Rising olive oil prices is what brought my attention to this article: only 6 months ago I could buy olive oil for 20 cents/ounce and this week the lowest price

Rising olive oil prices is what brought my attention to this article: only 6 months ago I could buy olive oil for 20 cents/ounce and this week the lowest price was 48 cents/ounce. Alternatives at far lower prices piqued my curiosity.