Schlumberger Limited (SLB) IRANNOTICEDisclosure regarding Iran Threat Reduction and Syria Human Rights Act

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

26 April 2023

Re: Notice of Disclosure Filed in Exchange Act Annual Report Under Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Exchange Act

Ladies and Gentlemen:

Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Securities Exchange Act of 1934, as amended, notice is hereby provided that Schlumberger Limited (Schlumberger N.V.) has made disclosure pursuant to such provisions in its Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2023, which was filed with the U.S. Securities and Exchange Commission on April 26, 2023. Such disclosure appears on page 20 of the Quarterly Report on Form 10-Q and is incorporated by reference herein.