----

| Tennessee                                 |   | 75-2127812          |
|-------------------------------------------|--------|---------------------|
| (State or other jurisdiction              |   | (I.R.S. Employer    |
| of incorporation or organization)         |   | Identification No.) |
|                                      |   |                |
| 6 Desta Drive, Suite 6500, Midland, Texas |   | 79705               |
| (Address of principal executive office)   |   | (Zip Code)          |

| Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.                                                                                                                                                                                                                                    | ¨ Yes | x No      |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------|-----------|
|                                                                                                                                                                                                                                                                                                                                                       |       |      |
| 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 | x No      |
|                                                                                                                                                                                                                                                                                                                                                       |       |      |
| 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.   | x Yes      | ¨ No |
|                                                                                                                                                                                                                                                                                                                                                       |       |      |
| Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). | ¨ Yes | ¨ 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.x |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer.  See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act. |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Large accelerated filer ¨                                                                                                                                                                                                                            |   | Accelerated filer ¨ |   | Non-accelerated filer  x |   | Smaller reporting company¨ |   |

| Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). | ¨ Yes | x No |
|---------------------------------------------------------------------------------------------------------|------------|------|

|   |
|--------|

----

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | Page   |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|
| Part I                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 1.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Business                                                                                                                                                    | 3      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 1A.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Risk Factors                                                                                                                                                | 7      |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 1B.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Unresolved Staff Comments                                                                                                                                   | 10     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 2.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Properties                                                                                                                                                  | 10     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 3.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Legal Proceedings                                                                                                                                           | 11     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 4.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | (Removed and Reserved)                                                                                                                                      | 11     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Part II                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 5.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Market for Registrant's Common Equity, Related                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Stockholder Matters and Issuer Purchases of Equity Securities                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    | 12     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 6.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Selected Financial Data                                                                                                                                     | 13     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 7.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Management's Discussion and Analysis of                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Financial Condition and Results of Operations                                                                                                                                   | 14     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 7A.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Quantitative and Qualitative Disclosures About Market Risk                                                                                                  | 16     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 8.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Financial Statements and Supplementary Data                                                                                                                 | 17     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 9.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | Changes in and Disagreements with Accountants                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | on Accounting and Financial Disclosure                                                                                                                                          | 30     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 9A.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Controls and Procedures                                                                                                                                     | 30     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 9B.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Other Information                                                                                                                                           | 31     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Part III                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 10.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Directors, Executive Officers and Corporate Governance                                                                                                      | 32     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 11.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Executive Compensation                                                                                                                                      | 32     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 12.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Security Ownership of Certain Beneficial Owners and Management and                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | Related Stockholder Matters                                                                                                                                                     | 33     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 13.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Certain Relationships and Related Transactions, and Director Independence                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        | 33     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 14.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Principal Accounting Fees and Services                                                                                                                      | 33     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Part IV                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Item 15.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | Exhibits and Financial Statement Schedules                                                                                                                  | 34     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Glossary of Oil and Gas Terms                                                                                                                   | 37                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |   |
| Signatures                                                                                                                                      | 39                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |

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| ·   | amends the definition of proved reserves to require the use of average commodity prices based upon the prior 12 month period rather than year-end prices; |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | expands the type of technologies available to establish reserve estimates and categories; |
|--------------------|-------------------------------------------------------------------------------------------|

| ·   | modifies certain definitions used in estimating proved reserves; |
|--------------------|------------------------------------------------------------------|

| ·   | permits disclosure of probable and possible reserves; and |
|--------------------|-----------------------------------------------------------|

| ·   | permits disclosure of reserves based on different price and cost criteria, such as futures prices or management forecasts. |
|--------------------|----------------------------------------------------------------------------------------------------------------------------|

|   |
|--------|

----

|                               |   | Proved Developed |      |   | Proved       |   |    | Total       |   |
|------------------------------------|--------|------------------|-----------|--------|--------------|--------|---------|-------------|--------|
|                               |   | Producing        |      |   | Nonproducing |   |    | Undeveloped |   |   | Proved |   |
| Oil (Bbls)                         |   |             | 101,000   |   |         |   | 82,000  |        |   |   | 36,000 |   |   |   | 219,000 |   |
| Gas (Mcf)                          |   |             | 1,614,000 |   |         |   | 292,000 |        |   |   | 537,000 |   |   |   | 2,443,000 |   |
| Total (BOE)                        |   |             | 370,000   |   |         |   | 131,000 |        |   |   | 126,000 |   |   |   | 627,000 |   |
|                               |   |             |      |   |         |   |    |        |   |   |   |   |   |   |   |   |
| Standardized measure of discounted |   |             |      |   |         |   |    |        |   |   |   |   |   |   |   |   |
| future net cash flows              |   |             |      |   |         |   |    |        |   |   |   |   |   | $ | 11,509,000 |   |

