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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





Form 10-Q





(Mark One)

|x | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ---------------------------------------------------------------------------------------

For the quarterly period ended June 30, 2012

OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

For the transition period
from            to

Commission File Number: 001-35122





SANDRIDGE
MISSISSIPPIAN TRUST I

(Exact name of registrant as specified in its charter)







|                                                                                                      |  |                                     
|----------------------------------------------------------------------------------------------------- |  | ------------------------------------
|Delaware                                                                                              |  | 27-6990649                          
|(State or other jurisdiction of
incorporation or organization)                                        |  | (I.R.S. Employer Identification No.)
|                                                                                                      | 
|The Bank of New York Mellon Trust Company, N.A., Trustee 919 Congress Avenue, Suite
500 Austin, Texas |  | 78701                               
|(Address of principal executive offices)                                                              |  | (Zip Code)                          

Registrants telephone number, including area code:

(855) 802-1092





Indicate by
check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant
was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    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 whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller
reporting company. See the definitions of large accelerated filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act.



|                        |  |                                                  |  |                           |  |  
|----------------------- |  | ------------------------------------------------ |  | ------------------------- |  | -
|Large accelerated filer |  |  ̈                                                |  | Accelerated filer         |  |  ̈
|                        |  |                                                  | 
|Non-accelerated filer   |  | x  (Do not check if a smaller reporting company) |  | Smaller reporting company |  |  ̈

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

As of August 7, 2012, 21,000,000 Common Units and 7,000,000 Subordinated Units of Beneficial Interest in SandRidge Mississippian
Trust I were outstanding.









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SANDRIDGE MISSISSIPPIAN TRUST I

FORM 10-Q

Quarter Ended June 30, 2012



|                              |  |                                                                                    |  |   
|----------------------------- |  | ---------------------------------------------------------------------------------- |  | --
|PART I. FINANCIAL INFORMATION |  |                                                                                   
|                              |  |                                                                                   
|ITEM 1.                       |  | Financial Statements (Unaudited)                                                   |  | 4 
|                              |  | Statements of Assets and Trust Corpus                                              |  | 4 
|                              |  | Statements of Distributable Income                                                 |  | 5 
|                              |  | Statements of Changes in Trust Corpus                                              |  | 6 
|                              |  | Notes to Financial Statements                                                      |  | 7 
|ITEM 2.                       |  | Trustees Discussion and Analysis of Financial Condition and Results of Operations |  | 12
|ITEM 3.                       |  | Quantitative and Qualitative Disclosures About Market Risk                         |  | 16
|ITEM 4.                       |  | Controls and Procedures                                                            |  | 17
|                              | 
|PART II. OTHER INFORMATION    |  |                                                                                   
|                              |  |                                                                                   
|ITEM 1A.                      |  | Risk Factors                                                                       |  | 18
|ITEM 6.                       |  | Exhibits                                                                           |  | 18

All references to we, us, our, or the Trust refer to
SandRidge Mississippian Trust I. References to SandRidge refer to SandRidge Energy, Inc., and where the context requires, its subsidiaries. The royalty interests conveyed by SandRidge from its interests in certain properties in the
Mississippian formation in Oklahoma and held by the Trust are referred to as the Royalty Interests.



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DISCLOSURES REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q (Quarterly Report) includes forward-looking statements about the Trust,
SandRidge and other matters discussed herein that are subject to risks and uncertainties within the meaning of Section 27A of the Securities Act of 1933, as amended (the Securities Act), and Section 21E of the Securities
Exchange Act of 1934, as amended (the Exchange Act). All statements other than statements of historical fact included in this document, including, without limitation, statements under "Trustees Discussion and Analysis of Financial
Condition and Results of Operations" in Item 2 of Part I and elsewhere herein regarding the Trusts or SandRidges plans and objectives for future operations, information regarding target distributions and statements regarding the
number of development wells to be completed in future periods, are forward-looking statements. Actual outcomes and results may differ materially from those projected. Our forward-looking statements are generally accompanied by words such as
estimate, target, project, predict, believe, expect, anticipate, potential, could, may, foresee, plan,
goal, should, intend or other words that convey the uncertainty of future events or outcomes. We have based these forward-looking statements on our current expectations and assumptions about future events. These
statements are based on certain assumptions made by us in light of our experience and our perception of historical trends, current conditions and expected future developments as well as other factors we believe are appropriate under the
circumstances. However, whether actual results and developments will conform with our expectations and predictions is subject to a number of risks and uncertainties, including the risk factors discussed in Item 1A of the Trusts Annual
Report on Form 10-K for the fiscal year ended December 31, 2011 (the 2011 Form 10-K), which could affect the future results of the energy industry in general, and the Trust and SandRidge in particular, and could cause those results
to differ materially from those expressed in such forward-looking statements. The actual results or developments anticipated may not be realized or, even if substantially realized, they may not have the expected consequences to or effects on
SandRidges business or the Trusts results. Such statements are not guarantees of future performance and actual results or developments may differ materially from those projected in such forward-looking statements. The Trust undertakes no
obligation to publicly update or revise any forward-looking statements.



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PART I. Financial Information

ITEM 1.Financial Statements

SANDRIDGE MISSISSIPPIAN TRUST I

STATEMENTS OF
ASSETS AND TRUST CORPUS

(In thousands, except unit data)



|                                                                                                                                     |  |              |         |   |                  |   |         |  
|------------------------------------------------------------------------------------------------------------------------------------ |  | ------------ | ------- | - | ---------------- | - | ------- | -
|                                                                                                                                     |  | June 30,2012 |         |   | December 31,2011 |  
|                                                                                                                                     |  | (Unaudited)  |        
|ASSETS                                                                                                                               | 
|Cash and cash equivalents                                                                                                            |  | $            | 1,156   |   |                  | $ | 1,336   |  
|                                                                                                                                     |  |             
|Investment in royalty interests                                                                                                      |  |              | 308,964 |   |                  |   | 308,964 |  
|Less: accumulated amortization                                                                                                       |  |              | (35,366 | ) |                  |   | (23,844 | )
|                                                                                                                                     |  |              |         |   |                  |   |         |  
|Net investment in royalty interests                                                                                                  |  |              | 273,598 |   |                  |   | 285,120 |  
|                                                                                                                                     |  |              |         |   |                  |   |         |  
|Total assets                                                                                                                         |  | $            | 274,754 |   |                  | $ | 286,456 |  
|                                                                                                                                     |  |              |         |   |                  |   |         |  
|TRUST CORPUS                                                                                                                         | 
|                                                                                                                                     |  |             
|Trust corpus, 21,000,000 common units and 7,000,000 subordinated units issued and outstanding at June 30, 2012 and
December 31, 2011 |  | $            | 274,754 |   |                  | $ | 286,456 |  
|                                                                                                                                     |  |              |         |   |                  |   |         |  

The accompanying notes are an integral part of these financial statements.



