DRILLER'S BUDDY

Building Construction and Repair

Owner

TDE PETROLEUM DATA SOLUTIONS, INC.

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DRILLERS GPS

Computer and Scientific

Owner

TDE PETROLEUM DATA SOLUTIONS, INC.

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SMART SENSING

Building Construction and Repair

Owner

TDE PETROLEUM DATA SOLUTIONS, INC.

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DRILLING BENCHMARK CLUB

Computer and Scientific

Owner

TDE PETROLEUM DATA SOLUTIONS, INC.

May 10, 2016