• Location: Onshore, southwest of Abu Dhabi city
• Oil in place (estimate): 10.28 billion barrels
• Production: ~250,000 barrels per day
• Operator: ADNOC
• Key techniques: Enhanced oil recovery (EOR), digital monitoring

Bu Hasa Oil Field: High-Volume Onshore Producer

Bu Hasa, also onshore in Abu Dhabi, produces around 600,000 barrels per day, with proven reserves of around 6.52 billion barrels, per Wikipedia. It was discovered in 1962.

• Production: ~600,000 barrels per day
• Oil in place (estimate): 6.52 billion barrels
• Operator: ADNOC
• Technology: Steam injection, predictive-maintenance analytics

Zakum Complex: Offshore Scale, Smaller Reserve Share

The Zakum complex — Upper Zakum and Lower Zakum — extends offshore northwest of Abu Dhabi and was discovered in 1963. It is among the largest offshore fields in the world by production volume, run by ADNOC with international partners using long-reach horizontal drilling and smart-completion technology. Wikipedia puts proven reserves at about 21 billion barrels for Upper Zakum and 17.2 billion for Lower Zakum. Lower Zakum produces around 425,000 barrels per day, and Upper Zakum has been expanded toward 750,000.

Asab and Dabbiya: Onshore Resilience

Asab, detailed above, and Dabbiya together represent the steady, mature-field half of Abu Dhabi’s onshore portfolio. Dabbiya applies EOR, horizontal drilling, and water-flooding to develop reserves that came online more recently than Bab or Bu Hasa, while Asab’s 3.6-billion-barrel base and 450,000 bpd production make it one of the larger single contributors to the onshore majority.

Dubai Oil Fields: Fateh and the Emirate’s Offshore Legacy

Dubai’s oil fields are a different story from Abu Dhabi’s: Dubai’s production has always come from offshore. Fateh Oil Field, operated by Dubai Petroleum, was the emirate’s founding oil asset and pioneered underwater oil storage: the first “Khazzan” tank was completed in 1969, and the first cargo shipped on 22 September 1969, per Wikipedia. Before that, offshore oil had always been piped to onshore storage.

Dubai’s reserves and output are a small fraction of the national total — the overwhelming majority of both UAE reserves and production sit in Abu Dhabi. But Fateh remains historically significant as the field that funded Dubai’s initial infrastructure buildout before the emirate diversified into trade, aviation, and real estate. Significant gas volumes were found in a deep well at Fateh in 2014.

• Operator: Dubai Petroleum
• Location: Offshore, Dubai
• Discovery era: 1960s
• Notable: Origin of the offshore “Fateh System” storage design

Comparison Table: Reserves, Production, and Discovery Dates

Main UAE Oil Fields at a Glance

Sources: Wikipedia entries for Bu Hasa, Asab, Upper Zakum, Lower Zakum and Fateh, and the ADCO history for Bab. Field reserve figures are older estimates and are not audited disclosures; ADNOC does not publish reserves field by field.

Bab and Bu Hasa belong to the ADNOC Onshore concession, which covers more than 21,000 square kilometres. Upper Zakum is operated by ADNOC Offshore with ExxonMobil holding 28% and Japan’s JODCO 12%. Lower Zakum’s 40% foreign interest is shared by INPEX, CNPC, ONGC Videsh, Eni and TotalEnergies.

UAE Oil Production Expansion: Timeline Through 2027

UAE crude oil and condensate production reached 3.8 million barrels per day in 2025, per EIA data. ADNOC has stated a target of 5 million barrels per day of production capacity by 2027 — the gap between those two figures, 1.2 million bpd, is the expansion this timeline tracks. Source: U.S. Energy Information Administration.

That expansion rests on two levers: bringing new capacity online at fields still being developed, and squeezing more recoverable oil out of mature onshore fields through enhanced oil recovery. The EIA brief names expansion plans at the Nasr, Upper Zakum and Lower Zakum fields and ADNOC capital spending of $150 billion for 2026 to 2030.

It is worth separating capacity from actual output here: 5 million bpd is ADNOC’s stated production capacity target for 2027, not a production guarantee. Actual UAE output in any given month also depends on OPEC+ quota agreements, which can hold members below their technical capacity. Readers tracking the current production figure against this target should check the EIA’s International Energy Statistics, updated monthly, rather than relying on a capacity target as if it were realized output.

What to Track for a Current Read on This Timeline

• Monthly production: EIA’s International Energy Statistics database, updated monthly.
• OPEC+ quota changes: affect how much of stated capacity UAE is permitted to produce in a given quarter.
• EOR project milestones: ADNOC periodically announces recovery-rate improvements at named fields; these are the mechanism behind the 50-70% recovery target.
• Reserve reclassifications: ADNOC’s January reserve statement can shift the proven-reserves base as EOR projects convert probable reserves to proven.

UAE Oil Output in 2026: Capacity and the Hormuz Shock

The latest EIA country brief (July 2026) adds three facts that matter for anyone tracking UAE oil fields.

• Capacity is disputed. ADNOC reports official production capacity of 4.85 million barrels per day. The EIA’s 2025 estimate is 4.15 million, and the International Energy Agency’s is about 4.3 million.
• The Strait of Hormuz closure cut output sharply. After Iran effectively closed the strait in March 2026, UAE crude and condensate production fell from 4.0 million barrels per day at the start of the year to an estimated 2.4 million on average from March through May.
• Pipelines bypass the strait. The 1.8 million barrel-per-day Abu Dhabi Crude Oil Pipeline carries Murban crude from inside the Gulf to Fujairah, outside Hormuz. ADNOC is building a second pipeline of 1.5 million barrels per day. Fujairah also has an underground storage site of about 42 million barrels.

That makes the 5 million barrel-per-day target for 2027 a capacity goal. Actual output will depend on OPEC+ quotas and on whether tankers can use the strait.

Calculator: Field Reserve Life at Current Production Rate

Use the figures already covered above — or substitute your own field’s reserves and daily output — to see how many years a static reserve base would last at a constant production rate.

Assumptions: treats production as constant (it rarely is), applies the EOR percentage as a flat uplift to total recoverable barrels rather than modeling recovery-curve timing, and excludes new discoveries, decommissioning, or OPEC+ quota changes. This is a simplified static estimate, not a reservoir engineering forecast — use it to compare fields on the same basis, not to predict an exact depletion date.

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FAQ: UAE Oil Fields, Reserves, and Production

Further reading:

• Burgan oil field

Conclusion

The UAE's oil field story is really two separate but linked facts: an estimated 120-billion-barrel national reserve base concentrated almost entirely in Abu Dhabi, split between onshore fields such as Bab, Bu Hasa and Asab and the giant offshore Zakum field, and Dubai's Fateh field remains a small, historically important offshore asset outside Abu Dhabi's dominant share. Production is climbing toward ADNOC's stated 5-million-bpd 2027 capacity target from 3.8 million bpd in 2025, although the 2026 Strait of Hormuz closure showed how fast output can fall — figures worth re-checking against EIA and ADNOC's own annual disclosures as they update.

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