Regions
Provisional demand shares. Product moves only between adjacent regions, at most 70% of a region's supply leaves it, and only Moscow may draw from anywhere. Volume is conserved: what the shield keeps, other regions lose.
Repair chain, spares and maintenance
A hit is not repaired from a warehouse. Each unit class has a national pool of spare sets; once it is empty, the next repair waits for manufacture and grey import. Deferred turnarounds raise the chance of unplanned stops until the winter wave runs them.
What moves the number
Ledger for the selected horizon, kt per week
Beyond repair at this horizon
Who pays
Refinery registry
Anchored constants
Movable only inside a published range. Override them through the scenario JSON with a source; the override is listed in the passport.
Scenario passport
Everything a reader needs to reproduce or dispute this scenario. It travels with every export.