 198.12 |   |   |   | 2.00 |   |   |   | 1.25 |   |
| 2006                          |   |                   | 6.00   |   |   |   | 6.00 |   |   |   | — |   |   |   | — |   |
|                          |   |                   | 254.00 |   |   |   | 204.12 |   |   |   | 2.00 |   |   |   | 1.25 |   |

| (1)   | A      “productive well” generally means a well that is not a dry      hole. |
|-----------------|------------------------------------------------------------------------------------------|

| (2)   | A      “dry hole” generally means a well found to be incapable of producing      either oil or gas in sufficient quantities to justify completion as an oil      or gas well. The term “completion” refers either to the installation of      permanent equipment for the production of oil or gas or, in the case of a      dry hole, to the reporting of the abandonment of the well to the      appropriate regulatory agency. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (3)   | A      “gross” well is a well in which we have a working  interest. |
|-----------------|---------------------------------------------------------------------------------|

| (4)   | A      “net” well equals the actual working interest we own in one gross well      divided by one hundred. For example, a 50% working interest in a well is      one gross well, but a 0.5 netwell. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |   | Number      of Producing Wells |   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------------------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |   | Gross                          |   |   | Net |   |
| Gas                                                                                                       |   |                           | 254    |   |   |   | 204.12 |   |

|              |   |                     |   |   |                     |   |      | Average             |   |
|-------------------|--------|--------------------------|--------|--------|--------------------------|--------|-----------|---------------------|--------|
| Year              |   |                     |   |   |                     |   |      |                |   |   |   |   |   | Production      Cost |   |
| Ended             |   | Production               |   |   | Average      Sales Price |   |      | (Lifting      Cost) |   |
| December      31, |   | Oil      (bbls)      (1) |   |   | Gas      (mcf) (1)       |   |      | per      bbl (1)    |   |   | per      mcf (1) |   |   | per      mcfe (1)      (2) |   |
| 2008              |   |                     | 3,600  |   |                     |   | 1,336,900 |                |   | $ | 93.76 |   |   |   | 9.19 |   |   | $ | 2.07 |   |
| 2007              |   |                     | 3,200  |   |                     |   | 1,446,600 |                |   | $ | 66.93 |   |   | $ | 8.47 |   |   | $ | 1.68 |   |

| (1)   | “Mcf”      means one thousand cubic feet of natural gas.  “Mcfe” means a      thousand cubic feet equivalent.  Oil production is converted to      mcfe at the rate of six mcf per barrel(“bbl”). |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (2)   | Lifting      costs include labor to operate the wells and related equipment, repairs      and maintenance, materials and supplies, property taxes, insurance and      gathering charges. |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                                                                                                                                                                                                                                                               |   | December      31, |   |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------|--------|
|                                                                                                                                                                                                                                                               |   | 2008              |   |   | 2007 |   |
| Natural      gas (per mcf)                                                                                                                                                                                                                                         |   | $                 | 6.21   |   |   | $ | 7.35 |   |
| Oil      ( per      bbl)                                        |   |              | 36.27  |   |   |   | 88.47 |   |

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | At      December 31, |       |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|----------------------|------------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | 2008                 |       |   | 2007 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                 |       |   |   |   |
| Natural      gas reserves – Proved Reserves (Mcf) (1)(4):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |   |                 |       |   |   |   |
| Proved      developed reserves      (2)                                                                                                                                       |   |                 | 6,919,500  |   |   |   | 10,981,700 |   |
| Total      proved reserves of natural      gas                                                                                                                                                    |   |                 | 6,919,500  |   |   |   | 10,981,700 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                 |       |   |   |   |   |   |
| Oil      reserves – Proved Reserves (Bbl) (1)(4):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |                 |       |   |   |   |   |   |
| Proved      developed reserves      (2)                                                                                                                                       |   |                 | 12,800     |   |   |   | 18,000 |   |
| Total      proved reserves of      oil                                                                                                                                                            |   |                 | 12,800     |   |   |   | 18,000 |   |
| Total      proved reserves      (Mcfe)                                                                                                     |   |                 | 6,996,300  |   |   |   | 11,089,700 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                 |       |   |   |   |   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |                 |       |   |   |   |   |   |
| PV-10      estimate of cash flows of proved reserves (3)(4):                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |                 |       |   |   |   |   |   |
| Proved      developed      reserves                                                                                                                                           |   | $                    | 13,929,200 |   |   | $ | 28,958,000 |   |
| Total      PV-10      estimate                                                                                                                                                                    |   | $                    | 13,929,200 |   |   | $ | 28,958,000 |   |
| PV-10      estimate per investor partner unit      (5)                                                                                     |   | $                    | 3,306      |   |   | $ | 6,872 |   |
| Undiscounted      estimate per investor partner unit (5)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | $                    | 5,485      |   |   | $ | 11,544 |   |

| (1)   | “Proved      reserves” generally means the estimated quantities of crude oil, natural      gas, and natural gas liquids which geological and engineering data      demonstrate with reasonable certainty to be recoverable in future years      from known reservoirs under existing economic and operating conditions,      i.e., prices and costs as of the date the estimate is made. Prices include      consideration of changes in existing prices provided only by contractual      arrangements, but not on escalations based upon future      conditions.  Reservoirs are considered proved if economic      production is supported by either actual production or conclusive      formation test.  The area of a reservoir considered proved      includes that portion delineated by drilling and defined by gas-oil and/or      oil-water contacts, if any, and the immediately adjoining portions not yet      drilled, but which can be reasonably judged as economically productive on      the basis of available geological and engineering  data. |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (2)   | “Proved      developed reserves” generally means reserves that can be expected to be      recovered through existing wells with existing equipment and operating      methods. |
|-----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (3)   | The      present value of estimated future net cash flows is calculated by      discounting estimated future net cash flows by 10%    annually. |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------|

| (4)   | Please      see Regulation S-X rule 4-10 for complete definitions of each reserve      category. |
|-----------------|--------------------------------------------------------------------------------------------------|

