The Oakdale Irrigation District (OID) and South San Joaquin Irrigation District (SSJID) were created in 1909 under the Wright Act, and together own the oldest water rights on the Stanislaus River. The OID service area is located on both sides of the Stanislaus River in Stanislaus County, and the SSJID is located on the north side of the river, in Stanislaus and San Joaquin Counties. Today, the districts irrigate a combined , with the major crops being grapes, almonds, corn, rice, fruit orchards and pasture. Today, this area is one of the most productive agricultural regions of the United States; in 2014, Stanislaus and San Joaquin Counties produced a combined $7.6 billion of crops.