1910
Incorporation of The Attock Oil Company Limited (AOC)

Beginning of operations by AOC

1915
Discovery of oil at Khaur

First discovery of oil at Khaur by AOC

1922
Commissioning of two small refining units

Commissioning of two small refining units at Morgah near Rawalpindi with the capacity of 2,500 BPD

1937
Discovery of oil at Dhulian

Discovery of oil in Dhulian and installation of Dubbs and Lummus Plants with the capacity of 5,500 BPD

1968
Discovery of oil at Meyal and Toot

Discovery of oil at Meyal and Toot oilfields

1978
Incorporation of ARL
1979
Public Limited Company

Conversion of ARL into a Public Limited Company and its listing on three stock exchanges of the country

1981
Addition of two distillation units

Refining capacity was increased by the addition of two distillation units of 5,000 & 20,000 BPD capacity each

1987
Dispatch to Oil Marketing Companies (OMCs) with computerized metering
1996
Effluent Treatment Plant
1999
Expansion and upgradation project

Expansion and upgradation project with the installation of Heavy Crude Unit of 10,000 BPD and Catalytic
Reformer Complex of 5,000 BPD

2000
Commissioning of Captive Power Plant

Commissioning of Captive Power Plant with the capacity of 7.5 MW

2001
ISO 9001: 2000 certification
2001
Production of Polymer Modified Bitumen (PMB)
2002
ISO 14001: 1996 Certification
2006
OHSAS 18001: 1999 Certification
2007
ISO/IEC 17025:2005 Accreditation
2008
DCS (Distributed Control System) installation
2009
Enhanced Crude and Product storage capacity

Crude and Product storage capacity enhanced gradually by 70% during the period 2002-2009.

2012
ISO 50001:2011 (Self-Declared)
2016
Completion of expansion and upgradation project

Completion of expansion and upgradation project comprising of a Preflash Unit of 10,400 BPD, Light Naphtha Isomerization unit of 7,000 BPD, Diesel Hydro desulphurization unit of 12,500 BPD, related auxiliary units (Hydrogen manufacturing, Sulphur Recovery, Sour Water Stripper & Amine Treating unit) and Utilities units. Capacity enhancement of Captive Power Plant by 18 MW.

2020
ISO 45001: 2018 Certification
2022
ARL 100 Years Of Excellence

Attock Refinery Limited (ARL) commemorated its 100 years anniversary on 11th February, 2022 in a solemn ceremony at the Company’s General Office, Morgah Rawalpindi