AMENDED EXHIBIT "A" To The GAS PURCHASE CONTRACT As Of: October 1, 1994 Between CASCADE NATURAL GAS CORPORATION ("BUYER") and IGI RESOURCES, INC. ("SELLER")

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Exhibit 10.21.3

AMENDED
EXHIBIT "A"

To The

GAS PURCHASE CONTRACT

As Of: October 1, 1994

Between

CASCADE NATURAL GAS CORPORATION ("BUYER")

and

IGI RESOURCES, INC. ("SELLER")

Effective Date of this Exhibit "A": October 1, 2003

Ending Date of this Exhibit "A": March 31, 2004

DELIVERY POINT		As defined in Section 1.01(g) of the Contract noted above

MAXIMUM DAILY CONTRACT QUANTITY(MMBtu)		7,446

DELIVERY POINT SELLING PRICE		1/

1.: The Delivery Point Selling Price shall be equal to four dollars and sixty eight cents [*]U.S. dry) per MMBtu at AECO-C Hub plus the actual cost of firm NOVA re-delivery service and firm ANG receipt and re-delivery service plus any applicable allowance for fuel-in-kind associated with such services.

[*] = Confidential Information

		"BUYER" CASCADE NATURAL GAS CORPORATION

		By:		/s/ King Xxxxx
		Name:		King Xxxxx
		Title:		Vice President, Gas Supply


		"SELLER" IGI RESOURCES, INC.

		By:		/s/ Xxxxx Xxxxxxx
		Name:		Xxxxx Xxxxxxx
		Title:		President