- Asaba Massacre (Oct 1967) — confirmed dead: c. 700–1,000 Anioma men and boys (Bird & Ottanelli, *The Asaba Massacre*, 2017).
- Warri Crisis cumulative deaths (1997–2003): c. 1,500 documented; 150,000+ displaced.
- Gbaramatu invasion (May 2009): federal figure "few hundred", IYC figure 2,400+.
- MEND-era production losses (2006–2009): 40% of national crude output at peak.Grievance-to-Insurgency Pipeline
- Niger Delta Amnesty enrolees (2009–): 30,000; cumulative budget through 2024: N712 bn.
- Delta crude output (2024): 400,000–600,000 bpd state share; #2 producer after Akwa Ibom.
Delta State · Crisis deep dive
Statistics
Methodology
Tier 1 · primary
Courts. Gazettes. National archives.
Tier 2 · corroborating
OCCRP. HRW. BudgIT. TheCable.
Tier 4 · tertiary, flagged
Wikipedia only where primary is pending. Always labelled.