Diesel Price Cut Rs32.63 as Govt Caps Refinery Crack Spread: NRL, PRL Stocks in Focus

Pakistan's government has once again applied the crack spread formula it introduced in April to hold down high speed diesel (HSD) prices, according to a report in The News. Under the mechanism, the diesel crack spread, the gap between the cost of crude oil and the price refiners can charge for the finished diesel they produce, has been capped at $41.5 per barrel, well below the roughly $68 per barrel margin available on the international market right now. The result is a Rs32.63 per litre cut, bringing domestic diesel down to Rs363.69 per litre. Petrol moved the other way, rising Rs2.97 per litre to Rs337.51 per litre, since this particular formula only covers diesel.

The arrangement followed virtual meetings between the petroleum minister, the petroleum secretary and the top managements of four Karachi based refineries, who agreed to absorb part of their refining profit on diesel rather than pass the full international margin on to consumers. Officials told The News this is the second time refiners have made this trade off since the Iran war pushed global oil prices sharply higher.

Why National Refinery and Pakistan Refinery Stocks Are in Focus

For National Refinery and Pakistan Refinery, a large share of profitability comes from the crack spread itself, the difference between what they pay for imported crude and what they can charge for the diesel, petrol and other products refined from it. A government imposed cap on that spread means a smaller profit on every barrel of diesel they process, even though their crude costs and refining volumes have not changed. This does not turn their diesel operations loss making, since a margin is still earned below the cap, and it is the kind of squeeze that shows up in the next quarter's refining segment results rather than as an immediate shock.

Which Stocks, and Why

National Refinery and Pakistan Refinery both operate Karachi refineries and were the PSX-listed names among the group asked to hold diesel prices down this time. Neither company was named individually in the report, which described the participants only as "four Karachi based refineries," so the direct scale of the hit to each one is not yet public. What is clear is that diesel is typically the highest volume product Pakistani refineries sell, so a formula that specifically targets the diesel margin, rather than petrol or other products, reaches a meaningful part of their revenue mix. Petrol margins, unaffected by this adjustment, continue as before.

This is a government relief measure tied to an unusually wide gap between local and international refining margins, not a structural change to how these companies are regulated, and it can be unwound once that gap narrows.

What to Watch

Pakistan's fuel prices are reviewed roughly every two weeks, so the next official price notification is the first checkpoint for whether the $41.5 per barrel cap stays, tightens further, or lapses. International diesel crack spreads and crude prices are the underlying driver: if the elevated levels tied to the Iran war ease, the formula has less reason to bite. National Refinery and Pakistan Refinery's next quarterly results will also show, in actual rupee terms, how much this kind of price relief has cost their refining margins.