Item 7.01 Regulation FD Disclosure.

On June 22, 2009, The Williams Companies, Inc. ("Williams") announced that it has signed a participation and exploration agreement to develop natural gas wells in the Marcellus Shale with Rex Energy Corporation. A copy of the press release announcing this is furnished herewith as Exhibit 99.1.

The information furnished is not deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, is not subject to the liabilities of that section and is not deemed incorporated by reference in any filing under the Securities Act of 1933, as amended.

Item 9.01 Financial Statements and Exhibits.

(a) None

(b) None

(c) None

(d) Exhibits

Exhibit 99.1 Press Release dated June 22, 2009.

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