Oppenheimer Capital Appreciation Fund

Oppenheimer Capital Income Fund

Oppenheimer Commodity Strategy Total Return Fund

Oppenheimer Corporate Bond Fund

Oppenheimer Developing Markets Fund

Oppenheimer Discovery Fund

Oppenheimer Discovery Mid Cap Growth Fund

Oppenheimer Dividend Opportunity Fund

Oppenheimer Emerging Markets Innovators Fund

Oppenheimer Emerging Markets Local Debt Fund

Oppenheimer Equity Fund

Oppenheimer Equity Income Fund

Oppenheimer Global Fund

Oppenheimer Global High Yield Fund

Oppenheimer Global Multi-Alternatives Fund

Oppenheimer Global Multi-Asset Growth Fund

Oppenheimer Global Multi-Asset Income Fund

Oppenheimer Global Multi Strategies Fund

Oppenheimer Global Opportunities Fund

Oppenheimer Global Real Estate Fund

Oppenheimer Global Strategic Income Fund

Oppenheimer Global Value Fund

Oppenheimer Gold & Special Minerals Fund

Oppenheimer Core Bond Fund

Oppenheimer International Bond Fund

Oppenheimer International Diversified Fund

Oppenheimer International Growth Fund

Oppenheimer International Small Company Fund

Oppenheimer International Value Fund

Oppenheimer Limited-Term Bond Fund

Oppenheimer Limited-Term Government Fund

Oppenheimer Main Street Fund®

Oppenheimer Main Street Select Fund®

Oppenheimer Main Street Small Cap Fund®

Oppenheimer Main Street Mid Cap Fund®

Oppenheimer Cash Reserves

Oppenheimer Institutional Money Market Fund

Oppenheimer Money Market Fund

Oppenheimer Rochester® High Yield Municipal Fund

Oppenheimer Rochester® New Jersey Municipal Fund

Oppenheimer Rochester® Pennsylvania Municipal Fund

Oppenheimer Rochester® Limited Term Municipal Fund

Oppenheimer Portfolio Series: Active Allocation Fund

Oppenheimer Portfolio Series: Conservative Investor Fund

Oppenheimer Portfolio Series: Equity Investor Fund

Oppenheimer Portfolio Series: Moderate Investor Fund

Oppenheimer Fundamental Alternatives Fund

Oppenheimer Global Allocation Fund

Oppenheimer Mid Cap Value Fund

Oppenheimer Real Estate Fund

Oppenheimer Rising Dividends Fund

Oppenheimer Rochester® AMT-Free Municipal Fund

Oppenheimer Rochester® AMT-Free New York Municipal Fund

Oppenheimer Rochester® Arizona Municipal Fund

Oppenheimer Rochester® California Municipal Fund

Oppenheimer Rochester® Fund Municipals

Oppenheimer Rochester® Intermediate Term Municipal Fund

Oppenheimer Rochester® Limited Term California Municipal Fund

Oppenheimer Rochester® Limited Term New York Municipal Fund

Oppenheimer Rochester® Maryland Municipal Fund

Oppenheimer Rochester® Massachusetts Municipal Fund

Oppenheimer Rochester® Michigan Municipal Fund

Oppenheimer Rochester® Minnesota Municipal Fund

Oppenheimer Rochester® North Carolina Municipal Fund

Oppenheimer Rochester® Ohio Municipal Fund

Oppenheimer Rochester® Short Term Municipal Fund

Oppenheimer Rochester® Virginia Municipal Fund

Oppenheimer Senior Floating Rate Fund

Oppenheimer Senior Floating Rate Plus Fund

Oppenheimer Value Fund

Oppenheimer SteelPath MLP Alpha Fund

Oppenheimer SteelPath MLP Alpha Plus Fund

Oppenheimer SteelPath MLP Income Fund

Oppenheimer SteelPath MLP Select 40 Fund

Oppenheimer SteelPath Panoramic Fund

Oppenheimer Ultra-Short Duration Fund

Supplement dated November 20, 2015 to the

Prospectus and Statement of Additional Information

This supplement amends the Prospectus and Statement of Additional Information (“SAI”) of each of the above referenced funds (each, a “Fund”), and is in addition to any other supplement(s).

Effective immediately for each Fund except for Oppenheimer Institutional Money Market Fund:

1. With respect to Oppenheimer Cash Reserves and Oppenheimer Money Market Fund, the first paragraph in the section titled “Portfolio Holdings” in the Prospectus is deleted and replaced by the following:

Portfolio Holdings. The Fund's portfolio holdings, as of the most recent prior Valuation Time (defined in “Net Asset Value”), are posted on the Fund's website at www.oppenheimerfunds.com on each regular business day. Therefore, the Fund's portfolio holdings are made publicly available no later than one regular business day after the Valuation Time on each regular business day.

2. The first paragraph in the section titled “Net Asset Value” in the Prospectus is deleted and replaced by the following:

Net Asset Value. The Fund calculates the net asset value of each class of shares based on the value of the Fund’s portfolio determined as of 4:00 p.m, Eastern time, on each day the New York Stock Exchange (the “NYSE”) is open for trading (referred to in this prospectus as a “regular business day”), except in the case of a NYSE scheduled early closing, in which case the Fund will calculate the net asset value of each class of shares based on the value of the Fund’s portfolio determined as of the NYSE scheduled early closing time (the “Valuation Time”).

3. The paragraph titled “Buying Shares” in the Prospectus is deleted and replaced by the following:

Buying Shares. You can buy shares in several ways. The Distributor has appointed certain financial intermediaries, including brokers, dealers and others, as servicing agents to accept purchase and redemption orders. The Distributor or servicing agent must receive your order, in proper form, before the Valuation Time for you to receive that day’s offering price. If your order is received on a day other than a regular business day or after the Valuation Time, the order will receive the next offering price that is determined. To be in proper form, your purchase order must comply with the procedures described below. If you submit a purchase request without designating which Oppenheimer fund you wish to invest in or if the selected Oppenheimer fund or share class is no longer offered, your investments will be made in Class A shares of Oppenheimer Money Market Fund. This policy does not apply to purchases by or for certain retirement plans or accounts. The Distributor, in its sole discretion, may reject any purchase order for the Fund’s shares.

4. The paragraph titled “Timing of Exchange Transactions” in the Prospectus is deleted and replaced by the following:

Timing of Exchange Transactions. Exchanged shares are normally redeemed from one fund and the proceeds are reinvested in the fund selected for exchange on the same regular business day on which the Transfer Agent or its agent (such as a financial intermediary holding the investor’s shares in an “omnibus” or “street name” account) receives an exchange request that conforms to these policies. The request must be received before the Valuation Time on that day in order to receive that day’s net asset value on the exchanged shares. For requests received after the Valuation Time the shares being exchanged will be valued at the next net asset value calculated after the request is received. The Transfer Agent may delay transmitting the proceeds from an exchange for up to five business days, if it determines, in its discretion, that an earlier transmittal of the redemption proceeds would be detrimental to either the fund from which shares are being exchanged or the fund into which the exchange is being made. The exchange proceeds will be invested in the new fund at the next net asset value calculated after the proceeds are received. In the event that a delay in the reinvestment of proceeds occurs, the Transfer Agent will notify you or your financial intermediary.

5. With respect to Oppenheimer Cash Reserves and Oppenheimer Money Market Fund, the second paragraph in the section titled “Portfolio Holdings Disclosure Policies” in the SAI is deleted and replaced by the following:

The Fund's portfolio holdings, as of the most recent prior Valuation Time (defined in “Net Asset Value”), are posted on the Fund's website at www.oppenheimerfunds.com on each regular business day. Therefore, the Fund's portfolio holdings are made publicly available no later than one regular business day after the Valuation Time on each regular business day. The Fund's portfolio holdings are also made publicly available no later than 60 days after the close of each of the Fund's fiscal quarters in its semi-annual and annual report to shareholders, or in its Schedule of Investment on Form N-Q. Those documents are publicly available at the SEC. Additionally, the Fund posts its portfolio holdings with additional detail on a monthly basis on the Fund's website and files information on its holdings quarterly with the SEC on Form N-MFP, which is available on both the Fund's website and the SEC's website.

6. The first paragraph in the section titled “Determination of Net Asset Value Per Share” in the SAI is deleted and replaced by the following:

Determination of Net Asset Value Per Share. The net asset value, or "NAV,” per share for each class of shares of the Fund is determined by dividing the value of the Fund’s net assets attributable to a class by the number of shares of that class that are outstanding. The NAV is determined as of 4 p.m., Eastern time, on each day that the New York Stock Exchange (the “NYSE”) is open, except in the case of a NYSE scheduled early closing, in which case the Fund will calculate the net asset value of each class of shares as of the NYSE scheduled early closing time (the “Valuation Time”). The NYSE’s most recent annual announcement (which is subject to change) states that it will close on New Year’s Day, Martin Luther King, Jr. Day, Washington’s Birthday (Presidents Day), Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day. It may also close on other days.

