01Physical constraints change the story
Oil, gas, metals and agricultural goods have different production, storage and transport constraints. A demand-driven oil rally can accompany stronger growth, while a supply-disruption rally can raise inflation and hurt consumers. The same price direction can therefore signal different macro outcomes. WTI and Brent refer to different oil benchmarks; natural gas is particularly regional because transport and storage are constrained. Quote units matter: dollars per barrel are not dollars per unit of energy.
02Spot, futures and rolling a position
A spot price describes near-term delivery. A futures contract specifies delivery or settlement at a later date. The futures curve reflects storage, financing, convenience yield and market expectations. Contango means later contracts trade above nearer ones; backwardation means the reverse. A fund rolling futures may have returns different from the spot commodity because of roll effects, collateral income and fees. A commodity index is not a warehouse of physical goods you can redeem freely.
03Gold and transmission into margins
Gold has no contractual coupon: real yields can affect its opportunity cost, while currencies, official-sector demand and risk perceptions also matter. There is no fixed rule that gold must rise whenever inflation rises. Higher energy prices can help producers but raise costs for transport, manufacturing and households. The net impact depends on hedging, pricing power and how quickly costs pass through to selling prices.