The largest oil refinery in Pakistan is

The Pak-Arab Refinery (PARCO) is Pakistan’s largest oil refinery; located in Mahmood Kot; Muzaffargarh. It plays a critical role in the country’s energy sector; processing significant volumes of crude oil. Attock Refinery is smaller; and Pak-China is not a recognized entity. This question tests knowledge of Pakistan’s industrial infrastructure; with option C being the correct answer.