7. With respect to each Fund other than Oppenheimer Cash Reserves, Oppenheimer Money Market Fund, Oppenheimer Rochester High Yield Municipal Fund, Oppenheimer Rochester New Jersey Municipal Fund, Oppenheimer Rochester Pennsylvania Municipal Fund, Oppenheimer Rochester Limited Term Municipal Fund, Oppenheimer Rochester AMT-Free Municipal Fund, Oppenheimer Rochester AMT-Free New York Municipal Fund, Oppenheimer Rochester Arizona Municipal Fund, Oppenheimer Rochester California Municipal Fund, Oppenheimer Rochester Fund Municipals, Oppenheimer Rochester Intermediate Term Municipal Fund, Oppenheimer Rochester Limited Term California Municipal Fund, Oppenheimer Rochester Limited Term New York Municipal Fund, Oppenheimer Rochester Maryland Municipal Fund , Oppenheimer Rochester Massachusetts Municipal Fund, Oppenheimer Rochester Michigan Municipal Fund, Oppenheimer Rochester Minnesota Municipal Fund, Oppenheimer Rochester North Carolina Municipal Fund, Oppenheimer Rochester Ohio Municipal Fund, Oppenheimer Rochester Short Term Municipal Fund, and Oppenheimer Rochester Virginia Municipal Fund, the second and third paragraphs in the section titled “Determination of Net Asset Value Per Share” in the SAI are deleted and replaced by the following:

Dealers other than NYSE members may conduct trading in certain securities on days that the NYSE is closed (including weekends and holidays) or after 4:00 p.m. on a regular business day. Because the Fund’s net asset values will not be calculated on those days, the Fund’s net asset values per share may be significantly affected on days when shareholders may not purchase or redeem shares. Additionally, trading on many foreign stock exchanges and over-the-counter markets normally is completed before the Valuation Time.

Changes in the values of securities traded on foreign exchanges or markets as a result of events that occur after the close of the principal market on which a security is traded, but before the Valuation Time, will not be reflected in the Fund’s calculation of its net asset values that day unless the investment adviser learns of the event and determines that the event is likely to cause a material change in the value of the security. Additionally, the investment adviser has contracted with a pricing service or other vendor that provides a methodology to assist in monitoring for significant events that may materially affect the value of one or more securities of the Fund, or to adjust closing or evaluated prices of securities traded in foreign or domestic markets, based upon factors such as (without limitation) volatility of certain securities markets (measured by changes in an appropriate market index) and the correlation of a foreign security’s sensitivity to such U.S. market volatility. Subject to the investment adviser’s oversight and review, such methodology may be used to provide a fair valuation adjustment to market quotations, evaluated prices or other valuations of securities. The Board has adopted valuation procedures for the Fund and has delegated the day-to-day responsibility for fair value determinations under those procedures to the investment adviser’s “Valuation Committee”. Fair value determinations are subject to review, approval, ratification and confirmation by the Board at its next scheduled meeting after the fair valuations are determined.

8. The first paragraph in the section titled “AccountLink” in the SAI is deleted and replaced by the following:

AccountLink. Shares purchased through AccountLink will be purchased at the net asset value calculated on the same regular business day if the Distributor is instructed to initiate the Automated Clearing House (“ACH”) transfer to buy the shares before the Valuation Time. If the Distributor is instructed to initiate the ACH transfer after the Valuation Time, the shares will be purchased on the next regular business day.

9. The first paragraph in the section titled “Redeeming Shares Through Brokers or Dealers” in the SAI is deleted and replaced by the following:

Redeeming Shares Through Brokers or Dealers. The Distributor is the Fund’s agent to repurchase its shares from authorized brokers or dealers on behalf of their customers. Shareholders should contact their broker or dealer to arrange this type of redemption. The repurchase price per share will be the next net asset value computed after the Distributor or the broker or dealer receives the order. A repurchase will be processed at that day’s net asset value if the order was received by the broker or dealer from its customer prior to the Valuation Time.

10. The first paragraph in the section titled “Processing Exchange Requests” in the SAI is deleted and replaced by the following:

Processing Exchange Requests. Shares to be exchanged are redeemed at the net asset value calculated on the regular business day the Transfer Agent receives an exchange request in proper form before the Valuation Time (the “Redemption Date”). Normally, shares of the fund to be acquired are purchased on the Redemption Date, but such purchases may be delayed by up to five business days if it is determined that either fund would be disadvantaged by an immediate transfer of the redemption proceeds. The Fund reserves the right, in its discretion, to refuse any exchange request that may disadvantage it. For example, if the receipt of multiple exchange requests from a dealer might require the disposition of portfolio securities at a time or at a price that might be disadvantageous to the Fund, the Fund may refuse the request.

Effective immediately for each of Oppenheimer Capital Appreciation Fund, Oppenheimer Capital Income Fund, Oppenheimer Commodity Strategy Total Return Fund, Oppenheimer Core Bond Fund, Oppenheimer Corporate Bond Fund, Oppenheimer Developing Markets Fund, Oppenheimer Discovery Fund, Oppenheimer Discovery Mid Cap Growth Fund, Oppenheimer Dividend Opportunity Fund, Oppenheimer Emerging Markets Innovators Fund, Oppenheimer Emerging Markets Local Debt Fund, Oppenheimer Equity Fund, Oppenheimer Equity Income Fund, Oppenheimer Global Fund, Oppenheimer Global High Yield Fund, Oppenheimer Global Multi-Alternatives Fund, Oppenheimer Global Multi-Asset Income Fund, Oppenheimer Global Multi Strategies Fund, Oppenheimer Global Opportunities Fund, Oppenheimer Global Real Estate Fund, Oppenheimer Global Strategic Income Fund, Oppenheimer Global Value Fund, Oppenheimer Gold & Special Minerals Fund, Oppenheimer International Bond Fund, Oppenheimer International Diversified Fund, Oppenheimer International Growth Fund, Oppenheimer International Small Company Fund, Oppenheimer International Value Fund, Oppenheimer Limited-Term Bond Fund, Oppenheimer Limited-Term Government Fund, Oppenheimer Main Street Fund, Oppenheimer Main Street Mid Cap Fund, Oppenheimer Main Street Select Fund, Oppenheimer Main Street Small Cap Fund, Oppenheimer Portfolio Series: Active Allocation Fund, Oppenheimer Portfolio Series: Conservative Investor Fund, Oppenheimer Portfolio Series: Equity Investor Fund, Oppenheimer Portfolio Series: Moderate Investor Fund, Oppenheimer Fundamental Alternatives Fund, Oppenheimer Global Allocation Fund, Oppenheimer Mid Cap Value Fund, Oppenheimer Real Estate Fund, Oppenheimer Rising Dividends Fund, Oppenheimer Ultra-Short Duration Fund, and Oppenheimer Value Fund:

11. The section titled “Borrowing and Leverage” in the SAI is deleted and replaced by the following:

Borrowing and Leverage. The Fund can borrow from banks, as permitted by the Investment Company Act. The Fund also can borrow from banks and other lenders to meet redemption obligations or for temporary and emergency purposes. When the Fund borrows money for investment in other assets, it is using a speculative investment technique known as "leverage," and changes in the value of the Fund's investments will have a larger effect on its share price if the investments were acquired using leverage than if the Fund acquired assets without the use of leverage.

Under the Fund's investment policies, the Fund may not borrow money, except to the extent permitted under the Investment Company Act, the rules or regulations thereunder or any exemption from that Act that applies to the Fund. Currently, under the Investment Company Act, a mutual fund may borrow only from banks (other than for emergency purposes) and the maximum amount it may borrow is up to one-third of its total assets (including the amount borrowed), less all liabilities and indebtedness other than borrowings, meaning that the value of those assets must be at least equal to 300% of the amount borrowed. If the value of the Fund's assets fails to meet this 300% asset coverage requirement, the Fund will reduce the amount of its borrowings within three days to meet the requirement. To do so, the Fund might have to sell a portion of its investments at a disadvantageous time and for a disadvantageous price.

The Fund may also borrow up to 5% of its total assets for temporary or emergency purposes from any lender, including a non-bank. Under the Investment Company Act, there is a rebuttable presumption that a loan is temporary if it is repaid within 60 days and not extended or renewed.

