What is the highest game with Oakland Seals opponent and a record of 27-30-6 on a date more than 7?
CREATE TABLE "schedule_and_results" (
  "game" real,
  "date" real,
  "opponent" text,
  "score" text,
  "location_attendance" text,
  "record" text
);
SELECT MAX("game") FROM "schedule_and_results" WHERE "opponent"='oakland seals' AND "record"='27-30-6' AND "date">7;