ClearBridge Energy MLP Opportunity Fund Inc. ("EMO") Announces Quarterly Distribution Rate for May 2013

ClearBridge Energy MLP Opportunity Fund Inc. (NYSE: EMO) today announced a quarterly distribution of $0.3400 per common share payable in May 2013. The amount is unchanged from prior quarter.

The distribution schedule appears below:

It is currently anticipated that substantially all of this distribution will be treated for tax purposes as a return of capital. The final determination of such amount will be made in early 2014 when the Fund can determine its earnings and profits. The final tax status of the distribution may differ substantially from this preliminary information.

This press release is not for tax reporting purposes but is being provided to announce the amount of the Fund’s distributions that have been declared by the Board of Directors. In early 2014, after definitive information is available, the Fund will send stockholders a Form 1099-DIV, if applicable, specifying how the distributions paid by the Fund during the prior calendar year should be characterized for purposes of reporting the distributions on a stockholder’s tax return (e.g., ordinary income, long-term capital gain or return of capital).

The types of MLPs in which the Fund invests historically have made cash distributions to limited partners or members that exceed the amount of taxable income allocable to limited partners or members, due to a variety of factors, including significant non-cash deductions, such as depreciation and depletion. If the cash distributions exceed the taxable income reported in a particular tax year, the excess cash distributions would not be taxed as income to the Fund in that tax year but rather would be treated as a return of capital for federal income tax purposes to the extent of the Fund’s basis in its MLP units. Similarly, the Fund expects to distribute cash in excess of its earnings and profits to holders of Common Stock (the “Common Stockholders”) which may be treated as a return of capital to the extent of the Common Stockholders’ bases in the Fund’s Common Stock. As a result, the Fund’s Common Stockholders should expect to receive distributions that are generally tax-deferred and represent a return of capital although no assurance can be given in this regard. This will result in a reduction in basis in their shares, which may increase the capital gain, or reduce capital loss, realized upon sale of such shares.

ClearBridge Energy MLP Opportunity Fund Inc. is a non-diversified, closed-end management investment company which is advised by Legg Mason Partners Fund Advisor, LLC (“LMPFA”) and subadvised by ClearBridge Investments, LLC (“ClearBridge”). LMPFA and ClearBridge are wholly owned subsidiaries of Legg Mason, Inc. (“Legg Mason”).

For more information, please contact the Fund at 1-888-777-0102 or visit the Fund's web site at www.lmcef.com.

Data and commentary provided in this press release are for informational purposes only. Legg Mason and its affiliates do not engage in selling shares of the Fund.