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EXHIBIT 3.9

ARTICLES OF INCORPORATION

TO THE DEPARTMENT OF STATE
COMMONWEALTH OF PENNSYLVANIA

In compliance with the requirements of the "BUSINESS
CORPORATION LAW," approved the 5th day of May, A.D. 1933, P.L. 364, as amended,
the undersigned, being of full age and desiring that they may be incorporated as
a business corporation, do hereby certify:

FIRST. The name of the corporation is Kwik-Fill Corporation.

SECOND. The location and post office address of its initial
registered office in this Commonwealth is c/o CT Corporation System, Oliver
Building, Mellon Square, Pittsburgh, Pennsylvania 15222.

THIRD. The corporation is organized under the provisions of
the Business Corporation Law, as amended, and shall have unlimited power to
engage in and to do any lawful act concerning any or all lawful business for
which corporations may be incorporated under the Business Corporation Law.

FOURTH. The term of its existence is perpetual.

FIFTH. The aggregate number of shares which the Corporation
shall have the authority to issue is 100 shares, all of which shall be of one
class only (Common Stock), and shall be of the par value of $1.00 each,
amounting in the aggregate to $100.

SIXTH. The name and post office address of the incorporator
and the number of shares of Common Stock subscribed to by him are:

Number
Name Address of Shares

Robert D. Pischer Oliver Building1
Pittsburgh, Pennsylvania 15222

William R. Gavin Oliver Building1
Pittsburgh, Pennsylvania 15222

Signed and sealed this 1st day of November, 1972.

/s/ Robert D. Pischer
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/s/ William R. Gavin
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Filed in the Department of State on the 3rd day of November
1972.

/s/
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Secretary of the Commonwealth