1 EXHIBIT 10 FIRST AMENDMENT TO LOAN AGREEMENT This First Amendment to Loan Agreement (the "First Amendment"), dated as of April 15, 1997, is made and entered into by and between Dawson Geophysical Company, a Texas corporation (the "Borrower"), and...Loan Agreement • August 8th, 1997 • Dawson Geophysical Co • Oil & gas field exploration services • Texas
