---
schema_version: "secwatch.filing_event.v1"
accession: "0000101778-23-000137"
form_type: "8-K/A"
ticker: null
cik: "0000101778"
company_name: "MARATHON OIL CORP"
filed_at: "2023-10-30T23:59:59+00:00"
generated_at: "2026-06-09T05:29:30.345872+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Marathon Oil amends bylaws to update director nomination, voting, and governance provisions

## Summary
- Board adopted amended and restated bylaws effective Oct 25, 2023.
- New requirement: stockholders nominating directors must deliver Rule 14a-19 compliance evidence at least 8 business days before meeting.
- Revised majority voting provision clarifies when director election is deemed contested.
- Chair of stockholder meeting now has explicit power to adjourn; gender-neutral titles adopted.
- Administrative updates reflect recent Delaware law changes.

## SEC filing metadata
- accession: 0000101778-23-000137
- form_type: 8-K/A
- cik: 0000101778
- company_name: MARATHON OIL CORP
- filed_at: 2023-10-30T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/101778/000010177823000137/0000101778-23-000137-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/101778/000010177823000137/mro-20231025.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000101778-23-000137
- JSON: https://secwatch.observer/filing/0000101778-23-000137.json
- Plain text: https://secwatch.observer/filing/0000101778-23-000137.txt

## Key facts
- Governance Changes
  MARATHON OIL CORP: Adopted amended and restated by-laws effective immediately on October 25, 2023, revising director nomination and stockholder proposal procedures, majority voting provisions, meeting chair powers, and making administrative updates (effective 2023-10-25).
  - Change: bylaw amendment
  - Effective: 2023-10-25
  source text: On October 25, 2023, the Board of Directors (the “Board”) of Marathon Oil Corporation (the “Company”) adopted and approved, effective immediately, amended and restated by-laws of the Company (as amended and restated, the “Amended and Restated By-laws”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/101778/000010177823000137/0000101778-23-000137-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.