The Fund will pay interest and may pay other fees in connection with loans. Interest expense and the amount of any other fees incurred by the Fund in connection with loans will raise the overall expenses of the Fund and may reduce its returns. If the Fund does borrow, its expenses will usually be greater than comparable funds that do not borrow. Additionally, if the Fund does borrow the use of leverage will make the Fund's share prices more sensitive to changes in the value of its assets and thus might cause the Fund's net asset value per share to fluctuate more than that of funds that do not borrow. Finally, on the maturity date for any loan, the Fund must have sufficient cash available to pay back the lenders the amount borrowed.

The Fund participates in a multi-borrower, unsecured, revolving line of credit along with certain other Oppenheimer funds (the "Line of Credit") and with a syndicate of banks as lenders. The Line of Credit permits combined borrowings by the Fund and these other Oppenheimer funds of up to a maximum aggregate amount, as negotiated from time to time. Borrowings by a Fund under the Line of Credit may only be used for temporary or emergency purposes, including without limitation, funding of shareholder redemptions, and may not be used for leverage. The Fund's Board has determined that the Fund's participation in the Line of Credit is consistent with the Fund's investment objective and policies and is in the best interests of the Fund and its shareholders.

Under the Line of Credit, interest is charged to the Fund, based on its borrowings, at a floating benchmark rate of interest plus a margin. Additionally, the Fund will pay quarterly its pro rata portion of a loan commitment fee for the Line of Credit, and pays an additional fee at each renewal of the facility (which is expected to be annually) to the administrative agent for management and administration of the facility. The Fund can prepay loans and terminate its participation in the Line of Credit at any time upon prior notice to the lenders, however each borrowing under the Line of Credit will have a scheduled maturity of 30 days. As a borrower under the Line of Credit, the Fund has certain rights and remedies under state and federal law comparable to those it would have with respect to a loan from a bank.

Effective immediately for each Fund offering Class I shares:

12. The three paragraphs immediately following the bullets in the section titled “About Class I Shares” in the Prospectus are deleted and replaced by the following:

Class I shares are not available directly to individual investors. Individual shareholders who purchase Class I shares through retirement plans or financial intermediaries will not be eligible to hold Class I shares outside of their respective retirement plan or financial intermediary platform.

An institutional investor that buys Class I shares for its customers' accounts may impose charges on those accounts. The procedures for buying, selling, exchanging and transferring the Fund's other classes of shares (other than the time those orders must be received by the Distributor, Transfer Agent or Sub-Transfer Agent at their Colorado office), and most of the special account features available to investors buying other classes of shares, do not apply to Class I shares.

The Fund, at its discretion, reserves the right to waive the minimum initial investment and minimum balance requirements for investment companies advised or sub-advised by the Manager or an affiliate of the Manager, and for certain investors otherwise eligible that provide investment products that reference Class I shares of the Fund as the underlying reference security.

No transfer agent fees, operational and recordkeeping, networking or sub-accounting fees, administrative fees, 12b-1 fees, commission payments, or so called “finder’s fees” will be paid with respect to Class I shares.

13. The last paragraph of the section titled “Class I Share Availability” in the SAI is deleted and replaced by the following:

No transfer agent fees, operational and recordkeeping, networking or sub-accounting fees, administrative fees, 12b-1 fees, commission payments, or so called “finder’s fees will be paid with respect to Class I shares. The Fund, at its discretion, reserves the right to waive the minimum initial investment and minimum balance requirements for investment companies advised or subadvised by the Manager or an affiliate of the Manager.

14. The section titled “Voluntary Conversion to Class I Shares” in the SAI is deleted and replaced by the following:

Voluntary Conversion to Class I Shares. Shareholders who currently hold other classes of Fund shares but are eligible to purchase Class I shares can convert their eligible existing shares to Class I shares of the Fund either through their financial intermediary or by submitting an application to the Transfer Agent. Shares that are subject to a contingent deferred sales charge ("CDSC") are not eligible to convert to Class I shares until the applicable CDSC period has expired. Upon conversion, payment of specific fees that may relate to the previous share class such as transfer agent fees, operational and recordkeeping, networking or sub-accounting fees, administrative fees, 12b-1 fees, commission payments, or so called “finders fees,” are subject to Class I share restrictions. Under current interpretations of applicable federal income tax law by the Internal Revenue Service, this voluntary conversion to Class I shares is not treated as a taxable event. If those laws or the IRS interpretation of those laws should change, this voluntary conversion feature may be suspended.

15. The last two paragraphs in the section titled “Retirement Plans” in the SAI are deleted and replaced by the following:

The Transfer Agent or Sub-Transfer Agent has entered into agreements with certain financial intermediaries whereby such intermediaries receive compensation for operational, record keeping, networking and sub- accounting services performed on behalf of the participant accounts in a retirement plan. While such compensation may act to reduce the record keeping fees charged by the retirement plan's record keeper, that compensation arrangement may be terminated at any time, potentially affecting the record keeping fees charged by the retirement plan's record keeper.

Financial intermediaries will not receive any transfer agent fees, operational and recordkeeping, networking or sub-accounting fees, administrative fees, 12b-1 fees, commission payments, or so called “finder’s fees” for Class I shares.

Effective immediately for each Fund offering Class I shares, except Oppenheimer SteelPath MLP Alpha Fund, Oppenheimer SteelPath MLP Alpha Plus Fund, Oppenheimer SteelPath MLP Income Fund, Oppenheimer SteelPath MLP Select 40 Fund, Oppenheimer SteelPath Panoramic Fund, and Oppenheimer International Diversified Fund:

16. The section titled “Payments to Financial Intermediaries and Service Providers” in the Prospectus is deleted and replaced by the following:

Payments to Financial Intermediaries and Service Providers. The Sub-Adviser and/or the Distributor, Transfer Agent and/or Sub-Transfer Agent, at their discretion, may also make payments to broker-dealers, other financial intermediaries or to service providers for some or all of the following services: distribution, promotional and marketing support, operational and recordkeeping, sub-accounting, networking and administrative services.

The types of financial intermediaries that may receive compensation for providing such services include, but are not limited to, broker-dealers, financial advisors, registered investment advisers, sponsors of fund “supermarkets,” sponsors of fee-based advisory or wrap fee-based programs, sponsors of college and retirement savings programs, banks, trust companies, retirement plan or qualified tuition program administrators, third party administrators, financial intermediaries that offer products that hold Fund shares, and insurance companies that offer variable annuity or variable life insurance products.

Payments for distribution or promotional and marketing support are made out of the Sub-Adviser's and/or the Distributor's own resources and/or assets, including from the revenues or profits derived from the advisory fees the Sub-Adviser receives from the Manager for sub-advisory services on behalf of the Fund. Such payments, which may be substantial, are paid to financial intermediaries who perform services for the Sub-Adviser, and/or the Distributor, and are in addition to payments made pursuant to an applicable 12b-1 plan. Such payments are separate from any commissions the Distributor pays to financial intermediaries out of the sales charges paid by investors.

Payments for distribution-related expenses and asset retention items, paid by the Sub-Adviser or the Distributor, such as marketing or promotional expenses, are often referred to as "revenue sharing." Revenue sharing payments may be made on the basis of the sales of shares attributable to that financial intermediary, the average net assets of the Fund and other Oppenheimer funds attributable to the accounts of that financial intermediary and its clients, negotiated lump sum payments for distribution services provided, or similar fees. In some circumstances, revenue sharing payments may create an incentive for a financial intermediary or its representatives to recommend or offer shares of the Fund or other Oppenheimer funds to its customers. These payments also may give a financial intermediary an incentive to cooperate with the Distributor's marketing efforts. A revenue sharing payment may, for example, qualify the Fund for preferred status with the financial intermediary receiving the payment or provide representatives of the Distributor with access to representatives of the financial intermediary's sales force, in some cases on a preferential basis over funds of competitors. Additionally, as firm support, the Sub-Adviser or Distributor may reimburse expenses, including, but not limited to, educational seminars and "due diligence" or training meetings (to the extent permitted by applicable laws or the rules of the Financial Industry Regulatory Authority ("FINRA")) designed to increase sales representatives' awareness about Oppenheimer funds, including travel and lodging expenditures. However, the Sub-Adviser or Distributor does not consider a financial intermediary's sale of shares of the Fund or other Oppenheimer funds when selecting brokers or dealers to effect portfolio transactions for the funds.

