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CUSIP 74839G 10 6




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THE HOLDER OF THIS SECURITY ACKNOWLEDGES FOR THE BENEFIT OF QUICKSILVER GAS SERVICES LP THAT THIS
SECURITY MAY NOT BE SOLD, OFFERED, RESOLD, PLEDGED OR OTHERWISE TRANSFERRED IF SUCH TRANSFER WOULD
(A) VIOLATE THE THEN APPLICABLE FEDERAL OR STATE SECURITIES LAWS OR RULES AND REGULATIONS OF THE
SECURITIES AND EXCHANGE COMMISSION, ANY STATE SECURITIES COMMISSION OR ANY OTHER GOVERNMENTAL
AUTHORITY WITH JURISDICTION OVER SUCH TRANSFER, (B) TERMINATE THE EXISTENCE OR QUALIFICATION OF
QUICKSILVER GAS SERVICES LP UNDER THE LAWS OF THE STATE OF DELAWARE, OR (C) CAUSE QUICKSILVER GAS
SERVICES LP TO BE TREATED AS AN ASSOCIATION TAXABLE AS A CORPORATION OR OTHERWISE TO BE TAXED AS AN
ENTITY FOR FEDERAL INCOME TAX PURPOSES (TO THE EXTENT NOT ALREADY SO TREATED OR TAXED). QUICKSILVER
GAS SERVICES GP LLC, THE GENERAL PARTNER OF QUICKSILVER GAS SERVICES LP, MAY IMPOSE ADDITIONAL
RESTRICTIONS ON THE TRANSFER OF THIS SECURITY IF IT RECEIVES AN OPINION OF COUNSEL THAT SUCH
RESTRICTIONS ARE NECESSARY TO AVOID A SIGNIFICANT RISK OF QUICKSILVER GAS SERVICES LP BECOMING
TAXABLE AS A CORPORATION OR OTHERWISE BECOMING TAXABLE AS AN ENTITY FOR FEDERAL INCOME TAX
PURPOSES. THE RESTRICTIONS SET FORTH ABOVE SHALL NOT PRECLUDE THE SETTLEMENT OF ANY TRANSACTIONS
INVOLVING THIS SECURITY ENTERED INTO THROUGH THE FACILITIES OF ANY NATIONAL SECURITIES EXCHANGE ON
WHICH THIS SECURITY IS LISTED OR ADMITTED TO TRADING. ABBREVIATIONS The following abbreviations,
when used in the inscription on the face of this Certificate, shall be construed as follows
according to applicable laws or regulations: TEN COM  as tenants in common UNIF GIFT/TRANSFERS
MIN ACT TEN TEN ENT  as tenants by the entireties  as joint tenants with right of (Cust)
(Minor) JT TEN survivorship and not as tenants under Uniform Gifts/Transfers to CD Minors in common
Act (State) Additional abbreviations, though not in the above list, may also be used. ASSIGNMENT
OF COMMON UNITS OF QUICKSILVER GAS SERVICES LP FOR VALUE RECEIVED, hereby assigns, conveys, sells
and transfers unto PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE (Please
print or typewrite name and address of Assignee) Common Units representing limited partner
interests evidenced by this Certificate, subject to the Partnership Agreement, and does hereby
irrevocably constitute and appoint as its attorney-in-fact with full power of substitution to
transfer the same on the books of Quicksilver Gas Services LP. Date: NOTE: The signature to any
endorsement hereon must correspond with the name as written upon the face of this Certificate in
every SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS,
SAVINGS AND LOAN ASSOCIATIONS particular, without alteration, enlargement, or change. AND CREDIT
UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C.
RULE 17Ad-15. (Signature) SIGNATURE(S) GUARANTEED (Signature) No transfer of the Common Units
evidenced hereby will be registered on the books of the Partnership, unless the Certificate
evidencing the Common Units to be transferred is surrendered for registration or transfer.