As filed with the Securities and Exchange Commission on September 20, 2007

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported) September 20, 2007 (September 19, 2007)

GLOBALSANTAFE CORPORATION

(Exact name of registrant as specified in charter)

Cayman Islands

1-14634

98-0108989

(State or other jurisdiction of

incorporation or organization)

(Commission file number)

(I.R.S. Employer

Identification No.)


15375 Memorial Drive, Houston, Texas		77079-4101
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (281) 925-6000

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

x	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01. Other Events.

Our news release dated September 20, 2007, concerning early termination of the U.S. antitrust waiting period in connection with our proposed combination with Transocean Inc., attached as Exhibit 99.1 to this report, is incorporated by reference into this Item 8.01.

Item 9.01. Financial Statements and Exhibits

The exhibit to this report is as follows:


Exhibit No.		Description

99.1		Press Release Regarding Early Termination of U.S. Antitrust Waiting Period

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


	GLOBALSANTAFE CORPORATION

Date: September 20, 2007	By	/s/ Alexander A. Krezel
		Alexander A. Krezel Vice President, Secretary and Associate General Counsel

Index to Exhibits


Exhibit Number		Description
99.1		Press Release Regarding Early Termination of U.S. Antitrust Waiting Period

GLOBALSANTAFE CORP 8-K