| (5)   | This      value per $25,000 unit is determined by following the methodology used for      determining our proved reserves using the data discussed above. However,      this value does not necessarily reflect the fair market value of a unit,      and each unit is illiquid. Also, the value of a unit for purposes of      presentment of the unit to our MGP for purchase is different because it is      calculated under a formula set forth in the partnership      agreement. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                                                                                                                                                                                                                                                                                                                                                                                  |   | Developed      Acreage |     |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|------------------------|----------|
| Location                                                                                                                                                                                                                                                                                                                                                                              |   | Gross      (1)         |     |   | Net      (2) |   |
| New      York                                                             |   |                   | 200.00   |   |   |   | 200.00 |   |
| Pennsylvania                                                              |   |                   | 3,939.82 |   |   |   | 3,308.27 |   |
| Tennessee                                                                 |   |                   | 2,399.10 |   |   |   | 1,680.35 |   |
| Total                                                                                                   |   |                   | 6,538.92 |   |   |   | 5,188.62 |   |

| (1)   | A      “gross” acre is an acre in which we own a working  interest. |
|-----------------|---------------------------------------------------------------------------------|

| (2)   | A      “net” acre equals the actual working interest we own in one gross acre      divided by one hundred. For example, a 50% working interest in an acre is      one gross acre, but a 0.5 net acre. |
|-----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | our      managing general partner consent; |
|--------------------|--------------------------------------------|

| ·   | the      transfer not result in materially adverse tax consequences to us;      and |
|--------------------|-------------------------------------------------------------------------------------|

| ·   | the      transfer not violate federal or state securities  laws. |
|--------------------|------------------------------------------------------------------|

| ·   | the      assignor gives the assignee theright; |
|--------------------|------------------------------------------------|

| ·   | our      MGP consents to the substitution; |
|--------------------|--------------------------------------------|

| ·   | the      assignee pays to us all costs and expenses incurred in connection with the      substitution; and |
|--------------------|------------------------------------------------------------------------------------------------------------|

| ·   | the      assignee executes and delivers the instruments, which our MGP requires to      effect the substitution and to confirm his or her agreement to be bound by      the terms of our partnershipagreement. |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | Years      Ended December 31 |   |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|------------------------------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |   | 2008                         |   |   | 2007 |   |
| Production      revenues (in thousands):                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |                         |   |   |   |   |
| Gas                                                                                                                                |   | $                            | 12,279 |   |   | $ | 12,249 |   |
| Oil                                                                                                                                |   | $                            | 335    |   |   | $ | 214 |   |
| Total                                                                                                                              |   | $                            | 12,614 |   |   | $ | 12,463 |   |
| Production      volumes:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |                         |   |   |   |   |   |   |
| Gas      (mcf/day) (1)                                                                                                             |   |                         | 3,653  |   |   |   | 3,963 |   |
| Oil      (bbls/day) (1)                                                                                                            |   |                         | 10     |   |   |   | 9 |   |
| Total      (mcfe/day) (1)                                                                                                          |   |                         | 3,713  |   |   |   | 4,017 |   |
| Average      sales price:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |   |                         |   |   |   |   |   |   |
| Gas      (per mcf) (1)      (2)                                                                                                    |   | $                            | 9.19   |   |   | $ | 8.47 |   |
| Oil      (per bbl) (1)      (3)                                                                                                    |   | $                            | 93.76  |   |   | $ | 66.93 |   |
| Average      production costs:                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |                         |   |   |   |   |   |   |
| As      a percent of      revenues                                                                                                 |   |                         | 22     | % |   |   | 20 | % |
| Per      mcfe (1)                                                                                                                  |   | $                            | 2.07   |   |   | $ | 1.68 |   |
| Depletion      per      mcfe                                                                              |   | $                            | 6.32   |   |   | $ | 5.51 |   |

| (1)   | “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. |
|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (2)   | The      average sales price per mcf before the effects of hedging was $9.46 and      $7.35 for the years ended December 31, 2008 and 2007,      respectively. |
|-----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (3)   | The      average sales price per bbl before the effects of hedging was $95.45 for      the year ended December 31, 2008. There was no hedging for oil in      2007. |
|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|               |   |   |             |    |   |             |   |   |            |   |
|--------------------|--------|--------|------------------|---------|--------|------------------|--------|--------|-----------------|--------|
| Production         |   |   |             |    |   | Average          |   |   |            |   |
| Period      Ending |   |   | Volumes          |    |   | Fixed      Price |   |   | Fair      Value |   |
| December      31,  |   |   | (MMbtu)      (1) |    |   | (per      MMbtu) |   |   | Asset      (2)  |   |
|               |   |   |             |    |   |             |   |   |            |   |
| 2009               |   |   |             | 873,300 |   |             | $      | 8.55   |            |   | $ | 2,136,100 |   |
| 2010               |   |   |             | 603,900 |   |             |   | 8.11   |            |   |   | 585,000 |   |
| 2011               |   |   |             | 427,900 |   |             |   | 7.84   |            |   |   | 221,500 |   |
| 2012               |   |   |             | 316,100 |   |             |   | 8.05   |            |   |   | 248,600 |   |
| 2013               |   |   |             | 34,400  |   |             |   | 8.73   |            |   |   | 48,100 |   |
|               |   |   |             |    |   |             |   |   |            |   |   |   |   |
|               |   |   |             |    |   |             |   |   |            |   | $ | 3,239,300 |   |

|               |   |                |   |             |    |   |                 |   |   |            |   |
|--------------------|--------|---------------------|--------|------------------|---------|--------|----------------------|--------|--------|-----------------|--------|
| Production         |   |                |   |             |    |   | Average              |   |   |            |   |
| Period      Ending |   | Option              |   | Volumes          |    |   | Floor      & Cap |   |   | Fair      Value |   |
| December      31,  |   | Type                |   | (MMbtu)      (1) |    |   | (per      MMbtu)     |   |   | Asset      (2)  |   |
|               |   |                |   |             |    |   |                 |   |   |            |   |
| 2009               |   | Puts      purchased |   |             | 5,500   |   |                 | $      | 11.00  |            |   | $ | 27,100 |   |
| 2009               |   | Calls      sold     |   |             | 5,500   |   |                 |   | 15.35  |            |   |   | — |   |
| 2010               |   | Puts      purchased |   |             | 77,000  |   |                 |   | 7.84   |            |   |   | 76,500 |   |
| 2010               |   | Calls      sold     |   |             | 77,000  |   |                 |   | 9.01   |            |   |   | — |   |
| 2011               |   | Puts      purchased |   |             | 171,800 |   |                 |   | 7.48   |            |   |   | 85,000 |   |
| 2011               |   | Calls      sold     |   |             | 171,800 |   |                 |   | 8.44   |            |   |   | — |   |
| 2012               |   | Puts      purchased |   |             | 23,300  |   |                 |   | 7.00   |            |   |   | 5,100 |   |
| 2012               |   | Calls      sold     |   |             | 23,300  |   |                 |   | 8.32   |            |   |   | — |   |
| 2013               |   | Puts      purchased |   |             | 6,900   |   |                 |   | 7.00   |            |   |   | 1,600 |   |
| 2013               |   | Calls      sold     |   |             | 6,900   |   |                 |   | 8.25   |            |   |   | — |   |
|               |   |                |   |             |    |   |                 |   |   |            |   | $ | 195,300 |   |

