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Energy: oil and gas

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Energy: oil and gas

Energy is the lifeblood of the global economy. Crude oil fuels transportation, chemicals, and plastics; natural gas heats homes and generates electricity; coal (covered separately in resource allocation literature) powers industrial processes. Of these, crude oil and natural gas dominate commodity markets as the most actively traded, most price-volatile, and most geopolitically sensitive.

Crude oil is priced in barrels—a standard 42-gallon unit adopted more than a century ago. Global demand runs at roughly 100 million barrels per day; a single percentage-point shortfall or surplus can swing prices by tens of dollars per barrel. The two major benchmarks are Brent (North Sea crude, used globally) and WTI (West Texas Intermediate, US-focused). Understanding the difference matters: Brent is lighter, sweeter (lower sulfur), and therefore cheaper to refine. WTI historically traded at a small discount to Brent because it's heavier and sour. For most of the past 50 years, this premium relationship held stable until US shale production and export bans distorted it.

The global oil market is fundamentally a story of four forces: OPEC (especially Saudi Arabia), non-OPEC producers (Russia, Norway, Canada), US shale, and China. Saudi Arabia can adjust production flexibly, making it the "swing producer"—the source of marginal supply. When OPEC members cut production in agreement, global crude prices rise. When production discipline breaks down, prices crash. Russia is a major swing producer; the 2022 Ukraine invasion disrupted global supply and sent crude toward $140/barrel.

Natural gas is trickier. Unlike crude oil, which trades globally via tankers, natural gas requires pipelines (for long-distance transport) or liquefaction into LNG (liquefied natural gas), which is expensive. This means natural gas prices vary dramatically by region: US Henry Hub, European NBP (National Balancing Point), and Asian LNG prices can diverge by factors of five. Storage is critical: natural gas is injected underground in summer when demand is low, then withdrawn in winter when heating demand spikes. A mild winter floods storage; a cold winter drains it. Prices move violently on weather forecasts.

The shale revolution (starting around 2008) transformed energy fundamentals. Hydraulic fracturing and horizontal drilling unlocked vast US crude and natural gas deposits in the Permian, Eagle Ford, and Bakken. US crude production surged from 5 million barrels per day in 2008 to over 13 million by 2020. This eliminated US vulnerability to Middle Eastern supply shocks and turned America into a net exporter. It also created structural oversupply in 2014–2016, when crude crashed to $30/barrel.

For investors, energy commodities offer exposure to geopolitical risk (OPEC cuts, sanctions, wars), technological change (electric vehicles, renewable energy), and cyclical demand (recessions drain oil and gas demand). Energy is where macroeconomic, microeconomic, and geopolitical risk converge. A trade war can collapse oil demand; a hurricane in the Gulf of Mexico can shut in production; a OPEC agreement can bid prices $10 per barrel higher in a single day. This volatility creates opportunities for informed traders and portfolio managers.

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