In the early 1960s, Brewster-Bartle, an onshore drilling company, filed . In 1964, Don McMahon acquired Brewster-Bartle from its bank creditors and formed Diamond M Drilling Company, named after Diamond. .
In 1989, Diamond's predecessor bought 6 drilling rigs from the predecessor of Kaneb Management. Some of Kaneb's employees continued to work for Diamond after the transaction and then sued Diamond for personal inj.
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[pdf] This is the list of the largest public listed companies in the Oil & Gas Drilling industry from the United Kingdom by market capitalization with links to their reference stock. 1. Odfjell Drilling Ltd 2. Bowleven plc 3. TomCo Energy plc 4. Anglo African Oil & Gas plc
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