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SANDRIDGE MISSISSIPPIAN TRUST I

STATEMENTS OF DISTRIBUTABLE INCOME

(In thousands, except unit and per unit data)



|                                                                        |  |                                 |          |   |                               |   |          |  
|----------------------------------------------------------------------- |  | ------------------------------- | -------- | - | ----------------------------- | - | -------- | -
|                                                                        |  | Three Months EndedJune 30, 2012 |          |   | Six Months EndedJune 30, 2012 |  
|                                                                        |  | (Unaudited)                     |         
|Revenues                                                                |  |                                 |          |   |                               |   |          |  
|Royalty income                                                          |  | $                               | 21,124   |   |                               | $ | 43,129   |  
|Derivative settlements, net                                             |  |                                 | 2,260    |   |                               |   | 4,834    |  
|                                                                        |  |                                 |          |   |                               |   |          |  
|Total revenues                                                          |  |                                 | 23,384   |   |                               |   | 47,963   |  
|Expenses                                                                |  |                                 |          |   |                               |   |          |  
|Post-production expenses                                                |  |                                 | 785      |   |                               |   | 1,684    |  
|Production taxes                                                        |  |                                 | 220      |   |                               |   | 445      |  
|Trust administrative expenses                                           |  |                                 | 291      |   |                               |   | 912      |  
|Cash reserves used for current Trust expenses, net of amounts withheld  |  |                                 | (6       | ) |                               |   | (180     | )
|                                                                        |  |                                 |          |   |                               |   |          |  
|Total expenses                                                          |  |                                 | 1,290    |   |                               |   | 2,861    |  
|                                                                        |  |                                 |          |   |                               |   |          |  
|Income available for distribution prior to incentive calculation        |  |                                 | 22,094   |   |                               |   | 45,102   |  
|Less: Incentive distribution to SandRidge Energy, Inc.                  |  |                                 | 57       |   |                               |   | 920      |  
|                                                                        |  |                                 |          |   |                               |   |          |  
|Distributable income available to unitholders                           |  | $                               | 22,037   |   |                               | $ | 44,182   |  
|                                                                        |  |                                 |          |   |                               |   |          |  
|Distributable income per unit (28,000,000 units issued and outstanding) |  | $                               | 0.787037 |   |                               | $ | 1.577945 |  
|                                                                        |  |                                 |          |   |                               |   |          |  

The accompanying notes are an integral part of these financial statements.



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SANDRIDGE MISSISSIPPIAN TRUST I

STATEMENTS OF CHANGES IN TRUST CORPUS

(In thousands)



|                                                       |  |                           |         |   |      |   |          |  
|------------------------------------------------------ |  | ------------------------- | ------- | - | ---- | - | -------- | -
|                                                       |  | Six Months Ended June 30, |        
|                                                       |  | 2012                      |         |   | 2011 |  
|                                                       |  | (Unaudited)               |        
|Trust corpus, beginning of period                      |  | $                         | 286,456 |   |      | $ | 1        |  
|Issuance of Trust units                                |  |                           |        |   |      |   | 336,893  |  
|Conveyance of royalty interests                        |  |                           |        |   |      |   | 308,964  |  
|Consideration paid for conveyance of royalty interests |  |                           |        |   |      |   | (336,893 | )
|Amortization of investment in royalty interests        |  |                           | (11,522 | ) |      |   | (11,322  | )
|Net cash reserves (used) withheld                      |  |                           | (180    | ) |      |   | 22       |  
|Distributable income                                   |  |                           | 44,182  |   |      |   |         |  
|                                                       |  |                          
|Distributions paid or payable to unitholders           |  |                           | (44,182 | ) |      |   |         |  
|                                                       |  |                           |         |   |      |   |          |  
|Trust corpus, end of period                            |  | $                         | 274,754 |   |      | $ | 297,665  |  
|                                                       |  |                           |         |   |      |   |          |  

The accompanying notes are an integral part of these financial statements.



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SANDRIDGE MISSISSIPPIAN TRUST I

NOTES TO FINANCIAL STATEMENTS

(Unaudited)

1. Organization of Trust

SandRidge Mississippian Trust I (the Trust) is a statutory trust formed on December 30, 2010 under the
Delaware Statutory Trust Act pursuant to a trust agreement by and among SandRidge Energy, Inc. (SandRidge), as Trustor, The Bank of New York Mellon Trust Company, N.A., as Trustee (the Trustee), and The Corporation Trust
Company, as Delaware Trustee (the Delaware Trustee). The trust agreement was amended and restated by SandRidge, the Trustee and the Delaware Trustee on April 12, 2011. References in this report to the trust agreement are
to the amended and restated trust agreement.

The Trust was created to acquire and hold Royalty Interests in specified oil and
natural gas properties located in the Mississippian formation in Alfalfa, Garfield, Grant, Major and Woods counties in Oklahoma (the Underlying Properties). The Royalty Interests were conveyed by SandRidge to the Trust concurrent with
the initial public offering of the Trusts common units in April 2011. As consideration for conveyance of the Royalty Interests, the Trust remitted the proceeds of the offering, along with 3,750,000 Trust common units and 7,000,000 Trust
subordinated units, to certain wholly owned subsidiaries of SandRidge. At June 30, 2012, SandRidge owned 1,216,063 Trust common units and 7,000,000 Trust subordinated units.

The Royalty Interests entitle the Trust to receive 90% of the proceeds (after deducting post-production costs and any applicable taxes)
from the sale of oil, including natural gas liquids, and natural gas production attributable to SandRidges net revenue interest in 36 wells producing at December 31, 2010 and one additional well undergoing completion operations at that
time (together, the Initial Wells), and 50% of the proceeds (after deducting post-production costs and any applicable taxes) from the sale of oil, including natural gas liquids, and natural gas production attributable to SandRidges
net revenue interest in 123 development wells to be drilled (the Trust Development Wells) within an area of mutual interest (AMI) beginning on January 1, 2011, the effective date of the conveyance. Although the Trust was
formed on December 30, 2010, conveyance of the Royalty Interests did not occur until April 2011 and no proceeds from the sale of oil and natural gas production were received by the Trust until August 2011.

As specified in the development agreement executed by the Trust with SandRidge (see Note 5), SandRidge is credited for having drilled one
full Trust Development Well if the well is drilled and perforated for completion with a minimum perforated length of 2,500 feet in a specified target formation and SandRidges net revenue interest in the well is equal to 57.0%. The actual
number of wells required to be drilled may increase or decrease in proportion to SandRidges net revenue interest and the perforated length of each well. At June 30, 2012, the Trusts properties consisted of Royalty Interests in
(a) the Initial Wells, (b) 70 additional wells (equivalent to approximately 79 Trust Development Wells under the development agreement as described in Note 5) that were drilled and perforated for completion between December 31, 2010
and June 30, 2012, and (c) the equivalent of approximately 44 Trust Development Wells to be drilled within the AMI.

The Trust makes quarterly cash distributions of substantially all of its cash receipts, after deducting amounts for the Trusts
administrative expenses and cash reserves withheld by the Trustee, on or about 60 days following the completion of each quarter. Due to the timing of the payment of production proceeds to the Trust, each distribution covers production from a
three-month period consisting of the first two months of the most recently ended quarter and the final month of the quarter preceding it.

