M/D Totco

We lead the energy industry in data and data-derived solutions that enable you to drill smarter, complete better, produce more and reduce emissions.

NOV employee working in trailer

The Martin-Decker Corporation was created in 1928 when Elmer Decker and Frosty Martin bought out the Loomis Oilwell Control Company. Over the years, the company introduced innovations such as the first successful commercial weight indicator. Totco (the Technical Oil Tool Corporation) was founded in 1929 in order to manufacture a mechanical drift recorder, and the name Totco soon became an industry term for the recorder. Varco acquired both Martin-Decker and Totco in 1990 to form M/D Totco™. This combined expertise allowed M/D Totco to fulfill the industry's instrumentation and control system needs.

Today, M/D Totco is the global leader in instrumentation and edge-to-cloud digital solutions. Our mission is Your Data – Made Easy™ and our products are ruggedized and fit for purpose for the industries they serve. Our integrated software applications provide a single version of the truth, enabling remote field locations and the office to share insights in real-time, supported by 24x7 global customer support. With solutions across the well lifecycle, and applications accessible with single sign-on, it’s never been easier to monitor your operations, reduce risks and improve efficiency.