
The EIA reports that the Brent benchmark's pricing method will change in 2018, when Platts adds Norway's Troll crude to its Brent assessment. The change responds to declining output from some of the four North Sea grades that currently make up the benchmark.
The change alters how the main global crude benchmark is built, but it does not directly change supply or demand, so its near-term price effect is minor.
After 41 past neutral report events, Crude Oil (Brent) moved a median -1.4% over 5 sessions (41% higher; middle half -4.0% to +1.9%), and +1.8% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.