SLB Schlumberger Ltd

On September 18, 2019, Schlumberger Limited (“Schlumberger”) issued a press release announcing that Schlumberger Holdings Corporation, an indirect wholly-owned subsidiary of Schlumberger (the “Issuer”), has commenced a cash tender offer (the “Tender Offer”) for (a) any and all of the Issuer’s outstanding 3.000% Notes due 2020 (the “2020 Notes”) and (b) any and all of the Issuer’s outstanding 3.625% Notes due 2022 (the “2022 Notes,” and, together with the 2020 Notes, the “Notes”). The complete terms and conditions of the Tender Offer are set forth in an offer to purchase and notice of guaranteed delivery (collectively, the “Tender Offer Documents”) that will be sent to registered holders of the Notes and be posted online at www.dfking.com/slb. The Tender Offer will expire at 5:00 p.m., New York City time, on September 24, 2019, unless extended or earlier terminated (the “Expiration Time”).

The applicable consideration for each $1,000 principal amount of Notes validly tendered and not validly withdrawn and accepted for purchase pursuant to the Tender Offer will be determined in the manner described in the Tender Offer Documents by reference to the applicable fixed spread for such Notes plus the applicable yield based on the bid-side price of the applicable U.S. Treasury Reference Security at 2:00 p.m., New York City time, on September 24, 2019, unless extended.

Holders will also receive accrued and unpaid interest on the Notes validly tendered and accepted for purchase from the applicable last interest payment date up to, but not including, the date the Issuer makes payment for such Notes, which date is anticipated to be September 27, 2019 (the “Settlement Date”).

A copy of the press release is included with this Form 8-K as Exhibit 99 and incorporated into this Item 7.01 by reference. In accordance with General Instruction B.2. of Form 8-K, the information in this Item 7.01 (including Exhibit 99) will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), nor will it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as expressly set forth by specific reference in such a filing.

Cautionary Statement Regarding Forward-Looking Statements

This Form 8-K and Exhibit 99 attached hereto contain “forward-looking statements” within the meaning of the federal securities laws — that is, statements about the future, not about past events. Such statements often contain words such as “expect,” “may,” “believe,” “plan,” “estimate,” “intend,” “anticipate,” “should,” “could,” “will,” “see,” “likely,” and other similar words. Forward-looking statements address matters that are, to varying degrees, uncertain, such as statements regarding the terms and timing for completion of the Tender Offer, including the acceptance for purchase of any Notes validly tendered and the expected Expiration Time and Settlement Date thereof, and the consideration of the Tender Offer. Schlumberger and the Issuer cannot give any assurance that such statements will prove correct. These statements are subject to, among other things, the risks and uncertainties detailed in Schlumberger’s most recent Forms 10-K, 10-Q, and 8-K filed with or furnished to the Securities and Exchange Commission. Actual outcomes may vary materially from those reflected in Schlumberger’s forward-looking

statements. The forward-looking statements speak only as of the date of this Form 8-K, and Schlumberger disclaims any intention or obligation to update publicly or revise such statements, whether as a result of new information, future events or otherwise.