FORM 6-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16
of the Securities Exchange Act of 1934

For the month of October 2005

Commission File Number: 1-3788 N.V. KONINKLIJKE NEDERLANDSCHE PETROLEUM MAATSCHAPPIJ (Exact name of registrant as specified in its charter) ROYAL DUTCH PETROLEUM COMPANY (Translation of registrar's name into English) The Netherlands (Jurisdiction of incorporation or organisation) 30, Carel van Bylandtlaan, 2596 HR The Hague The Netherlands Tel No: (011 31 70) 377 9111) (Address of principal executive officers) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: Form 20-F [X] Form 40-F _______ Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ...... Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ...... Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.. Yes _______ No [X] If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- _______

Commission File Number: 1-32575

ROYAL DUTCH SHELL PLC

(Exact name of registrant as specified in its charter)

The Netherlands

(Jurisdiction of incorporation or organisation)

30, Carel van Bylandtlaan, 2596 HR The Hague

The Netherlands

Tel No: (011 31 70) 377 9111)

(Address of principal executive officers)

Commission File Number: 1-3788

N.V. KONINKLIJKE NEDERLANDSCHE PETROLEUM MAATSCHAPPIJ

(Exact name of registrant as specified in its charter)

ROYAL DUTCH PETROLEUM COMPANY

(Translation of registrar's name into English)

The Netherlands

(Jurisdiction of incorporation or organisation)

30, Carel van Bylandtlaan, 2596 HR The Hague

The Netherlands

Tel No: (011 31 70) 377 9111)

(Address of principal executive officers)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F [X] Form 40-F _______

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ......

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ......

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934..

Yes _______ No [X]

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- _______

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F [X] Form 40-F _______

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ......

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ......

Yes _______ No [X]

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- _______

N.V.Royal KoninklijkeDutch NederlandscheShell Petroleum Maatschappijplc

Joint Announcement by Royal Dutch Shell plc and N.V. Koninklijke Nederlandsche Petroleum Maatschappij (‘Royal Dutch Petroleum Company’)

~~Notice~~Royal Dutch Shell plc retains PricewaterhouseCoopers as its sole audit firm Early this year it was decided that Royal Dutch Shell plc would move to ~~Registered~~a ~~Shareholders~~single audit firm. The decision making process has now been completed and upon the recommendation of the Audit Committee, the Board of Directors of Royal Dutch ~~Petroleum~~Shell ~~Company~~plc has today announced that it has decided to retain PricewaterhouseCoopers as the sole audit firm for Royal Dutch Shell plc.

~~October~~Going 14forward PricewaterhouseCoopers will perform the audit and audit related services of the worldwide operations of Royal Dutch Shell plc, ~~2005~~provide the audit opinion on the financial statements and review the quarterly results.

~~Dear~~The ~~registered~~engagement ~~shareholder:~~of PricewaterhouseCoopers as the sole auditor will take effect on November 7, 2005. The current joint audit engagement with both KPMG and PricewaterhouseCoopers ends as of that date.

AsKPMG ofwill ~~October~~be ~~17,~~resigning ~~2005,~~as ~~the~~sole ~~Transfer~~auditor ~~Agent,~~of ~~Registrar and Dividend Paying Agent for the~~ Royal Dutch Petroleum Company ~~(Royal~~and ~~Dutch)~~it ~~shares~~is onintended ~~the~~that ~~New~~PricewaterhouseCoopers ~~York Registry~~ will bebecome ~~The~~the ~~Bank~~auditor of ~~New~~Royal ~~York.~~Dutch ~~The~~Petroleum ~~contact~~Company. ~~telephone and address of The Bank of New York is:~~

~~Securities~~The ~~ServicingThe~~transition ~~Bank~~process ofhas ~~New~~started ~~YorkDepositary~~and ~~Receipts101~~the ~~Barclay~~2005 ~~Street~~Annual ~~—22nd~~Report/20-F ~~FloorNew~~of ~~York,~~Royal NYDutch ~~10286Telephone:~~Shell ~~1-888-269-2377~~plc will be audited solely by PricewaterhouseCoopers.

AsCFO ~~you~~Peter ~~may~~Voser besaid ~~aware,~~“The onchoice ~~September~~of ~~20,~~a ~~2005,~~single ~~Royal~~audit ~~Dutch~~firm ~~Shell~~for ~~plc~~the ~~(Royal~~company ~~Dutch~~is ~~Shell)~~another ~~announced~~step ~~that~~towards itsimplification ~~intends to implement an internal restructuring that would include a merger between Royal Dutch~~ and ~~its~~standardisation ~~subsidiary,~~of ~~Shell~~our ~~Petroleum N~~processes.V. AsWe ~~part~~are ofpleased ~~the~~to ~~merger,~~continue aswith aPricewaterhouseCoopers ~~shareholder~~as inour ~~Royal~~sole ~~Dutch~~auditor. ~~you~~We ~~would~~also belook ~~entitled~~forward to ~~receive~~working ~~cash~~with ~~for~~KPMG ~~your~~as ~~shares.~~a ~~The~~provider ~~final terms~~ of ~~the~~non-audit ~~restructuring,~~services. ~~including~~We ~~the~~would ~~price~~like to beexpress ~~paid~~our inappreciation ~~exchange~~ for ~~each~~the ~~Royal~~excellent ~~Dutch~~professional ~~share~~service ~~held~~we byhave ~~minority~~received ~~shareholders,~~from ~~will~~both beKPMG ~~determined~~ and ~~announced~~PricewaterhouseCoopers inover the ~~fourth quarter of 2005~~years”.

