Cosmo Oil Chiba

A 175,000 barrels per calendar day petroleum refinery in Chiba, JP, operated by Cosmo Energy. Nelson Complexity 9.5.

Record

Rated capacity

175,000 bpd (atmospheric crude distillation, calendar day)

Nelson Complexity Index

9.5

Status

Operating

Operator

Cosmo Energy

Supplier graph

bomforge.com/companies/cosmo-energy

Coordinates

35.6000, 140.0600

Wire, last 30 days

The stories filed under this plant in the last 30 days, newest first. Headlines and links belong to the publishers named.

1. 13 Oct 2026 General Low
   Cosmo Energy Group and Iwatani to Jointly Advance Hydrogen Business at Chiba Refinery Establishing a Supply Chain Utilizing an Existing Hydrogen Production Plant and a New Liquefied Hydrogen Plant

   Cosmo Energy Holdings and Iwatani Corporation made the final investment decision to restore an existing hydrogen production unit and construct a liquefied hydrogen plant at Cosmo Oil's Chiba Refinery.

   Hydrogen Central
2. 6 Oct 2026 General Low
   Iwatani and Cosmo Approve Joint Hydrogen Supply Chain at Chiba Refinery

   Iwatani Corporation and Cosmo Energy Holdings reached a final investment decision to jointly develop a hydrogen supply chain at Cosmo's Chiba refinery.

   IndexBox + 1 other outlet
3. 6 Oct 2026 General Low
   Cosmo Energy Holdings, Iwatani take FID on Chiba Refinery hydrogen project
   Quantum Commodity Intelligence
4. 6 Oct 2026 Operations Low
   Cosmo, Iwanti close on $316m Chiba refinery hydrogen project

   Cosmo Energy Group and Iwatani reached financial close on a $316 million hydrogen project at Cosmo's oil refinery in Chiba, Japan.

   gasworld