|            |   | Proved Reserves |    |   |   |   |
|-----------------|--------|-----------------|---------|--------|--------|--------|
|            |   |            |    |   |   |   |   | Total Oil |   |   | Percent of |   |
|            |   | Oil             |    |   | Gas    |   |   | Equivalent |   |   | Total Oil |   |
|            |   | (Bbls)          |    |   | (Mcf)  |   |   | (BOE) |   |   | Equivalent |   |
| Amacker/Tippett |   |            | 82,000  |   |   |   | 1,647,000 |   |   |   | 357,000 |   |   |   | 56.9 | % |
| Rhoda Walker    |   |            | 125,000 |   |   |   | 387,000 |   |   |   | 190,000 |   |   |   | 30.3 | % |
| Wilshire        |   |            | 8,000   |   |   |   | 388,000 |   |   |   | 73,000 |   |   |   | 11.7 | % |
| Other           |   |            | 4,000   |   |   |   | 21,000 |   |   |   | 7,000 |   |   |   | 1.1 | % |
| Total           |   |            | 219,000 |   |   |   | 2,443,000 |   |   |   | 627,000 |   |   |   | 100.0 | % |

Item 

Item 

|   |
|--------|

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| Item 5. | Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities |
|---------|--------------------------------------------------------------------------------------------------------------|

|           |   | Total Number |   |   |          |   |
|----------------|--------|--------------|--------|--------|---------------|--------|
|           |   | of Units     |   |   | Average Price |   |
| Period         |   | Purchased    |   |   | Paid Per Unit |   |
| January 2010   |   |         | -      |   |          | $      | - |   |
| February 2010  |   |         | -      |   |          |   | - |   |
| March 2010     |   |         | -      |   |          |   | - |   |
| April 2010     |   |         | -      |   |          |   | - |   |
| May 2010       |   |         | -      |   |          |   | - |   |
| June 2010      |   |         | 113.0  |   |          |   | 207.50 |   |
| July 2010      |   |         | -      |   |          |   | - |   |
| August 2010    |   |         | -      |   |          |   | - |   |
| September 2010 |   |         | 42.0   |   |          |   | 192.00 |   |
| October 2010   |   |         | -      |   |          |   | - |   |
| November 2010  |   |         | -      |   |          |   | - |   |
| December 2010  |   |         | -      |   |          |   | - |   |
| TOTALS         |   |         | 155.0  |   |          | $      | 203.30 |   |

|   |
|--------|

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Item 

|                           |   | Years ended December 31, |      |
|--------------------------------|--------|--------------------------|-----------|
|                           |   | 2010                     |      |   | 2009 |   |   | 2008 |   |   | 2007 |   |   | 2006 |   |
| Revenues                       |   | $                        | 1,516,744 |   |   | $ | 1,336,766 |   |   | $ | 3,655,695 |   |   | $ | 2,052,634 |   |   | $ | 2,098,165 |   |
|                           |   |                     |      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Net income                     |   |                     | 1,147,899 |   |   |   | 925,966 |   |   |   | 3,286,683 |   |   |   | 1,670,151 |   |   |   | 1,770,436 |   |
|                           |   |                     |      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Partners' share of net income: |   |                     |      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|                           |   |                     |      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| General partner                |   |                     | 114,790   |   |   |   | 92,597 |   |   |   | 328,668 |   |   |   | 167,015 |   |   |   | 177,044 |   |
|                           |   |                     |      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Limited partners               |   |                     | 1,033,109 |   |   |   | 833,369 |   |   |   | 2,958,015 |   |   |   | 1,503,136 |   |   |   | 1,593,392 |   |
|                           |   |                     |      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Limited partners'              |   |                     |      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| net income per unit            |   |                     | 51.66     |   |   |   | 41.67 |   |   |   | 147.90 |   |   |   | 75.16 |   |   |   | 79.67 |   |
|                           |   |                     |      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Limited partners' cash         |   |                     |      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| distributions per unit         |   |                     | 61.88     |   |   |   | 43.65 |   |   |   | 167.40 |   |   |   | 78.75 |   |   |   | 94.51 |   |
|                           |   |                     |      |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total assets                   |   | $                        | 2,180,772 |   |   | $ | 2,379,259 |   |   | $ | 2,233,465 |   |   | $ | 2,660,166 |   |   | $ | 2,755,135 |   |

|   |
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|                                      |   | Year Ended December 31, |      |
|-------------------------------------------|--------|-------------------------|-----------|
|                                      |   | 2010                    |      |   | 2009 |   |   | 2008 |   |
| Oil production in barrels                 |   |                    | 20,760    |   |   |   | 23,261 |   |   |   | 23,726 |   |
| Gas production in mcf                     |   |                    | 221,129   |   |   |   | 257,052 |   |   |   | 276,856 |   |
| Total (BOE)                               |   |                    | 57,615    |   |   |   | 66,103 |   |   |   | 69,869 |   |
| Average price per barrel of oil           |   | $                       | 76.22     |   |   | $ | 56.01 |   |   | $ | 97.86 |   |
| Average price per mcf of gas              |   | $                       | 6.27      |   |   | $ | 4.75 |   |   | $ | 10.01 |   |
| Partnership distributions                 |   | $                       | 1,375,019 |   |   | $ | 970,072 |   |   | $ | 3,720,035 |   |
| Limited partner distributions             |   | $                       | 1,237,516 |   |   | $ | 873,059 |   |   | $ | 3,348,035 |   |
| Per unit distribution to limited partners |   | $                       | 61.88     |   |   | $ | 43.65 |   |   | $ | 167.40 |   |
| Number of limited partner units           |   |                    | 20,000    |   |   |   | 20,000 |   |   |   | 20,000 |   |

