Oppenheimer Rochester® Fund Municipals Q2 2016 Fact Sheet (A/C/Y) RMUNX, RMUCX, RMUYX | As of 6/30/16 Calendar Year Total Returns % (Without Sales Charge) 2007 Morningstar Rating™ 2008 2009 2010 2011 2012 2013 2014 2015 YTD ★★★★★ A Shares -1.59 -30.84 45.07 3.63 11.50 12.94 -10.84 14.43 1.94 8.15 Y Shares -1.44 -30.74 45.18 3.84 11.64 13.10 -10.72 14.60 2.09 8.22 Y shares are not available for all investors. See the prospectus for details. Class Y Shares rated 5 stars by Morningstar among 89 Muni New York Long funds for the 3-,5- and 10- year periods ended 6/30/16¹ based on risk-adjusted performance. Average Annual Total Returns and Expense Ratios % Strategy Focus 1-Year A Shares w/o Sales Charge A Shares w/Sales Charge Y Shares Bar Municipal 10-Year 15-Year 20-Year Life The Strategy typically invests in New York municipal bonds. 3-Year 5-Year 11.56 4.96 6.33 4.40 5.14 5.44 6.40 6.26 3.27 5.30 3.90 4.80 5.19 6.23 Portfolio Characteristics 11.73 5.11 6.47 4.55 5.29 — 5.68 Portfolio Inception 7.65 5.58 5.33 5.13 5.10 5.46 — Annual Expense Ratio: Gross: A shares: 0.86% / Y shares: 0.71%. Net: A shares: 0.79% / Y shares: 0.64%. Class A inception date is 5/15/1986. Class Y inception date is 4/28/2000. The performance data quoted represents past performance, which does not guarantee future results. The investment return and principal value of an investment in the Fund will fluctuate so that an investor's shares, when redeemed, may be worth more or less than the original cost. Current performance and expense ratios may be lower or higher than the data quoted. For performance data current to the most recent month-end, visit oppenheimerfunds.com. Class A returns include changes in share price and reinvested distributions, and a 4.75% maximum applicable sales charge except where "without sales charge" is indicated. Class Y shares are not subject to sales charge. Returns do not consider capital gains or income taxes on an individual’s investment. The net expense ratio represents the Fund's gross expense ratio less certain interest and related expenses from the Fund's investments in inverse floaters, as reported in the latest prospectus. Under accounting rules, the Fund recognized additional income in an amount that offsets these expenses; the Fund's total returns and net asset values are not affected by those offsets. The net expense ratio is not the result of a fee waiver or expense reimbursement. Please refer to the disclosure statements for definition of the indices. Lipper Peer Ranking*-New York Municipal Debt Funds² A Shares 1-Year 3-Year 5-Year 10-Year 15-Year 20-Year Percentile 4th 73rd 9th 57th 7th 5th Ranking 3/97 69/94 7/85 37/64 4/57 2/44 Y Shares 1-Year 3-Year 5-Year 10-Year 15-Year 20-Year Percentile 3rd 65th 6th 40th 4th — Ranking 2/97 61/94 5/85 26/64 2/57 — Growth of $10K (A Shares) $80,000 60,000 40,000 Portfolio Assets (All Classes) $5.8 Billion Standardized Yield (%) 4.60 Taxable Equivalent Yield (%) 8.97 Last Distribution (Jun) $0.0740 Dividend Frequency Monthly Duration (Years) 6.66 Average Effective Maturity Net Cash & Equivalents 10.26 -5.15% Standardized yield (Class A shares) is based on net investment income for the 30-day period ended 6/30/16 and the offering price on that date. Taxable equivalent yield is based on the standardized yield and the combined effective federal and state tax rate of 48.7% for 2016 and assumes that alternative minimum tax (AMT) does not apply. Calculations factor in the 3.8% tax on unearned income under the Patient Protection and Affordable Care Act, as applicable. 20,000 May 86 *Based on Total Return. Source: Lipper, 6/30/16. $64,846 5/15/1986 Nov 93 May 01 Nov 08 Performance quoted above includes changes in net asset value and reinvested distributions, but not the maximum applicable sales charge. If sales charge was considered, performance quoted above would be lower. As of 6/30/16. Holdings are subject to change, and are dollar weighted based on total net assets. Negative weightings may result from the use of leverage. Leverage involves the use of various financial instruments or borrowed capital in an attempt to increase investment return. Leverage risks include potential for higher volatility, greater decline of the Fund’s net asset value and fluctuations of dividends and distributions paid by the Fund. Top Industry Sectors Tobacco Master Settlement Agreement 19.4% Marine/Aviation Facilities 10.7 Electric Utilities 10.0 Sales Tax Revenue 7.8 Special Tax 7.7 Special Risks: Fixed income investing entails credit and interest rate risks. When interest rates