Henry Lee McFarlain

Probe Technology Services, Inc. designs, manufactures, and sells measurement tools and systems used in formation evaluation, and well integrity assessment and productivity determination for the energy industry worldwide. It offers cased hole tools, such as corrosion logging, cement integrity logging, thru casing evaluation logging, gamma ray and CCL logging, memory logging, surface acquisition systems, and auxiliary equipment and accessories; and open hole tools, including nuclear, resistivity, acoustic, and borehole geometry logging. The company was founded in 1994 and is headquartered in Houston, TX.