Oil Benchmarks and European Power Markets

EIA reports Brent and WTI as regional crude-oil spot assessments in dollars per barrel. The level statistic is Pearson correlation across 1,473 retained common dates. It describes observed price levels only. It does not establish substitution, hedge effectiveness, or a physical link. EIA spot assessments are not futures settlements or executed transactions. [01][02]

For first differences, each pair is the change between successive retained common dates: 1,472 pairs in USD/bbl, with Pearson rho 0.575. There are 326 gaps longer than one calendar day. That count describes spacing; it does not explain the correlation or make each change a 24-hour return. ICE’s Brent futures terms do not show same-clock tradability or hedge performance. [01][04]

Platts names six eligible crude streams: Brent, Forties, Oseberg, Ekofisk, Troll and WTI Midland. Five are North Sea streams; Midland is the one US stream. The basket broadens the common pricing reference across origins. Its count identifies eligible streams, not their weights or physical identity. [03]

May 2, 2023 was the first calendar date when a buyer and seller could bid, offer and/or transact on a WTI Midland cargo for June 2023 delivery and have its value inform the Platts Dated Brent assessment. [03] That date sets eligibility timing. It does not estimate a causal pre/post effect or residual mispricing, and calendar alignment does not establish synchronized trading times.

ICE specifies a standard contract size of 1,000 barrels and a minimum price fluctuation of USD 0.01 per barrel. Quotation is in US dollars and cents per barrel. [04] The tick value follows from multiplying the minimum price change by the contract size. It is not the price of a barrel or of the contract.

The contract is deliverable based on an exchange of futures for physical (EFP), with an option to cash settle against the ICE Brent Index price for the contract’s last trading day. ICE states that it publishes that cash settlement price on the next trading day. [04] The diagram separates three documented properties. They are not sequential routes, and the labels do not imply an automatic cargo allocation.

These are spot marks. EIA labels the series Brent-Europe and WTI-Cushing and defines a spot price as one for a specified quantity and location, purchased for immediate delivery at current market rates [01][02]. Each monthly point averages the two series separately over the same retained dates; EIA’s published method uses an unweighted average of daily closing spot prices [01][02].

The source window contains 1,518 Brent and 1,500 WTI marks. Their date intersection retains 1,473 observations; 72 workbook dates fall outside that common set. No prices were filled. The annual rows count retained observations by year.

For each shared date, the calculation subtracts the WTI-Cushing spot assessment from Brent-Europe, then averages the daily differences within each calendar month. EIA labels the series Brent-Europe and WTI-Cushing, reports crude-oil spot prices in dollars per barrel, and defines monthly prices as unweighted averages of daily closing prices. [01] [02]

Dates align on a calendar. That alignment does not establish synchronized clock times, and the observations cannot test executable arbitrage, freight terms, or causality. Daily extremes remain individual-date statistics, separate from monthly chart points. [01] [02]

Across 1,473 common-date daily observations from January 2, 2020, through December 31, 2025, this is the sole negative WTI spot mark. The largest Brent-minus-WTI price difference in the sample also occurs on April 20, 2020. [01] The chart retains April’s available common-date marks for both series.

EIA labels the series WTI at Cushing, Oklahoma, and Brent in Europe. [01] Its separate April 2020 article concerns the front-month WTI futures event. That context does not make the -$36.98 spot assessment a futures settlement or evidence of an executed trade. [08] Same-date marks do not establish synchronized observation times.

The coupled day-ahead market operates on a 15-minute time unit [07]. Trading started on September 30, 2025. Deliveries began October 1 [05]. This splits the hour into four blocks. An ordinary day expands from 24 to 96 intervals. We calculate the resulting energy using constructed unit arithmetic because the primary documents lack any exchange-measured execution volumes for these isolated periods. A 1 MW load running for one hour equals 1 MWh. A 0.25-hour interval yields 0.25 MWh.

Our primary metric tracks this exact ratio. It measures a fourfold temporal partition. The supplied evidence did not measure computational load or compulsory independent orders. We simply document the formal multiplication of market intervals from 24 to 96 per ordinary day, strictly limiting our observations to the stated rules without assessing any potential changes to market behavior. The primary texts confirm the transition dates. We do not track real liquidity depth.

Each scenario converts consecutive Europe/Berlin local midnights to UTC. The day begins at local 00:00 and ends at the next local 00:00. The elapsed span follows from those boundaries. Calendar arithmetic only. Directive 2000/84/EC defines summer time as clocks advanced by 60 minutes. It sets the period’s start and end at 01:00 GMT on the last Sundays in March and October. [06]

On 2026-03-29, the interval is 23 hours; on 2026-03-30, 24. The 2025-10-26 interval is 25 hours, as the local offset shifts from UTC+02:00 to UTC+01:00. The calculated counts are 92, 96, and 100 quarter-hour intervals, in date order. [07] records the MTU go-live for delivery on 1 October 2025.

EPEX SPOT reported total turnover of 868.21 TWh in 2024 and 917.52 TWh in 2025, a 5.68% rise. Day-ahead volume moved from 653.75 to 676.29 TWh, up 3.45%. [05] Intraday rose from 214.46 to 241.24 TWh, a 12.49% increase. Its share of reported total grew from 24.70% to 26.29%. [05]

These figures describe reported exchange turnover. For auctions, EPEX lists one-sided market-clearing volume. For continuous trading, it divides aggregated buy and sell volume by two. [05] Turnover does not measure order-book depth or bid-ask spread, and these annual totals do not establish strategy profitability. The reported comparison also covers two annual observations, not a clock-synchronized study.

In both markets a figure depends on how its reference is defined. Platts Dated Brent, EIA Brent-Europe and ICE Brent are distinct reference types, so a statistic from one does not transfer to another. [01][03][04] Around clock changes a Berlin civil day holds 92, 96 or 100 quarter-hour intervals, so interval counts compare only within a consistent time unit. [06]

The 60.00 USD/bbl range subtracts the lowest daily basis from the highest and is set by March and April 2020 observations. It is neither profit, fee, spread nor a future risk bound, and the 3.94 USD/bbl sample mean is no stable limit. [01] No hedging or execution design is tested; that would need timestamped bids, offers and fills, transport and imbalance charges, and point-in-time vintages.