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|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   | Page   |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------|
| Report of Independent Registered Public Accounting Firm                                                                                                    |   | 18     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |   |
| Balance Sheets                                                                                                                                             |   | 19     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |   |
| Statements of Operations                                                                                                                                   |   | 20     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |   |
| Statements of Changes in Partners' Equity (Deficit)                                                                                                        |   | 21     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |   |
| Statements of Cash Flows                                                                                                                                   |   | 22     |
|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |   |   |
| Notes to Financial Statements                                                                                                                              |   | 23     |

|   |
|--------|

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Report 

|   |
|--------|

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Southwest 

|                                       |   | December 31, |      |
|--------------------------------------------|--------|--------------|-----------|
|                                       |   | 2010         |      |   | 2009 |   |
|                                       |   |         |      |   |   |   |
| Assets                                     |   |         |      |   |   |   |
|                                       |   |         |      |   |   |   |
| Current assets:                            |   |         |      |   |   |   |
| Cash and cash equivalents                  |   | $            | 215,338   |   |   | $ | 142,101 |   |
| Receivable from Managing General Partner   |   |         | 175,107   |   |   |   | 329,695 |   |
| Total current assets                       |   |         | 390,445   |   |   |   | 471,796 |   |
|                                       |   |         |      |   |   |   |   |   |
| Oil and gas properties - using the full-   |   |         |      |   |   |   |   |   |
| cost method of accounting                  |   |         | 8,811,607 |   |   |   | 8,801,548 |   |
| Less accumulated depreciation,             |   |         |      |   |   |   |   |   |
| depletion and amortization                 |   |         | 7,021,280 |   |   |   | 6,894,085 |   |
|                                       |   |         |      |   |   |   |   |   |
| Net oil and gas properties                 |   |         | 1,790,327 |   |   |   | 1,907,463 |   |
|                                       |   | $            | 2,180,772 |   |   | $ | 2,379,259 |   |
|                                       |   |         |      |   |   |   |   |   |
| Liabilities and Partners' Equity (Deficit) |   |         |      |   |   |   |   |   |
|                                       |   |         |      |   |   |   |   |   |
| Asset retirement obligation                |   | $            | 989,300   |   |   | $ | 960,667 |   |
|                                       |   |         |      |   |   |   |   |   |
| Partners' equity (deficit):                |   |         |      |   |   |   |   |   |
| General partner                            |   |         | (735,183  | ) |   |   | (712,470 | ) |
| Limited partners                           |   |         | 1,926,655 |   |   |   | 2,131,062 |   |
|                                       |   |         |      |   |   |   |   |   |
| Total partners' equity                     |   |         | 1,191,472 |   |   |   | 1,418,592 |   |
|                                       |   | $            | 2,180,772 |   |   | $ | 2,379,259 |   |

|   |
|--------|

----

Southwest 

|                                     |   | Years ended December 31, |      |
|------------------------------------------|--------|--------------------------|-----------|
|                                     |   | 2010                     |      |   | 2009 |   |   | 2008 |   |
| Revenues                                 |   |                     |      |   |   |   |   |   |   |
|                                     |   |                     |      |   |   |   |   |   |   |
| Income from net profits interests        |   | $                        | 1,516,050 |   |   | $ | 1,336,340 |   |   | $ | 3,652,756 |   |
| Interest income                          |   |                     | 694       |   |   |   | 342 |   |   |   | 2,939 |   |
| Other                                    |   |                     | -         |   |   |   | 84 |   |   |   | - |   |
|                                     |   |                     | 1,516,744 |   |   |   | 1,336,766 |   |   |   | 3,655,695 |   |
|                                     |   |                     |      |   |   |   |   |   |   |   |   |   |
| Expenses                                 |   |                     |      |   |   |   |   |   |   |   |   |   |
|                                     |   |                     |      |   |   |   |   |   |   |   |   |   |
| Depreciation, depletion and amortization |   |                     | 127,195   |   |   |   | 157,620 |   |   |   | 138,568 |   |
| Accretion expense                        |   |                     | 65,613    |   |   |   | 75,071 |   |   |   | 55,197 |   |
| General and administrative               |   |                     | 176,037   |   |   |   | 178,109 |   |   |   | 175,247 |   |
|                                     |   |                     | 368,845   |   |   |   | 410,800 |   |   |   | 369,012 |   |
|                                     |   |                     |      |   |   |   |   |   |   |   |   |   |
| Net income                               |   | $                        | 1,147,899 |   |   | $ | 925,966 |   |   | $ | 3,286,683 |   |
|                                     |   |                     |      |   |   |   |   |   |   |   |   |   |
| Net income allocated to:                 |   |                     |      |   |   |   |   |   |   |   |   |   |
|                                     |   |                     |      |   |   |   |   |   |   |   |   |   |
| Managing General Partner                 |   | $                        | 114,790   |   |   | $ | 92,597 |   |   | $ | 328,668 |   |
|                                     |   |                     |      |   |   |   |   |   |   |   |   |   |
| Limited partners                         |   | $                        | 1,033,109 |   |   | $ | 833,369 |   |   | $ | 2,958,015 |   |
|                                     |   |                     |      |   |   |   |   |   |   |   |   |   |
| Per limited partner unit                 |   | $                        | 51.66     |   |   | $ | 41.67 |   |   | $ | 147.90 |   |
|                                     |   |                     |      |   |   |   |   |   |   |   |   |   |

