One of the unique features of the IGES standard is that it was the first ANSI standard to be documented using itself. Since Version 4.0, all of the technical illustrations for the printed version of the standard have been generated from IGES files.
By 1940, the population of Monahans had grown to 3,944. The Texas Electric Service Company's Permian Basin Generating Station began in 1948 and later developed into a larger plant. Because of the oilfield expansion in Ward County, Monahans continued to grow to a population of 6,311 in 1950 and 8,567 in 1960.
The Permian Basin, home to Monahans and Midland/Odessa MSA, is 250 miles (400 km) wide and 300 miles (480 km) long-Monahans is The Center of the Permian Basin. The basin was formed during the Permian Period, the final portion of the Paleozoic Era. At the time, it was an ocean filled with abundant aquatic life.