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.
By 1938 Monahans replaced Barstow as the county seat and two years later the town could boast of having nearly 4,000 residents. By 1950 it had increased to 6,300 and peaked in 1960 with 8,567. (See Monahans in the 1950s) It floated just below that figure for decades, but the 2000 census reported a drop to 6,821.