|   |
|--------|

----

Southwest 

|                         |   | General |     |   | Limited  |   |       |   |   |
|------------------------------|--------|---------|----------|--------|----------|--------|------------|--------|--------|
|                         |   | Partner |     |   | Partners |   |       | Total  |   |
|                         |   |    |     |   |     |   |       |   |   |
| Balance at December 31, 2007 |   | $       | (664,722 | )      |     | $      | 2,560,772  |   |   | $ | 1,896,050 |   |
|                         |   |    |     |   |     |   |       |   |   |   |   |   |
| Net income                   |   |    | 328,668  |   |     |   | 2,958,015  |   |   |   | 3,286,683 |   |
|                         |   |    |     |   |     |   |       |   |   |   |   |   |
| Distributions                |   |    | (372,000 | )      |     |   | (3,348,035 | )      |   |   | (3,720,035 | ) |
|                         |   |    |     |   |     |   |       |   |   |   |   |   |
| Balance at December 31, 2008 |   |    | (708,054 | )      |     |   | 2,170,752  |   |   |   | 1,462,698 |   |
|                         |   |    |     |   |     |   |       |   |   |   |   |   |
| Net income                   |   |    | 92,597   |   |     |   | 833,369    |   |   |   | 925,966 |   |
|                         |   |    |     |   |     |   |       |   |   |   |   |   |
| Distributions                |   |    | (97,013  | )      |     |   | (873,059   | )      |   |   | (970,072 | ) |
|                         |   |    |     |   |     |   |       |   |   |   |   |   |
| Balance at December 31, 2009 |   |    | (712,470 | )      |     |   | 2,131,062  |   |   |   | 1,418,592 |   |
|                         |   |    |     |   |     |   |       |   |   |   |   |   |
| Net income                   |   |    | 114,790  |   |     |   | 1,033,109  |   |   |   | 1,147,899 |   |
|                         |   |    |     |   |     |   |       |   |   |   |   |   |
| Distributions                |   |    | (137,503 | )      |     |   | (1,237,516 | )      |   |   | (1,375,019 | ) |
|                         |   |    |     |   |     |   |       |   |   |   |   |   |
| Balance at December 31, 2010 |   | $       | (735,183 | )      |     | $      | 1,926,655  |   |   | $ | 1,191,472 |   |

|   |
|--------|

----

Southwest 

|                                                  |   | Years ended December 31, |       |
|-------------------------------------------------------|--------|--------------------------|------------|
|                                                  |   | 2010                     |       |   | 2009 |   |   | 2008 |   |
| Cash flows from operating activities:                 |   |                     |       |   |   |   |   |   |   |
|                                                  |   |                     |       |   |   |   |   |   |   |
| Cash received from income from net profits interests  |   | $                        | 1,623,599  |   |   | $ | 1,201,733 |   |   | $ | 3,870,539 |   |
| Cash paid to suppliers                                |   |                     | (176,037   | ) |   |   | (178,109 | ) |   |   | (175,247 | ) |
| Interest received                                     |   |                     | 694        |   |   |   | 342 |   |   |   | 2,939 |   |
| Other                                                 |   |                     | -          |   |   |   | 84 |   |   |   | - |   |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Net cash provided by operating activities             |   |                     | 1,448,256  |   |   |   | 1,024,050 |   |   |   | 3,698,231 |   |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Cash flows used in financing activities:              |   |                     |       |   |   |   |   |   |   |   |   |   |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Distributions to partners                             |   |                     | (1,375,019 | ) |   |   | (970,072 | ) |   |   | (3,720,035 | ) |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Net increase (decrease) in cash and cash equivalents  |   |                     | 73,237     |   |   |   | 53,978 |   |   |   | (21,804 | ) |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Beginning of year                                     |   |                     | 142,101    |   |   |   | 88,123 |   |   |   | 109,927 |   |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| End of year                                           |   | $                        | 215,338    |   |   | $ | 142,101 |   |   | $ | 88,123 |   |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Reconciliation of net income to net                   |   |                     |       |   |   |   |   |   |   |   |   |   |
| cash provided by operating activities:                |   |                     |       |   |   |   |   |   |   |   |   |   |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Net income                                            |   | $                        | 1,147,899  |   |   | $ | 925,966 |   |   | $ | 3,286,683 |   |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Adjustments to reconcile net income to                |   |                     |       |   |   |   |   |   |   |   |   |   |
| net cash provided by operating activities:            |   |                     |       |   |   |   |   |   |   |   |   |   |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Depreciation, depletion and amortization              |   |                     | 127,195    |   |   |   | 157,620 |   |   |   | 138,568 |   |
| Accretion expense                                     |   |                     | 65,613     |   |   |   | 75,071 |   |   |   | 55,197 |   |
| Settlement of asset retirement obligations            |   |                     |       |   |   |   |   |   |   |   |   |   |
| for plugged and abandoned wells                       |   |                     | (47,039    | ) |   |   | (657 | ) |   |   | - |   |
| Decrease (increase) in receivables                    |   |                     | 154,588    |   |   |   | (133,950 | ) |   |   | 217,783 |   |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Net cash provided by operating activities             |   | $                        | 1,448,256  |   |   | $ | 1,024,050 |   |   | $ | 3,698,231 |   |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |
| Noncash investing and financing activities:           |   |                     |       |   |   |   |   |   |   |   |   |   |
| Increase (decrease) in oil and gas properties – |   |                     |       |   |   |   |   |   |   |   |   |   |
| Asset retirement obligations                          |   | $                        | 10,059     |   |   | $ | 115,486 |   |   | $ | (48,546 | ) |
|                                                  |   |                     |       |   |   |   |   |   |   |   |   |   |