Various factors are used to determine whether to make revenue sharing payments. Possible considerations include, without limitation, the types of services provided by the financial intermediary, sales of Fund shares, the redemption rates on accounts of clients of the financial intermediary or overall asset levels of Oppenheimer funds held for or by clients of the financial intermediary, the willingness of the financial intermediary to allow the Distributor to provide educational and training support for the financial intermediary's sales personnel relating to the Oppenheimer funds, the availability of the Oppenheimer funds on the financial intermediary's sales system, as well as the overall quality of the services provided by the financial intermediary. The Sub-Adviser and Distributor have adopted guidelines for assessing and implementing each prospective revenue sharing arrangement. To the extent that financial intermediaries receiving distribution-related payments from the Sub-Adviser or Distributor sell more shares of the Oppenheimer funds or retain more shares of the funds in their client accounts, the Sub-Adviser and Distributor benefit from the incremental management and other fees they receive with respect to those assets.

Payments may be made by the Transfer Agent or Sub-Transfer Agent to financial intermediaries to compensate or reimburse them for services provided, such as sub-transfer agency services for shareholders or retirement plan participants, omnibus accounting or sub-accounting, participation in networking arrangements, operational and recordkeeping and other administrative services. These payments are made out of the Transfer Agent’s or Sub-Transfer Agent’s own resources and/or assets, including from the revenues or profits derived from the transfer agency fees the Transfer Agent receives from the Fund. Financial intermediaries that may receive these fees for providing services may include, but are not limited to, retirement plan administrators, qualified tuition program sponsors, banks and trust companies, broker-dealers, and insurance companies that offer variable annuity or variable life insurance products, and other financial intermediaries. These fees may be used by the financial intermediary to offset or reduce fees that would otherwise be paid directly to them by certain account holders, such as retirement plans.

Payments made by the Sub-Adviser, and/or the Distributor, the Transfer Agent and Sub-Transfer Agent are not reflected in the tables in the “Fees and Expenses of the Fund” section of this prospectus because they are not paid by the Fund.

Financial intermediaries will not receive any transfer agent fees, operational and recordkeeping, networking or sub-accounting fees, administrative fees, 12b-1 fees, commission payments, or so called “finder’s fees” for Class I shares.

The Statement of Additional Information contains more information about revenue sharing payments made by the Sub-Adviser and/or Distributor and operational and recordkeeping, networking and sub-accounting payments made by the Transfer Agent and/or Sub-Transfer Agent. Your broker-dealer or other financial intermediary may charge you fees or commissions in addition to those disclosed in this prospectus. You should ask your financial intermediary for details about any such payments it receives from the Sub-Adviser, Distributor, Transfer Agent or Sub-Transfer Agent, or any other fees or expenses it charges.

17. The first four sections through the last set of bullet points in the section titled “Payments to Financial Intermediaries” in the SAI are deleted and replaced by the following:

Financial intermediaries may receive various forms of compensation or reimbursement in the form of 12b-1 distribution and service plan payments as described in the preceding section. They may also receive payments or concessions from the Distributor, derived from sales charges paid by the financial intermediary's clients, also described in this SAI. In addition, the Sub-Adviser, the Transfer Agent, Sub-Transfer Agent and the Distributor may make payments to broker-dealers, other financial intermediaries or to service providers for some or all of the following services: distribution, promotional and marketing support, operational and recordkeeping, sub-accounting, networking and administrative services.

The types of financial intermediaries that may receive compensation for providing such services include, but are not limited to, broker-dealers, financial advisors, registered investment advisers, sponsors of fund “supermarkets,” sponsors of fee-based advisory or wrap fee-based programs, sponsors of college and retirement savings programs, banks, trust companies, retirement plan or qualified tuition program administrators, third party administrators, financial intermediaries that offer products that hold Fund shares, and insurance companies that offer variable annuity or variable life insurance products.

Types of payments to financial intermediaries may include, without limitation, all or portions of the following:

1. Payments made by the Fund, or by an investor buying or selling shares of the Fund, including:

· an initial front-end sales charge, all or a portion of which is payable by the Distributor to financial intermediaries (see the "More About Your Account" section in the Prospectus); and

· ongoing asset-based distribution and/or service fees (described in the section "Distribution and Service Arrangements - Distribution and Service (12b-1) Plans" above).

2. Payments made by the Transfer Agent or Sub-Transfer Agent to financial intermediaries, to compensate or reimburse them for services provided, such as sub-transfer agency services for shareholders or retirement plan participants, omnibus accounting or sub-accounting, participation in networking arrangements, operational and recordkeeping and other administrative services. These payments are made out of the Transfer Agent’s or Sub-Transfer Agent’s own resources and/or assets, including from the revenues or profits derived from the transfer agency fees the Transfer Agent receives from the Fund.

Financial intermediaries will not receive any transfer agent fees, operational and recordkeeping, networking or sub-accounting fees, administrative fees, 12b-1 fees, commission payments, or so called “finder’s fees” for Class I shares.

3. In addition, the Sub-Adviser or Distributor may, at their discretion, make the following types of payments from their own resources and/or assets, including from the revenues or profits derived from the advisory fees the Sub-Adviser receives from the Manager for sub-advisory services on behalf of the Fund. Payments are made based on the guidelines established by the Sub-Adviser and Distributor, subject to applicable law. These payments are often referred to as "revenue sharing" payments, and may include, but are not limited to:

· compensation for marketing or promotional support, support provided in offering shares in the Fund or other Oppenheimer funds through certain trading platforms and programs, and other promotional or marketing services; and

· other compensation, to the extent the payment is not prohibited by law or by any self-regulatory agency, such as FINRA.

4. The Distributor may also provide, accept and/or cover the cost of certain non-cash compensation items, subject to internal policies and applicable FINRA regulations.

Although an intermediary that sells Fund shares may also act as a broker or dealer in connection with the purchase or sale of portfolio securities by the Fund or other Oppenheimer funds, neither the Manager, the Sub-Adviser nor any advisory affiliate considers a financial intermediary's sales of shares of the Fund or other Oppenheimer funds when choosing brokers or dealers to effect portfolio transactions for the Fund or other Oppenheimer funds.

Revenue sharing payments can pay for distribution-related or asset retention items including, without limitation:

· charges for setting up access for the Fund or other Oppenheimer funds on particular trading systems;

· marketing, promotional support and program support, such as expenses related to including the Oppenheimer funds in retirement plans, college savings plans, fee-based advisory or wrap fee-based programs, fund "supermarkets," bank or trust company products or insurance companies' variable annuity or variable life insurance products;

· placement on the dealer's list of offered funds;

· providing representatives of the Distributor with access to a financial intermediary's sales meetings, sales representatives and management representatives; or

· firm support, which may include, but is not limited to, business planning assistance, “due diligence” or training meetings, advertising, or educating a financial intermediary's sales personnel about the Oppenheimer funds.

Effective immediately for each of Oppenheimer SteelPath MLP Alpha Fund, Oppenheimer SteelPath MLP Alpha Plus Fund, Oppenheimer SteelPath MLP Income Fund, Oppenheimer SteelPath MLP Select 40 Fund, and Oppenheimer SteelPath Panoramic Fund:

18. The section titled “Payments to Financial Intermediaries and Service Providers” in the Prospectus is deleted and replaced by the following:

Payments to Financial Intermediaries and Service Providers. The Manager and/or the Distributor, Transfer Agent and/or Sub-Transfer Agent, at their discretion, may also make payments to broker-dealers, other financial intermediaries or to service providers for some or all of the following services: distribution, promotional and marketing support, operational and recordkeeping, sub-accounting, networking and administrative services.

The types of financial intermediaries that may receive compensation for providing such services include, but are not limited to, broker-dealers, financial advisors, registered investment advisers, sponsors of fund “supermarkets,” sponsors of fee-based advisory or wrap fee-based programs, sponsors of college and retirement savings programs, banks, trust companies, retirement plan or qualified tuition program administrators, third party administrators, financial intermediaries that offer products that hold Fund shares, and insurance companies that offer variable annuity or variable life insurance products.

Payments for distribution or promotional and marketing support are made out of the Manager's and/or the Distributor's own resources and/or assets, including from the revenues or profits derived from the advisory fees the Manager receives from the Fund. Such payments, which may be substantial, are paid to financial intermediaries who perform services for the Manager, and/or the Distributor, and are in addition to payments made pursuant to an applicable 12b-1 plan. Such payments are separate from any commissions the Distributor pays to financial intermediaries out of the sales charges paid by investors.

