Worked case · World
Ask how much extra oil can arrive
A new route matters when it can perform a defined job at the moment it is needed.
- The alternative carries a different order of volumeIn 2025, Kazakhstan shipped 1.3 million tonnes through Aktau–BTC against 64.8 million through CPC — about 2%.
- Existing shipments are not a spare reserveA growth target must be compared with the oil already using the route before it can support a claim about extra deliveries.
- Define what the route is meant to protectA bypass may preserve some exports, diversify partners or support a particular cargo. Those are different promises from replacing CPC.
There are two easy ways to misread Kazakhstan’s oil route across the Caspian. One is to celebrate a line that avoids Russia as the end of dependence. The other is to dismiss it because the line is small. Both judgments skip the more useful question: which deliveries could it actually protect if the main outlet stopped?
The route connects Aktau to Baku by sea and continues through the Baku–Tbilisi–Ceyhan pipeline, usually abbreviated BTC. Kazakhstan’s much larger outlet is the Caspian Pipeline Consortium, or CPC. It reaches Novorossiysk through Russia, as the US Energy Information Administration’s route description explains. Oil’s national origin and the infrastructure it needs are separate facts.
The interesting geopolitical distinction is between having another customer-facing exit and being able to move additional oil through it under pressure. An existing commercial route establishes the first. The second needs a quantity, a time window and access to every intervening link.
Put the two flows on the same clock
KMG’s 2025 annual destination table records 64.8 million tonnes of Kazakhstan’s oil through CPC. Its year-end account of the Aktau–BTC route gives 1.3 million tonnes. These are national physical flows for the same year, not KMG’s ownership-weighted transportation volumes.
Divide 1.3 by 64.8 and multiply by 100: the smaller flow equals about 2.0% of the larger. Another way to express the same ratio is 7.3 days. An entire year’s Aktau–BTC shipments equalled roughly a week of Kazakhstan’s average CPC flow. That comparison puts the scale in perspective; it does not mean a week’s supply was waiting in reserve.
A denominator can quietly change the story. CPC’s total terminal throughput also includes oil outside the Kazakhstan-only comparison. The Aktau port total covers more than the particular BTC route. Neither is interchangeable with the two figures above. Before evaluating a diversification claim, identify whose oil, which destination and which reporting period the numbers describe.
The extra volume is smaller than the advertised route
KMG describes a 2024 agreement for a gradual increase in the Aktau–Baku–BTC flow to 2.2 million tonnes a year. That is an agreed direction for growth, not evidence of 2.2 million tonnes of unused emergency capacity.
Consider a deliberately favorable hypothetical. CPC’s Kazakhstan flow stops for 30 days. BTC immediately reaches the 2.2 million-tonne annual rate, evenly through the month, while retaining all the shipments already using it. Assume the whole increase above the 2025 baseline is available for displaced CPC oil. These assumptions are a stress-test illustration, not a description of operating conditions.
A thirty-day interruption in an explicit scenario
| Quantity | Calculation | Tonnes over 30 days |
|---|---|---|
| CPC flow exposed | 64,800,000 × 30 ÷ 365 | 5,326,027 |
| Existing BTC flow | 1,300,000 × 30 ÷ 365 | 106,849 |
| BTC at the growth target | 2,200,000 × 30 ÷ 365 | 180,822 |
| Additional volume above baseline | (2,200,000 − 1,300,000) × 30 ÷ 365 | 73,973 |
The extra volume is about 74,000 tonnes against 5.33 million tonnes exposed: roughly 1.4%. Counting all 180,822 tonnes as replacement would silently treat the 106,849 tonnes of existing BTC business as though it had no prior destination. That would answer a different question.
To reproduce the result, subtract 1.3 from 2.2, divide by 64.8, then multiply by 100. The thirty-day window makes the quantities tangible but cancels from this percentage because both assumed rates cover the same interval. Actual daily operations would not necessarily follow either annual average.
This does not establish a maximum for future expansion. It establishes what this particular target would buy under the stated assumptions. A larger future system would need its own evidence. So would a claim that the additional volume can arrive on day one.
The backup route also has a failure mode
There is a concrete reason to resist the word “available.” KMG’s annual report says technical restrictions associated with oil contamination affected BTC shipments in 2025. The company separately records an 8,800-tonne Kashagan cargo leaving Aktau on 13 September when exports through BTC resumed. A functioning alternative had itself suffered an interruption.
Different infrastructure can reduce exposure to one particular failure without removing failures altogether. To turn the scenario above into an operational commitment, an analyst would need evidence about loading slots, vessels, onward pipeline acceptance, acceptable crude quality and delivery timing. One open link cannot demonstrate that the whole chain is open.
This is also why engineering constraints belong in geopolitical analysis. The Panama Canal’s water-saving problem shows how an attractive physical intervention can carry another operating constraint. For an oil bypass, the useful evidence is a chain that can carry the specified extra cargo, not simply a port or pipe appearing on a map.
An alternative to CPC can still cross Russia
Even “alternative route” needs a named risk. KMG describes deliveries to Germany using Atyrau–Samara and onward through Druzhba. That avoids CPC but retains Russian transit. It can therefore address a CPC-specific constraint without establishing geographical independence from Russia.
A terminal interruption, a buyer problem and a transit-country dispute call for different substitutes. A route that helps with one may do little for another. Combining every non-CPC shipment into a single independence number would erase that distinction.
The Baltic electricity case offers a related caution: commercial exchange and the operating relationship are different layers of dependence. Here the distinction is more physical. An export can reach a different terminal while continuing to rely on the same transit state.
Give the small route a precise job
The 2% comparison is not a verdict that BTC is pointless. A small route can be evaluated against a smaller objective: preserving a specified customer relationship, sustaining a defined stream of cargoes or developing an operating chain that can later expand. Each is a plausible purpose; none can be priced or confirmed from annual tonnage alone.
That changes how a useful diversification announcement should be read. The strongest next piece of evidence would identify additional tonnes deliverable within a stated period, the commitments that already occupy the route and the conditions under which the extra service can be activated. Without that, the announcement establishes an ambition or an existing business, while leaving emergency performance unresolved.
Our analysis of Poland’s rearmament distinguishes acquiring equipment from controlling the industrial capabilities behind it. Kazakhstan’s routing question has its own version of that gap: a recognized corridor still needs usable access at the moment of disruption.
The political value of an option depends partly on whether it can be exercised. In this worked case, the advertised growth increment is too small to resemble a replacement for CPC at its 2025 rate. It can still support a narrower, worthwhile strategy — provided the promised job fits the volume and the operating evidence.
Sources and calculation boundaries
- KMG 2025 Annual Report — Midstream supplies the destination table, growth agreement and operating constraints.
- KMG 2025 Sustainability Report — Chairman’s message confirms the year-end Aktau–BTC total.
- EIA — Oil exports through Russian infrastructure supplies geographical context; its historical trade shares are not used as current data.
- KMG — Financial results for nine months of 2025 records the September resumption cargo.
- Calculations use rounded published figures and 365 days. They are a scale comparison and a hypothetical increment, not measured spare capacity, a current dispatch forecast or a sanctions assessment.