|   |
|--------|

----

Southwest 

| 1. | Organization |
|----|--------------|

|                                                               | Limited  |   | General  |
|--------------------------------------------------------------------|----------|--------|----------|
|                                                               | Partners |   | Partners |
| Interest income on capital contributions                           | 100%     |   | -        |
| Oil and gas sales                                                  | 90%      |   | 10%      |
| All other revenues                                                 | 90%      |   | 10%      |
| Organization and offering costs (1)                                | 100%     |   | -        |
| Amortization of organization costs                                 | 100%     |   | -        |
| Property acquisition costs                                         | 100%     |   | -        |
| Gain/loss on property disposition                                  | 90%      |   | 10%      |
| Operating and administrative costs (2)                             | 90%      |   | 10%      |
| Depreciation, depletion and amortization of oil and gas properties | 90%      |   | 10%      |
| All other costs                                                    | 90%      |   | 10%      |

|   | (1) | All organization costs in excess of 3% of initial capital contributions will be paid by the Managing General Partner and will be treated as a capital contribution.  The Partnership paid the Managing General Partner an amount equal to 3% of initial capital contributions for such organization costs. |
|--------|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (2) | Administrative costs in any year, which exceed 2% of capital contributions shall be paid by the Managing General Partner and will be treated as a capital contribution. |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2. | Summary of Significant Accounting Policies |
|----|--------------------------------------------|

|   |
|--------|

----

| 2. | Summary of Significant Accounting Policies - continued |
|----|--------------------------------------------------------|

|   |
|--------|

----

|   | Southwest Royalties, Inc. Income Fund VI |
|--------|------------------------------------------|

| 2. | Summary of Significant Accounting Policies - continued |
|----|--------------------------------------------------------|

|                                                        |   | 2010   |    |   | 2009   |   |
|-------------------------------------------------------------|--------|--------|---------|--------|--------|--------|
| Beginning of year                                           |   | $      | 960,667 |   |   | $      | 770,767 |   |
| Additional abandonment obligations from new wells           |   |   | -       |   |   |   | 728 |   |
| Reduction of obligations due to wells plugged and abandoned |   |   | (47,039 | )      |   |   | (657 | ) |
| Accretion expense                                           |   |   | 65,613  |   |   |   | 75,071 |   |
| Revisions of previous estimates                             |   |   | 10,059  |   |   |   | 114,758 |   |
| End of year                                                 |   | $      | 989,300 |   |   | $      | 960,667 |   |

|   |
|--------|

----

|   | Southwest Royalties, Inc. Income Fund VI |
|--------|------------------------------------------|

| 4. | Commitments and Contingent Liabilities |
|----|----------------------------------------|

| 5. | Related Party Transactions |
|----|----------------------------|

|   |
|--------|

----

|   | Southwest Royalties, Inc. Income Fund VI |
|--------|------------------------------------------|

| 6. | Oil and Gas Reserves Information (unaudited) |
|----|----------------------------------------------|

| ·   | amends the definition of proved reserves to require the use of average commodity prices based upon the prior 12-month period rather than year-end prices; |
|--------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | expands the type of technologies available to establish reserve estimates and categories; |
|--------------------|-------------------------------------------------------------------------------------------|

| ·   | modifies certain definitions used in estimating proved reserves; |
|--------------------|------------------------------------------------------------------|

| ·   | permits disclosure of probable and possible reserves; and |
|--------------------|-----------------------------------------------------------|

| ·   | permits disclosure of reserves based on different price and cost criteria, such as futures prices or management forecasts. |
|--------------------|----------------------------------------------------------------------------------------------------------------------------|

