This book is really in excellent shape. There are no pen markings or highlights in the book at all. The covers look very good. There might be minor lines or blemishes on the cover but nothing is very obvious. There is a small indention on a couple of pages but these are minor issues again. Overall the book is in excellent shape. This is the sixth edition of A Primer of Oilwell Drilling, A Basic Text of Oil & Gas Drilling. By Ron Baker. Published by Petroleum Extension Service of the University of Texas at Austin Continuing Education in cooperation with International Association of Drilling Contractors in Houston Texas.
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