rise, bond prices generally fall, and the Fund’s share prices can fall. Below-investment-grade (“high yield” or "junk") bonds are more at risk of default and are subject to liquidity risk. Large sector holdings may expose investors to greater volatility and special risks associated with that sector. May invest substantially in municipal securities within a single state or related to similar type projects, which can increase volatility and exposure to regional issues. May invest substantially in Puerto Rico and other U.S. territories, commonwealths and possessions, and could be exposed to their local political and economic conditions. Inverse floaters can be more volatile than conventional fixed-rate bonds and entail the use of leverage. The Fund may invest in the segment of the municipal bond market that is unrated by a Nationally Recognized Statistical Rating Organization (“NRSRO”). Under certain market conditions, some unrated securities may trade less actively than rated securities. 1. For each fund with at least a three-year history, Morningstar calculates ratings based on a proprietary risk-adjusted returns score that accounts for variation in a fund’s monthly performance (including the effects of sales charges, loads and redemption fees), placing more emphasis on downward variations and rewarding consistency. The top 10% of funds in each category receive 5 stars, the next 22.5% 4 stars, the next 35% 3 stars, the next 22.5% 2 stars and the bottom 10% 1 star with some adjustments for multiple share class portfolios. The overall Morningstar Rating is derived from a weighted average of the 3-, 5- and 10-year ratings (where applicable). For the 3-,5- and 10- year periods, respectively, the Fund was rated 5, 5 and 5 stars among 89, 79 and 65 funds in the Muni New York Long category for the time period ended 6/30/16. Rating is for Y shares and rating may include more than one share class of funds in the category, including other share classes of this Fund. Different share classes may have different expenses and performance characteristics. Past performance does not guarantee future results. 2. Rankings are for A and Y shares and ranking may include more than one share class of funds in the category, including other share classes of the Fund. Ranking is based on total return as of 6/30/16, without considering sales charges. Different share classes may have different expenses and performance characteristics. A portion of the Fund's distributions may be subject to tax and may increase taxes for investors subject to Alternative Minimum Tax (AMT). Capital gains distributions are taxable as capital gains. Tax treatments of the Fund’s distributions and capital gains may vary by state; investors should consult a tax advisor to determine if the Fund is appropriate for them. Not FDIC Insured May Lose Value Not Bank Guaranteed Oppenheimer Rochester Fund Municipals (A/C/Y) RMUNX, RMUCX, RMUYX Investment Approach The portfolio managers invest in municipal bonds that offer attractive, tax-free yield, within prospectus parameters. Their investment process employs a bottom-up, research-oriented approach to generate long-term, income-driven total return. Duration (Years): Duration measures interest rate sensitivity; the longer the duration, the greater the volatility as rates change. The Barclays Municipal Bond Index is an unmanaged index of a broad range of investment-grade municipal bonds that measures the performance of the general municipal bond market. Index performance is shown for illustrative purposes only and does not predict or depict performance of the Fund. Past performance does not guarantee future results. Visit Us oppenheimerfunds.com Call Us 800 225 5677 Follow Us Shares of Oppenheimer funds are not deposits or obligations of any bank, are not guaranteed by any bank, are not insured by the FDIC or any other agency, and involve investment risks, including the possible loss of the principal amount invested. Before investing in any of the Oppenheimer funds, investors should carefully consider a fund’s investment objectives, risks, charges and expenses. Fund prospectuses and summary prospectuses contain this and other information about the funds, and may be obtained by asking your financial advisor or visiting oppenheimerfunds.com. Read prospectuses and summary prospectuses carefully before investing. Oppenheimer funds are distributed by OppenheimerFunds Distributor, Inc. 225 Liberty Street, New York, NY 10281-1008 ©2016 OppenheimerFunds Distributor, Inc. All rights reserved. IF0365.002.0616 June 30, 2016