Which country had a production (bbl/day) of 2,494,000 (10th)?
CREATE TABLE "table1_166346_1" (
  "country" text,
  "region" text,
  "joined_opec" real,
  "population_july_2012" real,
  "area_km" real,
  "production_bbl_day" text
);
SELECT "country" FROM "table1_166346_1" WHERE "production_bbl_day"='2,494,000 (10th)';