497K 1 form.htm

Federated U.S. Treasury Cash Reserves

A Portfolio of Money Market Obligations Trust

Summary PROSPECTUS

June 30, 2010

INSTITUTIONAL SHARES (TICKER UTIXX)

Before you invest, you may want to review the Fund's Prospectus, which contains more information about the Fund and its risks. You can find the Fund's Prospectus and other information about the Fund, including the Statement of Additional Information and most recent reports to shareholders, online at FederatedInvestors.com/prospectus. You can also get this information at no cost by calling 1-800-341-7400 or by sending an email request to services@federatedinvestors.com or from a financial intermediary through which Shares of the Fund may be bought or sold. The Fund's Prospectus and Statement of Additional Information, both dated June 30, 2010, are incorporated by reference into this Summary Prospectus.

A money market mutual fund seeking current income consistent with stability of principal and liquidity by investing only in a portfolio of short-term U.S. Treasury securities.

As with all mutual funds, the Securities and Exchange Commission (SEC) has not approved or disapproved these securities or passed upon the adequacy of this Prospectus. Any representation to the contrary is a criminal offense.

Fund Summary Information

RISK/RETURN SUMMARY: INVESTMENT OBJECTIVE

The Fund's investment objective is current income consistent with stability of principal and liquidity.

RISK/RETURN SUMMARY: FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold Institutional Shares of the Fund.

Shareholder Fees
Fees Paid Directly From Your Investment
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)	None
Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)	None
Redemption Fee (as a percentage of amount redeemed, if applicable)	None
Exchange Fee	None
Annual Fund Operating Expenses
Expenses That You Pay Each Year as a Percentage of the Value of Your Investment
Management Fee	0.40%
Distribution (12b-1) Fee	None
Other Expenses	0.35%
Total Annual Fund Operating Expenses	0.75%
Fee Waivers and/or Expense Reimbursements¹	0.55%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	0.20%

The Adviser and its affiliates have voluntarily agreed to waive their fees and/or reimburse expenses so that the total annual fund operating expenses paid by the Fund's Institutional Shares (after the voluntary waivers and/or reimbursements) will not exceed 0.20% (the “Fee Limit”) through the later of (the “Termination Date”): (a) June 30, 2011, or (b) the date of the Fund's next effective Prospectus. While the Adviser and its affiliates currently do not anticipate terminating or increasing these arrangements prior to the Termination Date, these arrangements may only be terminated or the Fee Limit increased prior to the Termination Date with the agreement of the Fund's Board of Trustees.

Example

This Example is intended to help you compare the cost of investing in the Fund's Institutional Shares with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in the Fund's Institutional Shares for the time periods indicated and then redeem all of your Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's Institutional Shares operating expenses are as shown in the table and remain the same. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

1 Year	$77
3 Years	$240
5 Years	$417
10 Years	$930

RISK/RETURN SUMMARY: INVESTMENTS, RISKS and PERFORMANCE

What are the Fund's Main Investment Strategies?

The Fund invests only in a portfolio of short-term U.S. Treasury securities that pay interest exempt from state personal income tax.

In pursuing its investment objective and implementing its investment strategies, the Fund will comply with Rule 2a-7 under the Investment Company Act of 1940 (“Rule 2a-7”).

What are the Main Risks of Investing in the Fund?

All mutual funds take investment risks. Therefore, even though the Fund is a money market fund that seeks to maintain a stable NAV, it is possible to lose money by investing in the Fund. The primary factors that may reduce the Fund's returns include:

Interest Rate Risk. Prices of fixed-income securities generally fall when interest rates rise. Interest rate changes have a greater effect on the price of fixed-income securities with longer maturities.
Risks Associated with Investing Share Purchase Proceeds. On days where there are net purchases of Fund Shares, the Fund must invest the proceeds at prevailing market yields or hold cash. If the yield of the securities purchased is less than that of the securities already in the Fund's portfolio, or if the Fund holds cash, the Fund's yield will likely decrease. Conversely, net purchases on days on which short-term yields rise will cause the Fund's yield to increase. In the event of significant changes in short-term yields or significant net purchases, the Fund retains the discretion to close to new investments. However, the Fund is not required to close, and no assurance can be given that this will be done in any given circumstance.
Risks Associated with use of Amortized Cost. In the unlikely event that the Fund's Board of Trustees (“Board”) were to determine pursuant to Rule 2a-7 that the extent of the deviation between the Fund's amortized cost per share and its market-based NAV per share may result in material dilution or other unfair results to shareholders, the Board will cause the Fund to take such action as it deems appropriate to eliminate or reduce to the extent practicable such dilution or unfair results.

Changing Distribution Levels Risk. There is no guarantee that the Fund will provide a certain level of income or that any such income will exceed the rate of inflation.

The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.

Performance: Bar Chart and Table

Risk/Return Bar Chart

The bar chart and performance table below reflect historical performance data for the Fund's Institutional Shares. The performance information shown below will help you analyze the Fund's investment risks in light of its historical returns. The bar chart shows the variability of the Fund's Institutional Shares total returns on a calendar year-by-year basis. The Average Annual Total Return table shows returns averaged over the stated periods, and includes comparative performance information. The Fund's performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results. Updated performance information for the Fund is available under the “Products” section at FederatedInvestors.com or by calling 1-800-341-7400.

The Fund's Institutional Shares total return for the three-month period from January 1, 2010 to March 31, 2010 was 0.00%.

Within the period shown in the bar chart, the Fund's Institutional Shares highest quarterly return was 1.53% (quarter ended December 31, 2000). Its lowest quarterly return was 0.00% (quarter ended September 30, 2009).

Average Annual Total Return Table

The following table represents the Fund's Institutional Shares Average Annual Total Returns for the calendar period ended December 31, 2009.

Calendar Period	Fund
1 Year	0.02%

Calendar Period	Fund
5 Years	2.67%
10 Years	2.65%

The Fund's Institutional Shares 7-Day Net Yield as of December 31, 2009 was 0.00%. You may call the Fund at 1-800-341-7400 for the current 7-Day Net Yield.

Fund Management

The Fund's Investment Adviser is Federated Investment Management Company.

Purchase and Sale of Fund Shares

The minimum investment amount for the Fund's Institutional Shares is generally $25,000 and there is no minimum subsequent investment amount There is no minimum initial or subsequent investment amount required for employer-sponsored retirement plans.

You may purchase, redeem or exchange Shares of the Fund on any day the New York Stock Exchange (NYSE) is open. Shares may be purchased through a financial intermediary or directly from the Fund, by wire or by check. Redeem or exchange through a financial intermediary or directly from the Fund by telephone at 1-800-341-7400 or by mail.

Tax Information

The Fund's distributions are taxable as ordinary income or capital gains except when your investment is through an individual retirement account (IRA).

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and/or its related companies may pay the intermediary for the sale of Fund Shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's Web site for more information.

Federated U.S. Treasury Cash Reserves
Federated Investors Funds
4000 Ericsson Drive
Warrendale, PA 15086-7561

Federated Securities Corp., Distributor

Investment Company Act File No. 811-5950

Cusip 60934N682

Q450302 (6/10)