The common and subordinated units have identical rights and privileges, except with respect to their rights to receive distributions. The subordinated units, all of which are held by SandRidge, constitute
25% of the Trust units issued and outstanding. The subordinated units are entitled to receive pro rata distributions from the Trust each quarter if and to the extent there is sufficient cash to provide a cash distribution on the common units that is
no less than 80% of the target distribution for the corresponding quarter (Subordination Threshold). If there is not sufficient cash to fund such a distribution on all of the common units, the distribution to be made with respect to the
subordinated units is reduced or eliminated for such quarter in order to make a distribution, to the extent possible, of up to the Subordination Threshold amount on all of the common units. In exchange for agreeing to subordinate a portion of its
Trust units, and in order to provide additional financial incentive to SandRidge to satisfy its drilling obligation, SandRidge is entitled to receive incentive distributions equal to 50% of the amount by which the cash available for distribution on
all of the Trust units in any quarter exceeds 120% of the target distribution for such quarter (Incentive Threshold). At the end of the fourth full calendar quarter following SandRidges satisfaction of its drilling obligation with
respect to the Trust Development Wells, the subordinated units will automatically convert into common units on a one-for-one basis and SandRidges right to receive incentive distributions will terminate. After such time, the common units will
no longer have the protection of the Subordination Threshold, and all Trust unitholders will share on a pro rata basis in the Trusts distributions.



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SANDRIDGE MISSISSIPPIAN TRUST I

NOTES TO FINANCIAL STATEMENTS - CONTINUED

(Unaudited)



2. Basis of Presentation and Summary of Significant Accounting Policies

Basis of Accounting. The financial statements of the Trust differ from financial statements prepared in
accordance with accounting principles generally accepted in the United States of America (GAAP) as the Trust records revenues when cash is received (rather than when earned) and expenses when paid (rather than when incurred) and may also
establish certain cash reserves for contingencies, which would not be accrued in financial statements prepared in accordance with GAAP. This comprehensive basis of accounting other than GAAP corresponds to the accounting permitted for royalty trusts
by the Securities and Exchange Commission (SEC) as specified by Staff Accounting Bulletin Topic 12:E, Financial Statements of Royalty Trusts. Amortization of investment in royalty interests, calculated on a unit-of-production
basis, and any impairments are charged directly to trust corpus.

The Trust is treated for federal and applicable state income
tax purposes as a partnership. For U.S. federal income tax purposes, a partnership is not a taxable entity and incurs no U.S. federal income tax liability. With respect to state taxation, a partnership is typically treated in the same manner as it
is for U.S. federal income tax purposes.

Interim Financial Statements. The accompanying unaudited financial statements
have been prepared in accordance with the accounting policies stated in the audited financial statements contained in the 2011 Form 10-K and reflect all adjustments that are, in the opinion of the Trustee, necessary to state fairly the information
in the Trusts unaudited interim financial statements. The accompanying statement of assets and trust corpus as of December 31, 2011 has been derived from audited financial statements. The unaudited financial statements should be read in
conjunction with the financial statements and notes thereto included in the 2011 Form 10-K.

Risks and Uncertainties.The Trusts revenue and distributions are substantially dependent upon the prevailing and future prices for oil and natural gas, each of which depends on numerous factors beyond the Trusts control such as overall oil and natural gas
production and inventories in relevant markets, economic conditions, the global political environment, regulatory developments and competition from other energy sources. Oil and natural gas prices historically have been volatile and may be subject
to significant fluctuations in the future. The Trusts derivative arrangements serve to mitigate a portion of the effect of this price volatility. See Note 5 for a discussion of the Trusts open oil and natural gas commodity derivative
contracts.

3. Distributions to Unitholders

The Trust makes quarterly cash distributions of substantially all of its cash receipts, after deducting amounts for the
Trusts administrative expenses and cash reserves withheld by the Trustee, on or about 60 days following the completion of each quarter. Other than the first distribution, which covered production for the five-month period from January 1,
2011 to May 31, 2011, distributions cover a three-month period. Distributions to unitholders are recorded when declared. See Note 6 for discussion of the Trusts quarterly distribution to be paid in August 2012. A summary of distributions
declared and paid to unitholders during 2011 and the six-month period ended June 30, 2012 is as follows:



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SANDRIDGE MISSISSIPPIAN TRUST I

NOTES TO FINANCIAL STATEMENTS - CONTINUED

(Unaudited)



|                      |  |                          |                                      |  |               |  |                  |           |  |  |                       |  |  |                      |      |  |  |   |          | 
|--------------------- |  | ------------------------ | ------------------------------------ |  | ------------- |  | ---------------- | --------- |  |  | --------------------- |  |  | -------------------- | ---- |  |  | - | -------- | 
|                      |  | CoveredProduction
Period |                                      |  | Date Declared |  |                  | Date Paid |  |  | TotalDistributionPaid |  |  | DistributionPer Unit |     
|                      |  |                          |                                      |  |               |  |                  |           |  |  | (in millions)         |  |  |                      |     
|Calendar Quarter 2011 |  |                          |                                      |  |               |  |                  |           |  |  |                       |  |  |                      |      |  |  |   |          | 
|First Quarter         |  |                          | N/A                                  |  |               |  | N/A              |           |  |  | N/A                   |  |  |                      | N/A  |  |  |   | N/A      | 
|Second Quarter        |  |                          | N/A                                  |  |               |  | N/A              |           |  |  | N/A                   |  |  |                      | N/A  |  |  |   | N/A      | 
|Third Quarter         |  |                          | January 1  May 31, 2011             |  |               |  | July 22, 2011    |           |  |  | August 30, 2011       |  |  | $                    | 29.9 |  |  | $ | 1.068461 | 
|Fourth Quarter        |  |                          | June 1  August 31, 2011             |  |               |  | October 28, 2011 |           |  |  | November 30, 2011     |  |  | $                    | 22.9 |  |  | $ | 0.816423 | 
|Calendar Quarter 2012 |  |                          |                                      |  |               |  |                  |           |  |  |                       |  |  |                      |      |  |  |   |          | 
|First Quarter         |  |                          | September 1  November 30, 2011      |  |               |  | February 2, 2012 |           |  |  | February 29, 2012     |  |  | $                    | 22.1 |  |  | $ | 0.790905 | 
|Second Quarter        |  |                          | December 1, 2011  February 29, 2012 |  |               |  | April 30, 2012   |           |  |  | May 30, 2012          |  |  | $                    | 22.0 |  |  | $ | 0.787033 | 

4. Loan Commitment

Pursuant to the trust agreement, if at any time the Trusts cash on hand (including available cash reserves) is
not sufficient to pay the Trusts ordinary course administrative expenses as they become due, SandRidge will loan funds to the Trust necessary to pay such expenses. Any funds loaned by SandRidge pursuant to this commitment will be limited to
the payment of current accounts payable or other obligations to trade creditors in connection with obtaining goods or services or the payment of other accrued current liabilities arising in the ordinary course of the Trusts business, and may
not be used to satisfy Trust indebtedness, or to make distributions. If SandRidge loans funds pursuant to this commitment, no further distributions will be made to unitholders (except in respect of any previously determined quarterly cash
distribution amount) until such loan is repaid. Any such loan will be on an unsecured basis, and the terms of such loan will be substantially the same as those which would be obtained in an arms length transaction between SandRidge and an
unaffiliated third party. There was no such loan outstanding with SandRidge at June 30, 2012 or December 31, 2011.

