EXHIBIT 10.17 MODIFICATION TO CONSULTING AGREEMENT Agreement by and between Cardinal Resources, Inc. ("Cardinal") and Cornerstone Natural Gas, Inc. ("Company") dated this 15th day of February 1995. WHEREAS, Company entered into that certain Consulting...Consulting Agreement • February 27th, 1996 • Cornerstone Natural Gas Inc • Natural gas transmission
RECITALS:Assignment of Joint Venture Interest • February 27th, 1996 • Cornerstone Natural Gas Inc • Natural gas transmission
ARTICLE ITerm Loan Agreement • November 13th, 1995 • Cornerstone Natural Gas Inc • Natural gas transmission • Oklahoma
RECITALS:Assignment and Assumption Agreement • February 27th, 1996 • Cornerstone Natural Gas Inc • Natural gas transmission
EXHIBIT 10.20 FIRST AMENDMENT TO LOAN AGREEMENT THIS FIRST AMENDMENT TO LOAN AGREEMENT, dated as of January 31, 1996 ("Agreement"), is entered into among CORNERSTONE NATURAL GAS, INC. (formerly Endevco, Inc.), a Delaware corporation ("Cornerstone"),...Loan Agreement • February 27th, 1996 • Cornerstone Natural Gas Inc • Natural gas transmission
EXHIBIT 10.10 ASSIGNMENT OF PARTNERSHIP INTEREST THIS ASSIGNMENT OF PARTNERSHIP INTEREST dated as of June 2, 1993 (herein called the "Assignment") is by CORNERSTONE NATURAL GAS COMPANY, a Delaware corporation (herein called "Assignor"), in favor of...Assignment of Partnership Interest • February 27th, 1996 • Cornerstone Natural Gas Inc • Natural gas transmission • Texas
