ENERGY · HOUSEHOLD

Brent + INR Sensitivity: OMC Margins & Your Fuel Bill

A practical map from crude and currency to pump prices—plus a household planner you can apply today.
By bataSutra Editorial · October 9, 2025
In this piece:
  • The short — what moved this week
  • OMC margin math (illustrative)
  • City bands & household planner
  • What can change prices next
  • Operator tips for fleets/SMEs

The short

  • Crude: Brent hovered in the mid-$60s band through the week; no sharp breakouts.
  • FX: USD/INR stayed range-bound; importers laddered hedges near known payables.
  • Retail: Petrol/diesel stickers were steady across top metros; ATF/commercial LPG resets from earlier this month still in effect.
  • Margins: OMC marketing margins remain sensitive to a $5/bbl crude swing or a ₹1/USD move in FX.

OMC margin math (illustrative)

ScenarioBrent ($/bbl)USD/INRIndicative diesel gross margin (₹/L)Indicative petrol gross margin (₹/L)
Base6683.5~2.0–2.5~1.5–2.0
Crude +$57183.5~1.0–1.5~0.5–1.0
INR +₹1/USD weaker6684.5~1.4–1.9~0.9–1.4
Crude −$5 & INR stable6183.5~2.8–3.3~2.3–2.8

City bands & household planner (illustrative)

CityPetrol (₹/L)Diesel (₹/L)Notes
Mumbai~106–110~93–97Local levies widen spread vs Delhi
Delhi~102–105~90–93Baseline reference for many fleets
Bengaluru~102–106~88–92Recent tax adjustments reflected

Household planner

  • For a 1,200 km/month driver at 14 km/L: petrol spend ≈ ₹8,700–9,000 at Delhi bands.
  • Same run on diesel at 18 km/L: ≈ ₹6,000–6,200.
  • Tip: Small route/traffic optimizations (−5% kms) save ~₹300–450/month.

EV cross-check (if relevant)

  • At ₹9/kWh and 7 km/kWh: ≈ ₹1,540 for 1,200 km (ex-parking/financing).
  • Use your city’s slab and charger tariff to sanity-check.

What can change prices next

  • Unexpected crude supply headlines shifting Brent by ±$5–10/bbl.
  • INR volatility around large FX outflows or global risk events.
  • State/central tax tweaks; OMC retail policy windows around festivals.

Operator tips — fleets/SMEs

  • Use fuel cards with weekly caps; reconcile mileage anomalies.
  • Hedge diesel exposure via staggered vendor contracts; add buffer for long-haul corridors.
  • Schedule refuels in lower-band cities when routes allow.

Operator tips — households

  • Refuel mid-week mornings; avoid weekend/holiday congestion losses.
  • Tyre pressure & basic service can deliver 3–5% efficiency gains.