What is the highest CPC blend Kazakhstan number when Barrow Island Australia is smaller than 12?
CREATE TABLE "typical_heavy_naphtha_feedstocks" (
  "crude_oil_name_rightarrow_location_rightarrow" text,
  "barrow_island_australia" real,
  "mutineer_exeter_australia" real,
  "cpc_blend_kazakhstan" real,
  "draugen_north_sea" real
);
SELECT MAX("cpc_blend_kazakhstan") FROM "typical_heavy_naphtha_feedstocks" WHERE "barrow_island_australia"<12;