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The Abu Dhabi Company for Onshore Oil Operations (ADCO) operates onshore and in shallow coastal waters of the Emirate of Abu Dhabi, one of the seven members of the United Arab Emirates established on December 2nd 1971.

The original concession agreement was made with Petroleum Development (Trucial Coast) Ltd. On 11th January 1939, however geological work did not begin until after the Second World War. Exploratory drilling began in Abu Dhabi in February 1950.

The first commercial oil discovery was made at Bab in 1960, and exports began from the Jebel Dhanna terminal on December 14th, 1963. In 1962, the Company was renamed the Abu Dhabi Petroleum Company, ADPC. On 1st January 1973, the Government of Abu Dhabi acquired a
25% interest, which was increased to 60% as from 1st January 1974. The Government interest is held by the Abu Dhabi National Oil Company, ADNOC. ADCO was incorporated under Law No. 14 for 1978, on 8th October ,1978 and has been responsible, since February 1979, for operations in the concession area, which after relinquishments, now covers more than 21,000 square kilometers.

The Company produces mainly from five oil fields: - Asab, Bab, Bu Hasa, Sahil and Shah. These fields are linked by more than four hundred and fifty kilometers of pipeline, with storage and shipping facilities at Jebel Dhanna, where tankers load crude oil for markets in many parts of the world. A sixth field, Jarn Yaphour, situated some fifty kilometers east of the capital, came on stream in late 1993 and its production is transported to Umm Al-Nar Refinery for treatment. An early production system for the other North East fields: Rumaitha, Shanayel and Dabbi’ya was commissioned during 1994. In Asab, Bab, Bu Hasa and Sahil, water injection is used to maintain reservoir pressure and optimise oil recovery. Gas injection system is used in Bab & Bu Hasa fields.

Full Bab field oil development project was completed in 1993 and that of Sahil field during 1998.

The 1998 exploration programme continued to place emphasis on evaluation of hydrocarbon potential of frontier areas, delineation of the proven discoveries and assessing the potential of deep reservoirs.

During 1998, ADCO increased operating land rigs to twelve, owned by the National Drilling Company. These were engaged in exploration and development drilling and in workover operations.

In 1999, the Asab Gas Gathering & Injection Project encompassed many other related activities with it, such as the Asab Infrastructure Facilities, Additional Power Generation & Transmission. These elements have demonstrated ADNOC Group of Companies on the sharing of services.

During 2000 , three projects comprising upgrading of Asab and Jebel Dhanna Office / Accommodation, Two New Asab Frame-6 Generators and Shah Infill Wells were completed.

In 2001, refurbishment of old office building in Abu Dhabi and Jebel Dhanna insfrastructure upgrade projects were completed.

The year 2002 saw the completion of five projects including Asab Zone A/B Pilot Gas Injection, Bab New Additional Manifold, Bab Infrastructue Upgrade, Bu Hasa Two Additional Manifolds and Huwaila Multiphase Pump Installation.

During 2003, the following projects were completed: New RDS Manifilds (Asab), Vapour Recovery and Minimised Flaring (Asab/Sahil), Water Injection Enhancement (Sahil), Vapour Recovery and Zero Flaring Pilot (Bab), Water Injection Power Skid Replacement (Bu Hasa) and FEED for Onshore Power Generation Integration (Fields General).

During the year 2004, the Highest annual oil production ever (averaged over 1200 Mbd) while honoring highest oil industry guidelines. Drilling activities witnessed considerable achievements: highest annual footage drilled (1.55 million feet & highest number of wells completed (179 wells) ever and best annual safety/environment achievements. completed six full development subsurface models.

During the year 2005, Highest annual oil production ever (around 1235 Mbd) while honoring highest oil industry guidelines. Drilling activities witnessed considerable achievements: highest annual footage drilled (1.58 million feet), and highest number of wells completed (180 wells) with lowest lost time injuries. Commissioned Bab facilities expansion and North East Bab accommodation. Best annual Contract performance since inception in 2001, including annual LTIF rate of 0.16.

