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) ~~July~~September 920, 2007 (~~July~~September 919, 2007)

GLOBALSANTAFE CORPORATION

(Exact name of registrant as specified in charter)

Cayman Islands	1-14634	98-0108989
(State or other jurisdiction of	(Commission	(I.R.S. Employer
(State or other jurisdiction of incorporation or organization)	(Commission file number)	(I.R.S. Employer Identification No.)
incorporation or organization)	file number)	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 7 8.01. ~~Regulation~~Other FDEvents. ~~Disclosure~~

~~During~~Our ~~the~~news ~~first~~release ~~half~~dated ofSeptember 20, ~~each calendar month~~2007, ~~GlobalSantaFe~~concerning ~~Corporation~~early ~~publishes~~termination aof ~~list containing information about~~ the ~~status~~U.S. ofantitrust ~~each~~waiting ~~rig~~period in ~~its~~connection ~~oil~~with ~~and~~our ~~gas~~proposed ~~drilling~~combination ~~rig~~with ~~fleet.~~Transocean ~~The list includes each rig’s rated water depth or drilling depth, design, location, and contract status, including information regarding the dayrate being earned by the rig~~Inc. ~~This month’s list is as of July 9~~, ~~2007.~~attached ~~The list is included~~ as Exhibit 99.1 to this ~~Current~~report, ~~Report on Form 8-K and~~ is incorporated ~~herein~~ 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		~~GlobalSantaFe~~Press ~~Fleet~~Release ~~Status~~Regarding asEarly Termination of ~~July~~U.S. 9,Antitrust ~~2007~~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.

Index to Exhibits

Exhibit Number		Description
ExhibitNumber		Description
99.1		~~GlobalSantaFe~~Press ~~Fleet~~Release ~~Status~~Regarding asEarly Termination of ~~July~~U.S. 9,Antitrust ~~2007.~~Waiting Period

GLOBALSANTAFE CORPORATION

~~GLOBALSANTAFE CORPORATION~~

Date: July 9, 2007

/s/ James L. McCulloch

Date: September 20, 2007

/s/ Alexander A. Krezel

James L. McCulloch Senior Vice President and General Counsel

Alexander A. Krezel Vice President, Secretary and Associate General Counsel

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