|               |   |   |    |   |   |             |   |   |            |   |
|--------------------|--------|--------|---------|--------|--------|------------------|--------|--------|-----------------|--------|
| Production         |   |   |    |   |   | Average          |   |   |            |   |
| Period      Ending |   |   | Volumes |   |   | Fixed      Price |   |   | Fair      Value |   |
| December      31,  |   |   | (Bbl)   |   |   | (per      Bbl)   |   |   | Asset      (3)  |   |
|               |   |   |    |   |   |             |   |   |            |   |
| 2009               |   |   |    | 800    |   |             | $      | 100.14 |            |   | $ | 38,100 |   |
| 2010               |   |   |    | 700    |   |             |   | 97.40  |            |   |   | 22,100 |   |
| 2011               |   |   |    | 600    |   |             |   | 96.44  |            |   |   | 15,600 |   |
| 2012               |   |   |    | 400    |   |             |   | 96.00  |            |   |   | 10,700 |   |
| 2013               |   |   |    | 100    |   |             |   | 96.06  |            |   |   | 3,000 |   |
|               |   |   |    |   |   |             |   |   |            |   |   |   |   |
|               |   |   |    |   |   |             |   |   |            |   | $ | 89,500 |   |

|               |   |                |   |    |   |   |                 |                 |   |            |   |
|--------------------|--------|---------------------|--------|---------|--------|--------|----------------------|----------------------|--------|-----------------|--------|
| Production         |   |                |   |    |   |   | Average              |                 |   |            |   |
| Period      Ending |   | Option              |   | Volumes |   |   | Floor      & Cap |                 |   | Fair      Value |   |
| December      31,  |   | Type                |   | (Bbl)   |   |   | (per      Bbl)       |                 |   | Asset      (3)  |   |
|               |   |                |   |    |   |   |                 |                 |   |            |   |
| 2009               |   | Puts      purchased |   |    | 500    |   |                 | $                    | 85.00  |            |   | $ | 16,400 |   |
| 2009               |   | Calls      sold     |   |    | 500    |   |                 |                 | 118.63 |            |   |   | — |   |
| 2010               |   | Puts      purchased |   |    | 400    |   |                 |                 | 85.00  |            |   |   | 10,300 |   |
| 2010               |   | Calls      sold     |   |    | 400    |   |                 |                 | 112.92 |            |   |   | — |   |
| 2011               |   | Puts      purchased |   |    | 400    |   |                 |                 | 85.00  |            |   |   | 7,300 |   |
| 2011               |   | Calls      sold     |   |    | 400    |   |                 |                 | 110.81 |            |   |   | — |   |
| 2012               |   | Puts      purchased |   |    | 300    |   |                 |                 | 85.00  |            |   |   | 5,200 |   |
| 2012               |   | Calls      sold     |   |    | 300    |   |                 |                 | 110.06 |            |   |   | — |   |
| 2013               |   | Puts      purchased |   |    | 100    |   |                 |                 | 85.00  |            |   |   | 1,400 |   |
| 2013               |   | Calls      sold     |   |    | 100    |   |                 |                 | 110.09 |            |   |   | — |   |
|               |   |                |   |    |   |   |                 |                 |   |            |   | $ | 40,600 |   |
|               |   |                |   |    |   |   |                 |                 |   |            |   |   |   |   |
|               |   |                |   |    |   |   |                 | Total      Net Asset |   |            | $      | 3,564,700 |   |

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

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

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

|                                                |   | December      31, |      |
|-----------------------------------------------------|--------|-------------------|-----------|
|                                                |   | 2008              |      |   | 2007 |   |
| Short-term      hedge receivable due from affiliate |   | $                 | 2,431,800 |   |   | $ | 1,235,400 |   |
| Long-term      hedge receivable due from affiliate  |   |              | 1,539,700 |   |   |   | 184,700 |   |
| Short-term      hedge liability due to affiliate    |   |              | (214,100  | ) |   |   | (29,200 | ) |
| Long-term      hedge liability due to affiliate     |   |              | (192,700  | ) |   |   | (1,856,100 | ) |
|                                                |   | $                 | 3,564,700 |   |   | $ | (465,200 | ) |

|                                                                                                                                                                                                                                                                                                                                                                                                                 |   | Fair      Value Measurements at December 31, 2008 Using |    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|---------------------------------------------------------|---------|
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   | Quoted      prices                                      |    |   | Significant      other |   |   | Significant |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   | in      active                                          |    |   | observable |   |   | unobservable |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   | markets                                                 |    |   | inputs |   |   | inputs |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   | (Level      1)                                          |    |   | (Level      2) |   |   | (Level      3) |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                                    |    |   |   |   |   |   |   |
| Commodity-based      derivatives                                                               |   | $                                                       | — |   |   | $ | 3,564,700 |   |   | $ | — |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                                    |    |   |   |   |   |   |   |   |   |   |
| Total                                                                                          |   | $                                                       | — |   |   | $ | 3,564,700 |   |   | $ | — |   |