Payments for distribution-related expenses and asset retention items, paid by the Manager or the Distributor, such as marketing or promotional expenses, are often referred to as "revenue sharing." Revenue sharing payments may be made on the basis of the sales of shares attributable to that financial intermediary, the average net assets of the Fund and other Oppenheimer funds attributable to the accounts of that financial intermediary and its clients, negotiated lump sum payments for distribution services provided, or similar fees. In some circumstances, revenue sharing payments may create an incentive for a financial intermediary or its representatives to recommend or offer shares of the Fund or other Oppenheimer funds to its customers. These payments also may give a financial intermediary an incentive to cooperate with the Distributor's marketing efforts. A revenue sharing payment may, for example, qualify the Fund for preferred status with the financial intermediary receiving the payment or provide representatives of the Distributor with access to representatives of the financial intermediary's sales force, in some cases on a preferential basis over funds of competitors. Additionally, as firm support, the Manager or Distributor may reimburse expenses including, but not limited to, educational seminars and "due diligence" or training meetings (to the extent permitted by applicable laws or the rules of the Financial Industry Regulatory Authority ("FINRA")) designed to increase sales representatives' awareness about Oppenheimer funds, including travel and lodging expenditures. However, the Manager or Distributor does not consider a financial intermediary's sale of shares of the Fund or other Oppenheimer funds when selecting brokers or dealers to effect portfolio transactions for the funds.

Various factors are used to determine whether to make revenue sharing payments. Possible considerations include, without limitation, the types of services provided by the financial intermediary, sales of Fund shares, the redemption rates on accounts of clients of the financial intermediary or overall asset levels of Oppenheimer funds held for or by clients of the financial intermediary, the willingness of the financial intermediary to allow the Distributor to provide educational and training support for the financial intermediary's sales personnel relating to the Oppenheimer funds, the availability of the Oppenheimer funds on the financial intermediary's sales system, as well as the overall quality of the services provided by the financial intermediary. The Manager and Distributor have adopted guidelines for assessing and implementing each prospective revenue sharing arrangement. To the extent that financial intermediaries receiving distribution-related payments from the Manager or Distributor sell more shares of the Oppenheimer funds or retain more shares of the funds in their client accounts, the Manager and Distributor benefit from the incremental management and other fees they receive with respect to those assets.

Payments may be made by the Transfer Agent or Sub-Transfer Agent to financial intermediaries to compensate or reimburse them for services provided, such as sub-transfer agency services for shareholders or retirement plan participants, omnibus accounting or sub-accounting, participation in networking arrangements, operational and recordkeeping and other administrative services. These payments are made out of the Transfer Agent’s or Sub-Transfer Agent’s own resources and/or assets, including from the revenues or profits derived from the transfer agency fees the Transfer Agent receives from the Fund. Financial intermediaries that may receive these fees for providing services may include, but are not limited to, retirement plan administrators, qualified tuition program sponsors, banks and trust companies, broker-dealers, and insurance companies that offer variable annuity or variable life insurance products, and other financial intermediaries. These fees may be used by the financial intermediary to offset or reduce fees that would otherwise be paid directly to them by certain account holders, such as retirement plans.

Payments made by the Manager, and/or the Distributor, the Transfer Agent and Sub-Transfer Agent are not reflected in the tables in the “Fees and Expenses of the Fund” section of this prospectus because they are not paid by the Fund.

Financial intermediaries will not receive any transfer agent fees, operational and recordkeeping, networking or sub-accounting fees, administrative fees, 12b-1 fees, commission payments, or so called “finder’s fees” for Class I shares.

The Statement of Additional Information contains more information about revenue sharing payments made by the Manager and/or Distributor and operational and recordkeeping, networking and sub-accounting payments made by the Transfer Agent and/or Sub-Transfer Agent. Your broker-dealer or other financial intermediary may charge you fees or commissions in addition to those disclosed in this prospectus. You should ask your financial intermediary for details about any such payments it receives from the Manager, Distributor, Transfer Agent or Sub-Transfer Agent, or any other fees or expenses it charges.

19. The first four sections through the last set of bullet points in the section titled “Payments to Financial Intermediaries” in the SAI are deleted and replaced by the following:

Financial intermediaries may receive various forms of compensation or reimbursement in the form of 12b-1 distribution and service plan payments as described in the preceding section. They may also receive payments or concessions from the Distributor, derived from sales charges paid by the financial intermediary's clients, also described in this SAI. In addition, the Manager, the Transfer Agent, Sub-Transfer Agent and the Distributor may make payments to broker-dealers, other financial intermediaries or to service providers for some or all of the following services: distribution, promotional and marketing support, operational and recordkeeping, sub-accounting, networking and administrative services.

The types of financial intermediaries that may receive compensation for providing such services include, but are not limited to, broker-dealers, financial advisors, registered investment advisers, sponsors of fund “supermarkets,” sponsors of fee-based advisory or wrap fee-based programs, sponsors of college and retirement savings programs, banks, trust companies, retirement plan or qualified tuition program administrators, third party administrators, financial intermediaries that offer products that hold Fund shares, and insurance companies that offer variable annuity or variable life insurance products.

Types of payments to financial intermediaries may include, without limitation, all or portions of the following:

1. Payments made by the Fund, or by an investor buying or selling shares of the Fund, including:

· an initial front-end sales charge, all or a portion of which is payable by the Distributor to financial intermediaries (see the "More About Your Account" section in the Prospectus); and

· ongoing asset-based distribution and/or service fees (described in the section "Distribution and Service Arrangements - Distribution and Service (12b-1) Plans" above).

2. Payments made by the Transfer Agent or Sub-Transfer Agent to financial intermediaries, to compensate or reimburse them for services provided, such as sub-transfer agency services for shareholders or retirement plan participants, omnibus accounting or sub-accounting, participation in networking arrangements, operational and recordkeeping and other administrative services. These payments are made out of the Transfer Agent’s or Sub-Transfer Agent’s own resources and/or assets, including from the revenues or profits derived from the transfer agency fees the Transfer Agent receives from the Fund.

Financial intermediaries will not receive any transfer agent fees, operational and recordkeeping, networking or sub-accounting fees, administrative fees, 12b-1 fees, commission payments, or so called “finder’s fees” for Class I shares.

3. In addition, the Manager or Distributor may, at their discretion, make the following types of payments from their own resources and/or assets, including from the revenues or profits derived from the advisory fees the Manager receives from the Fund. Payments are made based on the guidelines established by the Manager and Distributor, subject to applicable law. These payments are often referred to as "revenue sharing" payments, and may include, but are not limited to:

· compensation for marketing or promotional support, support provided in offering shares in the Fund or other Oppenheimer funds through certain trading platforms and programs, and other promotional or marketing services; and

· other compensation, to the extent the payment is not prohibited by law or by any self-regulatory agency, such as FINRA.

4. The Distributor may also provide, accept and/or cover the cost of certain non-cash compensation items, subject to internal policies and applicable FINRA regulations.

Although an intermediary that sells Fund shares may also act as a broker or dealer in connection with the purchase or sale of portfolio securities by the Fund or other Oppenheimer funds, neither the Manager nor any advisory affiliate considers a financial intermediary's sales of shares of the Fund or other Oppenheimer funds when choosing brokers or dealers to effect portfolio transactions for the Fund or other Oppenheimer funds.

Revenue sharing payments can pay for distribution-related or asset retention items including, without limitation:

· charges for setting up access for the Fund or other Oppenheimer funds on particular trading systems;

· marketing, promotional support and program support, such as expenses related to including the Oppenheimer funds in retirement plans, college savings plans, fee-based advisory or wrap fee-based programs, fund "supermarkets," bank or trust company products or insurance companies' variable annuity or variable life insurance products;

· placement on the dealer's list of offered funds;

· providing representatives of the Distributor with access to a financial intermediary's sales meetings, sales representatives and management representatives; or

· firm support, which may include, but is not limited to, business planning assistance, “due diligence” or training meetings, advertising, or educating a financial intermediary's sales personnel about the Oppenheimer funds.

Effective immediately for Oppenheimer International Diversified Fund:

20. The section titled “Payments to Financial Intermediaries and Service Providers” in the Prospectus is deleted and replaced by the following:

Payments to Financial Intermediaries and Service Providers. The Sub-Adviser and/or the Distributor, Transfer Agent and/or Sub-Transfer Agent, at their discretion, may also make payments to broker-dealers, other financial intermediaries or to service providers for some or all of the following services: distribution, promotional and marketing support, operational and recordkeeping, sub-accounting, networking and administrative services.

The types of financial intermediaries that may receive compensation for providing such services include, but are not limited to, broker-dealers, financial advisors, registered investment advisers, sponsors of fund “supermarkets,” sponsors of fee-based advisory or wrap fee-based programs, sponsors of college and retirement savings programs, banks, trust companies, retirement plan or qualified tuition program administrators, third party administrators, financial intermediaries that offer products that hold Fund shares, and insurance companies that offer variable annuity or variable life insurance products.