|                            |   | Oil (bbls) |    |   | Gas (mcf) |   |
|---------------------------------|--------|------------|---------|--------|-----------|--------|
| Total Proved -                  |   |       |    |   |      |   |
| January 1, 2008                 |   |       | 232,000 |   |      |   | 3,570,000 |   |
|                            |   |       |    |   |      |   |   |   |
| New discoveries and extensions  |   |       | 17,000  |   |      |   | 430,000 |   |
| Revisions of previous estimates |   |       | (52,000 | )      |      |   | (542,000 | ) |
| Production                      |   |       | (24,000 | )      |      |   | (277,000 | ) |
| December 31, 2008               |   |       | 173,000 |   |      |   | 3,181,000 |   |
|                            |   |       |    |   |      |   |   |   |
| Revisions of previous estimates |   |       | 23,000  |   |      |   | (776,000 | ) |
| Production                      |   |       | (23,000 | )      |      |   | (257,000 | ) |
| December 31, 2009               |   |       | 173,000 |   |      |   | 2,148,000 |   |
|                            |   |       |    |   |      |   |   |   |
| New discoveries and extensions  |   |       | 35,000  |   |      |   | 536,000 |   |
| Revisions of previous estimates |   |       | 32,000  |   |      |   | (20,000 | ) |
| Production                      |   |       | (21,000 | )      |      |   | (221,000 | ) |
| December 31, 2010               |   |       | 219,000 |   |      |   | 2,443,000 |   |
|                            |   |       |    |   |      |   |   |   |
| Proved developed reserves -     |   |       |    |   |      |   |   |   |
|                            |   |       |    |   |      |   |   |   |
| December 31, 2008               |   |       | 150,000 |   |      |   | 2,592,000 |   |
| December 31, 2009               |   |       | 168,000 |   |      |   | 2,080,000 |   |
| December 31, 2010               |   |       | 183,000 |   |      |   | 1,906,000 |   |

|   |
|--------|

----

| 6. | Oil and Gas Reserves Information (unaudited) – continued |
|----|----------------------------------------------------------------|

|                                          |   | 2010   |       |   | 2009   |   |       | 2008   |   |
|-----------------------------------------------|--------|--------|------------|--------|--------|--------|------------|--------|--------|
| Future cash inflows                           |   | $      | 33,031,000 |   |   | $      | 17,315,000 |   |   | $ | 28,314,000 |   |
| Production, development and abandonment costs |   |   | 13,237,000 |   |   |   | 8,760,000  |   |   |   | 9,377,000 |   |
| Future net cash flows                         |   |   | 19,794,000 |   |   |   | 8,555,000  |   |   |   | 18,937,000 |   |
| 10% annual discount for                       |   |   |       |   |   |   |       |   |   |   |   |   |
| estimated timing of cash flows                |   |   | 8,285,000  |   |   |   | 3,433,000  |   |   |   | 8,372,000 |   |
| Standardized measure of                       |   |   |       |   |   |   |       |   |   |   |   |   |
| discounted future net cash flows              |   | $      | 11,509,000 |   |   | $      | 5,122,000  |   |   | $ | 10,565,000 |   |

|   |
|--------|

----

| 6. | Oil and Gas Reserves Information (unaudited) – continued |
|----|----------------------------------------------------------------|

|                                                   |   | 2010   |       |   | 2009   |   |       | 2008   |   |
|--------------------------------------------------------|--------|--------|------------|--------|--------|--------|------------|--------|--------|
| Sales of oil and gas produced, net of production costs |   | $      | (1,516,000 | )      |   | $      | (1,336,000 | )      |   | $ | (3,653,000 | ) |
| Extensions and discoveries                             |   |   | 2,357,000  |   |   |   | -          |   |   |   | 1,482,000 |   |
| Changes in prices and production costs                 |   |   | 4,493,000  |   |   |   | (4,361,000 | )      |   |   | (5,180,000 | ) |
| Changes of production rates (timing) and others        |   |   | 21,000     |   |   |   | 223,000    |   |   |   | (127,000 | ) |
| Revisions of previous quantities estimates             |   |   | 520,000    |   |   |   | (1,026,000 | )      |   |   | (2,107,000 | ) |
| Accretion of discount                                  |   |   | 512,000    |   |   |   | 1,057,000  |   |   |   | 1,832,000 |   |
| Discounted future net cash flows -                     |   |   |       |   |   |   |       |   |   |   |   |   |
| Beginning of year                                      |   |   | 5,122,000  |   |   |   | 10,565,000 |   |   |   | 18,318,000 |   |
| End of year                                            |   | $      | 11,509,000 |   |   | $      | 5,122,000  |   |   | $ | 10,565,000 |   |

| 7. | Selected Quarterly Financial Results – (unaudited) |
|----|----------------------------------------------------------|

|                                |   | Quarter |    |
|-------------------------------------|--------|---------|---------|
|                                |   | First   |    |   | Second |   |   | Third |   |   | Fourth |   |
| 2010:                               |   |    |    |   |   |   |   |   |   |   |   |   |
| Total revenues                      |   | $       | 493,992 |   |   | $ | 464,214 |   |   | $ | 305,252 |   |   | $ | 253,286 |   |
| Total expenses                      |   |    | 104,701 |   |   |   | 96,788 |   |   |   | 87,258 |   |   |   | 80,098 |   |
| Net income                          |   | $       | 389,291 |   |   | $ | 367,426 |   |   | $ | 217,994 |   |   | $ | 173,188 |   |
|                                |   |    |    |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Net income per limited partner unit |   | $       | 17.52   |   |   | $ | 16.53 |   |   | $ | 9.81 |   |   | $ | 7.80 |   |

