UN Compensation Commission "F4" environmental claims by Iran for the 1990–91 Gulf War
- My crop yields in the Southern Provinces fell in 1991; the Panel accepted that the fall was at least in part a direct result of the invasion and occupation. United Nations Compensation Commission
- The Panel did not accept the evidence submitted of lasting damage to my forests, rangeland soils, groundwater or coastal and coral systems attributable to the conflict. United Nations Compensation Commission
- Rangeland on 220 hectares of mine was remediated under a UNCC follow-up project. United Nations Compensation Commission
- Government and regulators Government of Iran: Said over 280,000 tons of toxic pollutants were deposited on Iranian territory and millions of barrels of crude oil were released into the Gulf (as summarised by the Panel). United Nations Compensation Commission
- Government and regulators Government of Iraq: Said Iran failed to show direct damage, that the plume rarely reached Iranian territory, that the Kuwait slick did not reach the Iranian coast and that no sampling was done in Iran in 1991 (as summarised by the Panel). United Nations Compensation Commission
- International bodies UNCC F4 Panel: Found ample evidence that pollutants from the Kuwait oil fires reached some parts of Iran and that Iran's territory was exposed to the Gulf oil spill, and did not accept most of the claimed damage. United Nations Compensation Commission
- Government and regulators Government of Iraq: Said reduced rainfall, late rains, frost and disease could explain the 1991 crop losses and that local producer prices should be used instead of market prices. United Nations Compensation Commission
- International bodies UNCC F4 Panel: Accepted that crop yields fell in 1991 "at least in part, a direct result" of the invasion and occupation, and recalculated the loss using FAO 1991 local producer prices and a productivity variable. United Nations Compensation Commission
- Government and regulators Government of Iran: Claimed USD 373,590,708 for marine and coral reef remediation. United Nations Compensation Commission
- International bodies UNCC F4 Panel: Awarded nothing, citing other possible major causes including the 1983 Nowruz oil spill, oil platforms, terminals, processing facilities and natural seeps. United Nations Compensation Commission
Iran filed environmental claims with the UN Compensation Commission for smoke, oil and refugee-related damage it said reached its south and south-west from the 1990–91 Gulf War. The F4 Panel recommended awards in four instalments; most of the long-term remediation claims received no award.
Figures as stated in report S/AC.26/2005/10 (Table 7) and Governing Council Decision 248; the other instalments are listed in the metrics.
Status As of 2 May 2013 (Decision 270): Iran's two follow-up projects were completed and the Follow-up Programme was closed for Iran.
- Government of Iran — Recommended awards in four instalments, including USD 27,780,752 in the fifth United Nations Compensation Commission
- Iranian Ports and Shipping Organization — USD 67,587 for two dredgers used against oil spills United Nations Compensation Commission
- Government of Iraq — Respondent to the claims; awards were paid from the Compensation Fund financed by a share of Iraq's oil-export revenue United Nations Compensation Commission
- Government of Iran — Claims for groundwater (USD 527,904,400), marine (USD 373,590,708), revegetation (USD 209,808,831) and fisheries (USD 161,000,000) received no award United Nations Compensation Commission
- Crops of the Southern Provinces — Yields fell in 1991, accepted by the Panel as at least in part a direct result of the invasion and occupation United Nations Compensation Commission
- Iranian territory and coast — Exposed to pollutants from the Kuwait oil fires and to the Gulf oil spill, according to the Panel United Nations Compensation Commission
What happened
Iran filed claims with the United Nations Compensation Commission (UNCC) in its "F4" environmental category for damage and loss of natural resources that it said reached its territory and coast from the 1991 Kuwait oil-well fires, the oil released into the Persian Gulf and refugees who arrived with livestock. The damage period claimed ran from 2 August 1990 to 2 March 1991 for the refugee arrivals, together with the 1991 oil fires and spills. The claims named the "Southern Provinces" of Bushehr, Fars, Hormozgan, Khuzestan, Kerman and Kohgiloyeh, the central Bushehr coast and the Nayband Bay mangrove forest. Iraq was the respondent.
In the F4 Panel's summary, Iran said that Iraq's detonation of Kuwait's oil wells released "more than 760,000 tons of smoke", that "over 280,000 tons of highly toxic pollutants were dispersed by air and deposited on Iranian territory" and that "over 15 million people inhaled the toxic smoke for more than 250 days". In later instalments Iran said its territory "was exposed to wet deposition from approximately 350,000 tonnes of soot" and cited "black rain" samples. Iraq, as the Panel summarised its position, said Iran "has failed to show that it has suffered any direct damage", that the smoke plume "rarely reached Iranian territory", that no sampling was done in Iran in 1991, and that "the only source of oil pollution along the Iranian shores was the traffic to the Iranian ports". The Panel found "ample evidence that pollutants from the oil fires in Kuwait reached some parts of Iran and that the territory of Iran was exposed to the oil spill in the Persian Gulf".
