8-K

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of report (Date of earliest event reported): November 16, 2004

WESTERN GAS RESOURCES, INC.
(Exact Name of Registrant as Specified in Charter)

Delaware	1-10389	84-1127613
(State of Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)
1099 18th Street, Suite 1200, Denver, Colorado		80202
(Address of Principal Executive Offices)		(Zip Code)

(303) 452-5603
(Registrant's telephone number, including area code)

N.A.
(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01. Other Events.

        On November 16, 2004, Western Gas Resources, Inc. issued a press release announcing the purchase of gathering and processing assets in Eastern Green River Basin, Wyoming.

        The press release is attached as an exhibit to this Form 8-K and incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

(a)

Exhibits.

        A list of exhibits filed herewith is contained on the Exhibit Index which immediately precedes such exhibits and is incorporated herein by reference.

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SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	WESTERN GAS RESOURCES, INC. (Registrant)
Date: November 16, 2004	By:	/s/  WILLIAM J. KRYSIAK Name: William J. Krysiak Title: Executive Vice President and Chief Financial Officer

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EXHIBIT INDEX

Exhibit Number	Description
99.1	Press release, dated November 16, 2004, announcing the purchase of gathering and processing assets in Eastern Green River Basin.

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Item 8.01. Other Events.
Item 9.01. Financial Statements and Exhibits.

SIGNATURES
EXHIBIT INDEX

EX-99.1

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Exhibit 99.1

WESTERN GAS RESOURCES, INC.
ANNOUNCES PURCHASE OF GATHERING AND PROCESSING ASSETS
IN EASTERN GREEN RIVER BASIN

DENVER, November 16, 2004. Western Gas Resources, Inc. ("Western") (NYSE:WGR) today announced that one of its wholly-owned subsidiaries, Mountain Gas Resources, Inc., has signed a purchase and sale agreement to purchase certain natural gas gathering and processing assets in the eastern Green River Basin of Wyoming from Duke Energy Field Services, LP, Overland Trail Transmission, LLC and Duke Energy Field Services Marketing, LP for approximately $28 million before adjustments. Closing is expected to occur in early 2005.

        The purchase price includes the Patrick Draw processing plant with 150 MMcfd of capacity and approximately 140 miles of related gathering systems. Patrick Draw is currently processing approximately 35 MMcfd of gas from several large producers in the area. Patrick Draw will be integrated into Western's existing systems in the area, which includes the Red Desert processing plant and several gathering systems acquired in early 2003. Western also has a drilling program underway in the area on its leasehold of approximately 30,000 net acres.

        Peter Dea, President and Chief Executive Officer of Western, stated, "These assets are a tremendous fit with our existing gathering, processing and leasehold assets in the Wamsutter, Red Desert and Washakie Basin areas of the eastern Green River Basin. The systems will add immediate cash flow and growth opportunities to our fully integrated operations in this emerging core area. This acquisition furthers our strategy to be a premier producer, processor and gatherer of unconventional natural gas in the Rocky Mountain region."

        Company Description.    Western is an independent natural gas explorer, producer, gatherer, processor, transporter and energy marketer providing a broad range of services to its customers from the wellhead to the sales delivery point. The Company's producing properties are located primarily in Wyoming, including the developing Powder River Basin coal bed methane play, where Western is a leading acreage holder and producer, and the rapidly growing Pinedale Anticline. The Company also designs, constructs, owns and operates natural gas gathering, processing and treating facilities in major gas-producing basins in the Rocky Mountain, Mid-Continent and West Texas regions of the United States. For additional Company information, visit Western's web site at www.westerngas.com.

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 regarding acquisitions and future growth potential. Although the Company believes that its expectations are based on reasonable assumptions, Western can give no assurances that its projections are accurate. These statements are subject to a number of risks and uncertainties, which may cause actual results to differ materially. These risks and uncertainties include, among other things, unknown factors discovered in due diligence, changes in natural gas and NGL prices, government regulation or action, geological risk, environmental risk, weather, rig availability, transportation capacity, the success of third-party producers drilling near its systems and other factors as discussed in the Company's 10-K and 10-Q Reports and other filings with the Securities and Exchange Commission.

Investor Contact: Ron Wirth, Director of Investor Relations
(800) 933-5603 or (303) 252-6090
Email: rwirth@westerngas.com

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WESTERN GAS RESOURCES, INC. ANNOUNCES PURCHASE OF GATHERING AND PROCESSING ASSETS IN EASTERN GREEN RIVER BASIN