5. Related Party Transactions

Trustee Administrative Fee. Under the terms of the trust agreement, the Trust pays an annual administrative
fee of $150,000 to the Trustee, which will be adjusted for inflation by no more than 3% in any year beginning in 2017. During the three and six-month periods ended June 30, 2012, the Trustees administrative fees were equal to
approximately $38,000 and $75,000, respectively.

Registration Rights Agreement. The Trust is party to a
registration rights agreement pursuant to which the Trust has agreed to register the offering of the Trust units held by SandRidge and certain of its affiliates and permitted transferees upon request by SandRidge.

Development Agreement. The Trust is party to a development agreement with SandRidge, effective January 1, 2011, that
obligates SandRidge to drill, or cause to be drilled, the Trust Development Wells by December 31, 2015. Additionally, SandRidge agreed not to drill and complete, or allow another person within its control to drill and complete, any other well
in the AMI other than the Trust Development Wells until SandRidge has fulfilled its drilling obligation.

A wholly owned
subsidiary of SandRidge granted to the Trust a lien (Drilling Support Lien) covering its interest in the AMI (except its interest in the Initial Wells) in order to secure the estimated amount of the drilling costs for the Trusts
interests in the undeveloped Underlying Properties. The initial amount recoverable by the Trust pursuant to the Drilling Support Lien could not exceed approximately $166.1 million, subject to adjustment as described below. As SandRidge fulfills its
drilling obligation over time, the total amount that may be recovered is proportionately reduced and the Trust Development Wells drilled and perforated for completion are released from the lien. If SandRidge does not fulfill its drilling obligation
by December 31, 2015, the Trust may foreclose on any remaining interest in the AMI that is subject to the Drilling Support Lien. Any amounts actually recovered in a foreclosure action would be applied to the completion of SandRidges
drilling obligation and would not result in a distribution to the



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SANDRIDGE MISSISSIPPIAN TRUST I

NOTES TO FINANCIAL STATEMENTS - CONTINUED

(Unaudited)



Trusts unitholders. At June 30, 2012, SandRidge had drilled and perforated for completion approximately 79 equivalent Trust Development Wells, and, accordingly, the maximum amount
potentially recoverable under the Drilling Support Lien had been reduced to approximately $59.9 million.

Administrative
Services Agreement. The Trust is party to an administrative services agreement with SandRidge, effective January 1, 2011, that obligates the Trust to pay SandRidge an annual administrative services fee for accounting, tax preparation,
bookkeeping and informational services to be performed by SandRidge on behalf of the Trust. For its services under the administrative services agreement, SandRidge receives an annual fee of $200,000, which is payable in equal quarterly installments
and will remain fixed for the life of the Trust. SandRidge is also entitled to receive reimbursement for its out-of-pocket fees, costs and expenses incurred in connection with the provision of any of the services under this agreement. The
administrative services agreement will terminate on the earliest to occur of: (i) the date the Trust shall have dissolved and commenced winding up in accordance with the trust agreement, (ii) the date that all of the Royalty Interests have
been terminated or are no longer held by the Trust, (iii) pertaining to services to be provided with respect to any Underlying Properties transferred by SandRidge, the date that either SandRidge or the Trustee may designate by delivering
90-days prior written notice, provided that SandRidge's drilling obligation has been completed and the transferee of such Underlying Properties assumes responsibility to perform the services in place of SandRidge and (iv) a date mutually
agreed to by SandRidge and the Trustee. During the three and six-month periods ended June 30, 2012, the Trust paid SandRidges administrative fees equal to $50,000 and 100,000, respectively.

Derivatives Agreement. The Trust is party to a derivatives agreement with SandRidge, effective April 1, 2011, that
provides the Trust with the economic effect of certain oil and natural gas derivative contracts entered into by SandRidge with third parties. The underlying commodity derivative contracts cover volumes of oil and natural gas production through
December 31, 2015. Under the derivatives agreement, SandRidge pays the Trust amounts it receives from its counterparties and the Trust pays SandRidge any amounts that SandRidge is required to pay such counterparties. The Trust did not bear any
costs related to the establishment of the underlying contracts. The Trust does not have the ability to enter into its own derivative contracts. The commodity derivative contracts underlying the derivatives agreements consist of fixed price swaps and
collars, which are described below:



|                   |  |                                                                                                                                                                                                                                                                                                                
|------------------ |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Fixed price swaps: |  | The Trust receives a fixed price for the contract and pays a floating market price over a specified period for a contracted volume.                                                                                                                                                                            
|                   | 
|Collars:           |  | Contain a fixed floor price (put) and a fixed ceiling price (call). If the market price exceeds the call strike price or falls below the put strike price, the Trust receives the
fixed price and pays the market price. If the market price is between the call and the put strike price, no payments are due.

The following tables present, as of June 30, 2012, the notional amount and weighted average fixed
price or collar range of the open contracts underlying the derivatives agreement.

Oil  Price Swaps



|                             |  |                |     |  |                          |   |        | 
|---------------------------- |  | -------------- | --- |  | ------------------------ | - | ------ | 
|                             |  | Notional(MBbl) |     |  | Weighted Avg.Fixed
Price |  
|July 2012  December 2012    |  |                | 228 |  |                          | $ | 104.15 | 
|January 2013  December 2013 |  |                | 488 |  |                          | $ | 102.07 | 
|January 2014  December 2014 |  |                | 541 |  |                          | $ | 100.94 | 
|January 2015  December 2015 |  |                | 468 |  |                          | $ | 101.07 | 

Natural Gas  Collars



|                             |  |                 |       |  |              |   |              | 
|---------------------------- |  | --------------- | ----- |  | ------------ | - | ------------ | 
|                             |  | Notional(MMBtu) |       |  | Collar Range |  
|July 2012  December 2012    |  |                 | 402   |  |              | $ | 4.00 - $6.20 | 
|January 2013  December 2013 |  |                 | 858   |  |              | $ | 4.00 - $7.15 | 
|January 2014  December 2014 |  |                 | 937   |  |              | $ | 4.00 - $7.78 | 
|January 2015  December 2015 |  |                 | 1,010 |  |              | $ | 4.00 - $8.55 | 



10



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##### Table of Contents

SANDRIDGE MISSISSIPPIAN TRUST I

NOTES TO FINANCIAL STATEMENTS - CONTINUED

(Unaudited)



6. Subsequent Events

Distribution to Unitholders.On July 26, 2012, the Trust declared a cash distribution of $0.727696 per unit
covering production for the three-month period from March 1, 2012 to May 31, 2012 for record holders as of August 14, 2012. The distribution will be paid on or about August 29, 2012. Distributable income for March 1, 2012 to
May 31, 2012 was calculated as follows (in thousands, except for unit and per unit amounts):



|                                                                        |  |   |          | 
|----------------------------------------------------------------------- |  | - | -------- | 
|Revenues                                                                |  |   |          | 
|Royalty income                                                          |  | $ | 18,317   | 
|Derivative settlements, net                                             |  |   | 3,270    | 
|                                                                        |  |   |          | 
|Total revenues                                                          |  |   | 21,587   | 
|                                                                        |  |   |          | 
|Expenses                                                                |  |   |          | 
|Post-production expenses                                                |  |   | 743      | 
|Production taxes                                                        |  |   | 184      | 
|Cash reserves withheld by Trustee (1)                                   |  |   | 285      | 
|                                                                        |  |   |          | 
|Total expenses                                                          |  |   | 1,212    | 
|                                                                        |  |   |          | 
|Distributable income available to unitholders                           |  | $ | 20,375   | 
|                                                                        |  |   |          | 
|Distributable income per unit (28,000,000 units issued and outstanding) |  | $ | 0.727696 | 
|                                                                        |  |   |          | 



|(1) | Includes amounts withheld for payment of future Trust administrative expenses.
|--- | ------------------------------------------------------------------------------



11



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##### Table of Contents

ITEM 2.Trustees Discussion and Analysis of Financial
Condition and Results of Operations

Introduction

The following discussion and analysis is intended to help the reader understand the Trusts financial condition, results of operations, liquidity and capital resources. This discussion and analysis
should be read in conjunction with the Trusts unaudited financial statements and the accompanying notes included in this Quarterly Report and the Trusts audited financial statements and the accompanying notes included in the 2011 Form
10-K.

