GRM (Gross Refining Margin) – Explained Simply
GRM measures how profitable an oil refinery is.
🔹 Definition
GRM = Value of refined petroleum products − Cost of crude oil
It shows how much a refinery earns per barrel after converting crude oil into products like petrol, diesel, ATF, LPG, etc.
➡️ Reported usually in USD per barrel ($/bbl).
🔹 Simple Example
Crude oil cost: $70/bbl
Value of refined products: $85/bbl
👉 GRM = $15/bbl
Higher GRM = higher refinery profitability.
🔹 Why GRM Matters (Especially for Indian Refineries)
Refineries don’t sell crude; they sell finished fuels
GRM directly impacts:
EBITDA
Cash flows
Quarterly results
Share price performance
For large, complex refineries (like India’s coastal refineries), GRM is a key earnings driver.