|                                                |   | 2008   |       |   | 2007   |   |
|-----------------------------------------------------|--------|--------|------------|--------|--------|--------|
| ASSETS                                              |   |   |       |   |   |   |
| Current      assets:                                |   |   |       |   |   |   |
| Cash      and cash equivalents                      |   | $      | 661,800    |   |   | $      | 1,142,300 |   |
| Accounts      receivable-affiliate                  |   |   | 2,478,800  |   |   |   | 3,806,400 |   |
| Short-term      hedge receivable due from affiliate |   |   | 2,431,800  |   |   |   | 1,235,400 |   |
| Total      current assets                           |   |   | 5,572,400  |   |   |   | 6,184,100 |   |
|                                                |   |   |       |   |   |   |   |   |
| Oil      and gas properties, net                    |   |   | 19,685,600 |   |   |   | 70,039,100 |   |
| Long-term      hedge receivable due from affiliate  |   |   | 1,539,700  |   |   |   | 184,700 |   |
|                                                |   | $      | 26,797,700 |   |   | $      | 76,407,900 |   |
|                                                |   |   |       |   |   |   |   |   |
|                                                |   |   |       |   |   |   |   |   |
| LIABILITIES      AND PARTNERS' CAPITAL              |   |   |       |   |   |   |   |   |
| Current      liabilities:                           |   |   |       |   |   |   |   |   |
| Accrued      liabilities                            |   | $      | 22,200     |   |   | $      | 27,000 |   |
| Short-term      hedge liability due to affiliate    |   |   | 214,100    |   |   |   | 29,200 |   |
| Total      current liabilities                      |   |   | 236,300    |   |   |   | 56,200 |   |
|                                                |   |   |       |   |   |   |   |   |
| Asset      retirement obligation                    |   |   | 2,013,000  |   |   |   | 1,690,100 |   |
| Long-term      hedge liability due to affiliate     |   |   | 192,700    |   |   |   | 1,856,100 |   |
|                                                |   |   |       |   |   |   |   |   |
|                                                |   |   |       |   |   |   |   |   |
| Partners'      capital:                             |   |   |       |   |   |   |   |   |
| Managing      general partner                       |   |   | 5,760,400  |   |   |   | 14,585,800 |   |
| Limited      partners (2,840 units)                 |   |   | 18,595,300 |   |   |   | 58,684,900 |   |
| Accumulated      other comprehensive loss           |   |   | —    |   |   |   | (465,200 | ) |
| Total      partners' capital                        |   |   | 24,355,700 |   |   |   | 72,805,500 |   |
|                                                |   | $      | 26,797,700 |   |   | $      | 76,407,900 |   |

|                                          |   | 2008   |        |   | 2007   |   |
|-----------------------------------------------|--------|--------|-------------|--------|--------|--------|
| REVENUES                                      |   |   |        |   |   |   |
| Natural      gas and oil                      |   | $      | 12,614,700  |   |   | $      | 12,462,800 |   |
| Total      revenues                           |   |   | 12,614,700  |   |   |   | 12,462,800 |   |
|                                          |   |   |        |   |   |   |   |   |
| COSTS      AND EXPENSES                       |   |   |        |   |   |   |   |   |
| Production                                    |   |   | 2,808,300   |   |   |   | 2,468,300 |   |
| Depletion                                     |   |   | 8,590,600   |   |   |   | 8,074,200 |   |
| Impairment      of oil and gas properties     |   |   | 38,135,500  |   |   |   | 10,255,500 |   |
| Accretion      of asset retirement obligation |   |   | 96,000      |   |   |   | 110,400 |   |
| General      and administrative               |   |   | 278,400     |   |   |   | 195,100 |   |
| Total      expenses                           |   |   | 49,908,800  |   |   |   | 21,103,500 |   |
| Net      loss                                 |   | $      | (37,294,100 | )      |   | $      | (8,640,700 | ) |
|                                          |   |   |        |   |   |   |   |   |
| Allocation      of net (loss) earnings:       |   |   |        |   |   |   |   |   |
| Managing      general partner                 |   | $      | (4,841,900  | )      |   | $      | 266,100 |   |
| Limited      partners                         |   | $      | (32,452,200 | )      |   | $      | (8,906,800 | ) |
| Net      loss per limited partnership unit    |   | $      | (11,427     | )      |   | $      | (3,136 | ) |

|                                                                                  |   | 2008   |        |   | 2007   |   |
|---------------------------------------------------------------------------------------|--------|--------|-------------|--------|--------|--------|
|                                                                                  |   |   |        |   |   |   |
| Net      loss                                                                         |   | $      | (37,294,100 | )      |   | $      | (8,640,700 | ) |
| Other      comprehensive income (loss):                                               |   |   |        |   |   |   |   |   |
| Unrealized      holding gain on hedging contracts                                     |   |   | 85,600      |   |   |   | 1,151,700 |   |
| Less:      reclassification adjustment for loss (gains) realized in net      earnings |   |   | 379,600     |   |   |   | (1,616,900 | ) |
| Total      other comprehensive income (loss)                                          |   |   | 465,200     |   |   |   | (465,200 | ) |
| Comprehensive      loss                                                               |   | $      | (36,828,900 | )      |   | $      | (9,105,900 | ) |