Overview

The Trust is a statutory trust created on December 30, 2010 under the Delaware Statutory Trust Act. The business and affairs of the Trust are managed by the Trustee and, as necessary, the
Delaware Trustee. The Trusts purpose is to hold the Royalty Interests, to distribute to the Trust unitholders cash that the Trust receives in respect of the Royalty Interests and the derivatives agreement (described in Note 5 to the unaudited
financial statements contained in Part I, Item 1 of this Quarterly Report) and to perform certain administrative functions in respect of the Royalty Interests and the Trust units. Other than the foregoing activities, the Trust does not conduct
any operations or activities. The Trustee has no involvement with, control or authority over, or responsibility for, any aspect of the operations on or relating to the properties in which the Trust has an interest. The Trust derives all or
substantially all of its income and cash flow from the Royalty Interests and the derivatives agreement. The Trust is treated as a partnership for federal income tax purposes.

Properties.At June 30, 2012, the Trusts properties consisted of Royalty Interests in (a) the Initial Wells, (b) 70 additional wells (equivalent to approximately 79 Trust
Development Wells under the development agreement as described below) that were drilled and perforated for completion between December 31, 2010 and June 30, 2012, and (c) the equivalent of approximately 44 Trust Development Wells to
be drilled within an AMI consisting of approximately 49,700 gross acres (42,000 net acres) in Alfalfa, Garfield, Grant, Major and Woods counties in Oklahoma.

SandRidge is obligated to drill, or cause to be drilled, the Trust Development Wells on or before December 31, 2015. SandRidge is not permitted to drill and complete any well within the AMI for its
own account until it has satisfied the drilling obligation to the Trust. SandRidge has granted to the Trust a lien covering its interest in the AMI (except its interest in the Initial Wells) in order to secure the estimated amount of the drilling
costs for the Trusts interests in the undeveloped Underlying Properties, the balance of which is reduced as SandRidge fulfills its drilling obligation under the development agreement. At June 30, 2012, the amount potentially recoverable
under the lien was approximately $59.9 million.

The Trust is not responsible for any costs related to the drilling of the
Trust Development Wells or any other operating or capital costs related to the Underlying Properties. The following table presents the number of Initial Wells, Trust Development Wells drilled and Trust Development Wells to be drilled as of
June 30, 2012 and December 31, 2011.



|                  |  |               |    |  |                                  |  |    |                                    |  |  |       |  |  |  |     | 
|----------------- |  | ------------- | -- |  | -------------------------------- |  | -- | ---------------------------------- |  |  | ----- |  |  |  | --- | 
|                  |  | Initial Wells |    |  | TrustDevelopmentWells Drilled(1) |  |    | TrustDevelopmentWells To BeDrilled |  |  | Total | 
|December 31, 2011 |  |               | 37 |  |                                  |  | 53 |                                    |  |  | 70    |  |  |  | 160 | 
|June 30, 2012     |  |               | 37 |  |                                  |  | 79 |                                    |  |  | 44    |  |  |  | 160 | 



|(1) | SandRidge is credited for having drilled one full Trust Development Well if a well is drilled and perforated for completion with a minimum perforated length of 2,500
feet and SandRidges net revenue interest in the well is equal to 57.0%. For wells with a perforated length of less than 2,500 feet and for wells in which SandRidge has a net revenue interest greater or less than 57.0%, SandRidge will receive
proportionate credit for such well.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Distributions.The Trust makes quarterly cash distributions of
substantially all of its cash receipts, after deducting amounts for the Trusts administrative expenses and cash reserves withheld by the Trustee, on or about 60 days following the completion of each quarter. The Trusts subordinated units
are entitled to receive pro rata distributions from the Trust each quarter if and to the extent there is sufficient cash to provide a cash distribution on the common units that is at least equal to the Subordination Threshold. If there is not
sufficient cash to fund such a distribution on all of the common units (including the common units SandRidge owns), the distribution to be made with respect to the subordinated units is reduced or eliminated for such quarter in order to make a
distribution, to the extent possible, to all of the common units (including the common units held by SandRidge) up to the Subordination Threshold. However, there is no minimum distribution. If the cash available for distribution on all of the Trust
units in any quarter exceeds the Incentive Threshold for the corresponding quarter, SandRidge, as holder of the Trusts subordinated units, is entitled to 50% of the amount by which the cash available for distribution exceeds the Incentive
Threshold.



12



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##### Table of Contents

The following table sets forth the Subordination Threshold and Incentive Threshold for each
remaining calendar quarter through the fourth quarter of 2016, as set out in the trust agreement.



|               |  |                           |      |  |                       |   |      | 
|-------------- |  | ------------------------- | ---- |  | --------------------- | - | ---- | 
|Period(1)      |  | SubordinationThreshold(2) |      |  | IncentiveThreshold(2) |  
|2012           |  |                           |      |  |                       |   |      | 
|Second quarter |  | $                         | 0.56 |  |                       | $ | 0.84 | 
|Third quarter  |  |                           | 0.59 |  |                       |   | 0.88 | 
|Fourth quarter |  |                           | 0.58 |  |                       |   | 0.87 | 
|               |  |                          
|2013           |  |                           |      |  |                       |   |      | 
|First quarter  |  |                           | 0.59 |  |                       |   | 0.89 | 
|Second quarter |  |                           | 0.61 |  |                       |   | 0.92 | 
|Third quarter  |  |                           | 0.61 |  |                       |   | 0.92 | 
|Fourth quarter |  |                           | 0.61 |  |                       |   | 0.91 | 
|               |  |                          
|2014           |  |                           |      |  |                       |   |      | 
|First quarter  |  |                           | 0.62 |  |                       |   | 0.93 | 
|Second quarter |  |                           | 0.66 |  |                       |   | 0.99 | 
|Third quarter  |  |                           | 0.70 |  |                       |   | 1.04 | 
|Fourth quarter |  |                           | 0.72 |  |                       |   | 1.07 | 
|               |  |                          
|2015           |  |                           |      |  |                       |   |      | 
|First quarter  |  |                           | 0.67 |  |                       |   | 1.01 | 
|Second quarter |  |                           | 0.62 |  |                       |   | 0.93 | 
|Third quarter  |  |                           | 0.58 |  |                       |   | 0.86 | 
|Fourth quarter |  |                           | 0.54 |  |                       |   | 0.81 | 
|               |  |                          
|2016           |  |                           |      |  |                       |   |      | 
|First quarter  |  |                           | 0.52 |  |                       |   | 0.78 | 
|Second quarter |  |                           | 0.50 |  |                       |   | 0.75 | 
|Third quarter  |  |                           | 0.48 |  |                       |   | 0.72 | 
|Fourth quarter |  |                           | 0.46 |  |                       |   | 0.69 | 