First instalment (Governing Council Decision 132, 21 June 2001): Iran filed 40 claims for monitoring and assessment studies; the Panel recommended USD 17,007,070. Second instalment (report S/AC.26/2002/26, 3 October 2002; Decision 171): Iran filed four claims totalling USD 64,315,474 and the Panel recommended USD 67,587, for two dredgers of the Ports and Shipping Organization used against oil spills in May–June 1991. No award was made for airport cleaning (USD 13,271,375), the electricity sector (USD 41,372,625) or the Iranian Fishery Company's replacement of 160,000 fishing nets (USD 9,481,481); the Panel found the evidentiary requirements were not met. The third instalment contained no Iranian claim.
Fourth instalment, part one (report S/AC.26/2004/16, 9 December 2004; Decision 234): claim 5000456 (remediation) had an asserted value of USD 2,484,623,669 and the Panel recommended USD 188,760, for rangeland restoration in refugee areas. Forests damaged by refugees, revegetation of rangeland and forest said to be damaged by oil-fire pollution (USD 209,808,831 claimed), groundwater remediation (USD 527,904,400) and marine and coral reef remediation (USD 373,590,708) received no award. For the marine claim the Panel cited other possible major causes of contamination on the central Bushehr coast, including "the 1983 Nowruz oil spill and other events during the Iran-Iraq war", and found that the evidence did not allow it to separate the share caused by the 1990–91 conflict. Fifth instalment (report S/AC.26/2005/10 and Decision 248, 30 June 2005): Iran filed five claims totalling USD 11,090,762,249; USD 27,780,752 was recommended and approved. Of that, USD 24,034,892 was for reduced crop yields in 1991 (claimed: USD 441,895,991); the fisheries claim (USD 161,000,000, including USD 23,000,000 for an estimated 35 per cent decrease in mangrove cover in Nayband Bay) and the terrestrial, cultural-heritage and marine parts of the "other resources" claim received nothing.
On 8 December 2005 Decision 258 set up the Follow-up Programme for Environmental Awards. It directed the UNCC to withhold 15 per cent of the F4 awards within the programme's scope until projects were completed satisfactorily. Iran's two projects were rangeland remediation (claim 5000456, USD 188,760, 220 hectares) and cancer-incidence monitoring (claim 5000394, USD 332,200 in the Decision), which set up a death registry for all provinces and a cancer registry for the provinces most affected by pollution. The UNCC page states that the four participating governments (Iran, Jordan, Kuwait, Saudi Arabia) together received about US$4.3 billion in remediation and restoration awards and that Iran "had only two small projects". On 2 May 2013 Decision 270 stated that Iran "has completed the implementation of its two environmental projects", declared the Programme closed for Iran and authorised release of the withheld funds "along with any accrued interest".
- 1990Damage period claimed for refugee arrivals begins (2 Aug)
- 1991Kuwait oil fires and Gulf oil releases; damage period claimed ends (2 Mar)
- 2001Decision 132 approves the first F4 instalment (21 Jun)
- 2002Second-instalment report S/AC.26/2002/26 (3 Oct); Decision 171
- 2004Fourth-instalment report, part one, S/AC.26/2004/16 (9 Dec); Decision 234
- 2005Decision 248 approves the fifth instalment (30 Jun); Decision 258 sets up the Follow-up Programme (8 Dec)
- 2013Decision 270: Iran's two projects completed; Programme closed for Iran (2 May)
What was said
“ample evidence that pollutants from the oil fires in Kuwait reached some parts of Iran and that the territory of Iran was exposed to the oil spill in the Persian Gulf”
“has failed to show that it has suffered any direct damage”
“over 15 million people inhaled the toxic smoke for more than 250 days”
“the only source of oil pollution along the Iranian shores was the traffic to the Iranian ports”
“has completed the implementation of its two environmental projects”
“had only two small projects”
Where accounts differ
Each party's account, side by side, with its source. The record does not settle these points; it shows them.
Said over 280,000 tons of toxic pollutants were deposited on Iranian territory and millions of barrels of crude oil were released into the Gulf (as summarised by the Panel).