|                                                 |   |     |       |   |     |   |        | Accumulated   |   |   |     |   |
|------------------------------------------------------|--------|----------|------------|--------|----------|--------|-------------|---------------|--------|--------|----------|--------|
|                                                 |   | Managing |       |   |     |   |        | Other         |   |   |     |   |
|                                                 |   | General  |       |   | Limited  |   |        | Comprehensive |   |   |     |   |
|                                                 |   | Partner  |       |   | Partners |   |        | Loss          |   |   | Total    |   |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |
| Balance      at December 31, 2006                    |   | $        | 1,246,200  |   |     | $      | 70,881,500  |          |   | $      | —  |   |   | $ | 72,127,700 |   |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| Participation      in revenue and costs and expenses |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| Net      production revenues                         |   |     | 3,258,200  |   |     |   | 6,736,300   |          |   |   | —  |   |   |   | 9,994,500 |   |
| Depletion                                            |   |     | (1,274,200 | )      |     |   | (6,800,000  | )             |   |   | —  |   |   |   | (8,074,200 | ) |
| Impairment      of oil and gas properties            |   |     | (1,618,300 | )      |     |   | (8,637,200  | )             |   |   | —  |   |   |   | (10,255,500 | ) |
| Accretion      expense                               |   |     | (36,000    | )      |     |   | (74,400     | )             |   |   | —  |   |   |   | (110,400 | ) |
| General      and administrative                      |   |     | (63,600    | )      |     |   | (131,500    | )             |   |   | —  |   |   |   | (195,100 | ) |
| Net      earnings (loss)                             |   |     | 266,100    |   |     |   | (8,906,800  | )             |   |   | —  |   |   |   | (8,640,700 | ) |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| MGP      asset contribution                          |   |     | 14,664,700 |   |     |   | —     |          |   |   | —  |   |   |   | 14,664,700 |   |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| Other      comprehensive loss                        |   |     | —    |   |     |   | —     |          |   |   | (465,200 | )      |   |   | (465,200 | ) |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| Distributions      to partners                       |   |     | (1,591,200 | )      |     |   | (3,289,800  | )             |   |   | —  |   |   |   | (4,881,000 | ) |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| Balance      at December 31, 2007                    |   | $        | 14,585,800 |   |     | $      | 58,684,900  |          |   | $      | (465,200 | )      |   | $ | 72,805,500 |   |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| Participation      in revenue and costs and expenses |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| Net      production revenues                         |   |     | 3,196,900  |   |     |   | 6,609,500   |          |   |   | —  |   |   |   | 9,806,400 |   |
| Depletion                                            |   |     | (1,455,500 | )      |     |   | (7,135,100  | )             |   |   | —  |   |   |   | (8,590,600 | ) |
| Impairment      of oil and gas properties            |   |     | (6,461,200 | )      |     |   | (31,674,300 | )             |   |   | —  |   |   |   | (38,135,500 | ) |
| Accretion      expense                               |   |     | (31,300    | )      |     |   | (64,700     | )             |   |   | —  |   |   |   | (96,000 | ) |
| General      and administrative                      |   |     | (90,800    | )      |     |   | (187,600    | )             |   |   | —  |   |   |   | (278,400 | ) |
| Net      earnings (loss)                             |   |     | (4,841,900 | )      |     |   | (32,452,200 | )             |   |   | —  |   |   |   | (37,294,100 | ) |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| MGP      asset returned                              |   |     | (289,500   | )      |     |   | —     |          |   |   | —  |   |   |   | (289,500 | ) |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| Other      comprehensive income                      |   |     | —    |   |     |   | —     |          |   |   | 465,200  |   |   |   | 465,200 |   |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| Distributions      to partners                       |   |     | (3,694,000 | )      |     |   | (7,637,400  | )             |   |   | —  |   |   |   | (11,331,400 | ) |
|                                                 |   |     |       |   |     |   |        |          |   |   |     |   |   |   |   |   |
| Balance      at December 31, 2008                    |   | $        | 5,760,400  |   |     | $      | 18,595,300  |          |   | $      | —  |   |   | $ | 24,355,700 |   |

|                                                                                      |   | 2008   |        |   | 2007   |   |
|-------------------------------------------------------------------------------------------|--------|--------|-------------|--------|--------|--------|
| Cash      flows from operating activities:                                                |   |   |        |   |   |   |
| Net      losses                                                                           |   | $      | (37,294,100 | )      |   | $      | (8,640,700 | ) |
| Adjustments      to reconcile net loss to net cash provided by operating      activities: |   |   |        |   |   |   |   |   |
| Depletion                                                                                 |   |   | 8,590,600   |   |   |   | 8,074,200 |   |
| Impairment      of oil and gas properties                                                 |   |   | 41,700,300  |   |   |   | 10,255,500 |   |
| Non-cash      gain on derivative value                                                    |   |   | (3,564,700  | )      |   |   | — |   |
| Accretion      of asset retirement obligation                                             |   |   | 96,000      |   |   |   | 110,400 |   |
| (Decrease)      increase in accrued liabilities                                           |   |   | (4,800      | )      |   |   | 15,000 |   |
| Decrease      (increase) in accounts receivable-affiliate                                 |   |   | 1,327,600   |   |   |   | (3,791,100 | ) |
| Net      cash provided by operating activities                                            |   |   | 10,850,900  |   |   |   | 6,023,300 |   |
|                                                                                      |   |   |        |   |   |   |   |   |
| Cash      flows from financing activities:                                                |   |   |        |   |   |   |   |   |
| Return      of initial capital contribution to managing generalpartner                    |   |   | —     |   |   |   | (100 | ) |
| Distributions      to partners                                                            |   |   | (11,331,400 | )      |   |   | (4,881,000 | ) |
| Net      cash used in financing activities                                                |   |   | (11,331,400 | )      |   |   | (4,881,100 | ) |
|                                                                                      |   |   |        |   |   |   |   |   |
| Net      (decrease) increase in cash and cash equivalents                                 |   |   | (480,500    | )      |   |   | 1,142,200 |   |
| Cash      and cash equivalents at beginning of period                                     |   |   | 1,142,300   |   |   |   | 100 |   |
| Cash      and cash equivalents at end of period                                           |   | $      | 661,800     |   |   | $      | 1,142,300 |   |
|                                                                                      |   |   |        |   |   |   |   |   |
| Supplemental Schedule      of non-cash investing and financing activities:                |   |   |        |   |   |   |   |   |
|                                                                                      |   |   |        |   |   |   |   |   |
|                                                                                      |   |   |        |   |   |   |   |   |
| Assets      (returned to) contributed by the managing general partner:                    |   |   |        |   |   |   |   |   |
| Tangible      equipment                                                                   |   | $      | (714,200    | )      |   | $      | 10,500,000 |   |
| Lease      costs                                                                          |   |   | —     |   |   |   | 1,377,300 |   |
| Intangible      drilling costs                                                            |   |   | 424,700     |   |   |   | 2,787,500 |   |
|                                                                                      |   |   |        |   |   |   |   |   |
|  Total assets (returned to) contributed by the managing general      partner         |   | $      | (289,500    | )      |   | $      | 14,664,800 |   |
|                                                                                      |   |   |        |   |   |   |   |   |
| Asset      retirement obligation                                                          |   | $      | 226,900     |   |   | $      | 1,246,300 |   |

| Oil      and gas properties consist of the following at the dates      indicated:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |   | December      31, |        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------|-------------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | 2008              |        |   | 2007 |   |
| Natural      gas and oil properties:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |              |        |   |   |   |
| Proved      properties:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |   |              |        |   |   |   |
| Leasehold      interests                                                                                                                          |   | $                 | 1,716,900   |   |   | $ | 1,716,900 |   |
| Wells      and related      equipment                                                                                                             |   |              | 86,310,000  |   |   |   | 86,399,700 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |              | 88,026,900  |   |   |   | 88,116,600 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   |              |        |   |   |   |   |   |
| Accumulated      depletion                                                                                               |   |              | (68,341,300 | ) |   |   | (18,077,500 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | $                 | 19,685,600  |   |   | $ | 70,039,100 |   |