|(1) | Due to the timing of the payment of production proceeds to the Trust, each distribution covers production from a three-month period consisting of the first two months
of the most recently ended quarter and the final month of the quarter preceding it.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Each of the Subordination Threshold (80% of quarterly target distribution) and Incentive Threshold (120% of quarterly target distribution) terminates after the fourth
full calendar quarter following SandRidges completion of its drilling obligation.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Pursuant to Internal
Revenue Code Section 1446, withholding tax on income effectively connected to a United States trade or business allocated to foreign partners should be made at the highest marginal rate. Under Section 1441, withholding tax on fixed,
determinable, annual, periodic income from United States sources allocated to foreign partners should be made at 30% of gross income unless the rate is reduced by treaty. This is intended to be a qualified notice to nominees and brokers as provided
for under Treasury Regulation Section 1.1446-4(b) by the Trust, and while specific relief is not specified for Section 1441 income, this disclosure is intended to suffice. Nominees and brokers should withhold 35% of the distribution made
to foreign partners.

Results of Trust Operations

The primary factors affecting the Trusts revenues and costs are the quantity of oil and natural gas production attributable to the Royalty Interests, the prices received for such production and
amounts paid or received as net settlements under the derivatives agreement. Royalty income, post-production expenses, production taxes and derivative settlements are recorded on a cash basis when net revenue distributions are received by the Trust
from SandRidge. Although the Trust was formed on December 30, 2010, the conveyance of the Royalty Interests did not occur until April 2011, and no proceeds from the sale of oil and natural gas production were received by the Trust until August
2011. As a result, the Trust did not recognize any income or make any distributions until August 2011. Information regarding the Trusts production, pricing and costs for the three and six-month periods ended June 30, 2012, consisting of
the February 2012 and May 2012 net revenue distributions and net derivative settlements from SandRidge, is presented below.



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##### Table of Contents

|                                                                                         |  |                    |       |  |                   |   |       | 
|---------------------------------------------------------------------------------------- |  | ------------------ | ----- |  | ----------------- | - | ----- | 
|                                                                                         |  | Three Months Ended |       |  | Six Months Ended  |  
|                                                                                         |  | June 30, 2012 (1)  |       |  | June 30, 2012 (2) |  
|Production Data                                                                          |  |                    |       |  |                   |   |       | 
|Oil (MBbls)(3)                                                                           |  |                    | 170   |  |                   |   | 354   | 
|Natural gas (MMcf)                                                                       |  |                    | 1,462 |  |                   |   | 3,030 | 
|Combined equivalent volumes (MBoe)                                                       |  |                    | 413   |  |                   |   | 859   | 
|Average daily combined equivalent volumes (MBoe/d)                                       |  |                    | 4.5   |  |                   |   | 4.7   | 
|                                                                                         |  |                   
|Average Prices                                                                           |  |                    |       |  |                   |   |       | 
|Oil (per Bbl)(3)                                                                         |  | $                  | 95.86 |  |                   | $ | 90.07 | 
|Natural gas (per Mcf)                                                                    |  | $                  | 3.32  |  |                   | $ | 3.70  | 
|Combined equivalent (per Boe)                                                            |  | $                  | 51.10 |  |                   | $ | 50.20 | 
|                                                                                         |  |                   
|Average Prices  including impact of derivative settlements and post-production expenses |  |                    |       |  |                   |   |       | 
|Oil (per Bbl)(3)                                                                         |  | $                  | 98.32 |  |                   | $ | 95.92 | 
|Natural gas (per Mcf)                                                                    |  | $                  | 4.04  |  |                   | $ | 4.06  | 
|Combined equivalent (per Boe)                                                            |  | $                  | 54.67 |  |                   | $ | 53.86 | 
|                                                                                         |  |                   
|Expenses (per Boe)                                                                       |  |                    |       |  |                   |   |       | 
|Post-production                                                                          |  | $                  | 1.90  |  |                   | $ | 1.96  | 
|Production taxes                                                                         |  | $                  | 0.53  |  |                   | $ | 0.52  | 
|                                                                                         |  |                    |       |  |                   |   |       | 
|Total expenses                                                                           |  | $                  | 2.43  |  |                   | $ | 2.48  | 
|                                                                                         |  |                    |       |  |                   |   |       | 



|(1) | Oil and natural gas volumes and related revenues and expenses for the three-month period ended June 30, 2012 (included in SandRidges May 2012 net revenue
distribution to the Trust) represent oil and natural gas production from December 1, 2011 to February 29, 2012.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Oil and natural gas volumes and related revenues and expenses for the six-month period ended June 30, 2012 (included in SandRidges February 2012 and May 2012
net revenue distributions to the Trust) represent oil and natural gas production from September 1, 2011 to February 29, 2012.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Includes natural gas liquids.
|--- | -----------------------------

Trust
Operations for the Three Months Ended June 30, 2012

Royalty Income. Royalty income received during the
three-month period ended June 30, 2012 totaled $21.1 million. This was based upon production attributable to the Royalty Interests of 170 MBbls of oil and 1,462 MMcf of natural gas for the period from December 1, 2011 to February 29,
2012. Average prices received for oil and natural gas production, excluding the impact of derivative settlements and post-production expenses, during the three-month period ended June 30, 2012 were $95.86 per Bbl of oil and $3.32 per Mcf of
natural gas.

Derivative Settlements. The Trusts derivatives agreement with SandRidge reduces the Trusts
exposure to commodity price volatility attributable to a portion of production from the Royalty Interests through December 31, 2015 through the use of oil fixed price swaps and natural gas collars. Net cash settlements under the derivatives
agreement for the three-month period ended June 30, 2012 for production from December 1, 2011 to February 29, 2012 were approximately $2.3 million, which effectively increased the average price received for oil by $2.46 per Bbl to
$98.32 per Bbl and increased the average price received for natural gas by $1.26 per Mcf to $4.58 per Mcf ($4.04 per Mcf including the impact of post-production expenses).

Post-Production Expenses. The Trust bears post-production expenses attributable to production from the Royalty Interests. Post-production expenses generally consist of costs incurred to gather,
store, compress, transport, process, treat, dehydrate and market the oil and natural gas produced. Post-production expenses for the three-month period ended June 30, 2012 totaled approximately $0.8 million.

Production Taxes. Production taxes are calculated as a percentage of oil and natural gas revenues, excluding the effects of
derivative settlements and net of any applicable tax credits. Production taxes for the three-month period ended June 30, 2012 totaled approximately $0.2 million, or $0.53 per Boe, and were approximately 1.0% of royalty income.

Incentive Distribution to SandRidge. On May 30, 2012, the Trust paid a cash distribution covering production for the period
from December 1, 2011 to February 29, 2012. Cash available for distribution prior to the incentive calculation exceeded the Incentive Threshold by approximately $114,000. As holder of the Trusts subordinated units, SandRidge received
50% of the amount by which the cash available for distribution exceeded the Incentive Threshold, or approximately $57,000.