Payments for distribution or promotional and marketing support are made out of the Sub-Adviser's and/or the Distributor's own resources and/or assets, including from the revenues or profits derived from the advisory fees the Sub-Adviser receives from the Manager for sub-advisory services on behalf of the Underlying Funds (and indirectly, on behalf of the Fund). Such payments, which may be substantial, are paid to financial intermediaries who perform services for the Sub-Adviser, and/or the Distributor, and are in addition to payments made pursuant to an applicable 12b-1 plan. Such payments are separate from any commissions the Distributor pays to financial intermediaries out of the sales charges paid by investors.

Payments for distribution-related expenses and asset retention items, paid by the Sub-Adviser or the Distributor, such as marketing or promotional expenses, are often referred to as "revenue sharing." Revenue sharing payments may be made on the basis of the sales of shares attributable to that financial intermediary, the average net assets of the Fund and other Oppenheimer funds (including the Underlying Funds) attributable to the accounts of that financial intermediary and its clients, negotiated lump sum payments for distribution services provided, or similar fees. In some circumstances, revenue sharing payments may create an incentive for a financial intermediary or its representatives to recommend or offer shares of the Fund or other Oppenheimer funds to its customers. These payments also may give a financial intermediary an incentive to cooperate with the Distributor's marketing efforts. A revenue sharing payment may, for example, qualify the Fund for preferred status with the financial intermediary receiving the payment or provide representatives of the Distributor with access to representatives of the financial intermediary's sales force, in some cases on a preferential basis over funds of competitors. Additionally, as firm support, the Sub-Adviser or Distributor may reimburse expenses, including, but not limited to, educational seminars and "due diligence" or training meetings (to the extent permitted by applicable laws or the rules of the Financial Industry Regulatory Authority ("FINRA")) designed to increase sales representatives' awareness about Oppenheimer funds, including travel and lodging expenditures. However, the Sub-Adviser or Distributor does not consider a financial intermediary's sale of shares of the Fund, the Underlying Funds, or other Oppenheimer funds when selecting brokers or dealers to effect portfolio transactions for the funds.

Various factors are used to determine whether to make revenue sharing payments. Possible considerations include, without limitation, the types of services provided by the financial intermediary, sales of Fund shares, the redemption rates on accounts of clients of the financial intermediary or overall asset levels of Oppenheimer funds held for or by clients of the financial intermediary, the willingness of the financial intermediary to allow the Distributor to provide educational and training support for the financial intermediary's sales personnel relating to the Oppenheimer funds, the availability of the Oppenheimer funds on the financial intermediary's sales system, as well as the overall quality of the services provided by the financial intermediary. The Sub-Adviser and Distributor have adopted guidelines for assessing and implementing each prospective revenue sharing arrangement. To the extent that financial intermediaries receiving distribution-related payments from the Sub-Adviser or Distributor sell more shares of the Oppenheimer funds or retain more shares of the funds in their client accounts, the Sub-Adviser and Distributor benefit from the incremental management and other fees they receive with respect to those assets.

Payments may be made by the Transfer Agent or Sub-Transfer Agent to financial intermediaries to compensate or reimburse them for services provided, such as sub-transfer agency services for shareholders or retirement plan participants, omnibus accounting or sub-accounting, participation in networking arrangements, operational and recordkeeping and other administrative services. These payments are made out of the Transfer Agent’s or Sub-Transfer Agent’s own resources and/or assets, including from the revenues or profits derived from the transfer agency fees the Transfer Agent receives from the Fund. Financial intermediaries that may receive these fees for providing services may include, but are not limited to, retirement plan administrators, qualified tuition program sponsors, banks and trust companies, broker-dealers, and insurance companies that offer variable annuity or variable life insurance products, and other financial intermediaries. These fees may be used by the financial intermediary to offset or reduce fees that would otherwise be paid directly to them by certain account holders, such as retirement plans.

Payments made by the Sub-Adviser, and/or the Distributor, the Transfer Agent and Sub-Transfer Agent are not reflected in the tables in the “Fees and Expenses of the Fund” section of this prospectus because they are not paid by the Fund.

Financial intermediaries will not receive any transfer agent fees, operational and recordkeeping, networking or sub-accounting fees, administrative fees, 12b-1 fees, commission payments, or so called “finder’s fees” for Class I shares.

The Statement of Additional Information contains more information about revenue sharing payments made by the Sub-Adviser and/or Distributor and operational and recordkeeping, networking and sub-accounting payments made by the Transfer Agent and/or Sub-Transfer Agent. Your broker-dealer or other financial intermediary may charge you fees or commissions in addition to those disclosed in this prospectus. You should ask your financial intermediary for details about any such payments it receives from the Sub-Adviser, Distributor, Transfer Agent or Sub-Transfer Agent, or any other fees or expenses it charges.

21. The first four sections through the last set of bullet points in the section titled “Payments to Financial Intermediaries” in the SAI are deleted and replaced by the following:

Financial intermediaries may receive various forms of compensation or reimbursement in the form of 12b-1 distribution and service plan payments as described in the preceding section. They may also receive payments or concessions from the Distributor, derived from sales charges paid by the financial intermediary's clients, also described in this SAI. In addition, the Sub-Adviser, the Transfer Agent, Sub-Transfer Agent and the Distributor may make payments to broker-dealers, other financial intermediaries or to service providers for some or all of the following services: distribution, promotional and marketing support, operational and recordkeeping, sub-accounting, networking and administrative services.

The types of financial intermediaries that may receive compensation for providing such services include, but are not limited to, broker-dealers, financial advisors, registered investment advisers, sponsors of fund “supermarkets,” sponsors of fee-based advisory or wrap fee-based programs, sponsors of college and retirement savings programs, banks, trust companies, retirement plan or qualified tuition program administrators, third party administrators, financial intermediaries that offer products that hold Fund shares, and insurance companies that offer variable annuity or variable life insurance products.

Types of payments to financial intermediaries may include, without limitation, all or portions of the following:

1. Payments made by the Fund, or by an investor buying or selling shares of the Fund, including:

· an initial front-end sales charge, all or a portion of which is payable by the Distributor to financial intermediaries (see the "More About Your Account" section in the Prospectus); and

· ongoing asset-based distribution and/or service fees (described in the section "Distribution and Service Arrangements - Distribution and Service (12b-1) Plans" above).

2. Payments made by the Transfer Agent or Sub-Transfer Agent to financial intermediaries, to compensate or reimburse them for services provided, such as sub-transfer agency services for shareholders or retirement plan participants, omnibus accounting or sub-accounting, participation in networking arrangements, operational and recordkeeping and other administrative services. These payments are made out of the Transfer Agent’s or Sub-Transfer Agent’s own resources and/or assets, including from the revenues or profits derived from the transfer agency fees the Transfer Agent receives from the Fund.

Financial intermediaries will not receive any transfer agent fees, operational and recordkeeping, networking or sub-accounting fees, administrative fees, 12b-1 fees, commission payments, or so called “finder’s fees” for Class I shares.

3. In addition, the Sub-Adviser or Distributor may, at their discretion, make the following types of payments from their own resources and/or assets, including from the revenues or profits derived from the advisory fees the Sub-Adviser receives from the Manager for sub-advisory services on behalf of the Underlying Funds (and indirectly, on behalf of the Fund). Payments are made based on the guidelines established by the Sub-Adviser and Distributor, subject to applicable law. These payments are often referred to as "revenue sharing" payments, and may include, but are not limited to:

· compensation for marketing or promotional support, support provided in offering shares in the Fund or other Oppenheimer funds, including the Underlying Funds, through certain trading platforms and programs, and other promotional or marketing services; and

· other compensation, to the extent the payment is not prohibited by law or by any self-regulatory agency, such as FINRA.

4. The Distributor may also provide, accept and/or cover the cost of certain non-cash compensation items, subject to internal policies and applicable FINRA regulations.

Although an intermediary that sells Fund shares may also act as a broker or dealer in connection with the purchase or sale of portfolio securities by the Fund, the Underlying Funds, or other Oppenheimer funds, neither the Manager, the Sub-Adviser nor any advisory affiliate considers a financial intermediary's sales of shares of the Fund, the Underlying Funds, or other Oppenheimer funds when choosing brokers or dealers to effect portfolio transactions for the Fund or other Oppenheimer funds.

Revenue sharing payments can pay for distribution-related or asset retention items including, without limitation:

· charges for setting up access for the Fund or other Oppenheimer funds on particular trading systems;

· marketing, promotional support and program support, such as expenses related to including the Oppenheimer funds in retirement plans, college savings plans, fee-based advisory or wrap fee-based programs, fund "supermarkets," bank or trust company products or insurance companies' variable annuity or variable life insurance products;

· placement on the dealer's list of offered funds;

· providing representatives of the Distributor with access to a financial intermediary's sales meetings, sales representatives and management representatives; or

· firm support, which may include, but is not limited to, business planning assistance, “due diligence” or training meetings, advertising, or educating a financial intermediary's sales personnel about the Oppenheimer funds.

