ORION OFFICE REIT INC revenue for the last year amounted to 3.31 B MXN, the most of which — 3.30 B MXN — came from its highest performing source at the moment, Rental, the year earlier bringing 4.04 B MXN. The greatest contribution to the revenue figure was made by United States — last year it brought ORION OFFICE REIT INC 3.31 B MXN, and the year before that — 4.06 B MXN.