XHSCO-FM is a radio station in Salina Cruz, Oaxaca, Mexico.

[2] In the early 1980s, PEMEX began exploring the idea of constructing a radio station in the Istmo region, home to many oil facilities, in order to connect the region and the petroleum industry.

PEMEX programmed 96.3 FM with music for 10 hours a day, but it could not keep the station on air.

Longer and longer periods of time off air endangered the station's permit, and in 1987, the Instituto Mexicano de la Radio began operating XHGAS-FM on PEMEX's behalf.

IMER changed the station's format to one of news and information, for a region relatively isolated from political and economic centers.