Distributable Income.Distributable income for the three-month period ended June 30, 2012 was $22.0 million, which included a net reduction to the cash reserve for payment of future Trust
expenses of approximately $6,000 (approximately $291,000 used to pay Trust expenses during the period partially offset by approximately $285,000 withheld from the May 2012 cash distribution to unitholders).



14



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##### Table of Contents

Trust Operations for the Six Months Ended June 30, 2012

Royalty Income. Royalty income received during the six-month period ended June 30, 2012 totaled $43.1 million. This was based
upon production attributable to the Royalty Interests of 354 MBbls of oil and 3,030 MMcf of natural gas for the period from September 1, 2011 to February 29, 2012. Average prices received for oil and natural gas production, excluding the
impact of derivative settlements and post-production expenses, during the six-month period ended June 30, 2012 were $90.07 per Bbl of oil and $3.70 per Mcf of natural gas.

Derivative Settlements. Net cash settlements under the derivatives agreement for the six-month period ended June 30, 2012 for
production from September 1, 2011 to February 29, 2012 were approximately $4.8 million, which effectively increased the average price received for oil by $5.85 per Bbl to $95.92 per Bbl and increased the average price received for natural
gas by $0.92 per Mcf to $4.62 per Mcf ($4.06 per Mcf including the impact of post-production expenses).

Post-Production
Expenses. Post-production expenses for the six-month period ended June 30, 2012 totaled approximately $1.7 million.

Production Taxes. Production taxes for the six-month period ended June 30, 2012 totaled approximately $0.4 million, or $0.52
per Boe, and were approximately 1.0% of royalty income.

Incentive Distribution to SandRidge. Cash available for
distribution during the six-month period ended June 30, 2012 prior to incentive calculations exceeded Incentive Thresholds for the applicable distribution periods by approximately $1.8 million ($1.7 million for the February 2012 distribution
and $0.1 million for the May 2012 distribution). As the holder of the Trusts subordinated units, SandRidge received 50% of the amount by which the cash available for distribution exceeded the Incentive Threshold for each distribution, or
approximately $0.9 million total.

Distributable Income.Distributable income for the six-month period ended
June 30, 2012 was $44.2 million, which included a net reduction to the cash reserve for payment of future Trust expenses of approximately $0.2 million (approximately $0.9 million used to pay Trust expenses during the period partially offset by
approximately $0.7 million withheld from the February 2012 and May 2012 cash distributions to unitholders).

Liquidity and Capital
Resources

The Trusts principal sources of liquidity and capital are cash flow generated from the Royalty Interests,
derivative contracts under the derivatives agreement and borrowings to fund administrative expenses, including any amounts borrowed under SandRidges loan commitment described in Note 4 to the unaudited financial statements contained in Part I,
Item I of this Quarterly Report. The Trusts primary uses of cash are distributions to Trust unitholders, including, if applicable, incentive distributions to SandRidge, payment of amounts owed under the derivatives agreement, payment of Trust
administrative expenses, including any reserves established by the Trustee for future liabilities, and payment of expense reimbursements to SandRidge for out-of-pocket expenses incurred on behalf of the Trust. Under the conveyances granting the
Royalty Interests, the Trust does not have any capital requirements related to drilling wells or any other operating and capital costs related to the wells.

Administrative expenses include payments to the Trustee and the Delaware Trustee as well as a quarterly fee to SandRidge pursuant to an administrative services agreement. Each quarter, the Trustee
determines the amount of funds available for distribution. Available funds are the excess cash, if any, received by the Trust from the sale of oil and natural gas production attributable to the Royalty Interests for the quarter, over the
Trusts expenses for the quarter, subject in all cases to the subordination and incentive provisions previously described. If at any time the Trusts cash on hand (including available cash reserves) is not sufficient to pay the
Trusts ordinary course administrative expenses as they become due, the Trust may borrow funds from the Trustee or other lenders, including SandRidge, to pay such expenses. If such funds are borrowed, no further distributions will be made to
unitholders (except in respect of any previously determined quarterly distribution amount) until the borrowed funds have been repaid. There was no such loan outstanding at June 30, 2012 or December 31, 2011.

Under the derivatives agreement, SandRidge pays the Trust amounts it receives from its counterparties and the Trust pays SandRidge any
amounts that SandRidge is required to pay such counterparties. Significant payments by the Trust to SandRidge to cover such settlements could reduce or eliminate distributions paid to unitholders.



15



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##### Table of Contents

2012 Trust Distributions to Unitholders.During the six months ended June 30,
2012, the Trusts distributions to unitholders were as follows:



|                      |  |                           |                                     |  |               |  |                  |           |  |  |                         |  |  |   |      | 
|--------------------- |  | ------------------------- | ----------------------------------- |  | ------------- |  | ---------------- | --------- |  |  | ----------------------- |  |  | - | ---- | 
|                      |  | Covered 
ProductionPeriod |                                     |  | Date Declared |  |                  | Date Paid |  |  | TotalDistribution 
Paid | 
|                      |  |                           |                                     |  |               |  |                  |           |  |  | (in millions)           | 
|Calendar Quarter 2012 |  |                           |                                     |  |               |  |                  |           |  |  |                         |  |  |   |      | 
|First Quarter         |  |                           | September 1 November 30, 2011      |  |               |  | February 2, 2012 |           |  |  | February 29, 2012       |  |  | $ | 22.1 | 
|Second Quarter        |  |                           | December 1, 2011 February 29, 2012 |  |               |  | April 30, 2012   |           |  |  | May 30, 2012            |  |  | $ | 22.0 | 

Future Trust Distributions to Unitholders.On July 26, 2012, the Trust declared a cash
distribution of $0.727696 per unit covering production for the period from March 1, 2012 to May 31, 2012 for record holders as of August 14, 2012. The distribution will be paid on or about August 29, 2012 and was calculated as
follows (in thousands, except for unit and per unit amounts):



|                                                                        |  |   |          | 
|----------------------------------------------------------------------- |  | - | -------- | 
|Revenues                                                                |  |   |          | 
|Royalty income                                                          |  | $ | 18,317   | 
|Derivative settlements, net                                             |  |   | 3,270    | 
|                                                                        |  |   |          | 
|Total revenues                                                          |  |   | 21,587   | 
|                                                                        |  |   |          | 
|Expenses                                                                |  |   |          | 
|Post-production expenses                                                |  |   | 743      | 
|Production taxes                                                        |  |   | 184      | 
|Cash reserves withheld by Trustee(1)                                    |  |   | 285      | 
|                                                                        |  |   |          | 
|Total expenses                                                          |  |   | 1,212    | 
|                                                                        |  |   |          | 
|Distributable income available to unitholders                           |  | $ | 20,375   | 
|                                                                        |  |   |          | 
|Distributable income per unit (28,000,000 units issued and outstanding) |  | $ | 0.727696 | 
|                                                                        |  |   |          | 



|(1) | Includes amounts withheld for payment of future Trust administrative expenses.
|--- | ------------------------------------------------------------------------------