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |   | Managing |   |   |     |   |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|----------|--------|--------|----------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |   | General  |   |   | Limited  |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |   | Partner  |   |   | Partners |   |
| Organization      and offering      costs                                                                                                             |   |     | 100    | %      |     |   | 0 | % |
| Lease      costs                                                                                                                                      |   |     | 100    | %      |     |   | 0 | % |
| Revenues      (1)                                                                                                                                     |   |     | 32.60  | %      |     |   | 67.40 | % |
| Operating      costs, administrative costs, direct costs and all other operating costs      (2)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |     | 32.60  | %      |     |   | 67.40 | % |
| Intangible      drilling      costs                                                                                                                   |   |     | 4.79   | %      |     |   | 95.21 | % |
| Tangible      equipment      costs                                                                                                                    |   |     | 60.11  | %      |     |   | 39.89 | % |

| (1)   | Subject      to the MGP’s subordination obligation, substantially all partnership      revenues will be shared in the same percentage as capital contributions      are to the total partnership capital contributions, except that the MGP      will receive an additional 7% of the partnership revenues, which may not      exceed 40%. |
|-----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (2)   | These      costs will be charged to the partners in the same ratio as the related      production revenues are credited. |
|-----------------|--------------------------------------------------------------------------------------------------------------------------|

| ·   | The      Partnership's MGP contributed undeveloped leases necessary to cover each      of the Partnership’s prospects and for the year ended December 31, 2007      received a credit to its capital account in the Partnership of      $1,377,300. |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | 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 in 2008 and 2007 were $172,500 and      $116,100, respectively. |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Monthly      well supervision fees which are included in production expenses in the      Partnership's Statements of Operations are payable at $376 and $362 per      well per month in 2008 and 2007 for operating and maintaining the wells.      Well supervision fees incurred in 2008 and 2007 were $868,600 and      $560,100, 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 in 2008 and 2007 were $1,367,500      and $1,527,400, respectively. |
|--------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Direct      costs which are included in production and general administrative expenses      in the Partnership's Statements of Operations are payable to the MGP and      its affiliates as reimbursement for all costs expended on the      Partnership’s behalf. Direct costs incurred in 2008 and 2007 were $678,100      and $459,800, respectively. |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | Assets      returned to the MGP, which are disclosed in the Partnership's Statements      of Cash Flows as a non-cash activity for the year ended December 31, 2008,      were $289,500. Assets contributed to the MGP, which are disclosed on the      Partnership’s Statement of Cash Flows as a non-cash activity for the year      ended December 31, 2007, were$14,664,800. |
|--------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|               |   |   |             |    |   |             |   |   |            |   |
|--------------------|--------|--------|------------------|---------|--------|------------------|--------|--------|-----------------|--------|
| Production         |   |   |             |    |   | Average          |   |   |            |   |
| Period      Ending |   |   | Volumes          |    |   | Fixed      Price |   |   | Fair      Value |   |
| December      31,  |   |   | (MMbtu)      (1) |    |   | (per      MMbtu) |   |   | Asset      (2)  |   |
|               |   |   |             |    |   |             |   |   |            |   |
| 2009               |   |   |             | 873,300 |   |             | $      | 8.55   |            |   | $ | 2,136,100 |   |
| 2010               |   |   |             | 603,900 |   |             |   | 8.11   |            |   |   | 585,000 |   |
| 2011               |   |   |             | 427,900 |   |             |   | 7.84   |            |   |   | 221,500 |   |
| 2012               |   |   |             | 316,100 |   |             |   | 8.05   |            |   |   | 248,600 |   |
| 2013               |   |   |             | 34,400  |   |             |   | 8.73   |            |   |   | 48,100 |   |
|               |   |   |             |    |   |             |   |   |            |   |   |   |   |
|               |   |   |             |    |   |             |   |   |            |   | $ | 3,239,300 |   |

|               |   |                |   |             |    |   |                 |   |   |            |   |
|--------------------|--------|---------------------|--------|------------------|---------|--------|----------------------|--------|--------|-----------------|--------|
| Production         |   |                |   |             |    |   | Average              |   |   |            |   |
| Period      Ending |   | Option              |   | Volumes          |    |   | Floor      & Cap |   |   | Fair      Value |   |
| December      31,  |   | Type                |   | (MMbtu)      (1) |    |   | (per      MMbtu)     |   |   | Asset      (2)  |   |
|               |   |                |   |             |    |   |                 |   |   |            |   |
| 2009               |   | Puts      purchased |   |             | 5,500   |   |                 | $      | 11.00  |            |   | $ | 27,100 |   |
| 2009               |   | Calls      sold     |   |             | 5,500   |   |                 |   | 15.35  |            |   |   | — |   |
| 2010               |   | Puts      purchased |   |             | 77,000  |   |                 |   | 7.84   |            |   |   | 76,500 |   |
| 2010               |   | Calls      sold     |   |             | 77,000  |   |                 |   | 9.01   |            |   |   | — |   |
| 2011               |   | Puts      purchased |   |             | 171,800 |   |                 |   | 7.48   |            |   |   | 85,000 |   |
| 2011               |   | Calls      sold     |   |             | 171,800 |   |                 |   | 8.44   |            |   |   | — |   |
| 2012               |   | Puts      purchased |   |             | 23,300  |   |                 |   | 7.00   |            |   |   | 5,100 |   |
| 2012               |   | Calls      sold     |   |             | 23,300  |   |                 |   | 8.32   |            |   |   | — |   |
| 2013               |   | Puts      purchased |   |             | 6,900   |   |                 |   | 7.00   |            |   |   | 1,600 |   |
| 2013               |   | Calls      sold     |   |             | 6,900   |   |                 |   | 8.25   |            |   |   | — |   |
|               |   |                |   |             |    |   |                 |   |   |            |   | $ | 195,300 |   |