United Nations Compensation CommissionSaid Iran failed to show direct damage, that the plume rarely reached Iranian territory, that the Kuwait slick did not reach the Iranian coast and that no sampling was done in Iran in 1991 (as summarised by the Panel).
United Nations Compensation CommissionFound ample evidence that pollutants from the Kuwait oil fires reached some parts of Iran and that Iran's territory was exposed to the Gulf oil spill, and did not accept most of the claimed damage.
United Nations Compensation CommissionSaid reduced rainfall, late rains, frost and disease could explain the 1991 crop losses and that local producer prices should be used instead of market prices.
United Nations Compensation CommissionAccepted that crop yields fell in 1991 "at least in part, a direct result" of the invasion and occupation, and recalculated the loss using FAO 1991 local producer prices and a productivity variable.
United Nations Compensation CommissionClaimed USD 373,590,708 for marine and coral reef remediation.
United Nations Compensation CommissionAwarded nothing, citing other possible major causes including the 1983 Nowruz oil spill, oil platforms, terminals, processing facilities and natural seeps.
United Nations Compensation CommissionIran's 40 claims totalled USD 42,951,383; recommended USD 17,007,070.
United Nations Compensation CommissionAmount claimed USD 40,838,883; amount recommended USD 17,007,070.
United Nations Compensation CommissionUSD 332,200.
United Nations Compensation CommissionUSD 332,300 claimed and awarded.
United Nations Compensation CommissionHow it looked
Shown
- Iran told the Panel that Iraq's detonation of Kuwait's oil wells released "more than 760,000 tons of smoke" and that "millions of barrels of crude oil were deliberately released into the Persian Gulf by Iraq's forces".Government of Iran, as summarised by the F4 Panel · United Nations Compensation Commission
- Iran said its territory "was exposed to wet deposition from approximately 350,000 tonnes of soot" and submitted "black rain" samples.Government of Iran, as summarised in S/AC.26/2005/10 para. 100 · United Nations Compensation Commission
Recorded
- The Panel recommended USD 17,007,070 for Iran's first-instalment studies, USD 67,587 in the second instalment, USD 188,760 in the fourth instalment (part one) and USD 27,780,752 in the fifth instalment.
- The Panel accepted that crop yields in the Southern Provinces fell in 1991 and that the fall was "at least in part, a direct result" of the invasion and occupation.
- The fourth-instalment groundwater (USD 527,904,400), marine and coral reef (USD 373,590,708) and revegetation (USD 209,808,831) claims received no award.
- Iran's Follow-up Programme projects totalled USD 520,960 in Decision 258; Decision 270 closed the Programme for Iran on 2 May 2013.
Who gained
Reached nature or the ground
Gained elsewhere
Responses on record
- Government of Iran (2001): Said the damage "will continue to have adverse impacts on its marine environment, fisheries, water resources, terrestrial environment, agricultural lands, rangelands and forests, cultural heritage sites and public health" (as summarised by the F4 Panel). · United Nations Compensation Commission
- Government of Iraq (2001–2005): Said Iran failed to show direct damage, that the plume rarely reached Iranian territory, and that reduced rainfall, late rains, frost and disease could explain the 1991 crop losses (as summarised by the Panel). · United Nations Compensation Commission
In court and with insurers
Lawsuits and rulings
- 2001Claimant won$17.01m recommended (millions)Iran's F4 claims, first instalment (Decision 132)UN Compensation Commission, F4 Panel of Commissioners and Governing Council · International court · Government of Iran → Government of Iraq
Iran filed 40 claims for monitoring and assessment studies; the Panel recommended USD 17,007,070 and the Governing Council approved on 21 June 2001. United Nations Compensation Commission
- 2002Claimant won$0.07m recommended (millions)Iran's F4 claims, second instalment (Decision 171)UN Compensation Commission, F4 Panel of Commissioners and Governing Council · International court · Government of Iran → Government of Iraq
Four claims totalling USD 64,315,474; USD 67,587 recommended for two dredgers used against oil spills. Airport cleaning, electricity-sector and fishing-net claims received no award for lack of evidence. United Nations Compensation Commission
- 2004Claimant won$0.19m recommended (millions)Iran's F4 claims, fourth instalment part one (Decision 234)UN Compensation Commission, F4 Panel of Commissioners and Governing Council · International court · Government of Iran → Government of Iraq
Claim 5000456 (asserted value USD 2,484,623,669): USD 188,760 recommended for rangeland restoration in refugee areas; forest, revegetation, groundwater and marine sub-claims received no award. United Nations Compensation Commission
- 2005Claimant won$27.78m recommended and approved (millions)Iran's F4 claims, fifth instalment (Decision 248)UN Compensation Commission, F4 Panel of Commissioners and Governing Council · International court · Government of Iran → Government of Iraq
Five claims totalling USD 11,090,762,249; USD 27,780,752 recommended and approved on 30 June 2005, including USD 24,034,892 for reduced 1991 crop yields. The fisheries claim (USD 161,000,000) received nothing. United Nations Compensation Commission
Insurers
What nature saw
Nature's report opens this page. Below: further outcomes measured on the ground.