ITEM 3.Quantitative and Qualitative Disclosures about Market Risk

This discussion provides information about commodity derivative contracts, the benefits and obligations of which SandRidge has passed to the Trust pursuant to a derivatives agreement effective
April 1, 2011. Under the derivatives agreement, SandRidge pays the Trust amounts it receives from counterparties under certain of its derivative contracts with third parties, and the Trust pays SandRidge any amounts that SandRidge is required
to pay the counterparties under such derivative contracts. The Trust did not bear any costs related to establishing the contracts underlying the derivatives agreement. The commodity derivative contracts underlying the derivatives agreement are
settled in cash and do not require the actual delivery of a commodity at settlement. Fixed price swap and collar contracts are settled based upon New York Mercantile Exchange prices. Collar contracts result in a cash settlement only when the
settlement price exceeds the fixed ceiling price or falls below the fixed floor price. The contracts underlying the derivatives agreement cover a portion of the anticipated future sales volumes of oil and natural gas production from the Initial
Wells as well as a portion of the anticipated future production from the Trust Development Wells through December 31, 2015. The Trust does not have the ability to enter into its own derivative contracts. See Note 5 to the unaudited financial
statements contained in Part I, Item I of this Quarterly Report for notional and price information of the Trusts open oil and natural gas derivative contracts. The Trust received net settlement proceeds of approximately $2.3 million and $4.8
million related to the derivatives agreement during the three and six-month periods ended June 30, 2012, respectively.

Commodity Price Risk. Because the Trusts primary asset and source of income is the Royalty Interests, which generally
entitles the Trust to receive a portion of the net proceeds from sales of oil and natural gas production from the Underlying Properties, the Trusts most significant market risk relates to the prices received for oil and natural gas production.
The derivative contracts described above are intended to mitigate a portion of the variability of oil and natural gas prices received for the Trusts share of production from the Underlying Properties.

Credit Risk. A portion of the Trusts liquidity is concentrated in the derivative contracts described above. The use of
derivative contracts, including the arrangement between the Trust and SandRidge, involves the risk that SandRidge or its counterparties will be unable to meet their obligations under the contracts. The Trusts counterparty under the derivatives
agreement is SandRidge, whose counterparties are institutions with an investment grade credit rating. SandRidge is not required to pay the Trust to the extent of payment defaults by SandRidges counterparties.



16



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##### Table of Contents

ITEM 4.Controls and Procedures

The Trustee conducted an evaluation of the Trusts disclosure controls and procedures as defined in Rules 13a-15 and 15d-15 under the
Securities Act designed to ensure that information required to be disclosed by the Trust in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the
SECs rules and forms. Based on this evaluation, the Trustee has concluded that the disclosure controls and procedures of the Trust are effective as of the end of the period covered by this report. In its evaluation of disclosure controls and
procedures, the Trustee has relied, to the extent considered reasonable, on information provided by SandRidge.

Due to the
nature of the Trust as a passive entity and in light of the contractual arrangements pursuant to which the Trust was created, including the provisions of (i) the trust agreement, (ii) the administrative services agreement, (iii) the
development agreement and (iv) the conveyances granting the Royalty Interests, the Trustees disclosure controls and procedures related to the Trust necessarily rely on (A) information provided by SandRidge, including information
relating to results of operations, the status of drilling of the Trust Development Wells, the costs and revenues attributable to the Trusts interests under the conveyance and other operating and historical data, plans for future operating and
capital expenditures, reserve information, information relating to projected production, and other information relating to the status and results of operations of the Underlying Properties and the Royalty Interests, and (B) conclusions and
reports regarding reserves by the Trusts independent reserve engineers.

There were no changes in the Trusts
internal control over financial reporting during the quarter ended June 30, 2012, that have materially affected, or are reasonably likely to materially affect, the Trustees internal control over financial reporting. The Trustee notes for
purposes of clarification that it has no authority over, has not evaluated and makes no statement concerning, the internal control over financial reporting of SandRidge.



17



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##### Table of Contents

PART II. Other Information

ITEM 1A.Risk Factors

Risk factors relating to the Trust are contained in Item 1A of the Trusts Annual Report on Form 10-K for the fiscal year ended
December 31, 2011. No material change to such risk factors has occurred during the six-month period ended June 
30, 2012.

ITEM 6.Exhibits

See the Exhibit Index accompanying this Quarterly Report.



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##### Table of Contents

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.



SANDRIDGE MISSISSIPPIAN TRUST IBy:

THE BANK OF NEW YORK MELLONTRUST COMPANY, N.A, TrusteeBy:

/s/ Michael J. UlrichMichael J. Ulrich Vice
President


Date: August 13, 2012

The registrant, SandRidge Mississippian Trust I, has no principal executive officer, principal financial officer, board of directors or persons performing similar functions. Accordingly, no additional
signatures are available, and none have been provided. In signing the report above, the Trustee does not imply that it has performed any such function or that any such function exists pursuant to the terms of the trust agreement under which it
serves.



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##### Table of Contents

EXHIBIT INDEX



|            |  |                                                                                                                                                                                                                        |  |                           |     |  |             |  |            |         |  |  |             |  |  |               |            |  |  |  |   | 
|----------- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------------------- | --- |  | ----------- |  | ---------- | ------- |  |  | ----------- |  |  | ------------- | ---------- |  |  |  | - | 
|            |  |                                                                                                                                                                                                                        |  | Incorporated by Reference |     |  |             | 
|Exhibit
No. |  | Exhibit Description                                                                                                                                                                                                    |  | Form                      |     |  | SECFile No. |  |            | Exhibit |  |  | Filing Date |  |  | FiledHerewith |           
|            |  |                                                                                                                                                                                                                        |  |                           |     | 
|3.1         |  | Certificate of Trust of SandRidge Mississippian Trust I                                                                                                                                                                |  |                           | S-1 |  |             |  | 333-171551 |         |  |  | 3.1         |  |  |               | 01/05/2011 |  |  |  |   | 
|            |  |                                                                                                                                                                                                                        |  |                           |     | 
|3.2         |  | Amended and Restated Trust Agreement of SandRidge Mississippian Trust I, dated April 12, 2011, by and among SandRidge Energy, Inc., The Bank of New York Mellon Trust Company,
N.A., and The Corporation Trust Company |  |                           | 8-K |  |             |  | 001-35122  |         |  |  | 3.1         |  |  |               | 04/18/2011 |  |  |  |   | 
|            |  |                                                                                                                                                                                                                        |  |                           |     | 
|3.3         |  | Amendment No. 1 to Amended and Restated Trust Agreement of SandRidge Mississippian Trust I, dated June 13, 2012, by the Bank of New York Mellon Trust Company, N.A.                                                    |  |                           |     |  |             |  |            |         |  |  |             |  |  |               |            |  |  |  | * | 
|            |  |                                                                                                                                                                                                                        |  |                           |     | 
|31.1        |  | Section 302 Certification                                                                                                                                                                                              |  |                           |     |  |             |  |            |         |  |  |             |  |  |               |            |  |  |  | * | 
|            |  |                                                                                                                                                                                                                        |  |                           |     | 
|32.1        |  | Section 906 Certification                                                                                                                                                                                              |  |                           |     |  |             |  |            |         |  |  |             |  |  |               |            |  |  |  | * | 



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