The Board of Royal Dutch has engaged ABN AMRO Bank N.V. as its financial advisor. ABN AMRO will assist the Board in its evaluation of the fairness to the remaining Royal Dutch public shareholders, from a financial point of view, of the cash compensation they will receive in the merger. The restructuring is expected to be completed by year-end, at which time you would be entitled to receive a cash payment in exchange for your Royal Dutch shares.Media

You should note that, in connection with the unification transaction in which Royal Dutch Shell became the parent of Royal Dutch, we have applied to have the Royal Dutch shares delisted from the New York Stock Exchange (NYSE) and the NYSE has halted trading pending the release of further information regarding the merger, including the compensation to be paid to the remaining Royal Dutch public shareholders. The NYSE has stated that it would consider the appropriateness of reopening trading in Royal Dutch shares if this information becomes available prior to the approval by the Securities Exchange Commission of the delisting application. Under Dutch law, once the Royal Dutch shares are formally delisted from the NYSE, transfers of the registered ownership of shares in registered form may only be made through a Dutch notarial deed process. This means that after the delisting, should you wish to sell your shares in advance of receiving the cash payment described above, you and the buyer would need to use such a process. This would require the production of identification and supporting documents and increase the time of settlement. In addition, you will be responsible for the significant additional costs involved with satisfying these requirements. Additional information regarding the procedures to transfer shares through this method, as well as copies of the relevant forms that will be required, will be available from The Bank of New York upon request after the delisting is effective. An announcement of the delisting will be made once it is effective.

UK/USA/International:
Stuart Bruseth	+44 20 7934 6238
Andy Corrigan	+44 20 7934 5963
Bianca Ruakere	+44 20 7934 4323

~~Shareholders~~Institutional should also note that the Dutch notarial deed requirements will not apply to transactions of beneficial ownership that may occur between persons who hold their shares in "street name" through a bank or broker that holds shares through the facilities of the Depository Trust Company. This is because these transactions do not involve any change in the registered ownership of the shares. However, Royal Dutch can give no assurance that an over-the-counter market will develop for the Royal Dutch shares or that price quotes will be available.Investors

Sincerely,

UK:
David Lawrence	+44 20 793 3856
Gerard Paulides	+44 20 7934 6287
Europe:
Bart van der Steenstraten	+31 70 377 3996
USA:
Harold Hatchett	+1 212 218 3112

~~Royal~~The ~~Dutch~~Hague, ~~Petroleum~~October ~~Company~~27, 2005

~~SIGNATURES~~ This announcement contains forward-looking statements that are subject to risk factors. It is believed that the expectations reflected in these statements are reasonable, but they may be affected by a variety of variables which could cause actual results or trends to differ materially, including, but not limited to: the failure of the Board of Royal Dutch to approve the restructuring; the failure to obtain any necessary consents and approvals in necessary in order to consummate the restructuring; the costs related to the restructuring; the failure of the restructuring to achieve the expected benefits; and other factors affecting the Shell Group's businesses generally, including, but not limited to, price fluctuations in crude oil and natural gas, changes in demand for the Shell Group’s products, currency fluctuations, drilling and production results, reserve estimates, loss of market, industry competition, environmental risks, physical risks, risks associated with the identification of suitable potential acquisition properties and targets and successful negotiation and consummation of such transactions, the risk of doing business in developing countries and countries subject to international sanctions, legislative, fiscal and regulatory developments including potential litigation and regulatory effects arising from recategorisation of reserves, economic and financial market conditions in various countries and regions, political risks, project delay or advancement, approvals and cost estimates. Each forward-looking statement speaks only as of the date of the particular statement. Please refer to the Annual Report on Form 20-F/A of Royal Dutch and Shell Transport for the year ending December 31, 2004 for a description of certain important factors, risks and uncertainties that may affect the businesses of the Shell Group.

~~Pursuant~~This toReport ~~the~~on ~~requirements~~Form of6-K ~~the~~is ~~Securities~~incorporated ~~Exchange act of 1934, the registrant has duly caused this report to be signed on its behalf~~ by ~~the~~ ~~undersigned,~~reference ~~thereunto duly authorized.~~ into:

~~ROYAL~~a) ~~DUTCH~~the ~~PETROLEUM~~Registration ~~COMPANY~~Statement ~~(Registrant)~~on ~~/s/~~Form J.F-3 ~~van~~of ~~der~~Royal ~~Veer~~Dutch ~~Name:~~Shell Jplc and Shell International Finance B.V. ~~van~~(Registration ~~der~~Numbers ~~Veer~~333-126726 ~~Title:~~and ~~President/Managing~~333-126726-01); ~~Director~~andb) ~~/s/~~the ~~M.C.M.~~Registration ~~Brandjes~~Statement ~~Name:~~on ~~M.C.M.~~Form ~~Brandjes~~S-8 ~~Title:~~of ~~Company~~Royal ~~Secretary~~Dutch ~~Date:~~Shell 17plc ~~October~~(Registration ~~2005~~Number 333-126715).

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