West Texas Intermediate — the US benchmark crude oil price, and one of the two global oil benchmarks (alongside Brent) that shape the landed cost of the petroleum Pakistan imports.
Source: Yahoo Finance, WTI crude oil futures (CL=F), monthly closes.
West Texas Intermediate (WTI) is a light, sweet crude oil grade produced in the United States, and its futures price is one of the two global benchmarks used to price crude oil worldwide — the other being Brent, sourced from the North Sea.
Pakistan doesn't produce enough crude domestically to meet demand and imports the majority of its oil needs, so global benchmark prices like WTI (and more directly, Brent, since Pakistan's import cargoes are typically priced closer to Brent) feed almost directly into the country's energy import bill.
WTI and Brent typically move together, since both reflect the same underlying global supply and demand balance, though a persistent gap (the WTI-Brent spread) can open up due to regional supply/transport factors specific to each benchmark's location.
Energy imports make up one of the largest single categories in Pakistan's import bill, so a sustained rise in global crude prices directly widens the trade and current account deficit, adding pressure on foreign reserves and the Rupee.
Fuel costs feed through to domestic transport and electricity prices, making global oil prices one of the more direct external channels of imported inflation into Pakistan's CPI and WPI baskets.