- 1978 Egbema/Egbesu first Ijaw uprising — Western Ijaw youths block Shell flow stations at Olomoro and Uzere; first organised oil-community protest in Delta.
- 1984 Umuechem-style killings at Iko (Akwa Ibom) reverberate in Delta with similar Shell/MOPOL deployments at Aleibiri and Odimodi.
- 1989 Ogoda-Otuasega and Egwa II oil-spill protests.
Delta State · Crisis deep dive
Second & Third Republics — first oil-community conflicts (1979–1993)
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.