Notice of Commitment Increase

Exhibit 4.1

November 13, 2006

JPMorgan Chase Bank, N.A.
1111 Fannin Street, 10th Floor
Houston, Texas, 77002

Ladies and Gentlemen:

     The undersigned, Weatherford International Ltd. (“WIL”), refers to the Second Amended and Restated Credit Agreement dated as of May 2, 2006 (as amended, restated, supplemented or otherwise modified from time to time, the “Credit Agreement”) among WIL, Weatherford Liquidity Management Hungary Limited Liability Company, Weatherford International, Inc., JPMorgan Chase Bank, N.A., as Administrative Agent, and the lenders party thereto. Capitalized terms used but not otherwise defined herein shall have the meanings specified therefor in the Credit Agreement.

     WIL hereby notifies you, pursuant to Section 2.15 of the Credit Agreement, that (a) it hereby requests that the aggregate amount of the Commitments under the Credit Agreement be increased and (b) the CI Lenders agree to provide Commitments under the Credit Agreement. Set forth below is the information relating to such proposed Commitment Increase as required by Section 2.15(b) of the Credit Agreement:

	(i)		the proposed effective date of such increase of aggregate amount of the Lenders’ Commitments is November 14, 2006, and such date is not the last day of the Interest Period applicable to each outstanding Eurocurrency Loan (by their execution of this Notice, the Lenders waive the five (5) Business Day notice period set forth in Section 2.15(b)(i) of the Credit Agreement);
	(ii)		the aggregate amount of the requested increase of the Commitments is $750,000,000;
	(iii)		the CI Lenders that have agreed with WIL to provide their respective Commitments are [not applicable];
	(iv)		the Lenders that have agreed with WIL to increase their respective Commitments are the Lenders identified on Annex I attached hereto with an asterisk; and
	(v)		set forth on Annex I attached hereto is the amount of the respective Commitments of all Lenders (including, without limitation, the CI Lenders) as of effective date of such Commitment Increase and after giving effect thereto.

     Delivery of an executed counterpart of this Notice of Commitment Increase by telecopier shall be effective as delivery of an original executed counterpart hereof.

Very truly yours,

WEATHERFORD INTERNATIONAL LTD.

By: /s/ Andrew P. Becnel
Name: Andrew P. Becnel
Title: Senior Vice President

Approved and Consented to by:

JPMORGAN CHASE BANK, N.A.,
as Administrative Agent and Issuing Bank

By:/s/ Robert W. Traband
Name: Robert W. Traband
Title: Vice President

CI LENDERS:

[Not applicable]

LENDERS INCREASING COMMITMENTS:

[Signatures begin on following page]

LENDERS:

JPMORGAN CHASE BANK, N.A.

By:   /s/Robert W. Traband
Name: Robert W. Traband
Title:   Vice President

Notice Information:

1111 Fannin, 10^th Floor
Houston, Texas 77002
Telephone:    ###-###-####
Telecopy:    ###-###-####

With a copy to:

600 Travis, 20^th Floor
Houston, Texas 77002
Telephone:    (713 ###-###-####
Telecopy:    (713 ###-###-####

CALYON NEW YORK BRANCH

By:   /s/ Dennis E. Petito
Name: Dennis E. Petito
Title:   Managing Director

By:    /s/ Tom Byargeon
Name: Tom Byargeon
Title:    Managing Director

Notice Information:

1301 Avenue of the Americas
New York, New York 10019
Attention:    Gener David
Telephone:    (212)  ###-###-####
Telecopier:    (917)  ###-###-####

THE ROYAL BANK OF SCOTLAND plc

By:    /s/ Matthew J. Main
Name: Matthew J. Main
Title:    Managing Director

Notice Information:

600 Travis St., Suite 6500
Houston, Texas 77002
Attention:    Stuart Gibson
Telephone:    (713)  ###-###-####
Telecopy:    (713)  ###-###-####

WELLS FARGO BANK, N.A.

By:    /s/ C. David Allman
Name: C. David Allman
Title:    Vice President

Notice Information:

1000 Louisiana, 9th Floor
Mail Code: T5002-090
Houston, Texas 77002
Telephone:    (713)  ###-###-####
Telecopy: c ***@***

ABN AMRO BANK N.V.

By:    /s/ Lizabeth Lary
Name: Lizabeth Lary
Title: Vice President

By:    /s/ Todd D. Vaubel
Name: Todd D. Vaubel
Title:    Assistant Vice President

		Notice Information:
		4400 Post Oak Parkway, Suite 1500
		Houston, Texas 77027
		Attention:    Liz Lary
		Telephone    (832)  ###-###-####
		Telecopy:    (832)  ###-###-####
		With a copy to:
		540 West Madison Street, 26th Floor
		Chicago, Illinois 60661-2591
		Attention:    Kenneth Keck
		Telephone:    (312)  ###-###-####
		Telecopy:    (312)  ###-###-####

BANK OF AMERICA, N.A.