What we don't know
Nature
Accounts
Record
- None on record None on record: the date and amount of each payment to Iran from the UNCC Compensation Fund.
- Self-reported only Self-reported only: Iran's figures for mangrove loss (166.3 ha at Nayband Bay) and coral are Iran's claims; the Panel made no finding confirming them.
- Not measured Not measured: Iraq argued, and the Panel recorded, that no sampling was conducted in Iran in 1991.
- Insufficient Insufficient: the Panel's report states that Iran "has not submitted evidence, such as ground-level monitoring data on SO2, ozone, and soot levels".
- Disputed Insufficient: for long-term marine damage the data did not allow the Panel to determine "what proportion of the damage can reasonably be attributed" to the conflict.
- None on record None on record: project dates for Iran's two Follow-up Programme projects on the UNCC page.
- None on record None on record: whether Iran published its own reports on the first-instalment studies, for example the cancer-registry results.
- Disputed Figures differ: Iran's first-instalment claim is USD 42,951,383 in the Panel's report and USD 40,838,883 in Decision 132; claim 5000394 is USD 332,200 in Decision 258 and USD 332,300 in report S/AC.26/2005/10.
- None on record None on record: insurance.
Did the harm stop?
The claims concern events of 1990–91. The Panel did not accept evidence of lasting damage attributable to the conflict for forests, rangeland soils, groundwater or coastal and coral systems.
Who paid?
Awards were paid from the UNCC Compensation Fund, financed by a share of Iraq's oil-export revenue under UN Security Council resolutions. The date and amount of each payment to Iran are not on record.
Sources
International bodies
- Report and recommendations made by the Panel of Commissioners concerning the first instalment of "F4" claims, S/AC.26/2001/16United Nations Compensation Commission · 2001-06-22
- Governing Council Decision 132: first instalment of "F4" claimsUnited Nations Compensation Commission · 2001-06-21
- Report and recommendations concerning the second instalment of "F4" claims, S/AC.26/2002/26United Nations Compensation Commission · 2002-10-03
- Report and recommendations concerning the third instalment of "F4" claims, S/AC.26/2003/31United Nations Compensation Commission · 2003-12-18
- Report and recommendations concerning the fourth instalment of "F4" claims, part one, S/AC.26/2004/16United Nations Compensation Commission · 2004-12-09
- Report and recommendations concerning the fifth instalment of "F4" claims, S/AC.26/2005/10United Nations Compensation Commission · 2005-06-30
- Governing Council Decision 248: fifth instalment of "F4" claimsUnited Nations Compensation Commission · 2005-06-30
- Governing Council Decision 258: Follow-up Programme for Environmental Claims Awards (corrected annex)United Nations Compensation Commission · 2005-12-08
- Governing Council Decision 270: fulfilment of the Follow-up Programme mandate for Iran and Saudi ArabiaUnited Nations Compensation Commission · 2013-05-02
- Follow-up Programme for Environmental Awards (overview)United Nations Compensation Commission ·
- Follow-up Programme: Islamic Republic of IranUnited Nations Compensation Commission ·
- Decisions of the Governing Council (index)United Nations Compensation Commission ·
Connected cases
- Gulf War compensation (UNCC) and Kuwait oil-damage remediation Kuwait · 1991–2025 Related matter
- Government of Iraq (Government) — here: Respondent; liable under the UNCC process; there: Party against which the claims were made
- United Nations Compensation Commission (International organisation) — here: Commission whose F4 Panel and Governing Council decided the claims; there: UN commission that awarded and paid claims against Iraq
- Iran–Iraq war (1980–88): environmental damage recorded by the UN expert team in 1991 and Iran's damage estimate Iran · 1980–1991 Related matter
- Government of Iran (Government) — here: Claimant; there: Source of the damage figures; later reparations demands
- Government of Iraq (Government) — here: Respondent; liable under the UNCC process; there: Party against which reparations were demanded
- Nowruz oil-field spill, 1983–1985 Iran · 1983–1985 Related matter
- United Nations Compensation Commission (International organisation) — here: Commission whose F4 Panel and Governing Council decided the claims; there: F4 Panel cited the spill as a parallel cause of contamination
