Darkhat speakers are known in Mongolia by the name "Oirat". But Darkhat and standard Halh are closely related. All or close to all Oirat can read standard Mongolian, even if they may pronounce words differently from standard Halh Mongolian. Many can read both the traditional vertical script, as well as the Cyrillic script promoted during the period of Soviet influence. Apparently the literacy effort in standard Mongolian has been very successfulI and the Darkhat are bilingual enough to read and comprehend literature in Halh Mongolian. The predominant religion of this group is unknown.