|                                |   | Quarter |    |
|-------------------------------------|--------|---------|---------|
|                                |   | First   |    |   | Second |   |   | Third |   |   | Fourth |   |
| 2009:                               |   |    |    |   |   |   |   |   |   |   |   |   |
| Total revenues                      |   | $       | 220,021 |   |   | $ | 231,011 |   |   | $ | 390,281 |   |   | $ | 495,453 |   |
| Total expenses                      |   |    | 103,506 |   |   |   | 103,948 |   |   |   | 105,022 |   |   |   | 98,324 |   |
| Net income                          |   | $       | 116,515 |   |   | $ | 127,063 |   |   | $ | 285,259 |   |   | $ | 397,129 |   |
|                                |   |    |    |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Net income per limited partner unit |   | $       | 5.24    |   |   | $ | 5.72 |   |   | $ | 12.84 |   |   | $ | 17.87 |   |

|   |
|--------|

----

Item 

Item 

| ·   | management of the Managing General Partner has evaluated the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report; |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | this evaluation was conducted under the supervision and with the participation of management of the Managing General Partner, including the chief executive and chief financial officers of the Managing General Partner; and |
|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | it is the conclusion of chief executive and chief financial officers of the Managing General Partner that these disclosure controls and procedures are effective in ensuring that information that is required to be disclosed by the Partnership in reports filed or submitted with the SEC is recorded, processed, summarized and reported within the time periods specified in the rules and forms established by the SEC. |
|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of our assets; |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that our receipts and expenditures are being made only in accordance with authorizations of management and our Board of Directors; and |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | provide reasonable assurance regarding prevention or timely detection of any unauthorized acquisition, use or disposition of our assets that could have a material effect on the financial statements. |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   |
|--------|

----

Item 

|   |
|--------|

----

Item 

11

|   |
|--------|

----

Item 

Item 

Services

| For the Year Ended December 31, |   | 2010   |   |   | 2009   |   |
|---------------------------------|--------|--------|--------|--------|--------|--------|
| Audit Fees                      |   | $      | 19,034 |   |   | $      | 17,163 |   |
| Audit Related Fees              |   |   | -      |   |   |   | - |   |
| Tax Fees                        |   |   | -      |   |   |   | - |   |
| All Other Fees                  |   |   | -      |   |   |   | - |   |
|                            |   |   |   |   |   |   |   |   |
| TOTAL                           |   | $      | 19,034 |   |   | $      | 17,163 |   |

|   |
|--------|

----

Part 

| (a)    | (1)    | Financial Statements:                                                                                                                                                                                |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                 |
|   |   | Included in Part II of this report                                                                                                                                                                   |
|   |   |                                                                                                                                                                                                 |
|   |   | Report of Independent Registered Public Accounting Firm                                                                                                                                              |
|   |   | Balance Sheets                                                                                                                                                                                       |
|   |   | Statements of Operations                                                                                                                                                                             |
|   |   | Statements of Changes in Partners' Equity (Deficit)                                                                                                                                                  |
|   |   | Statements of Cash Flows                                                                                                                                                                             |
|   |   | Notes to Financial Statements                                                                                                                                                                        |
|   |   |                                                                                                                                                                                                 |
|   | (2)    | Schedules required by Article 12 of Regulation S-X are either omitted because they are not applicable or because the required information is shown in the financial statements or the notes thereto. |
|   |   |                                                                                                                                                                                                 |
|   | (3)    | Exhibits:                                                                                                                                                                                            |
|   |   |                                                                                                                                                                                                 |

| 4      | (a)    | Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated December 4, 1986.  (Incorporated by reference from Partnership's Form 10-K for the fiscal year ended December 31, 1986.)                                       |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                         |
|   | (b)    | First Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated January 16,1987.  (Incorporat­ed by reference from Partnership's Form 10-K for the fiscal year ended December 31, 1987.)               |
|   |   |                                                                                                                                                                                                                                                                         |
|   | (c)    | Corrected Second Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated May 6, 1987.  (Incorporated by reference from Partnership's Form 10-K for the fiscal year ended December 31, 1987.)              |
|   |   |                                                                                                                                                                                                                                                                         |
|   | (d)    | Third Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc.  Income Fund VI, dated February 3, 1988 (Incorporated by reference from Partnership's Form 10-K for the fiscal year ended December 31, 1988.)                     |
|   |   |                                                                                                                                                                                                                                                                         |
|   | (e)    | Fourth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated June 30, 1988 (Incorporated by reference from Partnership's Form 10-K for the fiscal year ended December 31, 1988.)                                  |
|   |   |                                                                                                                                                                                                                                                                         |
|   | (f)    | Fifth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated December 30, 1988 (Incorpo­rated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1988.)                     |
|   |   |                                                                                                                                                                                                                                                                         |
|   | (g)    | Sixth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of March 19, 1990.  (Incorporated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1990.)       |
|   |   |                                                                                                                                                                                                                                                                         |
|   | (h)    | Seventh Amendment to Certificate and Agreement of Limited Partner­ship of Southwest Royalties, Inc. Income Fund VI, dated as of December 31, 1990.  (Incorporated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1990.) |
|   |   |                                                                                                                                                                                                                                                                         |
|   | (i)    | Eighth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of September 30, 1991.  (Incorporated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1991.)       |