COMPANY HIGHLIGHTS

1939	Concession awarded to Petroleum Development (Trucial Coast) Ltd.; PD (TC).
1947	Geological exploration began.
1950	Drilling of first well at Ras Sadr commenced.
1960	First commercial oil discovery-Bab field.
1962	Second commercial oil discovery-Bu Hasa field and Company name changed to Abu Dhabi Petroleum Company, ADPC.
1963	First shipment of crude (Murban) exported from Jebel Dhanna terminal.
1965	Third commercial oil discovery-Asab field, and First relinquishment of part of the concession area.
1966	Fourth commercial oil discovery-Shah field and Company Main Office moved from Bahrain to Abu Dhabi.
1967	Fifth commercial oil discovery-Sahil field.
1973	Government of Abu Dhabi acquired 25% interest in the concession assigned to the Abu Dhabi National Oil Company, ADNOC.
1974	Government interest increased to 60%.
1978	Establishment of Abu Dhabi Company for Onshore Oil Operations, ADCO under Law No. 14 for 1978.
1979	ADCO became the operating company for the concession.
1982	Drilling commenced on Hudariat and Dabbi’ya man-made islands.
1983	Commissioned Shah field.
1984	Khuff gas discovery at Hail.
1987	Completed full field development in Bu Hasa and Asab
1989	Recommissioned Bab field.
1990	Twice broke world record in short-radius horizontal drilling.
1993	Commissioned three additional storage tanks at Jebel Dhanna with a capacity of one million barrels each, commenced early production scheme from Jarn Yaphour field, commenced Bab field oil development project and celebrated 30th anniversary of first crude shipment.
1994	Commissioned early production scheme from Rumaitha, Shanayel & Dabbi’ya.
1996	Commissioned Bu Hasa and Bab North gas injection projects and completed construction of the 4th Main Oil Pipeline.
1997	Completed the second phase of Housing Compound. as well as Bab-Bu Hasa Road Project.
1998	Completed New Headquarters Building Project.
1999	Completed Asab Gas Development Projects.
2000	Completed three projects comprising Asab and Jebel Dhanna Office/Accommodation uprades, two new Asab frame-6 generators and Shah infill wells.
2001	Completed the refurbishment of Old Office Building in Abu Dhabi and the Jebel Dhanna Infrastructure upgrade.
2002	Completed Asab Zone A/B pilot gas injection, Bab new additional manifold, Bab infrastructure upgrade, Bu Hasa two additional manifolds and Huwaila multiphase pump installation projects.
2003	The following projects were completed: New RDS Manifolds (Asab), Vapour Recovery and Minimised Flaring (Asab/Sahil), Water Injection Enhancement (Sahil), Vapour Recovery and Flaring Zero Pilot (Bab),Water Injection Power Skid Replacement (Bu Hasa) and FEED completed for Onshore Power Generation Integration (Fields General).
2004	Highest annual oil production ever (averaged over 1200 Mbd) while honoring highest oil industry guidelines. Drilling activities witnessed considerable achievements: highest annual footage drilled (1.55 million feet & highest number of wells completed (179 wells) ever and best annual safety/environmental achievements. Completed six full field development subsurface models.
2005	Drilling activities witnessed considerable achievements. Commissioned Bab facilities expansion and North Bab accommadation projects. Best annual Contract performance since inception in 2001, including annual LTIF rate of 0.16.
2006	ADCO achieved highest annual oil production ever (about 1,363 Mbd) while honoring guidelines. Commissioned Huwaila facilities as part of the 1.4 MMbd Scheme.

OUR MISSION
ADCO acts on behalf of its Shareholders to explore, develop and produce hydrocarbons within its area of operations. In meeting our Shareholders aspirations we will operate at maximum efficiency and optimum cost with minimum impact on the environment and we will avoid harm to people. we will promote an environment of continuous improvement while maintaining the highest standards of honesty and integrity in all aspects of our business.

ADCO Senior Management Team

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