EXHIBIT 10.15 THIS WARRANT AND THE SHARES OF COMMON STOCK ISSUABLE UPON EXERCISE OF THIS WARRANT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS. THIS WARRANT AND THE COMMON STOCK ISSUABLE UPON...New Century Energy Corp. • August 5th, 2005 • Crude petroleum & natural gas • Texas
