PTEN

Patterson Uti Energy Inc

A provider of drilling, completion, and drilling-product services to oil and gas operators, mostly in the U.S. and parts of Latin America. Through its Ulterra business, it also makes PDC drill bits sold in over 30 countries. Born in 2001 from a "merger of equals" between Patterson Drilling (founded in West Texas in 1978) and UTI Energy, the name simply joins the two. Fun fact: the Ulterra brand name blends "ultra" with "terra," Latin for earth—meaning "beyond the earth."