What does DOP stand for on olive oil bottles?

DOP certified extra virgin olive oil is a real guarantee, excluding fraud and counterfeiting, of the product quality. National DOP olive oil will in fact be produced from olives grown and processed in a given area.

Is this oil 100 percent olive oil?

Please stop believing this stupid conspiracy nonsense on the internet. In 2014, in response to Congressional Appropriations committees concerns: "The Committee is concerned with reports that consistently describe the prevalence of adulterated and fraudulently labeled olive oil imported into the United States and sold to American consumers. In addition, some products labeled as olive oil may contain seed oil, which poses a serious health risk to consumers who are allergic to seed oil. The Committee directs the FDA to take a sampling of imported olive oil to determine if it is adulterated or misbranded. In 2014, FDA performed a survey of olive oil products available to consumers within the United States, and included a cross-section of domestic and imported products in the survey. FDA used USDA grading standards in the assessment and used an analytical methodology capable of detecting 10 percent seed oil adulteration. Out of 88 products surveyed, only three showed evidence of adulteration." The FDA continues to monitor olive oil. Trump did not win reelection, pigs don't fly, the Earth is not flat. Your olive oil is fine.