By:    /s/ Zewditu Menelik
Name: Zewditu Menelik
Title:    Vice President

Notice Information:

901 Main Street
Dallas, Texas 75202
Telephone: (214)  ###-###-####
Telcopier: (214)  ###-###-####
Attention: Stephen Keilers / Thelma L. Johnson

THE BANK OF TOKYO-MITSUBISHI
UFJ, LTD., HOUSTON AGENCY

By:    /s/ K. Glasscock
Name:    K. Glasscock
Title:    Vice President & Manager

By:  /s/ J. Fort
Name: J. Fort
Title: Vice President

Notice Information:

1100 Louisiana, Suite 2800
Houston, Texas 77002
Attention:    Jay Fort
Telephone:    (713)  ###-###-####
Telecopy:    (713)  ###-###-####

BAYERISCHE HYPO- UND

VEREINSBANK AG, NEW YORK BRANCH

By:    /s/ William W. Hunter
Name:    William W. Hunter
Title:    Director

By:    /s/ Kimberly D. Sousa
Name: Kimberly D. Sousa
Title:    Director

Notice Information:

150 East 42nd Street
New York, New York 10017
Attention:   Tina Chung
Telephone:    (212)  ###-###-####
Telecopier:   (212)  ###-###-####

DEUTSCHE BANK AG NEW YORK BRANCH

By:  /s/ Ming K. Chu
Name: Ming K. Chu
Title:   Vice President

By:  /s/ Vincent Wong
Name: Vincent Wong
Title:    Vice President

		Notice Information:
		60 Wall Street
		New York, New York 10005
		Attention:    Rainer Meier, Vice President
		Telephone:    (212)  ###-###-####
		Telecopy:    (212)  ###-###-####

		DNB NOR BANK ASA
		By: /s/ Alfred C. Jones III
		Name: Alfred C. Jones III
		Title: Senior Vice President
		By: /s/ Barbara Gronquist
		Name: Barbara Gronquist
		Title: Senior Vice President
		Notice Information:
		200 Park Avenue, 31st Floor New York, New York 10166-0396
		Telephone:		(212) 681-3823
		Telecopy:		(212) 681-3900

		MERRILL LYNCH CAPITAL MARKETS BANK LIMITED
		By:/s/ Lee Halla
		Name: Lee Halla
		Title: Authorised Signatory
		By:/s/ Nicolas Lowmass
		Name: Nicolas Lowmass
		Title:    Authorized Signatory

		Notice Information:
		Treasury Building,
		Lower Grand Canal Street,
		Dublin 2,
		Ireland
		Attention:		Stuart Biggar
		Telephone:		+ 353 1 ###-###-####
		Telecopy:		+ 44 207 106 6302
		E-mail:		***@***

		MORGAN STANLEY BANK
		By:/s/ Daniel Twenge
		Name: Daniel Twenge
		Title: Authorized Signatory Morgan Stanley Bank

		Notice Information:
		1633 Broadway, 25th Floor New York, New York 10019
		Telephone:		(212 ###-###-####
		Telecopier:		(212 ###-###-####

		NORDEA BANK NORGE ASA
		By:/s/ Kristine Erdal
		Name: Kristine Erdal
		Title: Senior Relationship Manager
		By:/s/ Irina Bjaroy
		Name: Irina Bjaroy
		Title: Relationship Manager

		Notice Information:
		Postboks 1166 Sentrum
		0107 Oslo
		Norway
		Attention: Shipping department — Kristine Erdal / Irina Bjarøy
		Telephone: +47 22 48 56 68 / +47 22 48 55 38
		Telecopy: +47 22 48 66 68

		STANDARD CHARTERED BANK
		By: /s/ Michael Gouvion
		Name: Michael Gouvion
		Title: Director
		By: /s/ Andrew Y. Ng
		Name: Andrew Y. Ng
		Title: Director Standard Chartered Bank NY
		Notice Information:
		790 East Colorado Blvd, Suite 808
		Pasadena, California 91101
		Attention: John Robinson
		Telephone: (626)  ###-###-####
		Telecopier: (626)  ###-###-####

		SUNTRUST BANK
		By:/s/ Sean Roche
		Name: Sean Roche
		Title: Vice President

		Notice Information:
		303 Peachtree Street, 10th Floor
		Atlanta, Georgia 30308
		Telephone: (404 ###-###-####
		Telecopy: (404 ###-###-####

		UBS LOAN FINANCE
		By: /s/ Richard L. Tavrow
		Name: Richard L. Tavrow
		Title: Director Banking Products Services, US
		By: /s/ Irja R. Otsa
		Name: Irja R. Otsa
		Title: Associate Director Banking Products           Services, US
		Notice Information:
		677 Washington Blvd. Stamford, Connecticut 06901
		Attention: Letica Fox-Thomas
		Telephone: (203)  ###-###-####
		Telecopier: (203)  ###-###-####

Annex I to
Notice of Commitment Increase

COMMITMENTS

(after giving effect to the applicable Commitment Increase)

Bank		Allocation
JPMorgan Chase Bank, N.A.*			151,000,000.00
Wells Fargo Bank, N.A.*			126,000,000.00
Calyon New York Branch*			126,000,000.00
The Royal Bank of Scotland plc*			126,000,000.00
UBS Loan Finance*			126,000,000.00
Bank of America, N.A.*			85,000,000.00
Deutsche Bank AG New York Branch*			85,000,000.00
ABN AMRO Bank N.V.*			85,000,000.00
The Bank of Tokyo-Mitsubishi UFJ, Ltd., Houston Agency*			85,000,000.00
SunTrust Bank*			72,000,000.00
Morgan Stanley Bank*			72,000,000.00
Nordea Bank Norge ASA*			72,000,000.00
Wachovia Bank, National Association			53,000,000.00
DnB NOR Bank ASA*			50,000,000.00
Bayerische Hypo-Und Vereinsbank AG, New York Branch*			50,000,000.00
Merrill Lynch Capital Markets Bank Limited*			50,000,000.00
Standard Chartered Bank*			50,000,000.00
The Bank of Nova Scotia			36,000,000.00
TOTAL		$	1,500,000,000.00