OID value: 1.3.6.1.4.1.311.60.2.1.3
OID description:
subject:jurisdictionOfIncorporationCountryName
ASN.1 - X520countryName as specified in RFC 3280
URL for further info: https://www.mozilla.org/projects/security/certs/ev/guidelines-draft-20.doc
See also the OID Repository website reference for 1.3.6.1.4.1.311.60.2.1.3