CREATE TABLE table_28526 ("Institution" TEXT, "Location" TEXT, "Founded" FLOAT, "Type" TEXT, "Enrollment" FLOAT, "Joined" TEXT, "Left" TEXT, "Nickname" TEXT, "Primary Conference when joining the MSFA" TEXT, "Current Primary Conference" TEXT)

What type of school has the nickname the Oilers?
SELECT "Type" FROM table_28526 WHERE "Nickname" = 'Oilers'
SELECT "Type" FROM "table_28526" WHERE "Nickname" = 'Oilers'