BP's Gulf spill used Corexit; Nalco board had ex-BP and Exxon executives
Short record: the main facts, with sources. A full case file has not been prepared.
BP applied 1.84 million gallons of Corexit dispersants during the Gulf spill, and the dispersant maker Nalco had former BP and Exxon executives on its board. What is at stake for nature is surface and subsurface water, and the sources give no environmental measurements.
- Gulf response workers — Symptoms studied by McGowan et al. (2017) were linked to dispersant exposure; the sources treat these as associations, not proven causes
What happened
A report cited in the sources (chapter 2) says 1.84 million gallons of Corexit 9500A and 9527A were applied, 1.07 million gallons to surface waters and 0.77 million gallons of 9500A injected at BP's Macondo wellhead.
The NIH GuLF Study enrolled over 32,000 adults, and McGowan et al. (2017) reported that dispersant exposure was linked to all symptoms studied among about 27,659 to 29,468 participants.
DeSmog reported in September 2011 that Nalco's board included former BP and Exxon executives; the sources do not establish that these ties caused BP's choice of dispersant (DeSmog).
In court and with insurers
Lawsuits and rulings
Insurers
What we don't know
Nature
- Not measured Harm to nature: The record holds no measurement of harm to nature.
Record
- None on record Reported, not established: BP's choice of Corexit was linked to Nalco board ties; the sources say causation was not shown.
- Insufficient Reported but not verified: the Corexit product is said to be of Exxon origin.
- None on record The sources reviewed give no sales or contract values for Corexit.
- None on record The 'Chapter 2' volume figures and the NIH enrolment figure are cited without a URL in the sources reviewed.
- None on record The health findings are associations, not established causes.
Did the harm stop?
Not stated in the sources reviewed.
Who paid?
Not stated in the sources reviewed.
Sources
Press and investigations
- BP Oil Dispersant Corexit Contained Cancer-Causing AgentsDeSmog · 2011-09-27
Connected cases
- Alliance to End Plastic Waste and Renew Oceans (Ganges) India · 2019–2026
- Exxon Corporation (ExxonMobil from 1999) (Company) — here: Company whose former executives sat on Nalco's board; there: Founding member; named among five members compared by Unearthed
- Bolivian carbon scheme claimed 55 million tonnes; review found at most 5.8 million Bolivia · 1997–2010
- BP (Company) — here: Company responsible for the spill response and dispersant choice; there: company; partner in the scheme; donor to TNC
- BP “Beyond Petroleum” campaign and carbon footprint calculator United Kingdom · 2000–2025
- BP (Company) — here: Company responsible for the spill response and dispersant choice; there: Launched the “Beyond Petroleum” brand and the carbon footprint calculator
- BP acquires majority stake in Finite Carbon, a US forest carbon developer United States · 2020
- BP (Company) — here: Company responsible for the spill response and dispersant choice; there: acquirer of a majority stake in Finite Carbon
- BP and Eni do not declare gas flared at Iraq's Rumaila field, citing non-operator status Iraq · 2021–2022
- BP (Company) — here: Company responsible for the spill response and dispersant choice; there: Non-operator; does not declare Rumaila gas flaring
- BP Deepwater Horizon: the spill, the court cases and the recovery claims United States · 2010–2031
- BP (Company) — here: Company responsible for the spill response and dispersant choice; there: Well operator and lease holder; pleaded guilty; paid $20.8bn civil settlement; self-insured
- California v. ExxonMobil: plastics recycling claims and the Baytown plant United States · 2021–2026
- Exxon Corporation (ExxonMobil from 1999) (Company) — here: Company whose former executives sat on Nalco's board; there: Operator of the Baytown advanced recycling plant; defendant in the California case; claimant in the defamation suit
- COP28 decision promoted carbon capture and left room for transition fuels United Arab Emirates · 2023
- BP (Company) — here: Company responsible for the spill response and dispersant choice; there: Member of the Global CCS Institute; three of six executives worked or work here
- Danone, Unilever and BP scaled back sustainability goals between 2021 and 2025 Global · 2021–2025
- BP (Company) — here: Company responsible for the spill response and dispersant choice; there: Oil company that cut low-carbon investment in 2025
- Dark Basin hacking of climate groups (#ExxonKnew) United States · 2023
- Exxon Corporation (ExxonMobil from 1999) (Company) — here: Company whose former executives sat on Nalco's board; there: Company that denied knowledge
- Exxon Valdez: the spill, insurance and court cases United States · 1989–2015
- Exxon Corporation (ExxonMobil from 1999) (Company) — here: Company whose former executives sat on Nalco's board; there: Tanker owner's parent; pleaded guilty; paid $900m civil damages and $507.5m punitive damages
- Groningen gas field Netherlands · date not stated
- Exxon Corporation (ExxonMobil from 1999) (Company) — here: Company whose former executives sat on Nalco's board; there: Claimant in arbitration against the Netherlands (ExxonMobil)
- McKinsey advice to COP28 presidency and fossil clients United Arab Emirates · 2011–2025
- Exxon Corporation (ExxonMobil from 1999) (Company) — here: Company whose former executives sat on Nalco's board; there: McKinsey client; subject of the Massachusetts document order
- Plastic recycling symbol, resin codes and “advanced recycling” claims (United States) United States · 1970–2026
- Exxon Corporation (ExxonMobil from 1999) (Company) — here: Company whose former executives sat on Nalco's board; there: Defendant in California's suit; operator of the Baytown facility; claimant in the defamation suit
- Producers funded 90% of EDF's 2013 methane study, HPPR reported United States · 2013
- Exxon Corporation (ExxonMobil from 1999) (Company) — here: Company whose former executives sat on Nalco's board; there: Producer funder of the study
- Satartia CO2 pipeline rupture (Mississippi) United States · 2020–2025
- Exxon Corporation (ExxonMobil from 1999) (Company) — here: Company whose former executives sat on Nalco's board; there: Acquired Denbury in 2023
- UK agreed up to £21.7bn over 25 years for two CCS clusters United Kingdom · 2024
- BP (Company) — here: Company responsible for the spill response and dispersant choice; there: named as a leading company behind the clusters
- US budget law cuts fossil fuel royalties and sets 4 million coal acres for leasing United States · 2025
- Exxon Corporation (ExxonMobil from 1999) (Company) — here: Company whose former executives sat on Nalco's board; there: Named inauguration-fund donor