- Desalination plants hit in the 2026 war: Qeshm Island and Bahrain Iran · 2026
- Government of Iran (Government) — here: Claimant; there: Foreign minister's statement on Qeshm
- Electricity and diesel for groundwater pumping in Iran: subsidies and payments Iran · 2014–2024
- Government of Iran (Government) — here: Claimant; there: Sets energy prices; Majlis ordered the Central Bank funding
- Hamoun wetlands, Helmand water and the EU/UNDP restoration project Iran · 1973–2025
- Government of Iran (Government) — here: Claimant; there: Party to the 1973 Helmand treaty
- Hoor al-Azim wetland, oil-field development and dikes in Khuzestan Iran · 2007–2026
- Government of Iran (Government) — here: Claimant; there: Government of Iran
- Hyrcanian forests logging moratorium: announced budgets, partial allocation and the 2025 Elit fire Iran · 2015–2025
- Government of Iran (Government) — here: Claimant; there: Enacted the ban and set the budgets
- Iran's 2026 war-damage estimate of about USD 270bn and its calls for compensation and environmental accountability Iran · 2026
- Government of Iran (Government) — here: Claimant; there: Source of the damage estimate and the compensation demands
- Iran's Clean Air Law and urban air pollution in Tehran and Ahvaz Iran · 2017–2025
- Government of Iran (Government) — here: Claimant; there: Budget allocations for the law
- Iran's Groundwater Restoration and Balancing Plan: unlicensed wells, sealing, meters and budgets Iran · 2005–2026
- Government of Iran (Government) — here: Claimant; there: Government; plan and budget bills
- Lake Urmia decline and the Urmia Lake Restoration Program Iran · 1995–2026
- Government of Iran (Government) — here: Claimant; there: Funded the programme
- Land subsidence on the Tehran plain and across Iran Iran · 1968–2025
- Government of Iran (Government) — here: Claimant; there: Government; ministries and the Cartographic Center report subsidence data
- Landmines and explosive remnants of the Iran–Iraq war in Iran's western provinces Iran · 1980–2025
- Government of Iran (Government) — here: Claimant; there: Runs the state demining programme
- Mazut burning in Iranian power plants, 2020–2025 Iran · 2020–2026
- Government of Iran (Government) — here: Claimant; there: Presidency; decisions on mazut use
- Persian Gulf and Oman Sea desalinated water transfer to Kerman, Yazd and Isfahan Iran · 2016–2025
- Government of Iran (Government) — here: Claimant; there: Ordered the lines into operation; ministers made statements
- Plans to move Iran's capital to the Makran coast, 2024–2025 Iran · 2024–2025
- Government of Iran (Government) — here: Claimant; there: Proposed the relocation; president, vice president, spokeswoman and foreign minister made statements
- Rafsanjan pistachio plain: aquifer decline, subsidence and export revenue Iran · 1960–2025
- Government of Iran (Government) — here: Claimant; there: Government; ministries cited on pistachio exports and water markets
- South Pars and Assaluyeh: sulphur dioxide emissions and the pollution levy Iran · 2005–2026
- Government of Iran (Government) — here: Claimant; there: Cabinet approved the improvement document and the 2020 decision
- Strikes on Iranian nuclear sites, 2025 and 2026: IAEA statements on contamination and the Bushehr reactor Iran · 2025–2026
- Government of Iran (Government) — here: Claimant; there: Foreign minister's statements on Bushehr
- Strikes on Iranian oil and gas facilities, June 2025 and March 2026, and damage at Qatar's Ras Laffan Iran · 2025–2026
- Government of Iran (Government) — here: Claimant; there: Owner of the struck facilities; source of the state-media accounts
- Strikes on Tehran fuel depots, March 2026: smoke, black rain and Iran's "ecocide" claim Iran · 2025–2026
- Government of Iran (Government) — here: Claimant; there: Characterised the attack as ecocide; wrote to the UN
- Zagros oak forests: the UNDP/GEF Central Zagros project, its evaluation and the fires of 2024–2026 Iran · 2005–2026
- Government of Iran (Government) — here: Claimant; there: Allocated 13,193,669 to the project
- Zayandeh Rud and the Gavkhouni wetland: water transfers and farmers' protests in Isfahan Iran · 1953–2025
- Government of Iran (Government) — here: Claimant; there: Promised farmers' aid and compensation