You have seen it happen. Oil prices drop, your phone lights up with headlines about cheap crude, and you pull up to the pump the next day and pay the same price. Sometimes more. The reason is not a conspiracy. It is just that crude oil and gas at the pump are two completely different things, and most coverage skips the part in between.

Crude and Gas Are Not the Same Thing

WTI crude trades in barrels on the NYMEX. Gasoline trades separately as RBOB futures, which stands for Reformulated Blendstock for Oxygenate Blending. Think of WTI as the raw ingredient and RBOB as the finished product. The gap between them is called the crack spread, and it represents the profit margin a refiner earns by converting crude oil into gasoline.

This is the piece most headlines miss. Crack spreads vary by product and can rise or fall depending on the time of year and on market conditions, which means gasoline can get more expensive even when crude is flat or falling. If refineries are running tight or summer demand is strong, the crack spread widens and pump prices go up regardless of what WTI is doing. Once you understand this, you stop being surprised when oil drops and your gas bill does not.

Canada: Oil in a Foreign Currency

Canada holds the third-largest proven oil reserves in the world. You would expect Canadians to pay cheap prices at the pump. They do not.

The reason is that WTI crude is benchmarked in US dollars. When Canadian refiners price crude, that benchmark converts into Canadian dollars at whatever the exchange rate is that day. When the loonie weakens against the USD, which tends to happen during the same global panics that push crude down, the currency conversion cancels out the relief. Canadians can face rising pump prices even as WTI drops. The two things hit at the same time and work against each other.

There is also a structural problem inside Canada itself. Alberta’s crude is landlocked. Pipeline connections between western oil fields and eastern refineries are limited and politically contested, so Quebec and Atlantic Canada often find it cheaper to import crude from overseas rather than receive it from Alberta. The result is Canadian provinces buying foreign oil priced in USD while sitting in a country with massive domestic reserves.

Here is roughly what goes into a litre of gas in Canada: crude cost converted to CAD (around 40 to 50 percent of the total), federal carbon tax (around 17 to 20 cents per litre), federal excise tax (around 10 cents per litre), provincial fuel tax (10 to 25 cents depending on province), and HST or GST stacked on top of all of it. The carbon tax is fixed and only moves upward on a legislative schedule. Because it is a flat per-litre charge rather than a percentage, it does not shrink when crude falls. It just sits there. BC adds its own carbon pricing on top of the federal system, which is why Metro Vancouver is consistently one of the most expensive places to fill a tank in North America.

During the Russia-Ukraine escalation in early 2022, WTI ran sharply higher over roughly six weeks. The crude move was amplified in Canada because the loonie weakened against the USD at the same time, and then HST applied as a percentage on top of a higher pre-tax price, so the government collected more in dollar terms per litre without changing the rate at all. Drivers felt every layer of the system hit at once.

The United States: Mostly Market-Driven

Cross the border and the structure is simpler, though not simple. Americans buy gas in the same currency crude trades in, so there is no exchange rate layer to navigate. Taxes and fuel regulations still affect prices significantly, but there is no national price cap and no carbon levy, which makes US prices closer to a market signal than most developed countries.

The bigger story in the US is geography. A large share of refining capacity sits along the Gulf Coast in Texas and Louisiana. States close to that belt see pump prices respond quickly to crude moves. States far from it pay a geographic premium. California is the extreme case. RBOB gasoline has its own seasonal specifications, with summer-blend requirements starting March 1 that tend to increase prices several cents from February averages. California compounds this with fuel specs no other state uses, which means when a local refinery goes down, it cannot easily pull supply from the Gulf. That isolation premium can run well above the national average.

Here is roughly what goes into a gallon of US gas: crude cost in USD (around 50 to 55 percent), federal excise tax of 18.4 cents per gallon (unchanged since 1993), state tax ranging from around 20 cents in Texas to over 68 cents in California, refiner margin from the crack spread, and distribution and retailer markup on top.

Distribution matters more than people think. The Colonial Pipeline runs from Houston to New Jersey and carries roughly 45 percent of all fuel consumed on the US East Coast. When it goes down, East Coast prices spike within days even if crude has not moved at all. That happened during the Colonial Pipeline cyberattack in May 2021. WTI barely shifted during the outage. The disruption was purely a distribution event, and the US average hit $3.00 per gallon for the first time since 2014. Infrastructure between the refinery and your tank can matter as much as crude prices, sometimes more.

Prices Go Up Fast and Come Down Slow

This has a name. Economists call it rockets and feathers. A spike in crude hits the pump within a day or two. A drop in crude takes a week to ten days to fully pass through. Stations move fast on the way up to protect margins and drag their feet on the way down to rebuild them. Every driver has experienced this. Now you know what it is called.

How to Predict the Direction Yourself

You cannot predict exact prices, but you can usually figure out which way things are heading. Here is the framework.

Start with WTI futures. Search “WTI crude oil price” or check the EIA’s weekly data at eia.gov. As a rough rule of thumb, a $10 per barrel move in crude translates to approximately 25 cents per gallon at the US pump, or about 6 to 8 cents per litre in Canada, within one to two weeks. Treat this as directional guidance, not a calculator.

Check RBOB gasoline futures alongside WTI. Gasoline and diesel prices move up and down with crude oil, but the crack spread has its own characteristics. If crude is flat but RBOB is rising, refineries are tight or gasoline demand is climbing on its own. This is what pushes pump prices when oil headlines say nothing is happening.

Watch the EIA weekly inventory report, released every Wednesday. It shows how much crude and refined product is sitting in storage. A surprise draw pushes WTI up and the pump follows within days. A surprise build pushes it down. Markets react within minutes of the release.

In Canada, also check the USD/CAD rate. If WTI falls but the loonie weakens at the same time, your relief at the pump will be smaller than the headlines suggest.

Know the seasonal pattern. Every spring, refineries switch from cheaper winter-blend to summer-blend gasoline. Starting March 1, RBOB futures prices tend to increase several cents from February averages to reflect the higher-valued commodity. This happens every year and catches people off guard every year.

Apply the rockets and feathers rule when crude drops. Do not expect the full drop at the pump for at least a week. Budget accordingly.

The pump price is not random. It is crude cost, the crack spread, currency conversion if you are Canadian, refinery capacity, distribution infrastructure, and several layers of tax, all compressed into one number that changes daily. Once you understand the mechanism, you are never confused by the reason again.