1、 UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington,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 31,2021 OR TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d)OF THE SECURITIES EXCHANGE ACT OF1934 For
2、the transition period from to Commission File Number 001-33503 BLUEKNIGHT ENERGY PARTNERS,L.P.(Exact name of registrant as specified in its charter)Delaware(State or other jurisdiction of incorporation ororganization)20-8536826(IRS EmployerIdentification No.)6060 American Plaza,Suite 600Tulsa,Oklaho
3、ma 74135(Address of principal executive offices,zip code)Registrants telephone number,including area code:(918)237-4000(Former name,former address and former fiscal year,if changed since last report)Securities Registered Pursuant to Section 12(b)of the Act:Title of each classTradingSymbolsName of ea
4、ch exchange on which registeredCommon Units representing limited partner interestsBKEPNasdaq Global MarketSeries A Preferred Units representing limited partnerinterestsBKEPPNasdaq Global Market Securities Registered Pursuant to Section 12(g)of the Act:None Indicate by check mark if the registrant is
5、 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 fil
6、ed by Section 13 or 15(d)of theSecurities Exchange Act of 1934 during the preceding 12 months(or for such shorter period that the registrant was required tofile 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