<SEC-DOCUMENT>0001564590-20-029706-index.html : 20200618 <SEC-HEADER>0001564590-20-029706.hdr.sgml : 20200618 <ACCEPTANCE-DATETIME>20200618071248 ACCESSION NUMBER: 0001564590-20-029706 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 3 CONFORMED PERIOD OF REPORT: 20200616 ITEM INFORMATION: Changes in Registrant's Certifying Accountant ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20200618 DATE AS OF CHANGE: 20200618 FILER: COMPANY DATA: COMPANY CONFORMED NAME: TETRA TECHNOLOGIES INC CENTRAL INDEX KEY: 0000844965 STANDARD INDUSTRIAL CLASSIFICATION: CRUDE PETROLEUM & NATURAL GAS [1311] IRS NUMBER: 742148293 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-13455 FILM NUMBER: 20971224 BUSINESS ADDRESS: STREET 1: 24955 INTERSTATE 45 NORTH CITY: THE WOODLANDS STATE: TX ZIP: 77380 BUSINESS PHONE: 2813671983 MAIL ADDRESS: STREET 1: 24955 INTERSTATE 45 NORTH CITY: THE WOODLANDS STATE: TX ZIP: 77380 </SEC-HEADER> <DOCUMENT> <TYPE>8-K <SEQUENCE>1 <FILENAME>tti-8k_20200616.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: tti-8k_20200616.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-16.1 <SEQUENCE>2 <FILENAME>tti-ex161_6.htm <DESCRIPTION>EX-16.1 <TEXT> Document 2 - file: tti-ex161_6.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>g1avdg2s3en1000001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: g1avdg2s3en1000001.jpg
</DOCUMENT> </SEC-DOCUMENT>