|               |   |   |    |   |   |             |   |   |            |   |
|--------------------|--------|--------|---------|--------|--------|------------------|--------|--------|-----------------|--------|
| Production         |   |   |    |   |   | Average          |   |   |            |   |
| Period      Ending |   |   | Volumes |   |   | Fixed      Price |   |   | Fair      Value |   |
| December      31,  |   |   | (Bbl)   |   |   | (per      Bbl)   |   |   | Asset      (3)  |   |
|               |   |   |    |   |   |             |   |   |            |   |
| 2009               |   |   |    | 800    |   |             | $      | 100.14 |            |   | $ | 38,100 |   |
| 2010               |   |   |    | 700    |   |             |   | 97.40  |            |   |   | 22,100 |   |
| 2011               |   |   |    | 600    |   |             |   | 96.44  |            |   |   | 15,600 |   |
| 2012               |   |   |    | 400    |   |             |   | 96.00  |            |   |   | 10,700 |   |
| 2013               |   |   |    | 100    |   |             |   | 96.06  |            |   |   | 3,000 |   |
|               |   |   |    |   |   |             |   |   |            |   |   |   |   |
|               |   |   |    |   |   |             |   |   |            |   | $ | 89,500 |   |

|               |   |                |   |    |   |   |                 |                 |   |            |   |
|--------------------|--------|---------------------|--------|---------|--------|--------|----------------------|----------------------|--------|-----------------|--------|
| Production         |   |                |   |    |   |   | Average              |                 |   |            |   |
| Period      Ending |   | Option              |   | Volumes |   |   | Floor      & Cap |                 |   | Fair      Value |   |
| December      31,  |   | Type                |   | (Bbl)   |   |   | (per      Bbl)       |                 |   | Asset      (3)  |   |
|               |   |                |   |    |   |   |                 |                 |   |            |   |
| 2009               |   | Puts      purchased |   |    | 500    |   |                 | $                    | 85.00  |            |   | $ | 16,400 |   |
| 2009               |   | Calls      sold     |   |    | 500    |   |                 |                 | 118.63 |            |   |   | — |   |
| 2010               |   | Puts      purchased |   |    | 400    |   |                 |                 | 85.00  |            |   |   | 10,300 |   |
| 2010               |   | Calls      sold     |   |    | 400    |   |                 |                 | 112.92 |            |   |   | — |   |
| 2011               |   | Puts      purchased |   |    | 400    |   |                 |                 | 85.00  |            |   |   | 7,300 |   |
| 2011               |   | Calls      sold     |   |    | 400    |   |                 |                 | 110.81 |            |   |   | — |   |
| 2012               |   | Puts      purchased |   |    | 300    |   |                 |                 | 85.00  |            |   |   | 5,200 |   |
| 2012               |   | Calls      sold     |   |    | 300    |   |                 |                 | 110.06 |            |   |   | — |   |
| 2013               |   | Puts      purchased |   |    | 100    |   |                 |                 | 85.00  |            |   |   | 1,400 |   |
| 2013               |   | Calls      sold     |   |    | 100    |   |                 |                 | 110.09 |            |   |   | — |   |
|               |   |                |   |    |   |   |                 |                 |   |            |   | $ | 40,600 |   |
|               |   |                |   |    |   |   |                 |                 |   |            |   |   |   |   |
|               |   |                |   |    |   |   |                 | Total      Net Asset |   |            | $      | 3,564,700 |   |

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

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

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

|                                                |   | December      31, |      |
|-----------------------------------------------------|--------|-------------------|-----------|
|                                                |   | 2008              |      |   | 2007 |   |
| Short-term      hedge receivable due from affiliate |   | $                 | 2,431,800 |   |   | $ | 1,235,400 |   |
| Long-term      hedge receivable due from affiliate  |   |              | 1,539,700 |   |   |   | 184,700 |   |
| Short-term      hedge liability due to affiliate    |   |              | (214,100  | ) |   |   | (29,200 | ) |
| Long-term      hedge liability due to affiliate     |   |              | (192,700  | ) |   |   | (1,856,100 | ) |
|                                                |   | $                 | 3,564,700 |   |   | $ | (465,200 | ) |

|                                                                                                                                                                                                                                                                                                                                                                                                                 |   | Fair      Value Measurements at December 31, 2008 Using |    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|---------------------------------------------------------|---------|
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   | Quoted      prices                                      |    |   | Significant      other |   |   | Significant |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   | in      active                                          |    |   | observable |   |   | unobservable |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   | markets                                                 |    |   | inputs |   |   | inputs |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   | (Level      1)                                          |    |   | (Level      2) |   |   | (Level      3) |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                                    |    |   |   |   |   |   |   |
| Commodity-based      derivatives                                                               |   | $                                                       | — |   |   | $ | 3,564,700 |   |   | $ | — |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                 |   |                                                    |    |   |   |   |   |   |   |   |   |   |
| Total                                                                                          |   | $                                                       | — |   |   | $ | 3,564,700 |   |   | $ | — |   |

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | Years      Ended December 31, |      |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------------------|-----------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |   | 2008                          |      |   | 2007 |   |
| Asset      retirement obligation at beginning of year                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |   | $                             | 1,690,100 |   |   | $ | 333,400 |   |
| Liabilities      incurred from drilling      wells                                                                                  |   |                          | —   |   |   |   | 1,301,500 |   |
| Revision      in      estimates                                                                                                     |   |                          | 226,900   |   |   |   | (55,200 | ) |
| Accretion      expense                                                                                                              |   |                          | 96,000    |   |   |   | 110,400 |   |
| Asset      retirement obligation at end of      year                                                                                |   | $                             | 2,013,000 |   |   | $ | 1,690,100 |   |

| (1)   | Capitalized      Costs Related to Oil and Gas Producing  Activities |
|-----------------|---------------------------------------------------------------------|

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | At      December 31, |        |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|----------------------|-------------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   | 2008                 |        |   | 2007 |   |
| Mineral      interest in proved      properties:                                                                                          |   | $                    | 1,716,900   |   |   | $ | 1,716,900 |   |
| Wells      and related      equipment                                                                                                     |   |                 | 86,310,000  |   |   |   | 86,399,700 |   |
| Accumulated      depletion                                                                                                                |   |                 | (68,341,300 | ) |   |   | (18,077,500 | ) |
| Net      capitalized      cost                                                                                                                                                                        |   | $                    | 19,685,600  |   |   | $ | 70,039,100 |   |

| (2)   | Oil      and Gas Reserve Information |
|-----------------|--------------------------------------|

