Annual report
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Table of Contents 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 ( Exact name of registrant as specified in its charter ) Crestwood Equity Partners LP Crestwood Midstream Partners LP 811 Main Street ( Address of principal executive offices ) Crestwood Equity Partners LP Crestwood Equity Partners LP Crestwood Midstream Partners LP to Securities registered pursuant to Section 12 ( b ) of the Act : Crestwood Midstream Partners LP Commission file number 001-34664 001-35377 Suite 3400 Crestwood Midstream Partners LP Securities registered pursuant to Section 12 ( g ) of the Act : Crestwood Equity Partners LP Crestwood Midstream Partners LP Crestwood Midstream Partners LP Title of each class ( 832 ) 519-2200 ( Registrant's telephone number , including area code ) Houston Common Units representing limited partnership interests Preferred Units representing limited partner interests None None None Yes Yes State or other jurisdiction of incorporation or organization Delaware Delaware Indicate by check mark if registrant is a well - known seasoned issuer , as defined by Rule 405 of the Securities Act . Crestwood Equity Partners LP Yes Yes Yes Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15 ( d ) of the Act . Crestwood Equity Partners LP Yes No No 0 Texas No No Trading Symbol CEQP CEQP - P None No 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 . Crestwood Equity Partners LP ( I.R.S. Employer Identification No. ) ☐ 77002 ( Zip code ) ☐ 43-1918951 20-1647837 Name of each exchange on which registered New York Stock Exchange New York Stock Exchange None