Effective immediately for each Fund that does not offer Class I shares:

22. The section titled “Payments to Financial Intermediaries and Service Providers” in the Prospectus is deleted and replaced by the following:

Payments to Financial Intermediaries and Service Providers. The Sub-Adviser and/or the Distributor, Transfer Agent and/or Sub-Transfer Agent, at their discretion, may also make payments to broker-dealers, other financial intermediaries or to service providers for some or all of the following services: distribution, promotional and marketing support, operational and recordkeeping, sub-accounting, networking and administrative services.

The types of financial intermediaries that may receive compensation for providing such services include, but are not limited to, broker-dealers, financial advisors, registered investment advisers, sponsors of fund “supermarkets,” sponsors of fee-based advisory or wrap fee-based programs, sponsors of college and retirement savings programs, banks, trust companies, retirement plan or qualified tuition program administrators, third party administrators, financial intermediaries that offer products that hold Fund shares, and insurance companies that offer variable annuity or variable life insurance products.

Payments for distribution or promotional and marketing support are made out of the Sub-Adviser's and/or the Distributor's own resources and/or assets, including from the revenues or profits derived from the advisory fees the Sub-Adviser receives from the Manager for sub-advisory services on behalf of the Fund. Such payments, which may be substantial, are paid to financial intermediaries who perform services for the Sub-Adviser, and/or the Distributor, and are in addition to payments made pursuant to an applicable 12b-1 plan. Such payments are separate from any commissions the Distributor pays to financial intermediaries out of the sales charges paid by investors.

Payments for distribution-related expenses and asset retention items, paid by the Sub-Adviser or the Distributor, such as marketing or promotional expenses, are often referred to as "revenue sharing." Revenue sharing payments may be made on the basis of the sales of shares attributable to that financial intermediary, the average net assets of the Fund and other Oppenheimer funds attributable to the accounts of that financial intermediary and its clients, negotiated lump sum payments for distribution services provided, or similar fees. In some circumstances, revenue sharing payments may create an incentive for a financial intermediary or its representatives to recommend or offer shares of the Fund or other Oppenheimer funds to its customers. These payments also may give a financial intermediary an incentive to cooperate with the Distributor's marketing efforts. A revenue sharing payment may, for example, qualify the Fund for preferred status with the financial intermediary receiving the payment or provide representatives of the Distributor with access to representatives of the financial intermediary's sales force, in some cases on a preferential basis over funds of competitors. Additionally, as firm support, the Sub-Adviser or Distributor may reimburse expenses, including, but not limited to, educational seminars and "due diligence" or training meetings (to the extent permitted by applicable laws or the rules of the Financial Industry Regulatory Authority ("FINRA")) designed to increase sales representatives' awareness about Oppenheimer funds, including travel and lodging expenditures. However, the Sub-Adviser or Distributor does not consider a financial intermediary's sale of shares of the Fund or other Oppenheimer funds when selecting brokers or dealers to effect portfolio transactions for the funds.

Various factors are used to determine whether to make revenue sharing payments. Possible considerations include, without limitation, the types of services provided by the financial intermediary, sales of Fund shares, the redemption rates on accounts of clients of the financial intermediary or overall asset levels of Oppenheimer funds held for or by clients of the financial intermediary, the willingness of the financial intermediary to allow the Distributor to provide educational and training support for the financial intermediary's sales personnel relating to the Oppenheimer funds, the availability of the Oppenheimer funds on the financial intermediary's sales system, as well as the overall quality of the services provided by the financial intermediary. The Sub-Adviser and Distributor have adopted guidelines for assessing and implementing each prospective revenue sharing arrangement. To the extent that financial intermediaries receiving distribution-related payments from the Sub-Adviser or Distributor sell more shares of the Oppenheimer funds or retain more shares of the funds in their client accounts, the Sub-Adviser and Distributor benefit from the incremental management and other fees they receive with respect to those assets.

Payments may be made by the Transfer Agent or Sub-Transfer Agent to financial intermediaries to compensate or reimburse them for services provided, such as sub-transfer agency services for shareholders or retirement plan participants, omnibus accounting or sub-accounting, participation in networking arrangements, operational and recordkeeping and other administrative services. These payments are made out of the Transfer Agent’s or Sub-Transfer Agent’s own resources and/or assets, including from the revenues or profits derived from the transfer agency fees the Transfer Agent receives from the Fund. Financial intermediaries that may receive these fees for providing services may include, but are not limited to, retirement plan administrators, qualified tuition program sponsors, banks and trust companies, broker-dealers, and insurance companies that offer variable annuity or variable life insurance products, and other financial intermediaries. These fees may be used by the financial intermediary to offset or reduce fees that would otherwise be paid directly to them by certain account holders, such as retirement plans.

Payments made by the Sub-Adviser, and/or the Distributor, the Transfer Agent and Sub-Transfer Agent are not reflected in the tables in the “Fees and Expenses of the Fund” section of this prospectus because they are not paid by the Fund.

The Statement of Additional Information contains more information about revenue sharing payments made by the Sub-Adviser and/or Distributor and operational and recordkeeping, networking and sub-accounting payments made by the Transfer Agent and/or Sub-Transfer Agent. Your broker-dealer or other financial intermediary may charge you fees or commissions in addition to those disclosed in this prospectus. You should ask your financial intermediary for details about any such payments it receives from the Sub-Adviser, Distributor, Transfer Agent or Sub-Transfer Agent, or any other fees or expenses it charges.

23. Except with respect to Oppenheimer Cash Reserves, Oppenheimer Institutional Money Market Fund, Oppenheimer Money Market Fund, and Oppenheimer Ultra-Short Duration Fund, the first four sections through the last set of bullet points in the section titled “Payments to Financial Intermediaries” in the SAI are deleted and replaced by the following:

Financial intermediaries may receive various forms of compensation or reimbursement in the form of 12b-1 distribution and service plan payments as described in the preceding section. They may also receive payments or concessions from the Distributor, derived from sales charges paid by the financial intermediary's clients, also described in this SAI. In addition, the Sub-Adviser, the Transfer Agent, Sub-Transfer Agent and the Distributor may make payments to broker-dealers, other financial intermediaries or to service providers for some or all of the following services: distribution, promotional and marketing support, operational and recordkeeping, sub-accounting, networking and administrative services.

The types of financial intermediaries that may receive compensation for providing such services include, but are not limited to, broker-dealers, financial advisors, registered investment advisers, sponsors of fund “supermarkets,” sponsors of fee-based advisory or wrap fee-based programs, sponsors of college and retirement savings programs, banks, trust companies, retirement plan or qualified tuition program administrators, third party administrators, financial intermediaries that offer products that hold Fund shares, and insurance companies that offer variable annuity or variable life insurance products.

Types of payments to financial intermediaries may include, without limitation, all or portions of the following:

1. Payments made by the Fund, or by an investor buying or selling shares of the Fund, including:

· an initial front-end sales charge, all or a portion of which is payable by the Distributor to financial intermediaries (see the "More About Your Account" section in the Prospectus); and

· ongoing asset-based distribution and/or service fees (described in the section "Distribution and Service Arrangements - Distribution and Service (12b-1) Plans" above).

2. Payments made by the Transfer Agent or Sub-Transfer Agent to financial intermediaries, to compensate or reimburse them for services provided, such as sub-transfer agency services for shareholders or retirement plan participants, omnibus accounting or sub-accounting, participation in networking arrangements, operational and recordkeeping and other administrative services. These payments are made out of the Transfer Agent’s or Sub-Transfer Agent’s own resources and/or assets, including from the revenues or profits derived from the transfer agency fees the Transfer Agent receives from the Fund.

3. In addition, the Sub-Adviser or Distributor may, at their discretion, make the following types of payments from their own resources and/or assets, including from the revenues or profits derived from the advisory fees the Sub-Adviser receives from the Manager for sub-advisory services on behalf of the Fund. Payments are made based on the guidelines established by the Sub-Adviser and Distributor, subject to applicable law. These payments are often referred to as "revenue sharing" payments, and may include, but are not limited to:

· compensation for marketing or promotional support, support provided in offering shares in the Fund or other Oppenheimer funds through certain trading platforms and programs, and other promotional or marketing services; and

· other compensation, to the extent the payment is not prohibited by law or by any self-regulatory agency, such as FINRA.

4. The Distributor may also provide, accept and/or cover the cost of certain non-cash compensation items, subject to internal policies and applicable FINRA regulations.