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   | Natural      Gas |       |   | Oil    |   |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|------------------|------------|--------|--------|--------|
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   | (Mcf)            |       |   | (Bbls) |   |
| Balance      at December 31, 2006                                                                                                                                                                                                                                                                                                                                                                                                                                                         |   |             | 2,841,800  |   |   |   | 2,300 |   |
| Production                                                                                                        |   |             | (1,446,600 | )      |   |   | (3,200 | ) |
| Extensions,      discoveries and other additions                                                                                                                                                                                                                                                                                                                                                                                                                                          |   |             | 10,975,900 |   |   |   | — |   |
| Revisions      to previous      estimates                                                                         |   |             | (1,389,400 | )      |   |   | 18,900 |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |             |       |   |   |   |   |   |
| Balance      at December 31, 2007                                                                                                                                                                                                                                                                                                                                                                                                                                                         |   |             | 10,981,700 |   |   |   | 18,000 |   |
| Production                                                                                                        |   |             | (1,336,900 | )      |   |   | (3,600 | ) |
| Revisions      to previous      estimates                                                                         |   |             | (2,725,300 | )      |   |   | (1,600 | ) |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |             |       |   |   |   |   |   |
| Balance      at December 31, 2008                                                                                                                                                                                                                                                                                                                                                                                                                                                         |   |             | 6,919,500  |   |   |   | 12,800 |   |

| NAME                    | AGE    | POSITION OR      OFFICE                                                             |
|-------------------------|--------|-------------------------------------------------------------------------------------|
|                    |   |                                                                                |
| Freddie      M. Kotek   | 53     | Chairman      of the Board of Directors, Chief Executive Officer and      President |
| Frank      P. Carolas   | 49     | Executive      Vice President – Land and Geology and a Director               |
| Jeffrey      C. Simmons | 50     | Executive      Vice President – Operations and a Director                     |
| Jack      L. Hollander  | 52     | Senior      Vice President – Direct Participation Programs                    |
| Sean      P. McGrath    | 37     | Chief      Accounting Officer                                                       |
| Michael      L. Staines | 59     | Senior      Vice President, Secretary and a Director                                |
| Matthew      A. Jones   | 47     | Chief      Financial Officer                                                        |

| ·   | the      approximate amount of an individual’s professional time devoted to the      business and affairs of our MGP and Atlas America have been aggregated      because there is no reasonable method for them to distinguish their      activities between the two companies;and |
|--------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | for      those individuals who also hold senior positions with other affiliates of      our MGP, if it is stated that they devote approximately 100% of their      professional time to our MGP and Atlas America, it is because either the      other affiliates are not currently active in drilling new wells, such as      Viking Resources or Resource Energy, and the individuals are not required      to devote a material amount of their professional time to the affiliates,      or there is no reasonable method to distinguish their activities between      our MGP and Atlas America as compared with the other affiliates of our      MGP, such as Viking Resources or Resource  Energy. |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ITEM      13. | CERTAIN      RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE |
|---------------|--------------------------------------------------------------------------------|

|   | Description                                                    | Location                                 |
|--------|----------------------------------------------------------------|------------------------------------------|
|   |                                                           |                                     |
| 4(a)   | Certificate      of Limited Partnership for Atlas America      | Previously      filed in our Form S-1 on |
|   | Series      27-2006 L.P.                                       | August      9, 2005                      |
|   |                                                           |                                     |
| 4(b)   | Amended      and Restated Certificate and Agreement of Limited | Previously      filed in our Form S-1 on |
|   | Partnership      for Atlas America Series 27-2006 L.P. (1)     | August      9, 2005                      |
|   |                                                           |                                     |
| 4(c)   | Drilling      and Operating Agreement for Atlas America        | Previously      filed in our Form S-1 on |
|   | Series      27-2006 L.P. (1)                                   | August      9, 2005                      |
|   |                                                           |                                     |
| 31.1   | Rule      13a-14(a)/15(d) – 14 (a) Certification         |                                     |
|   |                                                           |                                     |
| 31.2   | Rule      13a-14(a)/15(d) – 14 (a) Certification.        |                                     |
|   |                                                           |                                     |
| 32.1   | Section      1350 Certification.                               |                                     |
|   |                                                           |                                     |
| 32.2   | Section      1350 Certification.                               |                                     |

| (1) | Filed      on April 30, 2007 in the Form S-1 Registration Statement dated April 30,      2007, File No. 0-52615 |
|-----|-----------------------------------------------------------------------------------------------------------------|

| In      accordance with Section 13 or 15(d) of the Exchange Act, the registrant      caused this report to be signed on its |
|-----------------------------------------------------------------------------------------------------------------------------|
| behalf      by the undersigned, thereunto duly authorized.                                                                  |
|                                                                                                                        |
|                                                                                                                        |
| Atlas      America Series 27-2006 L.P.                                                                                      |
|                                                                                                                        |   |   |
| Date:  March      30, 2009                                                                                        |   | Atlas      Resources, LLC, Managing General Partner |
|                                                                                                                        |   |   |
|                                                                                                                        |   | 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:  March      30, 2009                                                                                        |   | By: /s/ Freddie M.      Kotek |
|                                                                                                                        |   | Freddie      M. Kotek, Chairman of the Board of Directors, Chief    Executive |
|                                                                                                                        |   | Officer      and President |
|                                                                                                                        |   |   |
|                                                                                                                        |   |   |
|                                                                                                                        |   |   |
| Date:  March      30, 2009                                                                                        |   | By: /s/ Frank P.      Carolas |
|                                                                                                                        |   | Frank      P. Carolas, Executive Vice President – Land and Geology |
|                                                                                                                        |   |   |
|                                                                                                                        |   |   |
|                                                                                                                        |   |   |
| Date:  March      30, 2009                                                                                        |   | By: /s/ Jeffrey C.      Simmons |
|                                                                                                                        |   | Jeffrey      C. Simmons, Executive Vice President – Operations |
|                                                                                                                        |   |   |
|                                                                                                                        |   |   |
|                                                                                                                        |   |   |
| Date:  March      30, 2009                                                                                        |   | By: /s/ Sean P.      McGrath |
|                                                                                                                        |   | Sean      P. McGrath, Chief Accounting Officer |
|                                                                                                                        |   |   |
|                                                                                                                        |   |   |
|                                                                                                                        |   |   |
| Date:  March      30, 2009                                                                                        |   | By: /s/ Matthew A.      Jones |
|                                                                                                                        |   | Matthew      A. Jones, Chief Financial Officer |
|                                                                                                                        |   |   |
|                                                                                                                        |   |   |
|                                                                                                                        |   |   |