McCoy Global Inc (OTCPK:MCCRF) provides various equipment, parts and services to the oil and gas industry. In particular the company designs, manufactures and installs sensors for harsh environments, control and monitoring systems, wellbore construction equipment, parts and consumables, customized engineering solutions, and rents out equipment. Competitors are among others Perma-Pipe International Holdings (PPIH) (also a microcap) and unlisted Premiere Inc.
According to the company its products are used predominantly during the well construction phase for both land and offshore wells during both oil and gas exploration and development. I think most