|   |
|--------|

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|   | (j)    | Ninth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of December 31, 1991.  (Incorporated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1992.)            |
|--------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                            |
|   | (k)    | Tenth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of March 31, 1992.  (Incorporated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1992.)               |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (l)    | Eleventh Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of June 30, 1992.  (Incorporated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1992.)             |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (m)    | Twelfth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of November 23, 1992.  (Incorporated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1992.)          |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (n)    | Thirteenth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of April 22, 1993.  (Incorporated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1993.)          |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (o)    | Fourteenth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of September 30, 1993.  (Incorporated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1993.)      |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (p)    | Fifteenth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of December 31, 1993.  (Incorpo­rated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1993.)  |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (q)    | Sixteenth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of July 26, 1994.  (Incorporated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1994.)            |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (r)    | Seventeenth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of January 18, 1995.  (Incorpo­rated by reference from the Partnership's Form 10-K for the fiscal year ended December 31, 1994.) |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (s)    | Eighteenth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of July 26, 1995.                                                                                                                                |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (t)    | Nineteenth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of January 29, 1996.                                                                                                                             |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (u)    | Twentieth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of April 30, 1996.                                                                                                                                |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (v)    | Twenty First Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of September 30, 1996.                                                                                                                         |
|   |   |                                                                                                                                                                                                                                                                            |
|   | (w)    | Twenty Second Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of January 15, 1997.                                                                                                                          |

|   |
|--------|

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|   | (x)    | Twenty Third Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc.  Income Fund VI, dated as of May 10, 1997.                  |
|--------|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                          |
|   | (y)    | Twenty Fourth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of January 30, 1998.                        |
|   |   |                                                                                                                                                                          |
|   | (z)    | Twenty Fifth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of July 27, 1998.                            |
|   |   |                                                                                                                                                                          |
|   | (aa)   | Twenty Sixth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc.  Income Fund VI, dated as of December 22, 1998.             |
|   |   |                                                                                                                                                                          |
|   | (bb)   | Twenty Seventh Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of February 25, 1999.                      |
|   |   |                                                                                                                                                                          |
|   | (cc)   | Twenty Eighth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of July 27, 1999.                           |
|   |   |                                                                                                                                                                          |
|   | (dd)   | Twenty Ninth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of February 10, 2000.                        |
|   |   |                                                                                                                                                                          |
|   | (ee)   | Thirtieth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of April 26, 2000.                              |
|   |   |                                                                                                                                                                          |
|   | (ff)   | Thirty First Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of September 13, 2000.                       |
|   |   |                                                                                                                                                                          |
|   | (gg)   | Thirty Second Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of February 20, 2001.                       |
|   |   |                                                                                                                                                                          |
|   | (hh)   | Thirty Third Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of July 16, 2001.                            |
|   |   |                                                                                                                                                                          |
|   | (ii)   | Thirty Fourth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of January 11, 2002.                        |
|   |   |                                                                                                                                                                          |
|   | (jj)   | Thirty Fifth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of June 3, 2002.                             |
|   |   |                                                                                                                                                                          |
|   | (kk)   | Thirty Sixth Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of July 30, 2002.                            |
|   |   |                                                                                                                                                                          |
|   | (ll)   | Thirty Seventh Amendment to Certificate and Agreement of Limited Partnership of Southwest Royalties, Inc. Income Fund VI, dated as of February 20, 2003.                      |
|   |   |                                                                                                                                                                          |
|   | 31.1   | Rule 13a-14(a)/15d-14(a) Certification                                                                                                                                        |
|   | 31.2   | Rule 13a-14(a)/15d-14(a) Certification                                                                                                                                        |
|   | 32.1   | Certification of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 |

|   |
|--------|

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Glossary 

|   |
|--------|

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|   |
|--------|

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Signatures

|   | Southwest Royalties, Inc. Income Fund VI, a |
|--------|---------------------------------------------|
|   | Tennessee limited partnership               |
|   |                                        |
| By:    | Southwest Royalties, Inc., Managing         |
|   | General Partner                             |
|   |                                        |
|   |                                        |
| By:    | /s/ Mel G. Riggs                            |
|   | Mel G. Riggs                                |
|   | President and Chief Executive Officer       |
|   |                                        |
| Date:  | March 29, 2011                              |

|                                                                                  |   |                                                                                  |
|---------------------------------------------------------------------------------------|--------|---------------------------------------------------------------------------------------|
| /s/ Clayton W. Williams                                                               |   | /s/ Mel G. Riggs                                                                      |
| Clayton W. Williams, Chairman of the Board                                            |   | Mel G. Riggs, President, Chief Executive                                              |
| and a Director                                                                        |   | Officer and a Director                                                                |
|                                                                                  |   |                                                                                  |
| Date:           March 29, 2011 |   | Date:           March 29, 2011 |
|                                                                                  |   |                                                                                  |
|                                                                                  |   |                                                                                  |
|                                                                                  |   |                                                                                  |
|                                                                                  |   |                                                                                  |
| /s/ Michael L. Pollard                                                                |   |                                                                                  |
| Michael L. Pollard, Senior Vice President                                             |   |                                                                                  |
| and Chief Financial Officer                                                           |   |                                                                                  |
|                                                                                  |   |                                                                                  |
| Date:           March 29, 2011 |   |                                                                                  |
|                                                                                  |   |                                                                                  |
|                                                                                  |   |                                                                                  |