EXHIBIT 10.23 LETTER AMENDMENT NO.1 TO THAT CERTAIN NOTE PURCHASE AGREEMENTNote Purchase Agreement • August 14th, 1998 • Western Gas Resources Inc • Natural gas transmission
ARTICLE I.Credit Agreement • August 14th, 1998 • Western Gas Resources Inc • Natural gas transmission • Texas
B. PARAGRAPH 6C(5). MERGER AND SALE OF ASSETS. Clause (v) of paragraph 6C(5) is hereby deleted in its entirety and replaced, in lieu thereof, with the following: "(v) the Company or any Subsidiary may sell, lease, transfer or otherwise dispose of any...Master Shelf Agreement • August 14th, 1998 • Western Gas Resources Inc • Natural gas transmission
