CPC Blend crude offers out of Russia’s Black Sea export hub at Novorossiysk have been marked down sharply this week, after renewed drone activity at sea and persistent winter weather disrupted loadings and raised transport risk for traders and refiners.
According to trading sources cited by Reuters, the pullback in bids has been reflected directly in differential pricing for CPC Blend, a light sour grade produced largely in Kazakhstan and exported via the Caspian Pipeline Consortium (CPC) system to the CPC marine terminal near Novorossiysk.
In the Platts trading window on Thursday, ExxonMobil — a shareholder in CPC — offered a 120,000-metric-ton cargo at a discount of $1.35 a barrel to the Brent benchmark, Reuters reported. The cargo failed to attract buyers and the offer was withdrawn. That marked a steep move from Wednesday, when the same volume was offered at a discount of 40 cents a barrel. One physical oil trader told Reuters that Wednesday’s differential already looked cheap against prevailing market levels.
Market participants said the wider discount was driven less by any change in crude quality than by the practical and financial costs of lifting the cargo. When a route is perceived as high-risk — whether because of security threats, restricted port operations, or delays that can tie up vessels — the buyer typically demands a larger discount to compensate for extra insurance, potential demurrage, and uncertainty around delivery schedules.
The security element has sharpened after drone attacks in the Black Sea hit at least two oil tankers on Tuesday while they were sailing towards the CPC terminal area, including one vessel chartered by Chevron, Reuters reported. The incidents prompted Kazakhstan to urge the United States and European countries to help safeguard oil transport routes, warning about the growing risks to international energy infrastructure.
Kazakhstan asks West to protect Black Sea oil corridor after drone strikes on tankers
CPC Blend is a key feedstock for multiple European refineries, and it also has regular Asian buyers. Reuters quoted one trading source as saying companies were monitoring the situation and that any additional costs would need to be reflected in the grade’s price, though the source added there had been no instruction to halt purchases.
Operational constraints at the export terminal have compounded the security risk. Reuters said CPC is currently loading via one of its three single-point moorings, SPM-1, after SPM-2 was taken out of operation following a Ukrainian drone strike in November. Maintenance work on SPM-3 has been delayed since December due to poor weather. In normal operations, two moorings are typically used, with the third acting as backup; the loss of redundancy increases the impact of any disruption, whether from storms or attacks.
The issue matters well beyond the immediate market for a single crude grade. Reuters reported that CPC accounts for about 1.5 per cent of global oil supply and handles roughly 80 per cent of Kazakhstan’s oil exports. Kazakhstan’s largest production projects — including fields operated with Western partners — rely heavily on CPC for access to international markets, making the pipeline and its Black Sea terminal a strategic chokepoint for both the country’s budget revenues and the supply chain of refiners that depend on steady liftings.
For European refiners, CPC Blend has been an important alternative stream in a market reshaped by sanctions and changing trade flows since Russia’s full-scale invasion of Ukraine. A sustained security premium on Black Sea cargoes would not necessarily remove CPC barrels from the market, but it could alter the economics of procurement, shifting demand towards other grades if the discount proves insufficient to offset risk or if schedules become unreliable.
There are limited near-term alternatives for diverting large volumes of Kazakh crude away from the CPC route. Kazakhstan has periodically used other channels, including shipments through the Baku–Tbilisi–Ceyhan pipeline, but those flows are smaller and depend on available capacity and commercial terms. Any prolonged disruption at Novorossiysk would therefore be likely to show up in larger discounts on CPC Blend, tighter availability for refiners optimised for the grade, and potentially higher freight and insurance costs for liftings across the Black Sea.
The latest price moves also underline the sensitivity of physical oil markets to non-price shocks. While global benchmarks such as Brent are driven by broad supply-demand expectations and financial positioning, the differential on a specific grade can swing quickly when the practicalities of loading and shipping change. In this case, traders have signalled that even a widely used grade supplying Europe can require a deeper markdown when the export system is operating with reduced equipment and when attacks at sea introduce uncertainty on voyage execution.
Whether the discount persists will depend on the stability of loadings at the CPC terminal, the pace of repairs and maintenance at the moorings, and the frequency of further drone incidents in the Black Sea corridor used by tankers approaching Novorossiysk.
