Exhibit
10.10


LINE
OF CREDIT PROMISSORY NOTE














$250,000
            Effective
      Date: May 28, 2009








FOR VALUE
RECEIVED, Coil Tubing Technology, Inc., a Nevada Corporation, ("Borrower")
promises to pay to the order of Charles Wayne Tynon ("Lender"), the principal
sum of Two Hundred Fifty Thousand Dollars ($250,000 ), or so much thereof as may
be disbursed to, or for the benefit of the Borrower by Lender in Lender's sole
and absolute discretion.  It is the intent of the Borrower and Lender
hereunder to create a line of credit agreement between Borrower and Lender
whereby Borrower may borrow up to $250,000 from Lender; provided, however, that
Lender has no obligation to lend Borrower any amounts hereunder and the decision
to lend such money lies in the sole and complete discretion of the
Lender.





INTEREST
& PRINCIPAL: The unpaid principal of this Line of Credit Promissory Note
(this “Note”) shall bear
simple interest at the rate of six percent (6%) per annum.  Interest
shall be calculated based on the principal balance as may be adjusted from time
to time to reflect additional advances made hereunder.  Interest on
the unpaid balance of this Note shall accrue monthly but shall not be due and
payable until such time as when the principal balance of this Note becomes due
and payable. The principal balance of this Note shall be due and payable on June
1, 2011.  There shall be no penalty for early repayment of all or any
part of the principal or interest hereon.





SECURITY:
This Note shall be secured by one (1) Security Agreement of even date herewith
("Security Agreement"), granting Lender a security interest in the Collateral
(as defined in the Security Agreement).  In the event of a default by
the Borrower under this Note or under the Security Agreement, Lender shall be
entitled to all remedies as set forth in the Security Agreement.





DEFAULT:
The Borrower shall be in default of this Note on the occurrence of any of the
following events: (i) the Borrower shall fail to meet its obligation to make the
required principal or interest payments hereunder; (ii) the Borrower shall be
dissolved or liquidated; (iii) the Borrower shall make an assignment for the
benefit of creditors or shall be unable to, or shall admit in writing its
inability to pay its debts as they become due; (iv) the Borrower shall commence
any case, proceeding, or other action under any existing or future law of any
jurisdiction relating to bankruptcy, insolvency, reorganization or relief of
debtors, or any such action shall be commenced against the undersigned (which is
not stayed within sixty (60) days); (v) the Borrower shall suffer a receiver to
be appointed for it or for any of its property or shall suffer a garnishment,
attachment, levy or execution.





REMEDIES:
Upon default of this Note, Lender may declare the entire amount due and owing
hereunder to be immediately due and payable. Lender may also use all remedies in
law and in equity to enforce and collect the amount owed under this
Note.





CONVERSION
RIGHTS: At any time after June 1, 2010, Lender shall have the right, but not the
obligation, to convert any amount due under this Note into shares of
Borrower’s
common stock at the rate of $.0033333 per share.  Accordingly, by way
of example, if two hundred and fifty thousand shares dollars ($250,000) is due
anytime after June 1, 2010, Lender shall have the right to convert the amount
due to him for up to 75 million shares of Borrower’s common
stock.  Such shares will be subject to any and all restriction as may
be legally necessary at the time of such conversion (if
any).  Further, the conversion rate shall be adjusted accordingly for
any stock issuances, stock splits, stock dividends or any other adjustments in
the number of issued and outstanding shares of the Borrower.





Borrower
hereby waives demand, presentment, notice of dishonor, diligence in collecting,
grace and notice of protest.








BORROWER:/s/
      Jerry SwinfordCoil
      Tubing Technology, Inc. a Nevada
      CorporationBy:
      Jerry Swinford,
President





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