1922–1978: Early years and operations under Attock Oil Company Attock Refinery's history dates back to the early 20th century when British companies became interested in
oil exploration in the
Attock District of Punjab, then part of
British India. In December 1913, a group of British investors established the
Attock Oil Company with an initial investment of £25,000. In January 1915, Attock Oil commenced drilling operations which led to the discovery of oil at shallow depths. ==Products==