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( Mark One ) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 Form 10 - K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-4601 Schlumberger N.V. ( Schlumberger Limited ) ( Exact name of registrant as specified in its charter ) Curaçao ( State or other jurisdiction of incorporation or organization ) 42 rue Saint - Dominique Paris , France 5599 San Felipe , 17th Floor Houston , Texas , United States of America 62 Buckingham Gate , London , United Kingdom 52-0684746 ( IRS Employer Identification No. ) 0 75007 Trading Symbol ( s ) SLB Securities registered pursuant to Section 12 ( g ) of the Act : None 77056 Parkstraat 83 , The Hague , The Netherlands ( Addresses of principal executive offices ) Registrant's telephone number in the United States , including area code , is : ( 713 ) 513-2000 Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Stock , par value $ 0.01 per share SW1E 6AJ 2514 JG ( Zip Codes ) Name of each exchange on which registered New York Stock Exchange Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . YES NO Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . YES NO Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . YES NO Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files . ) YES NO Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or emerging growth company . See the definitions of " large accelerated filer " , " accelerated filer " , " smaller reporting company " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Large accelerated filer Accelerated filer Non - accelerated filer Smaller reporting company 0 Emerging growth company If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . YES NO As of June 30 , 2020 , the aggregate market value of the common stock of the registrant held by non - affiliates of the registrant was approximately $ 25.50 billion . As of December 31 , 2020 , the number of shares of common stock outstanding was 1,392,325,960 . DOCUMENTS INCORPORATED BY REFERENCE Certain information required to be furnished pursuant to Part III of this Form 10 - K is set forth in , and is incorporated by reference from , Schlumberger's definitive proxy statement for its 2021 Annual General Meeting of Stockholders , to be filed by Schlumberger with the Securities and Exchange Commission ( " SEC " ) pursuant to Regulation 14A within 120 days after December 31 , 2020 ( the " 2021 Proxy Statement " ) .