EXHIBIT 10.21


 


THIRD AMENDED AND RESTATED INTERCOMPANY
DEMAND PROMISSORY NOTE


 


	$6,000,000	Dated:  June 30, 2015


 


FOR VALUE RECEIVED, the undersigned,
Central Energy Partners LP, a Delaware limited partnership (“Borrower”), HEREBY PROMISES TO PAY to the
order of Central Energy GP LLC, a Delaware limited liability company (“Lender”), the principal amount of $6,000,000
or, if less, the aggregate principal amount of all advances heretofore and hereafter made by Lender to Borrower as evidenced by
the endorsement of such Advances on Schedule A hereto or in the books and records of Borrower (the “Advances”),
which is deemed a part of this Promissory Note, commencing with the quarter ended March 31, 2017 (the “Termination Date”)
in twelve (12) substantially equal consecutive quarterly installments on the last day of June, September, December and March in
each year commencing on January 1, 2017 and ending on March 31, 2020; provided, that the last such installment shall be
in the amount necessary to repay in full the outstanding principal amount hereof, together with interest on the principal amount
hereof from time to time outstanding from the date hereof until such principal amount is paid in full.


 


Interest shall accumulate and be calculated
daily on the basis of a 360-day year at a rate per annum, compounded quarterly, at the rate of ten percent (10%) per annum. Interest
shall accumulate until payment of such accumulated and unpaid interest becomes due commencing on the first day immediately after
the Termination Date and payable on each of the dates principal payments are due as set forth above, with the last payment including
that amount of interest due on the remaining outstanding principal amount at March 31, 2020.


 


Both principal and interest are payable
in lawful money of the United States of America to Lender at 4809 Cole Avenue, Suite 108, Dallas, Texas 75205, or such other address
as Lender shall notify Borrower, in same day funds. All Advances made by Lender to Borrower, and all payments made on account of
the principal amount hereof, shall be recorded by Lender on Schedule A hereto which is part of this Amended and Restated
Intercompany Demand Promissory Note (“Promissory Note”) for all purposes. The failure to show any such Advances
or any error in showing such Advances shall not affect the obligations of Borrower hereunder.


 


Borrower may, upon at least three (3) Business
Days’ notice to Lender stating the proposed date and principal amount of the prepayment, and if such notice is given Lender
shall, prepay the Promissory Note in whole or in part together with accrued interest to the date of such prepayment on the amount
prepaid.


 


No amendment or waiver of any provision
of this Promissory Note, nor consent to any departure by Borrower herefrom, shall in any event be effective unless the same shall
be in writing and signed by Lender, and then such waiver or consent shall be effective only in the specific instance and for the
specific purpose for which given.


 


Borrower hereby waives (to the extent permitted
by applicable laws) presentment, demand, protest and notice of any kind. No failure on Lender’s part to exercise, and no
delay in exercising, any right hereunder shall operate as a waiver of such right; nor shall any single or partial exercise of any
right hereunder preclude any other or further exercise thereof or the exercise of any other right. The remedies herein provided
are cumulative and not exclusive of any remedies provided by law.


 




    	 



    	 



    




 


This Promissory Note shall be binding
upon Borrower and its successors and assigns, and the terms and provisions of this Promissory Note shall inure to the benefit of
Lender and its respective successors and assigns, including subsequent holders hereof.


 


This Promissory Note amends and restates
in its entirety that certain Intercompany Demand Promissory Note by and between Borrower and Lender dated March 15, 2014, and supersedes
such promissory note in all respects.


 


THIS PROMISSORY NOTE AND THE RIGHTS
AND OBLIGATIONS OF THE PARTIES UNDER THIS PROMISSORY NOTE SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH,
THE LAW OF THE STATE OF TEXAS WITHOUT GIVING EFFECT TO CONFLICTS OF LAW PRINCIPLES THAT WOULD REQUIRE THE APPLICATION OF THE LAWS
OF ANOTHER JURISDICTION.


 


The terms and provisions of this Promissory
Note are severable, and if any term or provision shall be determined to be superseded, illegal, invalid or otherwise unenforceable
in whole or in part pursuant to applicable law, such determination shall not in any manner impair or otherwise affect the validity,
legality or enforceability of that term or provision in any other jurisdiction or any of the remaining terms and provisions of
this Promissory Note in any jurisdiction.


 


This Promissory Note represents the entire
agreement between the parties regarding the subject matter hereof and may not be contradicted by evidence of prior, contemporaneous
or subsequent oral agreements of the parties. There are no unwritten oral agreements between the parties.


 


	 	CENTRAL ENERGY PARTNERS LP	 
	 	 	 
	 	By:  	Central Energy GP LLC, its General Partner	 
	 	 	 	 
	 	 	 	 
	 	By:	/s/ John L. Denman, Jr.	 
	 	 	John L. Denman, Jr.,	 
	 	 	Chief Executive Officer and President