US strikes on Iran restart and Brent crude jumps about 3% above $90 a barrel as Strait of Hormuz supply-disruption fears return

Who it hits first

• Chennai Petroleum, a standalone refiner with a 95% crude cost weight, faces the sharpest raw input squeeze because it owns no oil wells to offset it.
• Savita Oil, which turns crude-derived base oil into lubricants, sees 86.3% of its cost base reprice upward.
• IndiGo pays more for jet fuel, its single largest expense, and cannot raise fares as fast.
• Gandhar Oil, a specialty white-oil processor, absorbs a straight cost increase because its consumer and pharma customers buy on contracted prices.

Who may gain

• ONGC and Oil India pump crude and sell it, so every barrel earns more when Brent rises.
• BPCL, HPCL and Indian Oil have historically gained on a crude spike because the gap between crude and refined fuel prices widens and crude already sitting in their tanks rises in value - BPCL rose 10.4% in the week after the 10 June 2026 spike.

Along the supply chain

Where demand moves

How it spreads across sectors

Commodity angle

A pattern seen before

When it plays out

Other sectors it reaches

• {"causal_chain":"Brent spike raises petrol/diesel expectations and financing-rate concerns; consumers delay discretionary vehicle purchases while tyre, plastics, rubber and logistics costs rise for OEMs and component makers.","direction":"negative","example_tickers":["MARUTI","M\u0026M","CEATLTD"],"magnitude":"medium","notes":"Two-wheelers and entry cars are most exposed to fuel-affordability sentiment; tyre makers face direct crude-linked input pressure. [Suggested by Codex Layer 5.5]","sector":"Automobiles \u0026 Auto Components","time_horizon":"1_to_4_weeks"}
• {"causal_chain":"Higher crude lifts diesel freight costs and can raise imported petcoke/coal-linked energy costs; cement margins compress because pricing power is regional and delayed.","direction":"negative","example_tickers":["ULTRACEMCO","SHREECEM","AMBUJACEM"],"magnitude":"medium","notes":"Fuel and freight are large cost heads, making this a defensible second-order inflation channel. [Suggested by Codex Layer 5.5]","sector":"Cement \u0026 Cement Products","time_horizon":"1_to_6_months"}
• {"causal_chain":"Oil shock raises bitumen, diesel, equipment-operation and transport costs; government and private project execution margins can tighten if escalation clauses lag.","direction":"negative","example_tickers":["LT","NCC","PNCINFRA"],"magnitude":"medium","notes":"Road EPC and civil contractors are especially exposed through bitumen and diesel-heavy execution. [Suggested by Codex Layer 5.5]","sector":"Construction \u0026 Infrastructure","time_horizon":"1_to_6_months"}
• {"causal_chain":"Diesel and marine fuel costs rise after crude spike; road freight, ports, shipping and express logistics face margin pressure unless fuel surcharges are passed through quickly.","direction":"negative","example_tickers":["CONCOR","TCI","BLUEDART"],"magnitude":"medium","notes":"Pass-through ability varies by contract structure; spot freight may reprice faster than long-term contracts. [Suggested by Codex Layer 5.5]","sector":"Logistics \u0026 Transportation","time_horizon":"immediate"}
• {"causal_chain":"Higher oil raises mining, smelting, shipping and inland freight costs; stronger dollar and risk-off sentiment can pressure commodity importers while exporters may partly benefit from rupee weakness.","direction":"mixed","example_tickers":["TATASTEEL","HINDALCO","NMDC"],"magnitude":"small","notes":"Energy-intensive aluminium is more cost-sensitive; exporters may get a currency offset. [Suggested by Codex Layer 5.5]","sector":"Metals \u0026 Mining","time_horizon":"1_to_4_weeks"}
• {"causal_chain":"If gas/LNG and imported coal prices rise with geopolitical risk, merchant power prices and fuel costs move up; generators with merchant exposure benefit while distribution companies and fuel-short plants suffer.","direction":"mixed","example_tickers":["NTPC","JSWENERGY","TATAPOWER"],"magnitude":"medium","notes":"Impact depends on fuel mix, pass-through contracts and merchant-market exposure. [Suggested by Codex Layer 5.5]","sector":"Power","time_horizon":"1_to_6_months"}
• {"causal_chain":"Oil-driven inflation raises expectations of tighter-for-longer rates and wider current-account deficit; bond yields can rise, hurting banks' treasury books and rate-sensitive lending demand while insurers may benefit from higher reinvestment yields.","direction":"mixed","example_tickers":["HDFCBANK","SBIN","ICICIPRULI"],"magnitude":"medium","notes":"Public-sector banks with larger bond books may see mark-to-market pressure if yields spike. [Suggested by Codex Layer 5.5]","sector":"Financial Services","time_horizon":"1_to_4_weeks"}
• {"causal_chain":"Oil shock can weaken INR through higher import bill and risk-off flows; rupee depreciation supports IT services revenue translation, though global risk-off may cap valuation multiples.","direction":"mixed","example_tickers":["TCS","INFY","HCLTECH"],"magnitude":"small","notes":"Currency translation is positive, but higher US yields can pressure growth-stock valuations. [Suggested by Codex Layer 5.5]","sector":"Information Technology","time_horizon":"1_to_4_weeks"}
• {"causal_chain":"Crude-linked synthetic fibres, dyes, packaging and freight become costlier; export orders may face margin pressure if costs cannot be passed through quickly.","direction":"negative","example_tickers":["VTL","KPRMILL","WELSPUNLIV"],"magnitude":"small","notes":"Synthetic-heavy and export-oriented players are more exposed than cotton-heavy producers. [Suggested by Codex Layer 5.5]","sector":"Textiles \u0026 Apparel","time_horizon":"1_to_6_months"}
• {"causal_chain":"Crude spike raises solvent, packaging, freight and imported intermediate costs; rupee weakness can aid exporters but API/input inflation hurts formulations and domestic margins.","direction":"mixed","example_tickers":["SUNPHARMA","DRREDDY","CIPLA"],"magnitude":"small","notes":"Large exporters may see a partial FX offset; domestic-focused firms have less natural hedge. [Suggested by Codex Layer 5.5]","sector":"Healthcare \u0026 Pharmaceuticals","time_horizon":"1_to_6_months"}