Page 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 ( Mark One ) 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 1-31447 1-3187 1-13265 Registrant CenterPoint Energy , Inc. CenterPoint Energy , Inc. CenterPoint Energy Houston Electric , LLC CenterPoint Energy Houston Electric , LLC CenterPoint Energy Resources Corp. Form 10 - K Registrant , State or Other Jurisdiction of Incorporation or Organization Address of Principal Executive Offices , Zip Code and Telephone Number CenterPoint Energy , Inc. ( a Texas corporation ) 1111 Louisiana Houston , ( 713 ) Houston , ( 713 ) Texas 207-1111 CenterPoint Energy Houston Electric , LLC ( a Texas limited liability company ) 1111 Louisiana Houston , ( 713 ) Texas 207-1111 CenterPoint Energy Resources Corp. ( a Delaware corporation ) 1111 Louisiana Texas 207-1111 77002 9.15 % First Mortgage Bonds due 2021 6.95 % General Mortgage Bonds due 2033 6.625 % Senior Notes due 2037 77002 77002 Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Stock , $ 0.01 par value Depositary shares , each representing a 1 / 20th interest in a share of 7.00 % Series B Mandatory Convertible Preferred Stock , $ 0.01 par value Securities registered pursuant to Section 12 ( g ) of the Act : None Trading symbol ( s ) . CNP CNP / PB n / a n / a n / a I.R.S. Employer Identification No. 74-0694415 22-3865106 76-0511406 Name of each exchange on which registered New York Stock Exchange Chicago Stock Exchange New York Stock Exchange New York Stock Exchange New York Stock Exchange New York Stock Exchange