Although an intermediary that sells Fund shares may also act as a broker or dealer in connection with the purchase or sale of portfolio securities by the Fund or other Oppenheimer funds, neither the Manager, the Sub-Adviser nor any advisory affiliate considers a financial intermediary's sales of shares of the Fund or other Oppenheimer funds when choosing brokers or dealers to effect portfolio transactions for the Fund or other Oppenheimer funds.

Revenue sharing payments can pay for distribution-related or asset retention items including, without limitation:

· charges for setting up access for the Fund or other Oppenheimer funds on particular trading systems;

· marketing, promotional support and program support, such as expenses related to including the Oppenheimer funds in retirement plans, college savings plans, fee-based advisory or wrap fee-based programs, fund "supermarkets," bank or trust company products or insurance companies' variable annuity or variable life insurance products;

· placement on the dealer's list of offered funds;

· providing representatives of the Distributor with access to a financial intermediary's sales meetings, sales representatives and management representatives; or

· firm support, which may include, but is not limited to, business planning assistance, “due diligence” or training meetings, advertising, or educating a financial intermediary's sales personnel about the Oppenheimer funds.

24. With respect to Oppenheimer Cash Reserves, Oppenheimer Institutional Money Market Fund, Oppenheimer Money Market Fund, and Oppenheimer Ultra-Short Duration Fund, the first four sections through the last set of bullet points in the section titled “Payments to Financial Intermediaries” in the SAI are deleted and replaced by the following:

Financial intermediaries may receive various forms of compensation or reimbursement in the form of 12b-1 distribution and service plan payments as described in the preceding section. They may also receive payments or concessions from the Distributor, derived from sales charges paid by the financial intermediary's clients, also described in this SAI. In addition, the Sub-Adviser, the Transfer Agent, Sub-Transfer Agent and the Distributor may make payments to broker-dealers, other financial intermediaries or to service providers for some or all of the following services: distribution, promotional and marketing support, operational and recordkeeping, sub-accounting, networking and administrative services.

The types of financial intermediaries that may receive compensation for providing such services include, but are not limited to, broker-dealers, financial advisors, registered investment advisers, sponsors of fund “supermarkets,” sponsors of fee-based advisory or wrap fee-based programs, sponsors of college and retirement savings programs, banks, trust companies, retirement plan or qualified tuition program administrators, third party administrators, financial intermediaries that offer products that hold Fund shares, and insurance companies that offer variable annuity or variable life insurance products.

Types of payments to financial intermediaries may include, without limitation, all or portions of the following:

1. Payments made by the Fund, or by an investor buying or selling shares of the Fund, including:

· ongoing asset-based distribution and/or service fees (described in the section "Distribution and Service Arrangements - Distribution and Service (12b-1) Plans" above).

2. Payments made by the Transfer Agent or Sub-Transfer Agent to financial intermediaries, to compensate or reimburse them for services provided, such as sub-transfer agency services for shareholders or retirement plan participants, omnibus accounting or sub-accounting, participation in networking arrangements, operational and recordkeeping and other administrative services. These payments are made out of the Transfer Agent’s or Sub-Transfer Agent’s own resources and/or assets, including from the revenues or profits derived from the transfer agency fees the Transfer Agent receives from the Fund.

3. In addition, the Sub-Adviser or Distributor may, at their discretion, make the following types of payments from their own resources and/or assets, including from the revenues or profits derived from the advisory fees the Sub-Adviser receives from the Manager for sub-advisory services on behalf of the Fund. Payments are made based on the guidelines established by the Sub-Adviser and Distributor, subject to applicable law. These payments are often referred to as "revenue sharing" payments, and may include, but are not limited to:

· compensation for marketing or promotional support, support provided in offering shares in the Fund or other Oppenheimer funds through certain trading platforms and programs, and other promotional or marketing services; and

· other compensation, to the extent the payment is not prohibited by law or by any self-regulatory agency, such as FINRA.

4. The Distributor may also provide, accept and/or cover the cost of certain non-cash compensation items, subject to internal policies and applicable FINRA regulations.

Although an intermediary that sells Fund shares may also act as a broker or dealer in connection with the purchase or sale of portfolio securities by the Fund or other Oppenheimer funds, neither the Manager, the Sub-Adviser nor any advisory affiliate considers a financial intermediary's sales of shares of the Fund or other Oppenheimer funds when choosing brokers or dealers to effect portfolio transactions for the Fund or other Oppenheimer funds.

Revenue sharing payments can pay for distribution-related or asset retention items including, without limitation:

· charges for setting up access for the Fund or other Oppenheimer funds on particular trading systems;

· marketing, promotional support and program support, such as expenses related to including the Oppenheimer funds in retirement plans, college savings plans, fee-based advisory or wrap fee-based programs, fund "supermarkets," bank or trust company products or insurance companies' variable annuity or variable life insurance products;

· placement on the dealer's list of offered funds;

· providing representatives of the Distributor with access to a financial intermediary's sales meetings, sales representatives and management representatives; or

· firm support, which may include, but is not limited to, business planning assistance, “due diligence” or training meetings, advertising, or educating a financial intermediary's sales personnel about the Oppenheimer funds.

Effective January 25, 2016 for each Fund offering Class I shares:

25. Except with respect to Oppenheimer SteelPath Panoramic Fund, the first paragraph in the section titled “Purchase and Sale of Fund Shares” in the Prospectus is deleted and replaced by the following:

Purchase and Sale of Fund Shares. You can buy most classes of Fund shares with a minimum initial investment of $1,000. Traditional and Roth IRA, Asset Builder Plan, Automatic Exchange Plan and government allotment plan accounts may be opened with a minimum initial investment of $500. For wrap fee-based programs, salary reduction plans and other retirement plans and accounts, there is no minimum initial investment. Once your account is open, subsequent purchases may be made in any amount. For Class I shares, the minimum initial investment is $1 million per account. The Class I share minimum initial investment will be waived for retirement plan service provider platforms.

26. The section titled “What Classes of Shares Does the Fund Offer?—Class I Shares” in the Prospectus is deleted and replaced by the following:

Class I Shares. Class I shares are only offered to eligible institutional investors that make a minimum initial investment of $1 million or more and to retirement plan service providers platforms. See “About Class I Shares” below.

27. The second sentence in the section titled “What is the Minimum Investment?” in the Prospectus is deleted and replaced by the following:

For Class I shares the minimum initial investment is $1 million per account.

28. The second paragraph in the section titled “Minimum Account Balance” in the Prospectus is deleted and replaced by the following:

The minimum account balance for Class I shares is $250,000. If a Class I account balance falls below $250,000, the account may be redeemed or converted into a Class Y share account. This minimum balance policy does not apply to Class I share accounts for which the minimum initial investment is waived.

29. The first bullet in the section titled “About Class I Shares” in the Prospectus is deleted and replaced by the following:

· make a minimum initial investment of $1 million or more per account (waived for retirement plan service provider platforms);

30. The last paragraph in the section titled “Retirement Plans” in the Prospectus is deleted and replaced by the following:

Class I shares are only available to plans that make an initial investment of $1 million or more (per account) or to retirement plan service provider platforms.

31. The first bullet in the section titled “Class I Share Availability” in the SAI is deleted and replaced by the following:

· make a minimum initial investment of $1 million or more per account (waived for retirement plan service provider platforms);

32. The first paragraph in the section titled “Involuntary Conversion of Class I Shares” in the SAI is deleted and replaced by the following:

Involuntary Conversion of Class I Shares. If a Class I share account balance falls below $250,000, the investor will be notified that the account is below the required minimum balance. If the account remains below $250,000 for more than six consecutive months after such notification, the account may be involuntarily redeemed or converted into a Class Y share account. This policy does not apply to accounts for which the minimum initial investment is waived.

33. The first paragraph in the section titled “Minimum Account Balance” in the SAI is deleted and replaced by the following:

Minimum Account Balance. Except for Class I shares, the minimum account balance is $500. The minimum account balance for Class I shares is $250,000, excluding accounts for which the minimum initial investment was waived.

34. The second paragraph in the section titled “Involuntary Redemptions” in the SAI is deleted and replaced by the following:

If a Class I account falls below the $250,000 minimum balance, the account may be redeemed or converted into a Class Y share account. This policy does not apply to Class I share accounts for which the minimum initial investment is waived.

Effective September 28, 2016:

35. All references in the Prospectus and SAI to “Oppenheimer Cash Reserves,” “Oppenheimer Institutional Money Market Fund,” and “Oppenheimer Money Market Fund” are deleted and replaced by references to “Oppenheimer Government Cash Reserves,” “Oppenheimer Institutional Government Money Market Fund” and “Oppenheimer Government Money Market Fund,” respectively.

November 20, 2015 PS0000.130